[libvirt] lvm storage pool destroy problem

[Umar Draz]

Hi Daniel,

my Virtual machines are running, so how I can stop the volumes?

Br.

Umar


On Thu, Dec 19, 2013 at 9:21 PM, Daniel P. Berrange <berrange at redhat.com>wrote:

> On Thu, Dec 19, 2013 at 01:54:19AM +0500, Umar Draz wrote:
> > Hi I am trying to stop the storage pool through php-libvirt api which is
> a
> > LVM volume group.
> >
> > when I tried to stop it I got error
> >
> > error: internal error Child process (/sbin/vgchange -aln mylvmgrp)
> > unexpected exit status 5:   Can't deactivate volume group "mylvmgrp"
> with 4
> > open logical volume(s)
> >
> > Then I tried throggh virsh command but the result remain same.
> >
> > *root at kvm02:~# virsh pool-destroy vms*
> > error: Failed to destroy pool vms
> > error: internal error Child process (/sbin/vgchange -aln mylvmgrp)
> > unexpected exit status 5:   Can't deactivate volume group "mylvmgrp"
> with 4
> > open logical volume(s)
>
> This indicates some process(s) are still using the logical volumes
> so it is preventingn you breaking those apps. This is expected
> behaviour.
>
> >
> > The same error also occured if I use direct vgchange -aln on my kvm host,
> > but then I tried
> >
> >
> > *vgchange -aly mylvmgrp*
> >
> > this time its worked
>
> That is a totally different operation -aly *activates* volumes which
> is the exact opposite of what 'pool-destroy' needs, which is to
> de-activate the volumes
>
> >
> >   14 logical volume(s) in volume group "mylvmgrp" now active
> >
> > 1) Now would you please help me? is this libvirt issue? or LVM?
> > 2) Is this possible virsh pool-destroy pool also run the vgchange -aly
> > instead of -aln
>
> AFAICT, there's no bug here. You just need to stop using the volumes
> before stopping the pool.
>
> Daniel
> --
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>



-- 
Umar Draz
Network Architect
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