I have two disks in a RAID1. An interesting thing occurred today. The
machine stopped responding, and upone reboot, I got a kernel panic.
Sadly, I had to act quickly and don't have the exact messages to hand.
I think it was trying to rebuild the RAID array, due to a superblock
modification time discrepancy (!).
The next message was hda 0x51 DriveReady SeekComplete, followed by the
actual kernel panic in the RAID code. I disconnected hda, leaving hdc
connected. I then got a successful boot, which seems to indicate that
hda has a hardware fault. But I seem to be missing files from the last
five days. How can this be? The system was working fine for most of
the last five days, and I am confused as to why these missing files
weren't raided to hdc.