This is an automatically generated mail message from mdadm running on baron A DegradedArray event had been detected on md device /dev/md0. Faithfully yours, etc. P.S. The /proc/mdstat file currently contains the following: Personalities : [raid0] [raid1] [raid6] [raid5] [raid4] md1 : active raid1 sda2[1] 2104448 blocks [2/1] [_U] md2 : active raid1 sda3[1] 726266432 blocks [2/1] [_U] md0 : active (auto-read-only) raid1 sda1[1] 4200896 blocks [2/1] [_U] unused devices: <none>