kground reconstruction
[  499.101957][T15023] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  499.101967][T15023] md: pers->run() failed ...
[  499.204248][T15025] md: could not open device unknown-block(1,0).
[  499.204595][T15025] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  499.261998][T15025] md/raid:md0: not clean -- starting background reconstruction
[  499.262022][T15025] md/raid:md0: not enough configured devices (1, minimum 2)
[  499.262033][T15025] md: pers->run() failed ...
executing program
[  499.344218][T15027] md: could not open device unknown-block(1,0).
[  499.344553][T15027] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  499.401579][T15027] md/raid:md0: not clean -- starting background reconstruction
[  499.401601][T15027] md/raid:md0: not enough configured devices (1, minimum 2)
[  499.401609][T15027] md: pers->run() failed ...
executing program
[  499.494274][T15029] md: could not open device unknown-block(1,0).
[  499.494627][T15029] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  499.571923][T15029] md/raid:md0: not clean -- starting background reconstruction
[  499.571947][T15029] md/raid:md0: not enough configured devices (1, minimum 2)
[  499.571958][T15029] md: pers->run() failed ...
executing program
[  499.674211][T15031] md: could not open device unknown-block(1,0).
[  499.674564][T15031] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  499.731453][T15031] md/raid:md0: not clean -- starting background reconstruction
[  499.731486][T15031] md/raid:md0: not enough configured devices (1, minimum 2)
[  499.731497][T15031] md: pers->run() failed ...
executing program
[  499.864378][T15033] md: could not open device unknown-block(1,0).
[  499.864778][T15033] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  499.911572][T15033] md/raid:md0: not clean -- starting background reconstruction
[  499.911602][T15033] md/raid:md0: not enough configured devices (1, minimum 2)
[  499.911627][T15033] md: pers->run() failed ...
executing program
[  500.034240][T15035] md: could not open device unknown-block(1,0).
[  500.034588][T15035] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.081387][T15035] md/raid:md0: not clean -- starting background reconstruction
[  500.081413][T15035] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  500.081421][T15035] md: pers->run() failed ...
[  500.174294][T15037] md: could not open device unknown-block(1,0).
[  500.174617][T15037] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.221470][T15037] md/raid:md0: not clean -- starting background reconstruction
[  500.221494][T15037] md/raid:md0: not enough configured devices (1, minimum 2)
[  500.221505][T15037] md: pers->run() failed ...
executing program
[  500.304237][T15039] md: could not open device unknown-block(1,0).
[  500.304568][T15039] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.351455][T15039] md/raid:md0: not clean -- starting background reconstruction
[  500.351479][T15039] md/raid:md0: not enough configured devices (1, minimum 2)
[  500.351489][T15039] md: pers->run() failed ...
executing program
[  500.434241][T15041] md: could not open device unknown-block(1,0).
[  500.434586][T15041] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.491754][T15041] md/raid:md0: not clean -- starting background reconstruction
[  500.491779][T15041] md/raid:md0: not enough configured devices (1, minimum 2)
[  500.491789][T15041] md: pers->run() failed ...
executing program
[  500.594228][T15043] md: could not open device unknown-block(1,0).
[  500.594552][T15043] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.671464][T15043] md/raid:md0: not clean -- starting background reconstruction
[  500.671487][T15043] md/raid:md0: not enough configured devices (1, minimum 2)
[  500.671498][T15043] md: pers->run() failed ...
executing program
[  500.764298][T15045] md: could not open device unknown-block(1,0).
[  500.764652][T15045] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.841385][T15045] md/raid:md0: not clean -- starting background reconstruction
[  500.841409][T15045] md/raid:md0: not enough configured devices (1, minimum 2)
[  500.841420][T15045] md: pers->run() failed ...
executing program
[  500.944331][T15047] md: could not open device unknown-block(1,0).
[  500.944712][T15047] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  500.991604][T15047] md/raid:md0: not clean -- starting background reconstruction
[  500.991630][T15047] md/raid:md0: not enough configured devices (1, minimum 2)
[  500.991640][T15047] md: pers->run() failed ...
executing program
[  501.074243][T15049] md: could not open device unknown-block(1,0).
[  501.074577][T15049] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.121829][T15049] md/raid:md0: not clean -- starting background reconstruction
[  501.121852][T15049] md/raid:md0: not enough configured devices (1, minimum 2)
[  501.121859][T15049] md: pers->run() failed ...
executing program
[  501.204273][T15051] md: could not open device unknown-block(1,0).
[  501.204974][T15051] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.251356][T15051] md/raid:md0: not clean -- starting background reconstruction
[  501.251380][T15051] md/raid:md0: not enough configured devices (1, minimum 2)
[  501.251390][T15051] md: pers->run() failed ...
executing program
[  501.334213][T15053] md: could not open device unknown-block(1,0).
[  501.334530][T15053] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.391789][T15053] md/raid:md0: not clean -- starting background reconstruction
[  501.391814][T15053] md/raid:md0: not enough configured devices (1, minimum 2)
[  501.391825][T15053] md: pers->run() failed ...
executing program
[  501.474212][T15055] md: could not open device unknown-block(1,0).
[  501.474543][T15055] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.531374][T15055] md/raid:md0: not clean -- starting background reconstruction
[  501.531398][T15055] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  501.531408][T15055] md: pers->run() failed ...
[  501.594234][T15057] md: could not open device unknown-block(1,0).
[  501.594586][T15057] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.661476][T15057] md/raid:md0: not clean -- starting background reconstruction
[  501.661500][T15057] md/raid:md0: not enough configured devices (1, minimum 2)
[  501.661511][T15057] md: pers->run() failed ...
executing program
[  501.754257][T15059] md: could not open device unknown-block(1,0).
[  501.754644][T15059] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.801385][T15059] md/raid:md0: not clean -- starting background reconstruction
[  501.801407][T15059] md/raid:md0: not enough configured devices (1, minimum 2)
[  501.801416][T15059] md: pers->run() failed ...
executing program
[  501.884222][T15061] md: could not open device unknown-block(1,0).
[  501.884556][T15061] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  501.941444][T15061] md/raid:md0: not clean -- starting background reconstruction
[  501.941468][T15061] md/raid:md0: not enough configured devices (1, minimum 2)
[  501.941478][T15061] md: pers->run() failed ...
executing program
[  502.034212][T15063] md: could not open device unknown-block(1,0).
[  502.034553][T15063] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.091922][T15063] md/raid:md0: not clean -- starting background reconstruction
[  502.091948][T15063] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.091974][T15063] md: pers->run() failed ...
executing program
[  502.184218][T15065] md: could not open device unknown-block(1,0).
[  502.184549][T15065] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.231546][T15065] md/raid:md0: not clean -- starting background reconstruction
executing program
[  502.231570][T15065] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.231581][T15065] md: pers->run() failed ...
[  502.304298][T15067] md: could not open device unknown-block(1,0).
[  502.305041][T15067] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.351541][T15067] md/raid:md0: not clean -- starting background reconstruction
[  502.351567][T15067] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.351578][T15067] md: pers->run() failed ...
executing program
[  502.444208][T15069] md: could not open device unknown-block(1,0).
[  502.444541][T15069] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.492107][T15069] md/raid:md0: not clean -- starting background reconstruction
[  502.492131][T15069] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.492155][T15069] md: pers->run() failed ...
executing program
[  502.584233][T15071] md: could not open device unknown-block(1,0).
[  502.584562][T15071] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.702034][T15071] md/raid:md0: not clean -- starting background reconstruction
[  502.702059][T15071] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.702069][T15071] md: pers->run() failed ...
executing program
[  502.774302][T15073] md: could not open device unknown-block(1,0).
[  502.774675][T15073] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.841940][T15073] md/raid:md0: not clean -- starting background reconstruction
[  502.841964][T15073] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.841975][T15073] md: pers->run() failed ...
executing program
[  502.924213][T15075] md: could not open device unknown-block(1,0).
[  502.924545][T15075] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  502.981642][T15075] md/raid:md0: not clean -- starting background reconstruction
executing program
[  502.981668][T15075] md/raid:md0: not enough configured devices (1, minimum 2)
[  502.981679][T15075] md: pers->run() failed ...
[  503.054291][T15077] md: could not open device unknown-block(1,0).
[  503.054671][T15077] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.111874][T15077] md/raid:md0: not clean -- starting background reconstruction
[  503.111898][T15077] md/raid:md0: not enough configured devices (1, minimum 2)
[  503.111921][T15077] md: pers->run() failed ...
executing program
[  503.194331][T15079] md: could not open device unknown-block(1,0).
[  503.194693][T15079] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.241663][T15079] md/raid:md0: not clean -- starting background reconstruction
[  503.241686][T15079] md/raid:md0: not enough configured devices (1, minimum 2)
[  503.241696][T15079] md: pers->run() failed ...
executing program
[  503.324709][T15081] md: could not open device unknown-block(1,0).
[  503.325027][T15081] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.381473][T15081] md/raid:md0: not clean -- starting background reconstruction
[  503.381497][T15081] md/raid:md0: not enough configured devices (1, minimum 2)
[  503.381508][T15081] md: pers->run() failed ...
executing program
[  503.444231][T15083] md: could not open device unknown-block(1,0).
[  503.444568][T15083] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.511524][T15083] md/raid:md0: not clean -- starting background reconstruction
[  503.511549][T15083] md/raid:md0: not enough configured devices (1, minimum 2)
[  503.511561][T15083] md: pers->run() failed ...
executing program
[  503.594215][T15085] md: could not open device unknown-block(1,0).
[  503.594537][T15085] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.651409][T15085] md/raid:md0: not clean -- starting background reconstruction
[  503.651432][T15085] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  503.651446][T15085] md: pers->run() failed ...
[  503.714220][T15087] md: could not open device unknown-block(1,0).
[  503.714552][T15087] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.781366][T15087] md/raid:md0: not clean -- starting background reconstruction
[  503.781390][T15087] md/raid:md0: not enough configured devices (1, minimum 2)
[  503.781400][T15087] md: pers->run() failed ...
executing program
[  503.874342][T15089] md: could not open device unknown-block(1,0).
[  503.875047][T15089] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  503.941407][T15089] md/raid:md0: not clean -- starting background reconstruction
[  503.941434][T15089] md/raid:md0: not enough configured devices (1, minimum 2)
[  503.941442][T15089] md: pers->run() failed ...
executing program
[  504.044227][T15091] md: could not open device unknown-block(1,0).
[  504.044558][T15091] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.091407][T15091] md/raid:md0: not clean -- starting background reconstruction
[  504.091433][T15091] md/raid:md0: not enough configured devices (1, minimum 2)
[  504.091440][T15091] md: pers->run() failed ...
executing program
[  504.174210][T15093] md: could not open device unknown-block(1,0).
[  504.174539][T15093] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.231914][T15093] md/raid:md0: not clean -- starting background reconstruction
[  504.231938][T15093] md/raid:md0: not enough configured devices (1, minimum 2)
[  504.231948][T15093] md: pers->run() failed ...
executing program
[  504.314262][T15095] md: could not open device unknown-block(1,0).
[  504.314607][T15095] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.371539][T15095] md/raid:md0: not clean -- starting background reconstruction
[  504.371562][T15095] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  504.371569][T15095] md: pers->run() failed ...
[  504.444658][T15097] md: could not open device unknown-block(1,0).
[  504.444990][T15097] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.491340][T15097] md/raid:md0: not clean -- starting background reconstruction
[  504.491363][T15097] md/raid:md0: not enough configured devices (1, minimum 2)
[  504.491374][T15097] md: pers->run() failed ...
executing program
[  504.574252][T15099] md: could not open device unknown-block(1,0).
[  504.574594][T15099] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.631485][T15099] md/raid:md0: not clean -- starting background reconstruction
[  504.631508][T15099] md/raid:md0: not enough configured devices (1, minimum 2)
[  504.631529][T15099] md: pers->run() failed ...
executing program
[  504.714211][T15101] md: could not open device unknown-block(1,0).
[  504.714560][T15101] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.761950][T15101] md/raid:md0: not clean -- starting background reconstruction
[  504.761975][T15101] md/raid:md0: not enough configured devices (1, minimum 2)
[  504.761986][T15101] md: pers->run() failed ...
executing program
[  504.844213][T15103] md: could not open device unknown-block(1,0).
[  504.844545][T15103] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  504.901885][T15103] md/raid:md0: not clean -- starting background reconstruction
[  504.901910][T15103] md/raid:md0: not enough configured devices (1, minimum 2)
[  504.901921][T15103] md: pers->run() failed ...
executing program
[  504.984247][T15105] md: could not open device unknown-block(1,0).
[  504.984620][T15105] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.032315][T15105] md/raid:md0: not clean -- starting background reconstruction
[  505.032339][T15105] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  505.032349][T15105] md: pers->run() failed ...
[  505.124269][T15107] md: could not open device unknown-block(1,0).
[  505.124644][T15107] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.191475][T15107] md/raid:md0: not clean -- starting background reconstruction
[  505.191502][T15107] md/raid:md0: not enough configured devices (1, minimum 2)
[  505.191512][T15107] md: pers->run() failed ...
executing program
[  505.284209][T15109] md: could not open device unknown-block(1,0).
[  505.284538][T15109] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.351558][T15109] md/raid:md0: not clean -- starting background reconstruction
[  505.351582][T15109] md/raid:md0: not enough configured devices (1, minimum 2)
[  505.351592][T15109] md: pers->run() failed ...
executing program
[  505.424240][T15111] md: could not open device unknown-block(1,0).
[  505.424580][T15111] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.491812][T15111] md/raid:md0: not clean -- starting background reconstruction
[  505.491836][T15111] md/raid:md0: not enough configured devices (1, minimum 2)
[  505.491847][T15111] md: pers->run() failed ...
executing program
[  505.584211][T15113] md: could not open device unknown-block(1,0).
[  505.584554][T15113] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.641887][T15113] md/raid:md0: not clean -- starting background reconstruction
[  505.641911][T15113] md/raid:md0: not enough configured devices (1, minimum 2)
[  505.641922][T15113] md: pers->run() failed ...
executing program
[  505.734294][T15115] md: could not open device unknown-block(1,0).
[  505.734665][T15115] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.791407][T15115] md/raid:md0: not clean -- starting background reconstruction
[  505.791435][T15115] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  505.791445][T15115] md: pers->run() failed ...
