On Wed, Jul 17, 2013 at 12:49 PM, Steve Hill <[log in to unmask]> wrote:
> The release notes say that virtual machine live disk image snapshotting was
> introduced in Scientific Linux 6.2.  However, when I try it, I get a "not
> supported" error:
>
> # virsh snapshot-create-as outpost2 snap1 --disk-only --diskspec
> vda,snapshot=external,file=/var/lib/libvirt/images/outpost2-snap1.qcow2
> --atomic
> error: Operation not supported: live disk snapshot not supported with this
> QEMU binary
>
> I can't seem to find a lot of information about this through - can anyone
> offer advice?
>
> Thanks.

Start by updating to SL 6.4 with all the KVM updates? KVM is
interesting, but not mature, so any more difficult operations such as
snapshotting are likely to benefit from using the latest releases.