[fedora-virt] What version did Live Snapshots get introduced in?

[Andrew Cathrow]

----- Original Message -----
> From: "Cole Robinson" <crobinso at redhat.com>
> To: "Scott Baker" <bakers at canbytel.com>, "Fedora Virt" <virt at lists.fedoraproject.org>
> Sent: Thursday, October 10, 2013 9:49:53 AM
> Subject: Re: [fedora-virt] What version did Live Snapshots get introduced in?
> 
> On 10/09/2013 04:52 PM, Scott Baker wrote:
> > What version do I need to support live snapshots? I'm seeing:
> > 
> > virsh snapshot-create-as Test123 snapshot1 "before yum upgrade"
> > --disk-only --atomic
> > 
> 
> What happens if you run that command? If virsh supports those options and
> doesn't throw an error, then your versions are new enough :)
> 
> Though if you don't know, using disk only snapshots as to try something and
> then rollback or merge is not trivial, since snapshot-revert and
> snapshot-delete are not wired up so you have to do it all by hand.
> 
> > Compiled against library: libvirt 0.10.2
> > Using library: libvirt 0.10.2
> > Using API: QEMU 0.10.2
> > Running hypervisor: QEMU 0.12.1
> > 
> 
> Are you using RHEL/CentOS? Not sure what versions there, but for Fedora you
> need Fedora18 and later.

Judging by the version of QEMU it sounds like it's RHEL/CentOS.
There qemu version in RHEL 6.x doesn't include live snapshots, that was added well after 0.12 and wasn't backported.
If you're running RHOS or RHEV on top of RHEL 6 they come with a different version of qemu that has more features including livesnapshot and storage migration.
I'm not sure if those packages are rebuilt by CentOS.


> 
> - Cole
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