[  505.894249][T15117] md: could not open device unknown-block(1,0).
[  505.894597][T15117] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  505.941559][T15117] md/raid:md0: not clean -- starting background reconstruction
[  505.941583][T15117] md/raid:md0: not enough configured devices (1, minimum 2)
[  505.941593][T15117] md: pers->run() failed ...
executing program
[  506.044256][T15119] md: could not open device unknown-block(1,0).
[  506.044601][T15119] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  506.121533][T15119] md/raid:md0: not clean -- starting background reconstruction
[  506.121557][T15119] md/raid:md0: not enough configured devices (1, minimum 2)
[  506.121565][T15119] md: pers->run() failed ...
executing program
[  506.204378][T15121] md: could not open device unknown-block(1,0).
[  506.204805][T15121] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  506.251540][T15121] md/raid:md0: not clean -- starting background reconstruction
[  506.251564][T15121] md/raid:md0: not enough configured devices (1, minimum 2)
[  506.251575][T15121] md: pers->run() failed ...
executing program
[  506.334216][T15123] md: could not open device unknown-block(1,0).
[  506.334543][T15123] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  506.391444][T15123] md/raid:md0: not clean -- starting background reconstruction
[  506.391468][T15123] md/raid:md0: not enough configured devices (1, minimum 2)
[  506.391479][T15123] md: pers->run() failed ...
executing program
[  506.474213][T15125] md: could not open device unknown-block(1,0).
[  506.474543][T15125] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  506.541752][T15125] md/raid:md0: not clean -- starting background reconstruction
[  506.541776][T15125] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  506.541786][T15125] md: pers->run() failed ...
[  506.664289][T15127] md: could not open device unknown-block(1,0).
[  506.664638][T15127] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  506.711955][T15127] md/raid:md0: not clean -- starting background reconstruction
[  506.711978][T15127] md/raid:md0: not enough configured devices (1, minimum 2)
[  506.711988][T15127] md: pers->run() failed ...
executing program
[  506.804242][T15129] md: could not open device unknown-block(1,0).
[  506.804555][T15129] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  506.891392][T15129] md/raid:md0: not clean -- starting background reconstruction
[  506.891416][T15129] md/raid:md0: not enough configured devices (1, minimum 2)
[  506.891439][T15129] md: pers->run() failed ...
executing program
[  506.994220][T15131] md: could not open device unknown-block(1,0).
[  506.994543][T15131] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.051403][T15131] md/raid:md0: not clean -- starting background reconstruction
[  507.051430][T15131] md/raid:md0: not enough configured devices (1, minimum 2)
[  507.051441][T15131] md: pers->run() failed ...
executing program
[  507.134208][T15133] md: could not open device unknown-block(1,0).
[  507.134537][T15133] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.191498][T15133] md/raid:md0: not clean -- starting background reconstruction
[  507.191520][T15133] md/raid:md0: not enough configured devices (1, minimum 2)
[  507.191527][T15133] md: pers->run() failed ...
executing program
[  507.274225][T15135] md: could not open device unknown-block(1,0).
[  507.274563][T15135] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.331484][T15135] md/raid:md0: not clean -- starting background reconstruction
[  507.331512][T15135] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  507.331523][T15135] md: pers->run() failed ...
[  507.404776][T15137] md: could not open device unknown-block(1,0).
[  507.405128][T15137] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.461570][T15137] md/raid:md0: not clean -- starting background reconstruction
[  507.461595][T15137] md/raid:md0: not enough configured devices (1, minimum 2)
[  507.461606][T15137] md: pers->run() failed ...
executing program
[  507.544309][T15139] md: could not open device unknown-block(1,0).
[  507.544685][T15139] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.592480][T15139] md/raid:md0: not clean -- starting background reconstruction
[  507.592505][T15139] md/raid:md0: not enough configured devices (1, minimum 2)
[  507.592527][T15139] md: pers->run() failed ...
executing program
[  507.684332][T15141] md: could not open device unknown-block(1,0).
[  507.684702][T15141] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.731485][T15141] md/raid:md0: not clean -- starting background reconstruction
[  507.731509][T15141] md/raid:md0: not enough configured devices (1, minimum 2)
[  507.731520][T15141] md: pers->run() failed ...
executing program
[  507.814226][T15143] md: could not open device unknown-block(1,0).
[  507.814556][T15143] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  507.861585][T15143] md/raid:md0: not clean -- starting background reconstruction
[  507.861611][T15143] md/raid:md0: not enough configured devices (1, minimum 2)
[  507.861622][T15143] md: pers->run() failed ...
executing program
[  507.964222][T15145] md: could not open device unknown-block(1,0).
[  507.964540][T15145] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.011737][T15145] md/raid:md0: not clean -- starting background reconstruction
[  508.011760][T15145] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  508.011768][T15145] md: pers->run() failed ...
[  508.124281][T15147] md: could not open device unknown-block(1,0).
[  508.124655][T15147] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.171392][T15147] md/raid:md0: not clean -- starting background reconstruction
[  508.171415][T15147] md/raid:md0: not enough configured devices (1, minimum 2)
[  508.171429][T15147] md: pers->run() failed ...
executing program
[  508.254249][T15149] md: could not open device unknown-block(1,0).
[  508.254593][T15149] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.301508][T15149] md/raid:md0: not clean -- starting background reconstruction
[  508.301533][T15149] md/raid:md0: not enough configured devices (1, minimum 2)
[  508.301540][T15149] md: pers->run() failed ...
executing program
[  508.384212][T15151] md: could not open device unknown-block(1,0).
[  508.384543][T15151] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.431548][T15151] md/raid:md0: not clean -- starting background reconstruction
[  508.431575][T15151] md/raid:md0: not enough configured devices (1, minimum 2)
[  508.431585][T15151] md: pers->run() failed ...
executing program
[  508.514323][T15153] md: could not open device unknown-block(1,0).
[  508.514718][T15153] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.571526][T15153] md/raid:md0: not clean -- starting background reconstruction
[  508.571551][T15153] md/raid:md0: not enough configured devices (1, minimum 2)
[  508.571561][T15153] md: pers->run() failed ...
executing program
[  508.674220][T15155] md: could not open device unknown-block(1,0).
[  508.674566][T15155] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.731836][T15155] md/raid:md0: not clean -- starting background reconstruction
[  508.731860][T15155] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  508.731871][T15155] md: pers->run() failed ...
[  508.824256][T15157] md: could not open device unknown-block(1,0).
[  508.824593][T15157] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  508.871520][T15157] md/raid:md0: not clean -- starting background reconstruction
[  508.871544][T15157] md/raid:md0: not enough configured devices (1, minimum 2)
[  508.871554][T15157] md: pers->run() failed ...
executing program
[  508.954214][T15159] md: could not open device unknown-block(1,0).
[  508.954548][T15159] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.011433][T15159] md/raid:md0: not clean -- starting background reconstruction
[  509.011461][T15159] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.011472][T15159] md: pers->run() failed ...
executing program
[  509.094349][T15161] md: could not open device unknown-block(1,0).
[  509.094738][T15161] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.141438][T15161] md/raid:md0: not clean -- starting background reconstruction
[  509.141462][T15161] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.141473][T15161] md: pers->run() failed ...
executing program
[  509.234215][T15163] md: could not open device unknown-block(1,0).
[  509.234547][T15163] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.292083][T15163] md/raid:md0: not clean -- starting background reconstruction
[  509.292108][T15163] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.292116][T15163] md: pers->run() failed ...
executing program
[  509.384213][T15165] md: could not open device unknown-block(1,0).
[  509.384562][T15165] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.461943][T15165] md/raid:md0: not clean -- starting background reconstruction
executing program
[  509.461970][T15165] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.461980][T15165] md: pers->run() failed ...
[  509.564235][T15167] md: could not open device unknown-block(1,0).
[  509.564737][T15167] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.631345][T15167] md/raid:md0: not clean -- starting background reconstruction
[  509.631372][T15167] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.631382][T15167] md: pers->run() failed ...
executing program
[  509.714243][T15169] md: could not open device unknown-block(1,0).
[  509.714606][T15169] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.761509][T15169] md/raid:md0: not clean -- starting background reconstruction
[  509.761532][T15169] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.761539][T15169] md: pers->run() failed ...
executing program
[  509.844360][T15171] md: could not open device unknown-block(1,0).
[  509.844734][T15171] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  509.891546][T15171] md/raid:md0: not clean -- starting background reconstruction
[  509.891568][T15171] md/raid:md0: not enough configured devices (1, minimum 2)
[  509.891592][T15171] md: pers->run() failed ...
executing program
[  509.974246][T15173] md: could not open device unknown-block(1,0).
[  509.974604][T15173] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.061468][T15173] md/raid:md0: not clean -- starting background reconstruction
[  510.061492][T15173] md/raid:md0: not enough configured devices (1, minimum 2)
[  510.061503][T15173] md: pers->run() failed ...
executing program
[  510.154685][T15175] md: could not open device unknown-block(1,0).
[  510.155006][T15175] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.211423][T15175] md/raid:md0: not clean -- starting background reconstruction
[  510.211451][T15175] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  510.211462][T15175] md: pers->run() failed ...
[  510.274238][T15177] md: could not open device unknown-block(1,0).
[  510.274577][T15177] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.331368][T15177] md/raid:md0: not clean -- starting background reconstruction
[  510.331392][T15177] md/raid:md0: not enough configured devices (1, minimum 2)
[  510.331400][T15177] md: pers->run() failed ...
executing program
[  510.424216][T15179] md: could not open device unknown-block(1,0).
[  510.424561][T15179] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.491455][T15179] md/raid:md0: not clean -- starting background reconstruction
[  510.491479][T15179] md/raid:md0: not enough configured devices (1, minimum 2)
[  510.491504][T15179] md: pers->run() failed ...
executing program
[  510.574248][T15181] md: could not open device unknown-block(1,0).
[  510.574581][T15181] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.621958][T15181] md/raid:md0: not clean -- starting background reconstruction
[  510.621983][T15181] md/raid:md0: not enough configured devices (1, minimum 2)
[  510.621993][T15181] md: pers->run() failed ...
executing program
[  510.704224][T15183] md: could not open device unknown-block(1,0).
[  510.704539][T15183] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.761334][T15183] md/raid:md0: not clean -- starting background reconstruction
[  510.761358][T15183] md/raid:md0: not enough configured devices (1, minimum 2)
[  510.761366][T15183] md: pers->run() failed ...
executing program
[  510.844207][T15185] md: could not open device unknown-block(1,0).
[  510.844544][T15185] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  510.891358][T15185] md/raid:md0: not clean -- starting background reconstruction
[  510.891383][T15185] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  510.891393][T15185] md: pers->run() failed ...
[  510.964215][T15187] md: could not open device unknown-block(1,0).
[  510.964581][T15187] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.021497][T15187] md/raid:md0: not clean -- starting background reconstruction
[  511.021520][T15187] md/raid:md0: not enough configured devices (1, minimum 2)
[  511.021530][T15187] md: pers->run() failed ...
executing program
[  511.104287][T15189] md: could not open device unknown-block(1,0).
[  511.104698][T15189] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.161854][T15189] md/raid:md0: not clean -- starting background reconstruction
[  511.161880][T15189] md/raid:md0: not enough configured devices (1, minimum 2)
[  511.161890][T15189] md: pers->run() failed ...
executing program
[  511.244217][T15191] md: could not open device unknown-block(1,0).
[  511.244552][T15191] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.291612][T15191] md/raid:md0: not clean -- starting background reconstruction
[  511.291637][T15191] md/raid:md0: not enough configured devices (1, minimum 2)
[  511.291647][T15191] md: pers->run() failed ...
executing program
[  511.374219][T15193] md: could not open device unknown-block(1,0).
[  511.374577][T15193] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.432010][T15193] md/raid:md0: not clean -- starting background reconstruction
[  511.432036][T15193] md/raid:md0: not enough configured devices (1, minimum 2)
[  511.432047][T15193] md: pers->run() failed ...
executing program
[  511.514633][T15195] md: could not open device unknown-block(1,0).
[  511.514975][T15195] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.561521][T15195] md/raid:md0: not clean -- starting background reconstruction
[  511.561545][T15195] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  511.561556][T15195] md: pers->run() failed ...
[  511.684275][T15197] md: could not open device unknown-block(1,0).
[  511.684646][T15197] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.731921][T15197] md/raid:md0: not clean -- starting background reconstruction
[  511.731949][T15197] md/raid:md0: not enough configured devices (1, minimum 2)
[  511.731959][T15197] md: pers->run() failed ...
executing program
[  511.844253][T15199] md: could not open device unknown-block(1,0).
[  511.844585][T15199] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  511.891508][T15199] md/raid:md0: not clean -- starting background reconstruction
[  511.891529][T15199] md/raid:md0: not enough configured devices (1, minimum 2)
[  511.891552][T15199] md: pers->run() failed ...
executing program
[  511.984213][T15201] md: could not open device unknown-block(1,0).
[  511.984539][T15201] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.081550][T15201] md/raid:md0: not clean -- starting background reconstruction
[  512.081578][T15201] md/raid:md0: not enough configured devices (1, minimum 2)
[  512.081588][T15201] md: pers->run() failed ...
executing program
[  512.174324][T15203] md: could not open device unknown-block(1,0).
[  512.174696][T15203] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.251464][T15203] md/raid:md0: not clean -- starting background reconstruction
[  512.251492][T15203] md/raid:md0: not enough configured devices (1, minimum 2)
[  512.251503][T15203] md: pers->run() failed ...
executing program
[  512.334260][T15205] md: could not open device unknown-block(1,0).
[  512.334594][T15205] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.381458][T15205] md/raid:md0: not clean -- starting background reconstruction
[  512.381484][T15205] md/raid:md0: not enough configured devices (1, minimum 2)
[  512.381494][T15205] md: pers->run() failed ...
executing program
[  512.484247][T15207] md: could not open device unknown-block(1,0).
[  512.484590][T15207] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.532071][T15207] md/raid:md0: not clean -- starting background reconstruction
[  512.532095][T15207] md/raid:md0: not enough configured devices (1, minimum 2)
[  512.532106][T15207] md: pers->run() failed ...
executing program
[  512.624538][T15209] md: could not open device unknown-block(1,0).
