Originally posted by: rb7

I have a box with two disks

#lspv

1. lspv

hdisk0 00cb57ef381e4ad2 None
hdisk1 00cb57ef37524104 rootvg active

If I try to create new vg on hdisk0 it gives an error that

1. mkvg -y vg1 hdisk0

0516-1398 mkvg: The physical volume hdisk0, appears to belong to
another volume group. Use the force option to add this physical volume
to a volume group.
0516-862 mkvg: Unable to create volume group.
I know that I can use

#mkvg -f -y vg1 hdisk0

to create new volume group. But I am curious whether there was something on that disk before. Is there a way to find that? I am not sure if I can use importvg as I never exported that vg before.

lsvg shows only rootvg as its volume group. Any ideas?
#AIX-Forum

Originally posted by: SystemAdmin

You can use readvgda to find vgname, lv name.... in that particular PV
#AIX-Forum

Originally posted by: rb7

Thanks guys.

I was able to figure out the issue.

used readvgda, lquery, importvg, commands to see whats going on.
Thanks again.
#AIX-Forum

Originally posted by: SystemAdmin

Hi,

If you can than boot that system in maintenance mode , either from cd or NIM (It has to be same level or higher oslevel than existing ), than select option boot without mounting filesystem, you can list lv's there. verify if you have hd2,hd5,hd9var or other data lv's which you are aware of.
#AIX-Forum

Originally posted by: SystemAdmin

or you could also try

lqueryvg -At -p hdisk0

similar to readvgda but concise.

r/
R
#AIX-Forum

Originally posted by: SystemAdmin

you can perform

1. importvg -y vgname pvname

then you can see the data exists in the physical disk or not
again you can export the disk

1. varyoffvg vgname
2. exportvg vgname

so that returns to the normal position
#AIX-Forum

Originally posted by: SystemAdmin

you can perform

1. importvg -y vgname pvname

then you can see the data exists in the physical disk or not
again you can export the disk

1. varyoffvg vgname
2. exportvg vgname

so that returns to the normal position
#AIX-Forum