topic Re: replace a mirror in Operating System - HP-UX

replace a mirror

michael Fischer_1 — Tue, 19 Feb 2002 11:16:32 GMT

Dear colleagues,

Short question: I'd like to replace a mirrored disk (/dev/dsk/c1t0d0; vg01) with lvol1 and lvol2 on it. What are the best steps to suspend the mirror, replace the disk, and re-establish the mirror?

Regards!

Mischa

Re: replace a mirror

Vincent Farrugia — Tue, 19 Feb 2002 11:24:22 GMT

Hello,

This has already been asked before. Follow this link please:

http://forums.itrc.hp.com/cm/QuestionAnswer/0,,0xf68cee3e323bd5118fef0090279cd0f9,00.html

HTH,
Vince

Re: replace a mirror

Sanjay_6 — Tue, 19 Feb 2002 13:38:41 GMT

Hi Mischa,

You don't have to do much. If this is a how-swap disk, do this,

Remove the disk from the cabinet, wait for a few minutes, plug the new disk in. wait for a couple of minutes. do a vgcfgresore for the disk,

vgcfgrestore -n vg01 /dev/rdsk/c1t0d0

activate the disk in the vg,

vgchange -a y /dev/vg01

sync the mirror,

vgsync /dev/vg01

Once the vg has been synced, do a vgdisplay to make sure the lv's have been mirrored correctly,

vgdisplay -v /dev/vg01

Here is a link from itrc to help you out,

http://us-support2.external.hp.com/cki/bin/doc.pl/sid=f30b7d48134ef3f384/screen=ckiDisplayDocument?docId=200000058036738

Hope this helps.

Regds

Re: replace a mirror

michael Fischer_1 — Tue, 19 Feb 2002 14:07:18 GMT

Thanks Sanjay

You helped me a lot! First I thought its necessary to do a "lvreduce", replace the disk and then do a "lvextend". But after your answer, this seems not to be necessary...

Regards!

Mischa