[  512.624878][T15209] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.672054][T15209] md/raid:md0: not clean -- starting background reconstruction
[  512.672080][T15209] md/raid:md0: not enough configured devices (1, minimum 2)
[  512.672088][T15209] md: pers->run() failed ...
executing program
[  512.764219][T15211] md: could not open device unknown-block(1,0).
[  512.764564][T15211] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.842035][T15211] md/raid:md0: not clean -- starting background reconstruction
[  512.842062][T15211] md/raid:md0: not enough configured devices (1, minimum 2)
[  512.842072][T15211] md: pers->run() failed ...
executing program
[  512.924214][T15213] md: could not open device unknown-block(1,0).
[  512.924547][T15213] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  512.991911][T15213] md/raid:md0: not clean -- starting background reconstruction
[  512.991936][T15213] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  512.991943][T15213] md: pers->run() failed ...
[  513.074297][T15215] md: could not open device unknown-block(1,0).
[  513.074679][T15215] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  513.121486][T15215] md/raid:md0: not clean -- starting background reconstruction
[  513.121510][T15215] md/raid:md0: not enough configured devices (1, minimum 2)
[  513.121530][T15215] md: pers->run() failed ...
executing program
[  513.214246][T15217] md: could not open device unknown-block(1,0).
[  513.214601][T15217] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  513.291982][T15217] md/raid:md0: not clean -- starting background reconstruction
[  513.292006][T15217] md/raid:md0: not enough configured devices (1, minimum 2)
[  513.292015][T15217] md: pers->run() failed ...
executing program
[  513.384217][T15219] md: could not open device unknown-block(1,0).
[  513.384553][T15219] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  513.451485][T15219] md/raid:md0: not clean -- starting background reconstruction
[  513.451509][T15219] md/raid:md0: not enough configured devices (1, minimum 2)
[  513.451520][T15219] md: pers->run() failed ...
executing program
[  513.534219][T15221] md: could not open device unknown-block(1,0).
[  513.534542][T15221] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  513.581875][T15221] md/raid:md0: not clean -- starting background reconstruction
[  513.581900][T15221] md/raid:md0: not enough configured devices (1, minimum 2)
[  513.581910][T15221] md: pers->run() failed ...
executing program
[  513.664213][T15223] md: could not open device unknown-block(1,0).
[  513.664541][T15223] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  513.721866][T15223] md/raid:md0: not clean -- starting background reconstruction
[  513.721890][T15223] md/raid:md0: not enough configured devices (1, minimum 2)
[  513.721898][T15223] md: pers->run() failed ...
executing program
[  513.814313][T15225] md: could not open device unknown-block(1,0).
[  513.814703][T15225] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  513.861548][T15225] md/raid:md0: not clean -- starting background reconstruction
[  513.861571][T15225] md/raid:md0: not enough configured devices (1, minimum 2)
[  513.861594][T15225] md: pers->run() failed ...
executing program
[  513.954287][T15227] md: could not open device unknown-block(1,0).
[  513.954687][T15227] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.002024][T15227] md/raid:md0: not clean -- starting background reconstruction
[  514.002048][T15227] md/raid:md0: not enough configured devices (1, minimum 2)
[  514.002071][T15227] md: pers->run() failed ...
executing program
[  514.084229][T15229] md: could not open device unknown-block(1,0).
[  514.084840][T15229] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.131473][T15229] md/raid:md0: not clean -- starting background reconstruction
[  514.131495][T15229] md/raid:md0: not enough configured devices (1, minimum 2)
[  514.131503][T15229] md: pers->run() failed ...
executing program
[  514.224264][T15232] md: could not open device unknown-block(1,0).
[  514.224619][T15232] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.301811][T15232] md/raid:md0: not clean -- starting background reconstruction
[  514.301835][T15232] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  514.301846][T15232] md: pers->run() failed ...
[  514.404222][T15234] md: could not open device unknown-block(1,0).
[  514.404562][T15234] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.451520][T15234] md/raid:md0: not clean -- starting background reconstruction
[  514.451544][T15234] md/raid:md0: not enough configured devices (1, minimum 2)
[  514.451555][T15234] md: pers->run() failed ...
executing program
[  514.544212][T15236] md: could not open device unknown-block(1,0).
[  514.544548][T15236] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.641501][T15236] md/raid:md0: not clean -- starting background reconstruction
[  514.641526][T15236] md/raid:md0: not enough configured devices (1, minimum 2)
[  514.641536][T15236] md: pers->run() failed ...
executing program
[  514.714256][T15238] md: could not open device unknown-block(1,0).
[  514.714637][T15238] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.761333][T15238] md/raid:md0: not clean -- starting background reconstruction
[  514.761357][T15238] md/raid:md0: not enough configured devices (1, minimum 2)
[  514.761367][T15238] md: pers->run() failed ...
executing program
[  514.844318][T15240] md: could not open device unknown-block(1,0).
[  514.844691][T15240] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  514.901472][T15240] md/raid:md0: not clean -- starting background reconstruction
[  514.901497][T15240] md/raid:md0: not enough configured devices (1, minimum 2)
[  514.901507][T15240] md: pers->run() failed ...
executing program
[  515.004302][T15242] md: could not open device unknown-block(1,0).
[  515.004691][T15242] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.061779][T15242] md/raid:md0: not clean -- starting background reconstruction
executing program
[  515.061804][T15242] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.061814][T15242] md: pers->run() failed ...
[  515.144253][T15244] md: could not open device unknown-block(1,0).
[  515.145082][T15244] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.191567][T15244] md/raid:md0: not clean -- starting background reconstruction
[  515.191590][T15244] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.191599][T15244] md: pers->run() failed ...
executing program
[  515.274305][T15246] md: could not open device unknown-block(1,0).
[  515.274666][T15246] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.321542][T15246] md/raid:md0: not clean -- starting background reconstruction
[  515.321565][T15246] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.321585][T15246] md: pers->run() failed ...
executing program
[  515.404328][T15248] md: could not open device unknown-block(1,0).
[  515.404720][T15248] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.451522][T15248] md/raid:md0: not clean -- starting background reconstruction
[  515.451547][T15248] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.451574][T15248] md: pers->run() failed ...
executing program
[  515.544273][T15250] md: could not open device unknown-block(1,0).
[  515.544614][T15250] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.591339][T15250] md/raid:md0: not clean -- starting background reconstruction
[  515.591364][T15250] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.591374][T15250] md: pers->run() failed ...
executing program
[  515.674218][T15252] md: could not open device unknown-block(1,0).
[  515.674562][T15252] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.741832][T15252] md/raid:md0: not clean -- starting background reconstruction
[  515.741858][T15252] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.741869][T15252] md: pers->run() failed ...
executing program
[  515.824227][T15254] md: could not open device unknown-block(1,0).
[  515.824558][T15254] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  515.901418][T15254] md/raid:md0: not clean -- starting background reconstruction
[  515.901446][T15254] md/raid:md0: not enough configured devices (1, minimum 2)
[  515.901457][T15254] md: pers->run() failed ...
executing program
[  516.004282][T15256] md: could not open device unknown-block(1,0).
[  516.004618][T15256] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.061979][T15256] md/raid:md0: not clean -- starting background reconstruction
[  516.062005][T15256] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.062013][T15256] md: pers->run() failed ...
executing program
[  516.144239][T15258] md: could not open device unknown-block(1,0).
[  516.144589][T15258] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.211482][T15258] md/raid:md0: not clean -- starting background reconstruction
[  516.211507][T15258] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.211518][T15258] md: pers->run() failed ...
executing program
[  516.304212][T15260] md: could not open device unknown-block(1,0).
[  516.304545][T15260] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.371795][T15260] md/raid:md0: not clean -- starting background reconstruction
[  516.371820][T15260] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.371829][T15260] md: pers->run() failed ...
executing program
[  516.454215][T15262] md: could not open device unknown-block(1,0).
[  516.454547][T15262] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.501417][T15262] md/raid:md0: not clean -- starting background reconstruction
executing program
[  516.501445][T15262] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.501455][T15262] md: pers->run() failed ...
[  516.574222][T15264] md: could not open device unknown-block(1,0).
[  516.574589][T15264] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.631430][T15264] md/raid:md0: not clean -- starting background reconstruction
[  516.631454][T15264] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.631465][T15264] md: pers->run() failed ...
executing program
[  516.714289][T15266] md: could not open device unknown-block(1,0).
[  516.714635][T15266] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.781900][T15266] md/raid:md0: not clean -- starting background reconstruction
[  516.781925][T15266] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.781935][T15266] md: pers->run() failed ...
executing program
[  516.864236][T15268] md: could not open device unknown-block(1,0).
[  516.864721][T15268] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  516.911439][T15268] md/raid:md0: not clean -- starting background reconstruction
[  516.911464][T15268] md/raid:md0: not enough configured devices (1, minimum 2)
[  516.911474][T15268] md: pers->run() failed ...
executing program
[  517.004540][T15271] md: could not open device unknown-block(1,0).
[  517.004862][T15271] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  517.081252][T15271] md/raid:md0: not clean -- starting background reconstruction
[  517.081277][T15271] md/raid:md0: not enough configured devices (1, minimum 2)
[  517.081288][T15271] md: pers->run() failed ...
executing program
[  517.174237][T15274] md: could not open device unknown-block(1,0).
[  517.174613][T15274] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  517.241668][T15274] md/raid:md0: not clean -- starting background reconstruction
executing program
[  517.241696][T15274] md/raid:md0: not enough configured devices (1, minimum 2)
[  517.241706][T15274] md: pers->run() failed ...
[  517.344822][T15277] md: could not open device unknown-block(1,0).
[  517.345189][T15277] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  517.411318][T15277] md/raid:md0: not clean -- starting background reconstruction
[  517.411342][T15277] md/raid:md0: not enough configured devices (1, minimum 2)
[  517.411350][T15277] md: pers->run() failed ...
executing program
[  517.504226][T15279] md: could not open device unknown-block(1,0).
[  517.504571][T15279] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  517.571532][T15279] md/raid:md0: not clean -- starting background reconstruction
[  517.571556][T15279] md/raid:md0: not enough configured devices (1, minimum 2)
[  517.571577][T15279] md: pers->run() failed ...
executing program
[  517.684330][T15281] md: could not open device unknown-block(1,0).
[  517.684735][T15281] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  517.742272][T15281] md/raid:md0: not clean -- starting background reconstruction
[  517.742297][T15281] md/raid:md0: not enough configured devices (1, minimum 2)
[  517.742307][T15281] md: pers->run() failed ...
executing program
[  517.844238][T15283] md: could not open device unknown-block(1,0).
[  517.844575][T15283] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  517.911521][T15283] md/raid:md0: not clean -- starting background reconstruction
[  517.911546][T15283] md/raid:md0: not enough configured devices (1, minimum 2)
[  517.911556][T15283] md: pers->run() failed ...
executing program
[  517.974279][T15285] md: could not open device unknown-block(1,0).
[  517.974664][T15285] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.031737][T15285] md/raid:md0: not clean -- starting background reconstruction
executing program
[  518.031762][T15285] md/raid:md0: not enough configured devices (1, minimum 2)
[  518.031772][T15285] md: pers->run() failed ...
[  518.134299][T15287] md: could not open device unknown-block(1,0).
[  518.135169][T15287] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.181522][T15287] md/raid:md0: not clean -- starting background reconstruction
[  518.181544][T15287] md/raid:md0: not enough configured devices (1, minimum 2)
[  518.181563][T15287] md: pers->run() failed ...
executing program
[  518.274302][T15289] md: could not open device unknown-block(1,0).
[  518.274708][T15289] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.321942][T15289] md/raid:md0: not clean -- starting background reconstruction
[  518.321966][T15289] md/raid:md0: not enough configured devices (1, minimum 2)
[  518.321977][T15289] md: pers->run() failed ...
executing program
[  518.424212][T15291] md: could not open device unknown-block(1,0).
[  518.424546][T15291] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.481509][T15291] md/raid:md0: not clean -- starting background reconstruction
[  518.481534][T15291] md/raid:md0: not enough configured devices (1, minimum 2)
[  518.481545][T15291] md: pers->run() failed ...
executing program
[  518.564255][T15293] md: could not open device unknown-block(1,0).
[  518.564608][T15293] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.611774][T15293] md/raid:md0: not clean -- starting background reconstruction
[  518.611797][T15293] md/raid:md0: not enough configured devices (1, minimum 2)
[  518.611808][T15293] md: pers->run() failed ...
executing program
[  518.694747][T15295] md: could not open device unknown-block(1,0).
[  518.695065][T15295] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.751432][T15295] md/raid:md0: not clean -- starting background reconstruction
executing program
[  518.751457][T15295] md/raid:md0: not enough configured devices (1, minimum 2)
[  518.751467][T15295] md: pers->run() failed ...
[  518.814212][T15297] md: could not open device unknown-block(1,0).
[  518.814565][T15297] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  518.861780][T15297] md/raid:md0: not clean -- starting background reconstruction
[  518.861806][T15297] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  518.861817][T15297] md: pers->run() failed ...
[  518.954320][T15299] md: could not open device unknown-block(1,0).
[  518.954704][T15299] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.001570][T15299] md/raid:md0: not clean -- starting background reconstruction
[  519.001595][T15299] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.001605][T15299] md: pers->run() failed ...
executing program
[  519.084247][T15301] md: could not open device unknown-block(1,0).
[  519.084594][T15301] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.151369][T15301] md/raid:md0: not clean -- starting background reconstruction
[  519.151392][T15301] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.151403][T15301] md: pers->run() failed ...
executing program
[  519.244224][T15303] md: could not open device unknown-block(1,0).
[  519.244563][T15303] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.322020][T15303] md/raid:md0: not clean -- starting background reconstruction
[  519.322043][T15303] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.322052][T15303] md: pers->run() failed ...
executing program
[  519.404218][T15305] md: could not open device unknown-block(1,0).
[  519.404567][T15305] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.451490][T15305] md/raid:md0: not clean -- starting background reconstruction
[  519.451514][T15305] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.451524][T15305] md: pers->run() failed ...
executing program
[  519.524290][T15307] md: could not open device unknown-block(1,0).
