Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10] md126 : active (auto-read-only) raid1 sda[1] sdb[0] 445403136 blocks super external:/md127/0 [2/2] [UU] md127 : inactive sdb[1](S) sda[0](S) 10402 blocks super external:imsm unused devices: