topic vgremove in Operating System - HP-UX

vgremove

Ong Chin Soon — Wed, 09 Oct 2002 04:49:50 GMT

Hi,
Recently I've successfully remove the logical volume and the next step is to remove my volume group (which consists of 2 harddisks). But I get the following error message when I try to remove the vg :

vgremove : Volume group "/dev/vg04" still contains more than one physical volume path
vgremove : Couldn't remove volume group "/dev/vg04"

Any idea ? Thanks!

Re: vgremove

Animesh Chakraborty — Wed, 09 Oct 2002 05:05:13 GMT

Hi,
I think best way to remove vgs is to do a vgexport
#vgchange -a v vg04
#vgexport -v /dev/vg04

In your case do
vgreduce /dev/vg05 /dev/dsk/cxtydz
then do vgremove.

Re: vgremove

Michael Tully — Wed, 09 Oct 2002 05:55:54 GMT

Try:

# vgchange -a n /dev/vg04
# vgexport /dev/vg04

If you wish to re-use these disks into a different volume group later on you must 'pvcreate' them.

# pvcreate -f /dev/dsk/c1t2d0 (example)

There is no need to do 'vgreduce' at all.

Re: vgremove

Animesh Chakraborty — Wed, 09 Oct 2002 06:17:19 GMT

Hi Micheal
The question author talking about vgremove not vgexport
command and
Before removing a volume group, two steps are necessary:

1. Remove all the logical volumes belonging to the group by
using the lvremove command (see lvremove(1M)).

2. Remove all but one physical volume belonging to the volume
group by using the vgreduce command (see vgreduce(1M)).

Re: vgremove

Michael Tully — Wed, 09 Oct 2002 06:43:58 GMT

The easiest and quickest method to remove a volume group is using the 'vgexport' command. If you wish to reduce particular volumes and then remove the group, sure use 'vgreduce/vgremove'. The only advantage of this method is that each 'VGID' is removed from the LUN header, 'vgexport' does not.