Help with Vinum disk crash...
Greg 'groggy' Lehey
grog at FreeBSD.org
Tue Feb 17 14:38:32 PST 2004
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On Tuesday, 17 February 2004 at 14:27:51 +0100, Danny Carroll wrote:
> About 6 weeks ago one of the disks in my Vinum array crashed.
> However, the major problem is now that the file system is corrupt. It
> appears I have lost all of my 300Gb virtual disk...
> This is what I found in the message log.
> Jan 2 04:13:07 guard /kernel: ad4s1a: hard error reading fsbn 317875665 of 150983369-150983370 (ad4s1 bn 317875665; cn 19786 tn 215 sn 30) trying PIO mode
> Jan 2 04:13:08 guard /kernel: ad4s1a: hard error reading fsbn 317875665 of 150983369-150983370 (ad4s1 bn 317875665; cn 19786 tn 215 sn 30) status=59 error=40
> Jan 2 04:13:08 guard /kernel: vinum: data.p0.s0 is crashed by force
> Jan 2 04:13:08 guard /kernel: vinum: data.p0 is degraded
> Jan 2 04:13:08 guard /kernel: fatal:data.p0.s0 read error, block 150983369 for 1024 bytes
> Jan 2 04:13:08 guard /kernel: data.p0.s0: user buffer block 452942752 for 1024 bytes
> Jan 2 04:13:09 guard /kernel: vinum: data.p0.s0 is stale by force
> I had not had time to look at this till now....
> When I do try and mount the volume, it says the following:
> [02:25 PM root at guard:/var/log]#mount /dev/vinum/data /usr/jails/ftp/data
> mount: /dev/vinum/data on /usr/jails/ftp/data: incorrect super block
> I suspect that the physical disk is dead, but I should be able to re-mount
> the volume with only 3 (out of 4 ) disks right?
I answered an almost identical question yesterday: it depends on the
volume structure, which you haven't stated. Look at
http://www.vinumvm.org/vinum/how-to-debug.html and supply in
particular the output of 'vinum list', unless the following applies:
If this volume has only one plex, you're lost, unless you can bring up
the failed disk long enough to make a backup.
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