topic Re: fix stale LV in Operating System - HP-UX

fix stale LV

S.K. Chan — Fri, 02 Nov 2001 18:50:38 GMT

Quick one ..

I got /dev/vg00/lvol3 mounted on / and lvdisplay -v on that LV tells me it's stale. I tried lvsync and it came back with IO error.
vg00 got 2 disks (mirrored)

lvdisplay -v shows all LEs are current except one LE (current on 1 disk and stale on the mirrored disk).

what's next ??

Re: fix stale LV

Patrick Wallek — Fri, 02 Nov 2001 18:53:49 GMT

Hmmm.....Bad spot on the disk perhaps?

I would go ahead and place a hardware call and replace the suspect disk. If one LV has stale extent(s), then chances are the rest will follow soon.

Re: fix stale LV

Sanjay_6 — Fri, 02 Nov 2001 18:56:23 GMT

Hi Chan,

you may have a bad block on the disk. Do a dd on the disk on lv on which the stale extend is available and you may find out if the disk is a problem. By default i think reloaction is off for vg00/lvol3 (root).

dd if=/dev/vg00/rlvol3 of=/dev/null

you should get

some_number+0 blocks in
some_number+0 blocks out

hope this helps.

Re: fix stale LV

Sanjay_6 — Fri, 02 Nov 2001 18:57:33 GMT

Hi Chan,

Here is a thread from ITRC on fixing stale mirror extents.

http://us-support.external.hp.com/cki/bin/doc.pl/sid=cea1e7cf027913c86d/screen=ckiSearchResults?mode=id&searchString=DFQKBCA00000210

Hope this helps.

Regds

Re: fix stale LV

Craig Rants — Fri, 02 Nov 2001 18:59:13 GMT

I agree with Patrick, just get it replaced, especially if it is a mirror disk. I have a process this type of thing if you want...

Good luck.

C

Re: fix stale LV

Michael Tully — Fri, 02 Nov 2001 19:03:39 GMT

Hi,

Before replacing your disk, and if the thread that Sanjay has added does not do the job, this is an opportune time to make sure that you have that ignite tape up to date.

# make_tape_recovery -x inc_entire=vg00 -I -v -a /dev/rmt/0mn

-Michael

Re: fix stale LV

S.K. Chan — Fri, 02 Nov 2001 19:07:25 GMT

Thanks all !!