[ovirt-users] Live merge?

[The Austrian]

Hi Martijn

I am running up-to-date EL7 hosts and was also disappointed to find Live
Merge was not functional (yet).

As I understand it the live merge feature depends on some quite new
features in libvirt and qemu which are only available at the moment in the
Fedora virt-preview repo. More information at this link
http://www.ovirt.org/Features/Live_Merge.  As to be expected libvirt and
qemu packages provided in EL6 and EL7 will lag a bit behind upstream for
good reasons such as ensuring things are well tested and proven reliable. I
am sure Red Hat are very keen to get this much overdue feature into their
RHEV product so I don't expect the wait for updated EL packages will be too
long.

Regards
Paul

On Wed, Nov 12, 2014 at 11:55 PM, Martijn Grendelman <
martijn.grendelman at isaac.nl> wrote:

> Hello,
>
> The first thing the 3.5 release notes talk about is Live Merge of
> snapshots and I've been dying to try that out.
>
> Problem: I think my environment is completely up to date now, but the
> "Delete" link on VM snapshots remains greyed out when the VM is running.
>
> Going via "Storage" -> Domain name -> "Disk Snapshots", clicking
> "Remove" is possible  (UX inconsistency), but it stops with "Error while
> executing action: Cannot remove Disk Snapshot. At least one of the VMs
> is not down."
>
> What is needed, besides the following, to make live merge work?
>
> - oVirt Engine Version: 3.5.0.1-1.el6
> - Data Center Compatibility Version: 3.5
> - Host OS: RHEL - 6 - 6.el6.centos.12.2
> - KVM Version: 0.12.1.2 - 2.415.el6_5.7
> - Libvirt Version: libvirt-0.10.2-46.el6_6.1
> - VDSM version: vdsm-4.16.7-1.gitdb83943.el6
> - Live Snapsnot Support: Active
>
> VM has been restarted to make sure it's running on the latest qemu-kvm.
>
> Please advise, thank you in advance.
>
> Best regards,
> Martijn Grendelman
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