[  519.524664][T15307] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.601748][T15307] md/raid:md0: not clean -- starting background reconstruction
executing program
[  519.601773][T15307] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.601783][T15307] md: pers->run() failed ...
[  519.674343][T15309] md: could not open device unknown-block(1,0).
[  519.674693][T15309] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.731963][T15309] md/raid:md0: not clean -- starting background reconstruction
[  519.731988][T15309] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.731998][T15309] md: pers->run() failed ...
executing program
[  519.814492][T15311] md: could not open device unknown-block(1,0).
[  519.814817][T15311] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  519.881418][T15311] md/raid:md0: not clean -- starting background reconstruction
[  519.881444][T15311] md/raid:md0: not enough configured devices (1, minimum 2)
[  519.881453][T15311] md: pers->run() failed ...
executing program
[  519.964240][T15313] md: could not open device unknown-block(1,0).
[  519.964617][T15313] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.041508][T15313] md/raid:md0: not clean -- starting background reconstruction
[  520.041531][T15313] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.041538][T15313] md: pers->run() failed ...
executing program
[  520.124297][T15315] md: could not open device unknown-block(1,0).
[  520.124700][T15315] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.171474][T15315] md/raid:md0: not clean -- starting background reconstruction
[  520.171497][T15315] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.171507][T15315] md: pers->run() failed ...
executing program
[  520.254219][T15317] md: could not open device unknown-block(1,0).
[  520.254559][T15317] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.321515][T15317] md/raid:md0: not clean -- starting background reconstruction
[  520.321539][T15317] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.321548][T15317] md: pers->run() failed ...
executing program
[  520.394332][T15319] md: could not open device unknown-block(1,0).
[  520.394888][T15319] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.451474][T15319] md/raid:md0: not clean -- starting background reconstruction
[  520.451501][T15319] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.451511][T15319] md: pers->run() failed ...
executing program
[  520.534270][T15322] md: could not open device unknown-block(1,0).
[  520.534655][T15322] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.601455][T15322] md/raid:md0: not clean -- starting background reconstruction
[  520.601480][T15322] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.601490][T15322] md: pers->run() failed ...
executing program
[  520.684243][T15324] md: could not open device unknown-block(1,0).
[  520.684602][T15324] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.741433][T15324] md/raid:md0: not clean -- starting background reconstruction
[  520.741458][T15324] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.741469][T15324] md: pers->run() failed ...
executing program
[  520.824216][T15326] md: could not open device unknown-block(1,0).
[  520.824555][T15326] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  520.881568][T15326] md/raid:md0: not clean -- starting background reconstruction
[  520.881594][T15326] md/raid:md0: not enough configured devices (1, minimum 2)
[  520.881605][T15326] md: pers->run() failed ...
executing program
[  520.974293][T15328] md: could not open device unknown-block(1,0).
[  520.974694][T15328] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.021363][T15328] md/raid:md0: not clean -- starting background reconstruction
[  521.021386][T15328] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  521.021396][T15328] md: pers->run() failed ...
[  521.094319][T15330] md: could not open device unknown-block(1,0).
[  521.094719][T15330] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.152086][T15330] md/raid:md0: not clean -- starting background reconstruction
[  521.152110][T15330] md/raid:md0: not enough configured devices (1, minimum 2)
[  521.152120][T15330] md: pers->run() failed ...
executing program
[  521.264253][T15332] md: could not open device unknown-block(1,0).
[  521.264620][T15332] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.321335][T15332] md/raid:md0: not clean -- starting background reconstruction
[  521.321359][T15332] md/raid:md0: not enough configured devices (1, minimum 2)
[  521.321378][T15332] md: pers->run() failed ...
executing program
[  521.404208][T15334] md: could not open device unknown-block(1,0).
[  521.404553][T15334] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.451828][T15334] md/raid:md0: not clean -- starting background reconstruction
[  521.451851][T15334] md/raid:md0: not enough configured devices (1, minimum 2)
[  521.451862][T15334] md: pers->run() failed ...
executing program
[  521.554217][T15336] md: could not open device unknown-block(1,0).
[  521.554542][T15336] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.601339][T15336] md/raid:md0: not clean -- starting background reconstruction
[  521.601363][T15336] md/raid:md0: not enough configured devices (1, minimum 2)
[  521.601373][T15336] md: pers->run() failed ...
executing program
[  521.704208][T15338] md: could not open device unknown-block(1,0).
[  521.704528][T15338] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.791495][T15338] md/raid:md0: not clean -- starting background reconstruction
[  521.791520][T15338] md/raid:md0: not enough configured devices (1, minimum 2)
[  521.791529][T15338] md: pers->run() failed ...
executing program
[  521.914237][T15340] md: could not open device unknown-block(1,0).
[  521.914566][T15340] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  521.961310][T15340] md/raid:md0: not clean -- starting background reconstruction
[  521.961335][T15340] md/raid:md0: not enough configured devices (1, minimum 2)
[  521.961345][T15340] md: pers->run() failed ...
executing program
[  522.054302][T15342] md: could not open device unknown-block(1,0).
[  522.054689][T15342] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.101926][T15342] md/raid:md0: not clean -- starting background reconstruction
[  522.101949][T15342] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.101959][T15342] md: pers->run() failed ...
executing program
[  522.164267][T15344] md: could not open device unknown-block(1,0).
[  522.164637][T15344] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.211432][T15344] md/raid:md0: not clean -- starting background reconstruction
[  522.211463][T15344] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.211473][T15344] md: pers->run() failed ...
executing program
[  522.294289][T15346] md: could not open device unknown-block(1,0).
[  522.294663][T15346] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.341501][T15346] md/raid:md0: not clean -- starting background reconstruction
[  522.341523][T15346] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.341546][T15346] md: pers->run() failed ...
executing program
[  522.434311][T15348] md: could not open device unknown-block(1,0).
[  522.435093][T15348] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.481285][T15348] md/raid:md0: not clean -- starting background reconstruction
[  522.481310][T15348] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.481321][T15348] md: pers->run() failed ...
executing program
[  522.564333][T15350] md: could not open device unknown-block(1,0).
[  522.564712][T15350] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.611843][T15350] md/raid:md0: not clean -- starting background reconstruction
executing program
[  522.611868][T15350] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.611878][T15350] md: pers->run() failed ...
[  522.684316][T15352] md: could not open device unknown-block(1,0).
[  522.684711][T15352] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.742629][T15352] md/raid:md0: not clean -- starting background reconstruction
[  522.742653][T15352] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.742662][T15352] md: pers->run() failed ...
executing program
[  522.824315][T15354] md: could not open device unknown-block(1,0).
[  522.824710][T15354] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  522.871584][T15354] md/raid:md0: not clean -- starting background reconstruction
[  522.871608][T15354] md/raid:md0: not enough configured devices (1, minimum 2)
[  522.871616][T15354] md: pers->run() failed ...
executing program
[  522.954216][T15356] md: could not open device unknown-block(1,0).
[  522.954542][T15356] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.001885][T15356] md/raid:md0: not clean -- starting background reconstruction
[  523.001909][T15356] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.001920][T15356] md: pers->run() failed ...
executing program
[  523.094213][T15358] md: could not open device unknown-block(1,0).
[  523.094533][T15358] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.171421][T15358] md/raid:md0: not clean -- starting background reconstruction
[  523.171451][T15358] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.171462][T15358] md: pers->run() failed ...
executing program
[  523.254243][T15360] md: could not open device unknown-block(1,0).
[  523.254577][T15360] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.311470][T15360] md/raid:md0: not clean -- starting background reconstruction
executing program
[  523.311494][T15360] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.311505][T15360] md: pers->run() failed ...
[  523.374319][T15362] md: could not open device unknown-block(1,0).
[  523.375056][T15362] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.441553][T15362] md/raid:md0: not clean -- starting background reconstruction
[  523.441577][T15362] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.441588][T15362] md: pers->run() failed ...
executing program
[  523.534263][T15364] md: could not open device unknown-block(1,0).
[  523.534612][T15364] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.591507][T15364] md/raid:md0: not clean -- starting background reconstruction
[  523.591530][T15364] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.591552][T15364] md: pers->run() failed ...
executing program
[  523.674251][T15366] md: could not open device unknown-block(1,0).
[  523.674582][T15366] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.721816][T15366] md/raid:md0: not clean -- starting background reconstruction
[  523.721840][T15366] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.721851][T15366] md: pers->run() failed ...
executing program
[  523.804247][T15368] md: could not open device unknown-block(1,0).
[  523.804578][T15368] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.861504][T15368] md/raid:md0: not clean -- starting background reconstruction
[  523.861529][T15368] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.861539][T15368] md: pers->run() failed ...
executing program
[  523.944329][T15370] md: could not open device unknown-block(1,0).
[  523.944727][T15370] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  523.991418][T15370] md/raid:md0: not clean -- starting background reconstruction
executing program
[  523.991445][T15370] md/raid:md0: not enough configured devices (1, minimum 2)
[  523.991454][T15370] md: pers->run() failed ...
[  524.054337][T15372] md: could not open device unknown-block(1,0).
[  524.054749][T15372] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.101354][T15372] md/raid:md0: not clean -- starting background reconstruction
[  524.101376][T15372] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.101385][T15372] md: pers->run() failed ...
executing program
[  524.204247][T15374] md: could not open device unknown-block(1,0).
[  524.204643][T15374] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.251963][T15374] md/raid:md0: not clean -- starting background reconstruction
[  524.251989][T15374] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.252000][T15374] md: pers->run() failed ...
executing program
[  524.344591][T15376] md: could not open device unknown-block(1,0).
[  524.344934][T15376] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.411555][T15376] md/raid:md0: not clean -- starting background reconstruction
[  524.411582][T15376] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.411593][T15376] md: pers->run() failed ...
executing program
[  524.494220][T15378] md: could not open device unknown-block(1,0).
[  524.494545][T15378] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.551381][T15378] md/raid:md0: not clean -- starting background reconstruction
[  524.551406][T15378] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.551416][T15378] md: pers->run() failed ...
executing program
[  524.634217][T15380] md: could not open device unknown-block(1,0).
[  524.634544][T15380] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.681464][T15380] md/raid:md0: not clean -- starting background reconstruction
[  524.681490][T15380] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.681500][T15380] md: pers->run() failed ...
executing program
[  524.774212][T15382] md: could not open device unknown-block(1,0).
[  524.774544][T15382] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.851353][T15382] md/raid:md0: not clean -- starting background reconstruction
[  524.851378][T15382] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.851389][T15382] md: pers->run() failed ...
executing program
[  524.934289][T15384] md: could not open device unknown-block(1,0).
[  524.934657][T15384] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  524.982025][T15384] md/raid:md0: not clean -- starting background reconstruction
[  524.982052][T15384] md/raid:md0: not enough configured devices (1, minimum 2)
[  524.982060][T15384] md: pers->run() failed ...
executing program
[  525.064321][T15386] md: could not open device unknown-block(1,0).
[  525.064710][T15386] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.111500][T15386] md/raid:md0: not clean -- starting background reconstruction
[  525.111523][T15386] md/raid:md0: not enough configured devices (1, minimum 2)
[  525.111546][T15386] md: pers->run() failed ...
executing program
[  525.194227][T15388] md: could not open device unknown-block(1,0).
[  525.194555][T15388] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.241507][T15388] md/raid:md0: not clean -- starting background reconstruction
[  525.241535][T15388] md/raid:md0: not enough configured devices (1, minimum 2)
[  525.241546][T15388] md: pers->run() failed ...
executing program
[  525.334215][T15390] md: could not open device unknown-block(1,0).
[  525.334549][T15390] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.381814][T15390] md/raid:md0: not clean -- starting background reconstruction
[  525.381839][T15390] md/raid:md0: not enough configured devices (1, minimum 2)
[  525.381850][T15390] md: pers->run() failed ...
executing program
[  525.454240][T15392] md: could not open device unknown-block(1,0).
[  525.454585][T15392] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.511536][T15392] md/raid:md0: not clean -- starting background reconstruction
[  525.511562][T15392] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  525.511572][T15392] md: pers->run() failed ...
[  525.584218][T15394] md: could not open device unknown-block(1,0).
[  525.584567][T15394] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.631496][T15394] md/raid:md0: not clean -- starting background reconstruction
[  525.631519][T15394] md/raid:md0: not enough configured devices (1, minimum 2)
[  525.631530][T15394] md: pers->run() failed ...
executing program
[  525.734211][T15396] md: could not open device unknown-block(1,0).
[  525.734543][T15396] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.791430][T15396] md/raid:md0: not clean -- starting background reconstruction
[  525.791459][T15396] md/raid:md0: not enough configured devices (1, minimum 2)
[  525.791469][T15396] md: pers->run() failed ...
executing program
[  525.884216][T15398] md: could not open device unknown-block(1,0).
[  525.884554][T15398] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  525.951546][T15398] md/raid:md0: not clean -- starting background reconstruction
[  525.951571][T15398] md/raid:md0: not enough configured devices (1, minimum 2)
[  525.951582][T15398] md: pers->run() failed ...
executing program
[  526.054229][T15400] md: could not open device unknown-block(1,0).
[  526.054559][T15400] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  526.101361][T15400] md/raid:md0: not clean -- starting background reconstruction
[  526.101385][T15400] md/raid:md0: not enough configured devices (1, minimum 2)
[  526.101393][T15400] md: pers->run() failed ...
executing program
[  526.184333][T15402] md: could not open device unknown-block(1,0).
[  526.184739][T15402] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  526.232027][T15402] md/raid:md0: not clean -- starting background reconstruction
[  526.232054][T15402] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  526.232064][T15402] md: pers->run() failed ...
[  526.334285][T15404] md: could not open device unknown-block(1,0).
[  526.334658][T15404] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  526.401377][T15404] md/raid:md0: not clean -- starting background reconstruction
[  526.401402][T15404] md/raid:md0: not enough configured devices (1, minimum 2)
[  526.401412][T15404] md: pers->run() failed ...
executing program
[  526.504210][T15406] md: could not open device unknown-block(1,0).
[  526.504556][T15406] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  526.551836][T15406] md/raid:md0: not clean -- starting background reconstruction
[  526.551861][T15406] md/raid:md0: not enough configured devices (1, minimum 2)
[  526.551872][T15406] md: pers->run() failed ...
executing program
[  526.644662][T15408] md: could not open device unknown-block(1,0).
