Hi! Am Montag 20 Juli 2009 schrieb Andrew Joakimsen:
I need help with a raid5 array, that does not start. System has booted in maintenance mode, prompt says "repair filesystem".
There are 3 raid5 arrays, one of them is not coming up. It is a data volume, used for backups.
Did you try to assemble the array by hand?
Messages after boot is as follows:
fsck.ext3: Invalid argument while trying to open /dev/md0 /dev/md0: The superblock could not be read or does not describe a correct ext2 filesystem. If the device is valid and it really contains an ext2 filesystem (and not swap or ufs or something else), then the superblock is corrupt, and you might try running e2fsck with an alternate superblock: e2fsck -b 8193 <device>
This is because /dev/md0 does not exists (is not backed by the actual disk). Once your MD is up again this should vanish.
No, it is not possible. MD RAID does not work well and honestly shouldn't be used even for testing.
I have been using MD RAID for a long time now, and only time I had problems was after a power outage that left my disk with different timestamps. A forced reassambly solved that. Regards, Matthias -- Matthias Bach www.marix.org „Der einzige Weg, die Grenzen des Möglichen zu finden, ist ein klein wenig über diese hinaus in das Unmögliche vorzustoßen.“ - Arthur C. Clarke