Re: [libvirt] question of kvm

On 12/21/2011 11:01 PM, hero wrote: [please stick to plain-text emails on this list] Right now, we don't yet have a good solution for creating a new VM based on the contents of saved state from another running VM. Domain snapshots allow you to return to the state of an existing VM at the point where you took the snapshot, but in doing so, you give up the changes made since the last snapshot. With live snapshot, you can save the state of disks with minimal guest downtime, then clone those disks, and start up a new guest from the cloned disks, but the new guest will have to fsck the disks, so it isn't quite a perfect clone. There's work under way to support guest quiescing, so that a disk snapshot is more reliable. And I'd like to someday make it possible to clone a new guest starting from the RAM state of an existing running guest. Patches are welcome, both to qemu and libvirt. -- Eric Blake eblake(a)redhat.com +1-919-301-3266 Libvirt virtualization library http://libvirt.org