topic Re: Stale Extents in Operating System - HP-UX

Stale Extents

Shivkumar — Fri, 30 Sep 2005 20:54:42 GMT

Dear Sirs;

We received the below alert from out alert monitoring system:

Logical volume /dev/vg00/lvol5 has STALE extents

We are using hpux 11.00.

Can anyone explain what this message means and how to fix this ?

Thanks,
Shiv

Re: Stale Extents

A. Clay Stephenson — Fri, 30 Sep 2005 21:04:39 GMT

It means that some of the extents are out of date -- usually caused by a disk failure or temporary loss of connectivity. Execute vgsync /dev/vg00 and then use lvdisplay -v /dev/vg00/lvol5 to examine the extents. Good extents are "current".

Re: Stale Extents

Patrick Wallek — Fri, 30 Sep 2005 21:04:49 GMT

Usually you get this when a disk in a mirrored set goes bad.

I would suggest you check all the disks in VG00 and if one is bad, get it replaced.

Re: Stale Extents

Shivkumar — Fri, 30 Sep 2005 22:48:14 GMT

I am getting warning alerts for all the logical volumes on the box. Is it some major issue ?

Thanks,
Shiv

Re: Stale Extents

Patrick Wallek — Fri, 30 Sep 2005 23:02:56 GMT

You almost surely have a bad disk. Suggest you contact HP to get it replaced.

Re: Stale Extents

Yogeeraj_1 — Fri, 30 Sep 2005 23:16:34 GMT

hi shiv,

you can run stm (in graphics mode) to check the status of you disk.

if there are any further alert, immediately replace the disk

regards
yogeeraj

Re: Stale Extents

Shivkumar — Fri, 30 Sep 2005 23:48:03 GMT

What is command to check the bad disk using stm ?

Re: Stale Extents

Arunvijai_4 — Sat, 01 Oct 2005 00:54:22 GMT

Shiv, Take a look at this about STM
http://docs.hp.com/en/diag/stm/help/expert/scsi_cdx.htm
http://docs.hp.com/en/J6374-90018/ch04s04.html
http://docs.hp.com/en/B6191-90015/ch04s01.html

-Arun

Re: Stale Extents

Muthukumar_5 — Sat, 01 Oct 2005 01:35:19 GMT

Use this:

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=845015

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=953674

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=882650

hth.