[  526.644997][T15408] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  526.691289][T15408] md/raid:md0: not clean -- starting background reconstruction
[  526.691313][T15408] md/raid:md0: not enough configured devices (1, minimum 2)
[  526.691323][T15408] md: pers->run() failed ...
executing program
[  526.784224][T15410] md: could not open device unknown-block(1,0).
[  526.784546][T15410] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  526.841887][T15410] md/raid:md0: not clean -- starting background reconstruction
[  526.841910][T15410] md/raid:md0: not enough configured devices (1, minimum 2)
[  526.841921][T15410] md: pers->run() failed ...
executing program
[  526.954227][T15412] md: could not open device unknown-block(1,0).
[  526.954583][T15412] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.001546][T15412] md/raid:md0: not clean -- starting background reconstruction
executing program
[  527.001573][T15412] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.001581][T15412] md: pers->run() failed ...
[  527.064362][T15414] md: could not open device unknown-block(1,0).
[  527.064715][T15414] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.131838][T15414] md/raid:md0: not clean -- starting background reconstruction
executing program
[  527.131865][T15414] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.131876][T15414] md: pers->run() failed ...
[  527.214254][T15416] md: could not open device unknown-block(1,0).
[  527.214595][T15416] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.261497][T15416] md/raid:md0: not clean -- starting background reconstruction
[  527.261519][T15416] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.261540][T15416] md: pers->run() failed ...
executing program
[  527.354743][T15418] md: could not open device unknown-block(1,0).
[  527.355065][T15418] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.451880][T15418] md/raid:md0: not clean -- starting background reconstruction
[  527.451904][T15418] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.451914][T15418] md: pers->run() failed ...
executing program
[  527.524288][T15420] md: could not open device unknown-block(1,0).
[  527.524670][T15420] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.591433][T15420] md/raid:md0: not clean -- starting background reconstruction
[  527.591459][T15420] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.591470][T15420] md: pers->run() failed ...
executing program
[  527.694296][T15422] md: could not open device unknown-block(1,0).
[  527.694684][T15422] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.752142][T15422] md/raid:md0: not clean -- starting background reconstruction
executing program
[  527.752164][T15422] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.752184][T15422] md: pers->run() failed ...
[  527.854278][T15424] md: could not open device unknown-block(1,0).
[  527.854647][T15424] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  527.901706][T15424] md/raid:md0: not clean -- starting background reconstruction
[  527.901729][T15424] md/raid:md0: not enough configured devices (1, minimum 2)
[  527.901739][T15424] md: pers->run() failed ...
executing program
[  528.024214][T15426] md: could not open device unknown-block(1,0).
[  528.024563][T15426] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.081539][T15426] md/raid:md0: not clean -- starting background reconstruction
[  528.081564][T15426] md/raid:md0: not enough configured devices (1, minimum 2)
[  528.081574][T15426] md: pers->run() failed ...
executing program
[  528.154286][T15428] md: could not open device unknown-block(1,0).
[  528.154644][T15428] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.201475][T15428] md/raid:md0: not clean -- starting background reconstruction
[  528.201500][T15428] md/raid:md0: not enough configured devices (1, minimum 2)
[  528.201510][T15428] md: pers->run() failed ...
executing program
[  528.284212][T15430] md: could not open device unknown-block(1,0).
[  528.284538][T15430] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.341980][T15430] md/raid:md0: not clean -- starting background reconstruction
[  528.342005][T15430] md/raid:md0: not enough configured devices (1, minimum 2)
[  528.342016][T15430] md: pers->run() failed ...
executing program
[  528.424363][T15432] md: could not open device unknown-block(1,0).
[  528.424773][T15432] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.471466][T15432] md/raid:md0: not clean -- starting background reconstruction
[  528.471490][T15432] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  528.471500][T15432] md: pers->run() failed ...
[  528.544336][T15434] md: could not open device unknown-block(1,0).
[  528.545892][T15434] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.591796][T15434] md/raid:md0: not clean -- starting background reconstruction
[  528.591821][T15434] md/raid:md0: not enough configured devices (1, minimum 2)
[  528.591831][T15434] md: pers->run() failed ...
executing program
[  528.694221][T15436] md: could not open device unknown-block(1,0).
[  528.694561][T15436] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.742072][T15436] md/raid:md0: not clean -- starting background reconstruction
[  528.742096][T15436] md/raid:md0: not enough configured devices (1, minimum 2)
[  528.742106][T15436] md: pers->run() failed ...
executing program
[  528.834301][T15438] md: could not open device unknown-block(1,0).
[  528.834683][T15438] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  528.881491][T15438] md/raid:md0: not clean -- starting background reconstruction
[  528.881517][T15438] md/raid:md0: not enough configured devices (1, minimum 2)
[  528.881527][T15438] md: pers->run() failed ...
executing program
[  528.954286][T15440] md: could not open device unknown-block(1,0).
[  528.954673][T15440] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.011961][T15440] md/raid:md0: not clean -- starting background reconstruction
[  529.011986][T15440] md/raid:md0: not enough configured devices (1, minimum 2)
[  529.011996][T15440] md: pers->run() failed ...
executing program
[  529.094244][T15442] md: could not open device unknown-block(1,0).
[  529.094631][T15442] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.141471][T15442] md/raid:md0: not clean -- starting background reconstruction
[  529.141496][T15442] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  529.141507][T15442] md: pers->run() failed ...
[  529.204292][T15444] md: could not open device unknown-block(1,0).
[  529.204647][T15444] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.252406][T15444] md/raid:md0: not clean -- starting background reconstruction
[  529.252432][T15444] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  529.252446][T15444] md: pers->run() failed ...
[  529.324227][T15446] md: could not open device unknown-block(1,0).
[  529.324550][T15446] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.381469][T15446] md/raid:md0: not clean -- starting background reconstruction
[  529.381496][T15446] md/raid:md0: not enough configured devices (1, minimum 2)
[  529.381506][T15446] md: pers->run() failed ...
executing program
[  529.474329][T15448] md: could not open device unknown-block(1,0).
[  529.474755][T15448] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.521447][T15448] md/raid:md0: not clean -- starting background reconstruction
[  529.521472][T15448] md/raid:md0: not enough configured devices (1, minimum 2)
[  529.521483][T15448] md: pers->run() failed ...
executing program
[  529.604232][T15450] md: could not open device unknown-block(1,0).
[  529.604567][T15450] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.681607][T15450] md/raid:md0: not clean -- starting background reconstruction
[  529.681633][T15450] md/raid:md0: not enough configured devices (1, minimum 2)
[  529.681644][T15450] md: pers->run() failed ...
executing program
[  529.764233][T15452] md: could not open device unknown-block(1,0).
[  529.764922][T15452] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.811334][T15452] md/raid:md0: not clean -- starting background reconstruction
[  529.811358][T15452] md/raid:md0: not enough configured devices (1, minimum 2)
[  529.811368][T15452] md: pers->run() failed ...
executing program
[  529.894367][T15454] md: could not open device unknown-block(1,0).
[  529.894751][T15454] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  529.941503][T15454] md/raid:md0: not clean -- starting background reconstruction
executing program
[  529.941525][T15454] md/raid:md0: not enough configured devices (1, minimum 2)
[  529.941534][T15454] md: pers->run() failed ...
[  530.014316][T15456] md: could not open device unknown-block(1,0).
[  530.014719][T15456] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  530.071457][T15456] md/raid:md0: not clean -- starting background reconstruction
[  530.071481][T15456] md/raid:md0: not enough configured devices (1, minimum 2)
[  530.071491][T15456] md: pers->run() failed ...
executing program
[  530.154259][T15458] md: could not open device unknown-block(1,0).
[  530.154584][T15458] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  530.211456][T15458] md/raid:md0: not clean -- starting background reconstruction
[  530.211481][T15458] md/raid:md0: not enough configured devices (1, minimum 2)
[  530.211491][T15458] md: pers->run() failed ...
executing program
[  530.304279][T15460] md: could not open device unknown-block(1,0).
[  530.304639][T15460] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  530.361461][T15460] md/raid:md0: not clean -- starting background reconstruction
[  530.361487][T15460] md/raid:md0: not enough configured devices (1, minimum 2)
[  530.361497][T15460] md: pers->run() failed ...
executing program
[  530.474322][T15462] md: could not open device unknown-block(1,0).
[  530.474747][T15462] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  530.531512][T15462] md/raid:md0: not clean -- starting background reconstruction
[  530.531534][T15462] md/raid:md0: not enough configured devices (1, minimum 2)
[  530.531557][T15462] md: pers->run() failed ...
executing program
[  530.634254][T15464] md: could not open device unknown-block(1,0).
[  530.634603][T15464] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  530.691846][T15464] md/raid:md0: not clean -- starting background reconstruction
[  530.691873][T15464] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  530.691881][T15464] md: pers->run() failed ...
[  530.804265][T15466] md: could not open device unknown-block(1,0).
[  530.804641][T15466] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  530.851416][T15466] md/raid:md0: not clean -- starting background reconstruction
[  530.851441][T15466] md/raid:md0: not enough configured devices (1, minimum 2)
[  530.851448][T15466] md: pers->run() failed ...
executing program
[  530.944210][T15468] md: could not open device unknown-block(1,0).
[  530.944544][T15468] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.012244][T15468] md/raid:md0: not clean -- starting background reconstruction
[  531.012269][T15468] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.012279][T15468] md: pers->run() failed ...
executing program
[  531.094211][T15470] md: could not open device unknown-block(1,0).
[  531.094559][T15470] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.141361][T15470] md/raid:md0: not clean -- starting background reconstruction
[  531.141386][T15470] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.141396][T15470] md: pers->run() failed ...
executing program
[  531.224232][T15472] md: could not open device unknown-block(1,0).
[  531.224572][T15472] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.292103][T15472] md/raid:md0: not clean -- starting background reconstruction
[  531.292126][T15472] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.292135][T15472] md: pers->run() failed ...
executing program
[  531.374223][T15474] md: could not open device unknown-block(1,0).
[  531.374571][T15474] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.421466][T15474] md/raid:md0: not clean -- starting background reconstruction
[  531.421491][T15474] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  531.421501][T15474] md: pers->run() failed ...
[  531.484725][T15476] md: could not open device unknown-block(1,0).
[  531.485070][T15476] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.531896][T15476] md/raid:md0: not clean -- starting background reconstruction
[  531.531920][T15476] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.531931][T15476] md: pers->run() failed ...
executing program
[  531.654249][T15478] md: could not open device unknown-block(1,0).
[  531.654597][T15478] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.701515][T15478] md/raid:md0: not clean -- starting background reconstruction
[  531.701540][T15478] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.701551][T15478] md: pers->run() failed ...
executing program
[  531.784208][T15480] md: could not open device unknown-block(1,0).
[  531.784534][T15480] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.831536][T15480] md/raid:md0: not clean -- starting background reconstruction
[  531.831559][T15480] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.831567][T15480] md: pers->run() failed ...
executing program
[  531.904281][T15482] md: could not open device unknown-block(1,0).
[  531.904634][T15482] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  531.971971][T15482] md/raid:md0: not clean -- starting background reconstruction
[  531.971996][T15482] md/raid:md0: not enough configured devices (1, minimum 2)
[  531.972019][T15482] md: pers->run() failed ...
executing program
[  532.054319][T15484] md: could not open device unknown-block(1,0).
[  532.054728][T15484] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.101516][T15484] md/raid:md0: not clean -- starting background reconstruction
[  532.101540][T15484] md/raid:md0: not enough configured devices (1, minimum 2)
[  532.101547][T15484] md: pers->run() failed ...
executing program
[  532.184258][T15486] md: could not open device unknown-block(1,0).
[  532.184589][T15486] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.231532][T15486] md/raid:md0: not clean -- starting background reconstruction
[  532.231557][T15486] md/raid:md0: not enough configured devices (1, minimum 2)
[  532.231567][T15486] md: pers->run() failed ...
executing program
[  532.324210][T15488] md: could not open device unknown-block(1,0).
[  532.324536][T15488] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.391439][T15488] md/raid:md0: not clean -- starting background reconstruction
[  532.391465][T15488] md/raid:md0: not enough configured devices (1, minimum 2)
[  532.391475][T15488] md: pers->run() failed ...
executing program
[  532.474351][T15490] md: could not open device unknown-block(1,0).
[  532.474744][T15490] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.531433][T15490] md/raid:md0: not clean -- starting background reconstruction
[  532.531461][T15490] md/raid:md0: not enough configured devices (1, minimum 2)
[  532.531471][T15490] md: pers->run() failed ...
executing program
[  532.614618][T15492] md: could not open device unknown-block(1,0).
[  532.614933][T15492] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.671532][T15492] md/raid:md0: not clean -- starting background reconstruction
[  532.671557][T15492] md/raid:md0: not enough configured devices (1, minimum 2)
[  532.671568][T15492] md: pers->run() failed ...
executing program
[  532.764207][T15494] md: could not open device unknown-block(1,0).
[  532.764545][T15494] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.852265][T15494] md/raid:md0: not clean -- starting background reconstruction
[  532.852291][T15494] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  532.852301][T15494] md: pers->run() failed ...
[  532.934284][T15496] md: could not open device unknown-block(1,0).
[  532.934635][T15496] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  532.991504][T15496] md/raid:md0: not clean -- starting background reconstruction
[  532.991531][T15496] md/raid:md0: not enough configured devices (1, minimum 2)
[  532.991542][T15496] md: pers->run() failed ...
executing program
[  533.084230][T15498] md: could not open device unknown-block(1,0).
[  533.084561][T15498] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  533.152020][T15498] md/raid:md0: not clean -- starting background reconstruction
[  533.152048][T15498] md/raid:md0: not enough configured devices (1, minimum 2)
[  533.152058][T15498] md: pers->run() failed ...
executing program
[  533.234211][T15500] md: could not open device unknown-block(1,0).
[  533.234561][T15500] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  533.301441][T15500] md/raid:md0: not clean -- starting background reconstruction
[  533.301464][T15500] md/raid:md0: not enough configured devices (1, minimum 2)
[  533.301472][T15500] md: pers->run() failed ...
executing program
[  533.374280][T15502] md: could not open device unknown-block(1,0).
