> Does this only work for qcow2 images, or will it also work for
LVM
images?
If your root backing file is raw (I tested this just now, again) or LVM,
it should work just fine. And the overlays will _have_ to be qcow2
files.
All my VM images are raw format on LVM volumes (hope I'm using the right
terminology here). I don't use backing/overlay images. So this should work
for me.
I currently use LVM snapshots as part of my backup process. Does anyone see
any pros and cons of the active block commit method in this thread vs using
LVM snapshots (which are very quick to create)?