[sheepdog] [Qemu-devel] [PATCH 0/3] sheepdog: support online snapshot from qemu-img

[Eric Blake]

On 04/25/2013 04:37 AM, MORITA Kazutaka wrote:
> Currently, we can take sheepdog snapshots of running VMs only from the
> qemu monitor.  This series allows taking online snapshots from
> qemu-img.

Is that even safe?  We specifically recommend that users NOT use
qemu-img on any image that is in-use by a qemu process, and instead only
use qemu monitor commands; since qemu-img may see inconsistent state,
and worse, any writes that qemu-img do may cause qemu to see
inconsistent state and cause corruption to the running guest.

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

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 621 bytes
Desc: OpenPGP digital signature
URL: <http://lists.wpkg.org/pipermail/sheepdog/attachments/20130425/3cbbfd84/attachment-0002.sig>