messages log file full of:
Oct 1 05:15:04 smeserver kernel: hda: dma_intr: status=0x51 { DriveReady SeekComplete Error }
Oct 1 05:15:04 smeserver kernel: hda: dma_intr: error=0x84 { DriveStatusError BadCRC }
Doing a cat /proc/mdstat shows:
[root@smeserver root]# cat /proc/mdstat
Personalities : [raid1]
read_ahead 1024 sectors
md2 : active raid1 hdc3[1]
264960 blocks [2/1] [_U]
md1 : active raid1 hda2[0] hdc2[1]
77778624 blocks [2/2] [UU]
md0 : active raid1 hda1[0] hdc1[1]
104320 blocks [2/2] [UU]
unused devices: <none>
[root@smeserver root]#