[linux-lvm] Listing physical volumes in a volume group
Milan Broz
mbroz at redhat.com
Fri Aug 3 15:46:36 UTC 2007
Hi,
this will not help for using in script ?
(comma separated list of PVS & PV UUID in VG)
vgs --separator , --noheadings -o pv_name,pv_uuid <vgname>
Milan
--
mbroz at redhat.com
Steeve McCauley wrote:
> I would like to know if there is a canonical way to list the
> physical volumes in a volume group, specifically to extract
> the uuid for those PVs in a bash script. I am able to do
> something along the lines of,
>
> PVS=$(vgdisplay -vv 2>&1 | grep "PV UUID" | awk '{print $3}')
> PVUUID=$(pvs -o pv_uuid --noheadings /dev/sdx | awk '{print $1}')
>
> and then look for PVUUID in the list of PVS.
>
> for uuid in $PVS; do
> [ "$uuid" != "$PVUUID" ] && continue
> ...
> done
>
> but this relies on the output format of 'vgdisplay -vv' and
> I want to be sure that I will always get the expected result.
>
> Thanks,
>
> steeve
>
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