topic Re: Problem when mirror vg00 in Operating System - HP-UX

Problem when mirror vg00

Ryan Gu — Wed, 14 Sep 2005 10:19:44 GMT

Somebady forgot use -B on pvcreate command when doing mirror on vg00.

So, lvlnboot shows the alter disk is nonboot disk.
/dev/dsk/c1t6d0 (0/0/2/0.6.0) -- Boot Disk
/dev/dsk/c2t6d0 (0/0/2/1.6.0)

How can I resolve this problem? I don't like to remirror the vg00.

Re: Problem when mirror vg00

DCE — Wed, 14 Sep 2005 10:23:37 GMT

Jason,

I believe you will have to unmirror, vgreduce and start over.

Dave

Re: Problem when mirror vg00

melvyn burnard — Wed, 14 Sep 2005 10:26:09 GMT

Using the -B option when doing a pvcreate reserves the boot area on the PV.
If this was not done, there is no way to fix this without redoing a pvcreate -B.
This means:
unmirror the disk
vgreduce
pvcreate -B (and possibly use the -f option)
vgextend
create the mirrors again

Re: Problem when mirror vg00

Fabio Ettore — Wed, 14 Sep 2005 10:35:03 GMT

Hi Jason,

I think all people already answered with the best direction to solve your problem. Infact no possibilites to get your disk bootable if before it was not initialized by pvcreate -B.
You has to recreate the LVM structure.

Please assign points if people helps you because your 15/54 about points assigned is not so good.

Best regards,
Fabio

Re: Problem when mirror vg00

Torsten. — Wed, 14 Sep 2005 10:35:24 GMT

Hi Jason,

you have to remirror the disk, because "-B" reserves additional space on disk.
Please unmirror and recreate using pvcreate -f -B ...

Re: Problem when mirror vg00

Doug O'Leary — Wed, 14 Sep 2005 10:35:53 GMT

Hey;

Just to add my $.02; you have no choice but to reduce the mirrored disk out and redo it.

Doug

Re: Problem when mirror vg00

Ryan Gu — Wed, 14 Sep 2005 10:45:42 GMT

THX for all your reply. I know what a great mistake I have done.

I will follow your advice to remiroor the vg00.

THX your all again.

Re: Problem when mirror vg00

Devender Khatana — Wed, 14 Sep 2005 23:15:36 GMT

Hi,

As suggested by many others earlier the only option left is to recreate mirror.

Cross check the action with attached procedure before activity so that it is not required to repeat it again.

HTH,
Devender