2 VG's on 1 harddisk ?

[schleife]

Hi,
is it possible to create 2 or more volume-groups on 1 hard-disk?
My Problem: I want to clone a machine with 4 harddisk's
(4 * 9 GB) and 4 VG's (rootvg, vg1,vg2,vg3)
to a new machine with only 1 hard-disk (36 GB).
Normally i woud make 1 mksysb and 3 savevg's.
Is it possible to make a restvg on the new machine?

Thank's

 

[Guest_imported]

in AIX, i don't think it's possible.

you can have multiple PVs in a VG but not in reverse.

 

[vickersdc]

A volume group can only contain entire physical volumes, and a physical volume cannot be a member of more than one volume group.

Cheers,
Dave V.

 

[bi]

Schleife,

I'm not sure if you can do a restvg back to rootvg. Perhaps if you generated a vg.data file first and then edit it to exclude the name of the volume group so that when you restore it, it would not look for the old volume group?

I think you could probably do the backup and restore of the filesystems in the non-rootvg volume groups using the backup command and the restore command. This may be tedious if you have a lot of filesystems.

If worse comes to worse, and the systems are on a network, I suppose you could do an rcp, but that could take a long time.

And one final observation: depending on other hardware differences between the two systems (CPU speed, memory, etc.), the new system may appear slower to your users because the data will be all on one disk rather than spread out among four.