topic Re: SCSI read error in Operating System - HP-UX

SCSI read error

Ravinder Singh Gill — Tue, 28 Jun 2005 04:36:48 GMT

I have identified that it is c8t2d0 that is having the SCSI read error. What do I do next to resolve the problem?

Re: SCSI read error

Robert-Jan Goossens_1 — Tue, 28 Jun 2005 04:52:34 GMT

Hi,

One error or more errors ? If you have several errors, change the disk for a new one.

If you need more info on how to remove/add the disk, please add info about your system.

What kind of disk (internal/external) ?
what kind of system and hpux version ?
mirrored ?
lvm/vxvm ?

Regards,
Robert-Jan

Re: SCSI read error

Ravinder Singh Gill — Tue, 28 Jun 2005 05:01:00 GMT

This is an external disk, to my knowledge it has the mirrored version on it. The same error is appearing multiple times. It is HPUX 11. or 11.i (off the top of my head).

Re: SCSI read error

Ravinder Singh Gill — Tue, 28 Jun 2005 05:01:42 GMT

Ps it is LVM

Re: SCSI read error

Robert-Jan Goossens_1 — Tue, 28 Jun 2005 05:41:09 GMT

could you post or attach the output of

(mirror check + hot swap check)

# vgdisplay -v

# ioscan -fnkCdisk

Re: SCSI read error

Sudeesh — Tue, 28 Jun 2005 05:41:22 GMT

pvdisplay -v |grep -i stale

Will list you the stale mirrored extends. If it is in large number I would suggest you to immediatly register a HP support call with Response Center, rather waiting for other options.

Sudeesh

Re: SCSI read error

Robert-Jan Goossens_1 — Tue, 28 Jun 2005 05:47:24 GMT

good question from Sudeesh, I am having the impression you have a spare disk (right) ?

If not call your support services and have them replace the disk.

Robert-Jan

Re: SCSI read error

Devender Khatana — Tue, 28 Jun 2005 06:16:34 GMT

Hi,

#strings /etc/lvmtab

Will let you know the VG which resides on this disk. &

#lvdisplay -v /dev/thatvg/lvol* |more
will give you the lvols which are spread on that disk & wheather they are mirroed or not.

HTH,
Devender

Re: SCSI read error

Ravinder Singh Gill — Tue, 28 Jun 2005 06:29:52 GMT

Thanks guys, called HP and they will be replacing the disk. They said it is a Fibre attached disk. Would this require an outage do you know? I mean the system to be shutdown or would it be hot swappable?

Re: SCSI read error

Ravinder Singh Gill — Tue, 28 Jun 2005 12:00:54 GMT

Thanks for your help guys. I logged a call with HP and after doing a few tests they came out and replaced the disk.