[  533.374669][T15502] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  533.441453][T15502] md/raid:md0: not clean -- starting background reconstruction
[  533.441478][T15502] md/raid:md0: not enough configured devices (1, minimum 2)
[  533.441488][T15502] md: pers->run() failed ...
executing program
[  533.534225][T15504] md: could not open device unknown-block(1,0).
[  533.534579][T15504] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  533.581485][T15504] md/raid:md0: not clean -- starting background reconstruction
[  533.581509][T15504] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  533.581519][T15504] md: pers->run() failed ...
[  533.684266][T15506] md: could not open device unknown-block(1,0).
[  533.684649][T15506] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  533.741460][T15506] md/raid:md0: not clean -- starting background reconstruction
[  533.741484][T15506] md/raid:md0: not enough configured devices (1, minimum 2)
[  533.741493][T15506] md: pers->run() failed ...
executing program
[  533.824241][T15508] md: could not open device unknown-block(1,0).
[  533.824596][T15508] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  533.881605][T15508] md/raid:md0: not clean -- starting background reconstruction
[  533.881628][T15508] md/raid:md0: not enough configured devices (1, minimum 2)
[  533.881639][T15508] md: pers->run() failed ...
executing program
[  533.964216][T15510] md: could not open device unknown-block(1,0).
[  533.964581][T15510] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.021405][T15510] md/raid:md0: not clean -- starting background reconstruction
[  534.021432][T15510] md/raid:md0: not enough configured devices (1, minimum 2)
[  534.021441][T15510] md: pers->run() failed ...
executing program
[  534.114219][T15512] md: could not open device unknown-block(1,0).
[  534.114573][T15512] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.162029][T15512] md/raid:md0: not clean -- starting background reconstruction
[  534.162052][T15512] md/raid:md0: not enough configured devices (1, minimum 2)
[  534.162063][T15512] md: pers->run() failed ...
executing program
[  534.254212][T15514] md: could not open device unknown-block(1,0).
[  534.254552][T15514] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.321477][T15514] md/raid:md0: not clean -- starting background reconstruction
[  534.321500][T15514] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  534.321507][T15514] md: pers->run() failed ...
[  534.414812][T15516] md: could not open device unknown-block(1,0).
[  534.415142][T15516] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.471815][T15516] md/raid:md0: not clean -- starting background reconstruction
[  534.471840][T15516] md/raid:md0: not enough configured devices (1, minimum 2)
[  534.471850][T15516] md: pers->run() failed ...
executing program
[  534.544212][T15518] md: could not open device unknown-block(1,0).
[  534.544564][T15518] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.611532][T15518] md/raid:md0: not clean -- starting background reconstruction
[  534.611556][T15518] md/raid:md0: not enough configured devices (1, minimum 2)
[  534.611567][T15518] md: pers->run() failed ...
executing program
[  534.694220][T15520] md: could not open device unknown-block(1,0).
[  534.694544][T15520] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.741900][T15520] md/raid:md0: not clean -- starting background reconstruction
[  534.741926][T15520] md/raid:md0: not enough configured devices (1, minimum 2)
[  534.741936][T15520] md: pers->run() failed ...
executing program
[  534.824210][T15522] md: could not open device unknown-block(1,0).
[  534.824541][T15522] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  534.871384][T15522] md/raid:md0: not clean -- starting background reconstruction
[  534.871408][T15522] md/raid:md0: not enough configured devices (1, minimum 2)
[  534.871419][T15522] md: pers->run() failed ...
executing program
[  534.954224][T15524] md: could not open device unknown-block(1,0).
[  534.954585][T15524] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.001926][T15524] md/raid:md0: not clean -- starting background reconstruction
[  535.001950][T15524] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  535.001960][T15524] md: pers->run() failed ...
[  535.104279][T15526] md: could not open device unknown-block(1,0).
[  535.104641][T15526] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.151414][T15526] md/raid:md0: not clean -- starting background reconstruction
[  535.151441][T15526] md/raid:md0: not enough configured devices (1, minimum 2)
[  535.151451][T15526] md: pers->run() failed ...
executing program
[  535.254222][T15528] md: could not open device unknown-block(1,0).
[  535.254566][T15528] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.301470][T15528] md/raid:md0: not clean -- starting background reconstruction
[  535.301493][T15528] md/raid:md0: not enough configured devices (1, minimum 2)
[  535.301504][T15528] md: pers->run() failed ...
executing program
[  535.384208][T15530] md: could not open device unknown-block(1,0).
[  535.384560][T15530] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.472363][T15530] md/raid:md0: not clean -- starting background reconstruction
[  535.472387][T15530] md/raid:md0: not enough configured devices (1, minimum 2)
[  535.472395][T15530] md: pers->run() failed ...
executing program
[  535.574218][T15532] md: could not open device unknown-block(1,0).
[  535.574550][T15532] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.641433][T15532] md/raid:md0: not clean -- starting background reconstruction
[  535.641461][T15532] md/raid:md0: not enough configured devices (1, minimum 2)
[  535.641472][T15532] md: pers->run() failed ...
executing program
[  535.724250][T15534] md: could not open device unknown-block(1,0).
[  535.724575][T15534] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.811900][T15534] md/raid:md0: not clean -- starting background reconstruction
[  535.811922][T15534] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  535.811930][T15534] md: pers->run() failed ...
[  535.914250][T15536] md: could not open device unknown-block(1,0).
[  535.914593][T15536] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  535.981510][T15536] md/raid:md0: not clean -- starting background reconstruction
[  535.981534][T15536] md/raid:md0: not enough configured devices (1, minimum 2)
[  535.981544][T15536] md: pers->run() failed ...
executing program
[  536.064227][T15538] md: could not open device unknown-block(1,0).
[  536.064563][T15538] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  536.121382][T15538] md/raid:md0: not clean -- starting background reconstruction
[  536.121406][T15538] md/raid:md0: not enough configured devices (1, minimum 2)
[  536.121413][T15538] md: pers->run() failed ...
executing program
[  536.204228][T15540] md: could not open device unknown-block(1,0).
[  536.204581][T15540] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  536.251357][T15540] md/raid:md0: not clean -- starting background reconstruction
[  536.251380][T15540] md/raid:md0: not enough configured devices (1, minimum 2)
[  536.251389][T15540] md: pers->run() failed ...
executing program
[  536.354223][T15542] md: could not open device unknown-block(1,0).
[  536.354577][T15542] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  536.431549][T15542] md/raid:md0: not clean -- starting background reconstruction
[  536.431573][T15542] md/raid:md0: not enough configured devices (1, minimum 2)
[  536.431581][T15542] md: pers->run() failed ...
executing program
[  536.524294][T15544] md: could not open device unknown-block(1,0).
[  536.524683][T15544] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  536.581480][T15544] md/raid:md0: not clean -- starting background reconstruction
[  536.581501][T15544] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  536.581508][T15544] md: pers->run() failed ...
[  536.684217][T15546] md: could not open device unknown-block(1,0).
[  536.684557][T15546] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  536.731715][T15546] md/raid:md0: not clean -- starting background reconstruction
[  536.731738][T15546] md/raid:md0: not enough configured devices (1, minimum 2)
[  536.731761][T15546] md: pers->run() failed ...
executing program
[  536.824244][T15548] md: could not open device unknown-block(1,0).
[  536.824586][T15548] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  536.891427][T15548] md/raid:md0: not clean -- starting background reconstruction
[  536.891454][T15548] md/raid:md0: not enough configured devices (1, minimum 2)
[  536.891462][T15548] md: pers->run() failed ...
executing program
[  536.994755][T15550] md: could not open device unknown-block(1,0).
[  536.995089][T15550] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.051426][T15550] md/raid:md0: not clean -- starting background reconstruction
[  537.051453][T15550] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.051463][T15550] md: pers->run() failed ...
executing program
[  537.134214][T15552] md: could not open device unknown-block(1,0).
[  537.134536][T15552] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.201774][T15552] md/raid:md0: not clean -- starting background reconstruction
[  537.201799][T15552] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.201809][T15552] md: pers->run() failed ...
executing program
[  537.274307][T15554] md: could not open device unknown-block(1,0).
[  537.274689][T15554] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.341527][T15554] md/raid:md0: not clean -- starting background reconstruction
executing program
[  537.341553][T15554] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.341562][T15554] md: pers->run() failed ...
[  537.444255][T15556] md: could not open device unknown-block(1,0).
[  537.444631][T15556] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.501507][T15556] md/raid:md0: not clean -- starting background reconstruction
[  537.501531][T15556] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.501542][T15556] md: pers->run() failed ...
executing program
[  537.584212][T15558] md: could not open device unknown-block(1,0).
[  537.584562][T15558] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.631404][T15558] md/raid:md0: not clean -- starting background reconstruction
[  537.631429][T15558] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.631443][T15558] md: pers->run() failed ...
executing program
[  537.714217][T15560] md: could not open device unknown-block(1,0).
[  537.714544][T15560] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.761674][T15560] md/raid:md0: not clean -- starting background reconstruction
[  537.761697][T15560] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.761705][T15560] md: pers->run() failed ...
executing program
[  537.854220][T15562] md: could not open device unknown-block(1,0).
[  537.854545][T15562] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  537.942543][T15562] md/raid:md0: not clean -- starting background reconstruction
[  537.942567][T15562] md/raid:md0: not enough configured devices (1, minimum 2)
[  537.942575][T15562] md: pers->run() failed ...
executing program
[  538.034209][T15564] md: could not open device unknown-block(1,0).
[  538.034549][T15564] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.111796][T15564] md/raid:md0: not clean -- starting background reconstruction
executing program
[  538.111821][T15564] md/raid:md0: not enough configured devices (1, minimum 2)
[  538.111829][T15564] md: pers->run() failed ...
[  538.174420][T15566] md: could not open device unknown-block(1,0).
[  538.174767][T15566] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.241345][T15566] md/raid:md0: not clean -- starting background reconstruction
[  538.241372][T15566] md/raid:md0: not enough configured devices (1, minimum 2)
[  538.241380][T15566] md: pers->run() failed ...
executing program
[  538.324256][T15568] md: could not open device unknown-block(1,0).
[  538.324598][T15568] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.381457][T15568] md/raid:md0: not clean -- starting background reconstruction
[  538.381483][T15568] md/raid:md0: not enough configured devices (1, minimum 2)
[  538.381493][T15568] md: pers->run() failed ...
executing program
[  538.464220][T15570] md: could not open device unknown-block(1,0).
[  538.464566][T15570] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.541511][T15570] md/raid:md0: not clean -- starting background reconstruction
[  538.541535][T15570] md/raid:md0: not enough configured devices (1, minimum 2)
[  538.541544][T15570] md: pers->run() failed ...
executing program
[  538.614240][T15572] md: could not open device unknown-block(1,0).
[  538.614588][T15572] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.681907][T15572] md/raid:md0: not clean -- starting background reconstruction
[  538.681930][T15572] md/raid:md0: not enough configured devices (1, minimum 2)
[  538.681939][T15572] md: pers->run() failed ...
executing program
[  538.764260][T15574] md: could not open device unknown-block(1,0).
[  538.764588][T15574] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.821442][T15574] md/raid:md0: not clean -- starting background reconstruction
[  538.821467][T15574] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  538.821477][T15574] md: pers->run() failed ...
[  538.904246][T15576] md: could not open device unknown-block(1,0).
[  538.904573][T15576] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  538.951934][T15576] md/raid:md0: not clean -- starting background reconstruction
[  538.951957][T15576] md/raid:md0: not enough configured devices (1, minimum 2)
[  538.951965][T15576] md: pers->run() failed ...
executing program
[  539.034248][T15578] md: could not open device unknown-block(1,0).
[  539.034582][T15578] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.081385][T15578] md/raid:md0: not clean -- starting background reconstruction
[  539.081407][T15578] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.081432][T15578] md: pers->run() failed ...
executing program
[  539.164223][T15580] md: could not open device unknown-block(1,0).
[  539.164564][T15580] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.211341][T15580] md/raid:md0: not clean -- starting background reconstruction
[  539.211366][T15580] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.211377][T15580] md: pers->run() failed ...
executing program
[  539.294212][T15582] md: could not open device unknown-block(1,0).
[  539.294551][T15582] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.351353][T15582] md/raid:md0: not clean -- starting background reconstruction
[  539.351377][T15582] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.351387][T15582] md: pers->run() failed ...
executing program
[  539.444565][T15584] md: could not open device unknown-block(1,0).
[  539.444894][T15584] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.521468][T15584] md/raid:md0: not clean -- starting background reconstruction
executing program
[  539.521493][T15584] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.521504][T15584] md: pers->run() failed ...
[  539.604257][T15586] md: could not open device unknown-block(1,0).
[  539.604618][T15586] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.651535][T15586] md/raid:md0: not clean -- starting background reconstruction
[  539.651559][T15586] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.651570][T15586] md: pers->run() failed ...
executing program
[  539.744250][T15588] md: could not open device unknown-block(1,0).
[  539.744588][T15588] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.791916][T15588] md/raid:md0: not clean -- starting background reconstruction
[  539.791941][T15588] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.791951][T15588] md: pers->run() failed ...
executing program
[  539.894212][T15590] md: could not open device unknown-block(1,0).
[  539.894562][T15590] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  539.941557][T15590] md/raid:md0: not clean -- starting background reconstruction
[  539.941580][T15590] md/raid:md0: not enough configured devices (1, minimum 2)
[  539.941590][T15590] md: pers->run() failed ...
executing program
[  540.014239][T15592] md: could not open device unknown-block(1,0).
[  540.015020][T15592] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  540.071339][T15592] md/raid:md0: not clean -- starting background reconstruction
[  540.071363][T15592] md/raid:md0: not enough configured devices (1, minimum 2)
[  540.071373][T15592] md: pers->run() failed ...
executing program
[  540.164217][T15594] md: could not open device unknown-block(1,0).
[  540.164554][T15594] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  540.241410][T15594] md/raid:md0: not clean -- starting background reconstruction
[  540.241434][T15594] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  540.241449][T15594] md: pers->run() failed ...
[  540.324268][T15596] md: could not open device unknown-block(1,0).
