Personalities : [raid6] [raid5] [raid4] [raid0] [raid1] [raid10] 
md126 : active (auto-read-only) raid5 sdb[3] sdc[2] sda[1] sdd[0]
      2930280448 blocks super external:/md127/0 level 5, 32k chunk, algorithm 0 [4/4] [UUUU]
      
md127 : inactive sdc[3](S) sda[2](S) sdb[1](S) sdd[0](S)
      9568 blocks super external:imsm
       
unused devices: <none>