On Thu, May 28, 2015 at 10:33:48AM +0300, NoxDaFox wrote:
> To create the snapshots I'm using the libvirt command snapshotCreateXML
> with no flag set. Does libvirt support consistent snapshotting or shall I
> rely on QEMU backup new feature only?
According to: http://wiki.libvirt.org/page/Snapshots
virDomainSnapshotCreateXML is only consistent if the guest is paused
during the operation.
The new qemu feature is called drive-backup
(http://wiki.qemu.org/Features/IncrementalBackup). Unless things
changed recently, it is not exposed through libvirt, so the only way
to use it is by sending qemu monitor commands
This is all pretty bleeding edge. I still think you'd be better off
just ignoring snapshots that fail and moving on to the next one.