[  540.324620][T15596] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  540.391473][T15596] md/raid:md0: not clean -- starting background reconstruction
[  540.391498][T15596] md/raid:md0: not enough configured devices (1, minimum 2)
[  540.391508][T15596] md: pers->run() failed ...
executing program
[  540.474296][T15598] md: could not open device unknown-block(1,0).
[  540.474662][T15598] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  540.541846][T15598] md/raid:md0: not clean -- starting background reconstruction
[  540.541869][T15598] md/raid:md0: not enough configured devices (1, minimum 2)
[  540.541880][T15598] md: pers->run() failed ...
executing program
[  540.634211][T15600] md: could not open device unknown-block(1,0).
[  540.634540][T15600] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  540.711404][T15600] md/raid:md0: not clean -- starting background reconstruction
[  540.711428][T15600] md/raid:md0: not enough configured devices (1, minimum 2)
[  540.711442][T15600] md: pers->run() failed ...
executing program
[  540.824283][T15602] md: could not open device unknown-block(1,0).
[  540.824673][T15602] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  540.871470][T15602] md/raid:md0: not clean -- starting background reconstruction
[  540.871494][T15602] md/raid:md0: not enough configured devices (1, minimum 2)
[  540.871504][T15602] md: pers->run() failed ...
executing program
[  540.954211][T15604] md: could not open device unknown-block(1,0).
[  540.954541][T15604] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.011855][T15604] md/raid:md0: not clean -- starting background reconstruction
[  541.011881][T15604] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.011892][T15604] md: pers->run() failed ...
executing program
[  541.104248][T15606] md: could not open device unknown-block(1,0).
[  541.104582][T15606] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.151415][T15606] md/raid:md0: not clean -- starting background reconstruction
[  541.151444][T15606] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.151452][T15606] md: pers->run() failed ...
executing program
[  541.244250][T15608] md: could not open device unknown-block(1,0).
[  541.244589][T15608] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.291496][T15608] md/raid:md0: not clean -- starting background reconstruction
[  541.291520][T15608] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.291543][T15608] md: pers->run() failed ...
executing program
[  541.384298][T15610] md: could not open device unknown-block(1,0).
[  541.384672][T15610] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.431907][T15610] md/raid:md0: not clean -- starting background reconstruction
[  541.431931][T15610] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.431941][T15610] md: pers->run() failed ...
executing program
[  541.514330][T15612] md: could not open device unknown-block(1,0).
[  541.514716][T15612] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.561580][T15612] md/raid:md0: not clean -- starting background reconstruction
[  541.561607][T15612] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.561629][T15612] md: pers->run() failed ...
executing program
[  541.644222][T15614] md: could not open device unknown-block(1,0).
[  541.644567][T15614] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.691307][T15614] md/raid:md0: not clean -- starting background reconstruction
[  541.691330][T15614] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  541.691340][T15614] md: pers->run() failed ...
[  541.754225][T15616] md: could not open device unknown-block(1,0).
[  541.754545][T15616] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.801393][T15616] md/raid:md0: not clean -- starting background reconstruction
[  541.801417][T15616] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.801431][T15616] md: pers->run() failed ...
executing program
[  541.884353][T15618] md: could not open device unknown-block(1,0).
[  541.884762][T15618] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  541.941618][T15618] md/raid:md0: not clean -- starting background reconstruction
[  541.941640][T15618] md/raid:md0: not enough configured devices (1, minimum 2)
[  541.941662][T15618] md: pers->run() failed ...
executing program
[  542.034216][T15620] md: could not open device unknown-block(1,0).
[  542.034537][T15620] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.101458][T15620] md/raid:md0: not clean -- starting background reconstruction
[  542.101482][T15620] md/raid:md0: not enough configured devices (1, minimum 2)
[  542.101492][T15620] md: pers->run() failed ...
executing program
[  542.194214][T15622] md: could not open device unknown-block(1,0).
[  542.195050][T15622] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.271900][T15622] md/raid:md0: not clean -- starting background reconstruction
[  542.271927][T15622] md/raid:md0: not enough configured devices (1, minimum 2)
[  542.271938][T15622] md: pers->run() failed ...
executing program
[  542.354209][T15624] md: could not open device unknown-block(1,0).
[  542.354549][T15624] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.401427][T15624] md/raid:md0: not clean -- starting background reconstruction
[  542.401455][T15624] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  542.401465][T15624] md: pers->run() failed ...
[  542.484259][T15626] md: could not open device unknown-block(1,0).
[  542.484585][T15626] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.531521][T15626] md/raid:md0: not clean -- starting background reconstruction
[  542.531545][T15626] md/raid:md0: not enough configured devices (1, minimum 2)
[  542.531555][T15626] md: pers->run() failed ...
executing program
[  542.614249][T15628] md: could not open device unknown-block(1,0).
[  542.614581][T15628] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.681949][T15628] md/raid:md0: not clean -- starting background reconstruction
[  542.681972][T15628] md/raid:md0: not enough configured devices (1, minimum 2)
[  542.681996][T15628] md: pers->run() failed ...
executing program
[  542.764364][T15630] md: could not open device unknown-block(1,0).
[  542.764767][T15630] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.821541][T15630] md/raid:md0: not clean -- starting background reconstruction
[  542.821565][T15630] md/raid:md0: not enough configured devices (1, minimum 2)
[  542.821576][T15630] md: pers->run() failed ...
executing program
[  542.904210][T15632] md: could not open device unknown-block(1,0).
[  542.904519][T15632] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  542.962084][T15632] md/raid:md0: not clean -- starting background reconstruction
[  542.962105][T15632] md/raid:md0: not enough configured devices (1, minimum 2)
[  542.962112][T15632] md: pers->run() failed ...
executing program
[  543.054210][T15634] md: could not open device unknown-block(1,0).
[  543.054526][T15634] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  543.151790][T15634] md/raid:md0: not clean -- starting background reconstruction
executing program
[  543.151817][T15634] md/raid:md0: not enough configured devices (1, minimum 2)
[  543.151828][T15634] md: pers->run() failed ...
[  543.244275][T15636] md: could not open device unknown-block(1,0).
[  543.244652][T15636] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  543.301485][T15636] md/raid:md0: not clean -- starting background reconstruction
[  543.301508][T15636] md/raid:md0: not enough configured devices (1, minimum 2)
[  543.301516][T15636] md: pers->run() failed ...
executing program
[  543.384323][T15638] md: could not open device unknown-block(1,0).
[  543.384716][T15638] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  543.431568][T15638] md/raid:md0: not clean -- starting background reconstruction
[  543.431591][T15638] md/raid:md0: not enough configured devices (1, minimum 2)
[  543.431602][T15638] md: pers->run() failed ...
executing program
[  543.514217][T15640] md: could not open device unknown-block(1,0).
[  543.514550][T15640] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  543.571421][T15640] md/raid:md0: not clean -- starting background reconstruction
[  543.571449][T15640] md/raid:md0: not enough configured devices (1, minimum 2)
[  543.571460][T15640] md: pers->run() failed ...
executing program
[  543.664253][T15642] md: could not open device unknown-block(1,0).
[  543.664625][T15642] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  543.711331][T15642] md/raid:md0: not clean -- starting background reconstruction
executing program
[  543.711354][T15642] md/raid:md0: not enough configured devices (1, minimum 2)
[  543.711365][T15642] md: pers->run() failed ...
[  543.794302][T15644] md: could not open device unknown-block(1,0).
[  543.794654][T15644] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  543.851749][T15644] md/raid:md0: not clean -- starting background reconstruction
[  543.851773][T15644] md/raid:md0: not enough configured devices (1, minimum 2)
[  543.851783][T15644] md: pers->run() failed ...
executing program
[  543.954301][T15646] md: could not open device unknown-block(1,0).
[  543.954697][T15646] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.011893][T15646] md/raid:md0: not clean -- starting background reconstruction
[  544.011917][T15646] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.011928][T15646] md: pers->run() failed ...
executing program
[  544.104263][T15648] md: could not open device unknown-block(1,0).
[  544.104626][T15648] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.191428][T15648] md/raid:md0: not clean -- starting background reconstruction
[  544.191452][T15648] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.191462][T15648] md: pers->run() failed ...
executing program
[  544.284288][T15650] md: could not open device unknown-block(1,0).
[  544.284685][T15650] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.331951][T15650] md/raid:md0: not clean -- starting background reconstruction
[  544.331977][T15650] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.331988][T15650] md: pers->run() failed ...
executing program
[  544.414238][T15652] md: could not open device unknown-block(1,0).
[  544.414594][T15652] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.461888][T15652] md/raid:md0: not clean -- starting background reconstruction
executing program
[  544.461915][T15652] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.461923][T15652] md: pers->run() failed ...
[  544.534320][T15654] md: could not open device unknown-block(1,0).
[  544.534701][T15654] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.591525][T15654] md/raid:md0: not clean -- starting background reconstruction
[  544.591551][T15654] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.591572][T15654] md: pers->run() failed ...
executing program
[  544.684608][T15656] md: could not open device unknown-block(1,0).
[  544.684929][T15656] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.731451][T15656] md/raid:md0: not clean -- starting background reconstruction
[  544.731474][T15656] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.731484][T15656] md: pers->run() failed ...
executing program
[  544.824314][T15658] md: could not open device unknown-block(1,0).
[  544.824676][T15658] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  544.871484][T15658] md/raid:md0: not clean -- starting background reconstruction
[  544.871507][T15658] md/raid:md0: not enough configured devices (1, minimum 2)
[  544.871645][T15658] md: pers->run() failed ...
executing program
[  544.974221][T15660] md: could not open device unknown-block(1,0).
[  544.974565][T15660] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.042059][T15660] md/raid:md0: not clean -- starting background reconstruction
[  545.042084][T15660] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.042095][T15660] md: pers->run() failed ...
executing program
[  545.124223][T15662] md: could not open device unknown-block(1,0).
[  545.124547][T15662] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.171306][T15662] md/raid:md0: not clean -- starting background reconstruction
[  545.171330][T15662] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.171340][T15662] md: pers->run() failed ...
executing program
[  545.254334][T15664] md: could not open device unknown-block(1,0).
[  545.254711][T15664] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.301901][T15664] md/raid:md0: not clean -- starting background reconstruction
[  545.301925][T15664] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.301935][T15664] md: pers->run() failed ...
executing program
[  545.384248][T15666] md: could not open device unknown-block(1,0).
[  545.384577][T15666] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.431515][T15666] md/raid:md0: not clean -- starting background reconstruction
[  545.431537][T15666] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.431558][T15666] md: pers->run() failed ...
executing program
[  545.514243][T15668] md: could not open device unknown-block(1,0).
[  545.514581][T15668] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.581820][T15668] md/raid:md0: not clean -- starting background reconstruction
[  545.581844][T15668] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.581854][T15668] md: pers->run() failed ...
executing program
[  545.674287][T15670] md: could not open device unknown-block(1,0).
[  545.674632][T15670] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.721447][T15670] md/raid:md0: not clean -- starting background reconstruction
[  545.721472][T15670] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.721483][T15670] md: pers->run() failed ...
executing program
[  545.824219][T15672] md: could not open device unknown-block(1,0).
[  545.824580][T15672] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.871288][T15672] md/raid:md0: not clean -- starting background reconstruction
[  545.871312][T15672] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  545.871322][T15672] md: pers->run() failed ...
[  545.934288][T15674] md: could not open device unknown-block(1,0).
[  545.934654][T15674] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  545.991429][T15674] md/raid:md0: not clean -- starting background reconstruction
[  545.991455][T15674] md/raid:md0: not enough configured devices (1, minimum 2)
[  545.991465][T15674] md: pers->run() failed ...
executing program
[  546.054296][T15676] md: could not open device unknown-block(1,0).
[  546.054655][T15676] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  546.111842][T15676] md/raid:md0: not clean -- starting background reconstruction
[  546.111869][T15676] md/raid:md0: not enough configured devices (1, minimum 2)
[  546.111880][T15676] md: pers->run() failed ...
executing program
[  546.204576][T15678] md: could not open device unknown-block(1,0).
[  546.204908][T15678] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  546.271471][T15678] md/raid:md0: not clean -- starting background reconstruction
[  546.271496][T15678] md/raid:md0: not enough configured devices (1, minimum 2)
[  546.271506][T15678] md: pers->run() failed ...
executing program
[  546.354332][T15680] md: could not open device unknown-block(1,0).
[  546.354709][T15680] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  546.411520][T15680] md/raid:md0: not clean -- starting background reconstruction
[  546.411544][T15680] md/raid:md0: not enough configured devices (1, minimum 2)
[  546.411567][T15680] md: pers->run() failed ...
executing program
[  546.494695][T15682] md: could not open device unknown-block(1,0).
[  546.495037][T15682] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  546.561568][T15682] md/raid:md0: not clean -- starting background reconstruction
[  546.561592][T15682] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  546.561602][T15682] md: pers->run() failed ...
[  546.664299][T15684] md: could not open device unknown-block(1,0).
[  546.664661][T15684] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  546.731529][T15684] md/raid:md0: not clean -- starting background reconstruction
[  546.731554][T15684] md/raid:md0: not enough configured devices (1, minimum 2)
[  546.731564][T15684] md: pers->run() failed ...
executing program
[  546.824228][T15686] md: could not open device unknown-block(1,0).
[  546.824561][T15686] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  546.901528][T15686] md/raid:md0: not clean -- starting background reconstruction
[  546.901551][T15686] md/raid:md0: not enough configured devices (1, minimum 2)
[  546.901559][T15686] md: pers->run() failed ...
executing program
[  546.984252][T15688] md: could not open device unknown-block(1,0).
[  546.984629][T15688] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.051422][T15688] md/raid:md0: not clean -- starting background reconstruction
[  547.051451][T15688] md/raid:md0: not enough configured devices (1, minimum 2)
[  547.051461][T15688] md: pers->run() failed ...
executing program
[  547.144230][T15690] md: could not open device unknown-block(1,0).
[  547.144568][T15690] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.191428][T15690] md/raid:md0: not clean -- starting background reconstruction
[  547.191457][T15690] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  547.191467][T15690] md: pers->run() failed ...
[  547.304277][T15692] md: could not open device unknown-block(1,0).
