When creating snapshots " error-- disks do not belong to the same volume group"

[jose da silva]

When we extended a clustered volumegroup " HP-UX 11i v3" the snapshots now keep on failing , error doing vgchid says " do not belong to the same volume group".
Originaly we had no problems creating snapshots for backup purposes " see attached file" until we added a new LUN to extend the volume group.

Is there a workaround this problem without having to delete the current Volume group and create it with a large LUN then restore the data?

Please advise

[Jan Soska]

hello Jose,
On EVA's you can create shapshot only on the same disk group as your original data.
Maybe you should try creting snapclone - it goes to different group (and takes much more time - full copy of original)

Jan

[jose da silva]

Hi Jan

Thanks for the good advice. I will check the EVA's configuration and give feedback.

Best Regards,
Jose da Silva

[Torsten. · Accepted solution]

It's always a problem with duplicated threads, see

http://forums.itrc.hp.com/service/forums/questionanswer.do?threadId=1440035

[jose da silva]

Hi All

Yes it seemed that I misstakenly have duplicated the same thread. Sorry.

Kind Regards,
Jose

[jose da silva]

Hi All

The solution to the problem was to execute vgcfgbackup to the vg in question. It seemed that after I extended the vg and applied the vgcfgbackup, the lvm structures were later altered and the cmd vgcfgbackup was not applied.

THANKS to everyone concerned.

[jose da silva]

Hi All

As per my previous reply the cmd vgcfgbackup had to be done after changes on the lvm structure.

THANKS to ALL