This is an automatically generated mail message from mdadm running on baron A Fail event had been detected on md device /dev/md/0. It could be related to component device /dev/sda1. Faithfully yours, etc. P.S. The /proc/mdstat file currently contains the following: Personalities : [raid1] [raid0] [raid10] [raid6] [raid5] [raid4] md3 : active raid1 sdc4[2] 1843414335 blocks super 1.2 [2/1] [_U] md0 : active raid1 sdc1[2] sda1[0](F) 12581816 blocks super 1.2 [2/1] [_U] md1 : active raid1 sdc2[2] sda2[0] 524276 blocks super 1.2 [2/2] [UU] md2 : active raid1 sdc3[2] 1073740664 blocks super 1.2 [2/1] [_U] unused devices: <none>