From: Green, Simon (Simon.Green@EU.ALTRIA.COM)
Date: Mon Jul 14 2003 - 11:25:09 EDT
One of our M80s is giving me a bit of trouble.
Last week, one of the internal SCSI disk started to act up: hardware errors,
some LVM I/O errors and some stale partitions.
This was hdisk1, which was half of the mirrored rootvg, so no immediate
danger: I just dropped all the copies and removed it from rootvg,
preparatory to replacing it again.
I then realised that this was actually a replacement disk, installed the
week before after its predecessor exhibited similar problems.
Obviously I was concerned at that point that maybe it was actually a SCSI
problem, so I ran some diagnostics.
Diags on scsi1 showed no problems. Although the error log analysis showed a
disk error, a certify of the disk was clean.
After running several certifies on the disk without problems, I put it back
into rootvg and re-built the mirrors, to see what would happen. That was on
Wednesday.
For several days, nothing much happened. I had two block-relocations. Then
this afternoon it failed again: this time it even got declared missing!
The ELA show a fault again, but certify says it's OK. Diags against scsi1
show no problems.
I'm running a format & certify of the disk, now. What else can I do? I'm
particularly interested in how I might confirm that the SCSI adapter is OK.
(Please note: I'm in England and the server's in Switzerland.)
I suppose this _could_ just be another faulty disk, but I'd be a lot happier
if I could find something which showed me exactly what was broken.
Simon Green
Altria ITSC Europe Ltd
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