[  547.304670][T15692] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.351877][T15692] md/raid:md0: not clean -- starting background reconstruction
[  547.351901][T15692] md/raid:md0: not enough configured devices (1, minimum 2)
[  547.351911][T15692] md: pers->run() failed ...
executing program
[  547.434254][T15694] md: could not open device unknown-block(1,0).
[  547.434602][T15694] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.491447][T15694] md/raid:md0: not clean -- starting background reconstruction
[  547.491471][T15694] md/raid:md0: not enough configured devices (1, minimum 2)
[  547.491482][T15694] md: pers->run() failed ...
executing program
[  547.584208][T15696] md: could not open device unknown-block(1,0).
[  547.584527][T15696] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.631309][T15696] md/raid:md0: not clean -- starting background reconstruction
[  547.631333][T15696] md/raid:md0: not enough configured devices (1, minimum 2)
[  547.631343][T15696] md: pers->run() failed ...
executing program
[  547.734213][T15698] md: could not open device unknown-block(1,0).
[  547.734549][T15698] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.791521][T15698] md/raid:md0: not clean -- starting background reconstruction
[  547.791546][T15698] md/raid:md0: not enough configured devices (1, minimum 2)
[  547.791556][T15698] md: pers->run() failed ...
executing program
[  547.874252][T15700] md: could not open device unknown-block(1,0).
[  547.874628][T15700] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  547.931787][T15700] md/raid:md0: not clean -- starting background reconstruction
[  547.931813][T15700] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  547.931824][T15700] md: pers->run() failed ...
[  548.014224][T15702] md: could not open device unknown-block(1,0).
[  548.014551][T15702] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.063690][T15702] md/raid:md0: not clean -- starting background reconstruction
[  548.063714][T15702] md/raid:md0: not enough configured devices (1, minimum 2)
[  548.063725][T15702] md: pers->run() failed ...
executing program
[  548.164288][T15704] md: could not open device unknown-block(1,0).
[  548.164651][T15704] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.221615][T15704] md/raid:md0: not clean -- starting background reconstruction
[  548.221639][T15704] md/raid:md0: not enough configured devices (1, minimum 2)
[  548.221649][T15704] md: pers->run() failed ...
executing program
[  548.314218][T15706] md: could not open device unknown-block(1,0).
[  548.314544][T15706] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.381569][T15706] md/raid:md0: not clean -- starting background reconstruction
[  548.381594][T15706] md/raid:md0: not enough configured devices (1, minimum 2)
[  548.381604][T15706] md: pers->run() failed ...
executing program
[  548.454256][T15708] md: could not open device unknown-block(1,0).
[  548.454641][T15708] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.511578][T15708] md/raid:md0: not clean -- starting background reconstruction
[  548.511605][T15708] md/raid:md0: not enough configured devices (1, minimum 2)
[  548.511615][T15708] md: pers->run() failed ...
executing program
[  548.594233][T15710] md: could not open device unknown-block(1,0).
[  548.594986][T15710] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.641347][T15710] md/raid:md0: not clean -- starting background reconstruction
[  548.641371][T15710] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  548.641381][T15710] md: pers->run() failed ...
[  548.724313][T15712] md: could not open device unknown-block(1,0).
[  548.724694][T15712] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.781462][T15712] md/raid:md0: not clean -- starting background reconstruction
[  548.781486][T15712] md/raid:md0: not enough configured devices (1, minimum 2)
[  548.781494][T15712] md: pers->run() failed ...
executing program
[  548.874655][T15714] md: could not open device unknown-block(1,0).
[  548.875002][T15714] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  548.921458][T15714] md/raid:md0: not clean -- starting background reconstruction
[  548.921482][T15714] md/raid:md0: not enough configured devices (1, minimum 2)
[  548.921492][T15714] md: pers->run() failed ...
executing program
[  549.014217][T15716] md: could not open device unknown-block(1,0).
[  549.014549][T15716] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.061362][T15716] md/raid:md0: not clean -- starting background reconstruction
[  549.061387][T15716] md/raid:md0: not enough configured devices (1, minimum 2)
[  549.061398][T15716] md: pers->run() failed ...
executing program
[  549.164214][T15718] md: could not open device unknown-block(1,0).
[  549.164544][T15718] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.211449][T15718] md/raid:md0: not clean -- starting background reconstruction
[  549.211473][T15718] md/raid:md0: not enough configured devices (1, minimum 2)
[  549.211484][T15718] md: pers->run() failed ...
executing program
[  549.284262][T15720] md: could not open device unknown-block(1,0).
[  549.284639][T15720] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.361460][T15720] md/raid:md0: not clean -- starting background reconstruction
[  549.361484][T15720] md/raid:md0: not enough configured devices (1, minimum 2)
[  549.361494][T15720] md: pers->run() failed ...
executing program
[  549.444243][T15722] md: could not open device unknown-block(1,0).
[  549.444580][T15722] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.492290][T15722] md/raid:md0: not clean -- starting background reconstruction
[  549.492317][T15722] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  549.492328][T15722] md: pers->run() failed ...
[  549.574278][T15724] md: could not open device unknown-block(1,0).
[  549.574655][T15724] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.631463][T15724] md/raid:md0: not clean -- starting background reconstruction
[  549.631489][T15724] md/raid:md0: not enough configured devices (1, minimum 2)
[  549.631499][T15724] md: pers->run() failed ...
executing program
[  549.704253][T15726] md: could not open device unknown-block(1,0).
[  549.704633][T15726] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.771354][T15726] md/raid:md0: not clean -- starting background reconstruction
[  549.771379][T15726] md/raid:md0: not enough configured devices (1, minimum 2)
[  549.771400][T15726] md: pers->run() failed ...
executing program
[  549.854214][T15728] md: could not open device unknown-block(1,0).
[  549.854550][T15728] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  549.911736][T15728] md/raid:md0: not clean -- starting background reconstruction
[  549.911760][T15728] md/raid:md0: not enough configured devices (1, minimum 2)
[  549.911771][T15728] md: pers->run() failed ...
executing program
[  549.994261][T15730] md: could not open device unknown-block(1,0).
[  549.994609][T15730] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.041481][T15730] md/raid:md0: not clean -- starting background reconstruction
[  550.041505][T15730] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  550.041515][T15730] md: pers->run() failed ...
[  550.134255][T15732] md: could not open device unknown-block(1,0).
[  550.134644][T15732] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.201419][T15732] md/raid:md0: not clean -- starting background reconstruction
[  550.201448][T15732] md/raid:md0: not enough configured devices (1, minimum 2)
[  550.201459][T15732] md: pers->run() failed ...
executing program
[  550.284209][T15734] md: could not open device unknown-block(1,0).
[  550.284535][T15734] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.331558][T15734] md/raid:md0: not clean -- starting background reconstruction
[  550.331582][T15734] md/raid:md0: not enough configured devices (1, minimum 2)
[  550.331607][T15734] md: pers->run() failed ...
executing program
[  550.414228][T15736] md: could not open device unknown-block(1,0).
[  550.414563][T15736] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.471406][T15736] md/raid:md0: not clean -- starting background reconstruction
[  550.471429][T15736] md/raid:md0: not enough configured devices (1, minimum 2)
[  550.471444][T15736] md: pers->run() failed ...
executing program
[  550.564299][T15738] md: could not open device unknown-block(1,0).
[  550.564669][T15738] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.611553][T15738] md/raid:md0: not clean -- starting background reconstruction
[  550.611577][T15738] md/raid:md0: not enough configured devices (1, minimum 2)
[  550.611598][T15738] md: pers->run() failed ...
executing program
[  550.694239][T15740] md: could not open device unknown-block(1,0).
[  550.695040][T15740] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.751870][T15740] md/raid:md0: not clean -- starting background reconstruction
[  550.751897][T15740] md/raid:md0: not enough configured devices (1, minimum 2)
[  550.751905][T15740] md: pers->run() failed ...
executing program
[  550.844329][T15742] md: could not open device unknown-block(1,0).
[  550.844737][T15742] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  550.891379][T15742] md/raid:md0: not clean -- starting background reconstruction
[  550.891404][T15742] md/raid:md0: not enough configured devices (1, minimum 2)
[  550.891415][T15742] md: pers->run() failed ...
executing program
[  550.974295][T15744] md: could not open device unknown-block(1,0).
[  550.974681][T15744] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.021477][T15744] md/raid:md0: not clean -- starting background reconstruction
[  551.021502][T15744] md/raid:md0: not enough configured devices (1, minimum 2)
[  551.021512][T15744] md: pers->run() failed ...
executing program
[  551.104247][T15746] md: could not open device unknown-block(1,0).
[  551.104620][T15746] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.161510][T15746] md/raid:md0: not clean -- starting background reconstruction
[  551.161535][T15746] md/raid:md0: not enough configured devices (1, minimum 2)
[  551.161545][T15746] md: pers->run() failed ...
executing program
[  551.244225][T15748] md: could not open device unknown-block(1,0).
[  551.244572][T15748] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.291340][T15748] md/raid:md0: not clean -- starting background reconstruction
[  551.291364][T15748] md/raid:md0: not enough configured devices (1, minimum 2)
[  551.291374][T15748] md: pers->run() failed ...
executing program
[  551.374219][T15750] md: could not open device unknown-block(1,0).
[  551.374546][T15750] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.431801][T15750] md/raid:md0: not clean -- starting background reconstruction
[  551.431826][T15750] md/raid:md0: not enough configured devices (1, minimum 2)
[  551.431834][T15750] md: pers->run() failed ...
executing program
[  551.524225][T15752] md: could not open device unknown-block(1,0).
[  551.524557][T15752] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.611512][T15752] md/raid:md0: not clean -- starting background reconstruction
[  551.611533][T15752] md/raid:md0: not enough configured devices (1, minimum 2)
executing program
[  551.611541][T15752] md: pers->run() failed ...
[  551.684264][T15754] md: could not open device unknown-block(1,0).
[  551.684643][T15754] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.731850][T15754] md/raid:md0: not clean -- starting background reconstruction
[  551.731873][T15754] md/raid:md0: not enough configured devices (1, minimum 2)
[  551.731892][T15754] md: pers->run() failed ...
executing program
[  551.814303][T15756] md: could not open device unknown-block(1,0).
[  551.814676][T15756] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  551.861457][T15756] md/raid:md0: not clean -- starting background reconstruction
[  551.861480][T15756] md/raid:md0: not enough configured devices (1, minimum 2)
[  551.861490][T15756] md: pers->run() failed ...
executing program
[  551.974268][T15758] md: could not open device unknown-block(1,0).
[  551.974591][T15758] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.021348][T15758] md/raid:md0: not clean -- starting background reconstruction
[  552.021371][T15758] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.021380][T15758] md: pers->run() failed ...
executing program
[  552.114278][T15760] md: could not open device unknown-block(1,0).
[  552.114653][T15760] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.181571][T15760] md/raid:md0: not clean -- starting background reconstruction
[  552.181598][T15760] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.181608][T15760] md: pers->run() failed ...
executing program
[  552.264222][T15762] md: could not open device unknown-block(1,0).
[  552.264564][T15762] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.312048][T15762] md/raid:md0: not clean -- starting background reconstruction
[  552.312072][T15762] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.312083][T15762] md: pers->run() failed ...
executing program
[  552.384211][T15764] md: could not open device unknown-block(1,0).
[  552.384537][T15764] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.441415][T15764] md/raid:md0: not clean -- starting background reconstruction
[  552.441442][T15764] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.441453][T15764] md: pers->run() failed ...
executing program
[  552.514219][T15766] md: could not open device unknown-block(1,0).
[  552.514574][T15766] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.562261][T15766] md/raid:md0: not clean -- starting background reconstruction
[  552.562287][T15766] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.562297][T15766] md: pers->run() failed ...
executing program
[  552.644223][T15768] md: could not open device unknown-block(1,0).
[  552.644550][T15768] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.691531][T15768] md/raid:md0: not clean -- starting background reconstruction
[  552.691555][T15768] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.691565][T15768] md: pers->run() failed ...
executing program
[  552.764295][T15770] md: could not open device unknown-block(1,0).
[  552.764700][T15770] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.811447][T15770] md/raid:md0: not clean -- starting background reconstruction
[  552.811471][T15770] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.811482][T15770] md: pers->run() failed ...
executing program
[  552.894211][T15772] md: could not open device unknown-block(1,0).
[  552.894536][T15772] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  552.951574][T15772] md/raid:md0: not clean -- starting background reconstruction
[  552.951596][T15772] md/raid:md0: not enough configured devices (1, minimum 2)
[  552.951605][T15772] md: pers->run() failed ...
executing program
[  553.014278][T15774] md: could not open device unknown-block(1,0).
[  553.014665][T15774] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  553.063735][T15774] md/raid:md0: not clean -- starting background reconstruction
[  553.063759][T15774] md/raid:md0: not enough configured devices (1, minimum 2)
[  553.063769][T15774] md: pers->run() failed ...
executing program
[  553.144346][T15776] md: could not open device unknown-block(1,0).
[  553.144743][T15776] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  553.191425][T15776] md/raid:md0: not clean -- starting background reconstruction
[  553.191452][T15776] md/raid:md0: not enough configured devices (1, minimum 2)
[  553.191462][T15776] md: pers->run() failed ...
executing program
[  553.284296][T15778] md: could not open device unknown-block(1,0).
[  553.284672][T15778] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  553.352095][T15778] md/raid:md0: not clean -- starting background reconstruction
[  553.352119][T15778] md/raid:md0: not enough configured devices (1, minimum 2)
[  553.352129][T15778] md: pers->run() failed ...
executing program
[  553.444212][T15780] md: could not open device unknown-block(1,0).
[  553.444546][T15780] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  553.541480][T15780] md/raid:md0: not clean -- starting background reconstruction
[  553.541505][T15780] md/raid:md0: not enough configured devices (1, minimum 2)
[  553.541516][T15780] md: pers->run() failed ...
executing program
[  553.634219][T15782] md: could not open device unknown-block(1,0).
[  553.634564][T15782] md: async del_gendisk mode will be removed in future, please upgrade to mdadm-4.5+
[  553.681344][T15782] md/raid:md0: not clean -- starting background reconstruction
[  553.681368][T15782] md/raid:md0: not enough configured devices (1, minimum 2)
[  553.681377][T15782] md: pers->run() failed ...
executing program

[host] Command execution timed out after 2m30s