[PVE-User] LVM snapshot && VSS (into VM)

Dietmar Maurer dietmar at proxmox.com
Thu Jan 24 10:53:05 CET 2013

> I use LVM snapshot to backup, freeze and revert VM (each VM has its LVM
> on SAN).
> But....
> LVM snapshot freeze the VM at a specific time but into the VM the FS is not
> consistent.
> I know the modern FS use journal.. and a simple fsck solves the problem.
> But... db or ms exchange do not like this treatment.

Any reasonable database use transactions, so that is not really  a problem.

> I can activate VSS into MS VM before create LVM snapshot ? Or can I set the
> VM in stable state before activate it ?

We currently do not have a guest agent, so that is not possible. But this is a planned feature.

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