topic Re: Stale Errors in Logical volume in Operating System - HP-UX

Stale Errors in Logical volume

susee_sundar — Fri, 07 Jul 2006 06:15:19 GMT

Hi

#lvdisplay -v /dev/vg01/lvol

i find few stale entries in the logical volume..
How can i recover the stale entries., currently my Logical Volume is mirrored.

What may be the Fault....?

Re: Stale Errors in Logical volume

Arunvijai_4 — Fri, 07 Jul 2006 06:20:57 GMT

Hi Susee,

Check these threads, it should help you

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=708592
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=802569

-Arun

Re: Stale Errors in Logical volume

freddy_21 — Fri, 07 Jul 2006 06:23:09 GMT

vgsync or lvsync the logical volume.

please check the disk maybe something problem about your disk.

Re: Stale Errors in Logical volume

Chan 007 — Fri, 07 Jul 2006 06:32:14 GMT

Hi,

try vgdisplay -v vg01

This will give you the list of LVs in stale. This may be b'cos of a disk failure. Get it repladed.

Chan

Re: Stale Errors in Logical volume

Sunil Sharma_1 — Fri, 07 Jul 2006 06:34:32 GMT

Susee,

It seems you have a bad disk.

register a case with h/w vendor (HP). They will replace the disk and then do vgcfgrestore on new disk.

Sunil

Re: Stale Errors in Logical volume

Arunvijai_4 — Fri, 07 Jul 2006 06:42:33 GMT

Hi Susee,

If you have any disk failure, do the following ..

# dd if=/dev/rdsk/cXtYdZ of=/dev/null bs=64K count=1000

-Arun

Re: Stale Errors in Logical volume

susee_sundar — Fri, 07 Jul 2006 07:26:56 GMT

Hi ..

I find One of My disk is having bad sectors..
Which is in the Volume group

But is there any option to fix it & what is the use of vgsync command

Re: Stale Errors in Logical volume

Mridul Shrivastava — Fri, 07 Jul 2006 07:58:14 GMT

when disk is replaced then to remirror the vg vgsync is used....( after executing vgcfgrestore)...

Since the disk has developed bad sectors that is the reason it is showing stale extents so replacing the disk is the only way out to oversome from this issue..

Re: Stale Errors in Logical volume

Torsten. — Fri, 07 Jul 2006 08:00:51 GMT

You wrote

"I find One of My disk is having bad sectors..
Which is in the Volume group

But is there any option to fix it & what is the use of vgsync command"

The option to fix the bad sectors is to replace the bad disk with the bad sectors on.

After replacing and restoring the LVM configuration, vgsync will copy the data to the new drive, it is synchronizing the mirror.

Best documentation:

http://docs.hp.com/en/5991-1236/When_Good_Disks_Go_Bad.pdf