Quote:>I have a RAID-1 setup going using kernel version 2.2.17, and it appears that
>there is a bad block on one of the two drives. I don't consider this a
>whole-drive failure, and would like to continue using that drive. Here are
>the messages I'm receiving:
>ckraid returns:
>read error on device file /dev/hdg4, block #23461956 = 0x1660044
>and the kernel reports:
>Oct 31 03:14:34 bardeen kernel: hdg: read_intr: status=0x59 { DriveReady
>SeekComplete DataRequest Error }
>Oct 31 03:14:34 bardeen kernel: hdg: read_intr: error=0x40 {
>UncorrectableError }, LBAsect=57189447, sector=46923912
>Oct 31 03:14:34 bardeen kernel: end_request: I/O error, dev 22:04 (hdg),
>sector 46923912
>So, is there anything I can do to tell the kernel to not use this block (on
>either drive) and to rebuild the RAID set skipping the bad section? What
>are my options other than replacing an entire drive that only has a small
>section bad?
IDE drives normally reserve some unseen disk space to automatically map
into any bad sectors. The fact that you see a bad sector that was not
seen before is a bad sign, it could mean that the drive is self
destructing.
If the drive manufacturer has a diagnostic program, see what it says. I
had a WD 2.1GB drive once, that appeared to pass even the distructive test
of writing all 1's or 0's to the drive. But when I tried to write mixed
data to the latter 3/4 of the drive, scandisk in Win95 kept finding more
bad sectors, and the non-destructive WD diagnostics at that point said
that the drive was bad with "no error sites remaining". The warranty
replacement worked flawlessly except for a temporary glitch below.
One other thought with your number of drives is overheating. When I was
getting lost interrupt errors I discovered that my case was packed with
lint in front of the inlet fan. Clearing that resolved my drive interrupt
problems with no loss of data (other than gaps in the logs), even though
it had gotten to the point that I could not 'shutdown'.
--
http://www.autox.chicago.il.us/ http://www.berniesfloral.net/
http://cgi-help.virtualave.net/ http://hammer.prohosting.com/~cgi-wiz/
by