[fedora-virt] Current Status of LVM Snapshots & Libvirt

[Eric Blake]

On 08/25/2013 08:30 AM, Jorge Fábregas wrote:
> Hi,
> 
> What's the current status of LVM snapshots?  Can you
> create/revert/commit them with virsh? Or is this an out of band
> operation (I have to manually use lvcreate etc...)?

Currently requires out-of-band efforts.

> 
> I've never used LVM-based images mainly because you couldn't overcommit
> the storage subsystem but now, with the new thin-provisioning
> capabilities of LVM, I'm willing to give it a try.  That is, of course,
> *only* If I can still have all the nice snapshot capabilities I
> currently have with qcow2-based images :)
> 
> Thanks,
> Jorge
> 
> p.d I know you can create qcow2 overlays out of an LVM.  My question
> really is whether libvirt can use/manipulate native LVM snapshots these
> days.

Patches are welcome to add that functionality into libvirt.

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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