This is a cryptographically signed message in MIME format. --------------ms030600050407010304090606 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: quoted-printable Hi Soeren, thanks for sharing! I will look on this script right after upgrading to=20 7.1. It looks really useful. cheers, Jiri On 07/08/2015 09:36 PM, Soeren Malchow wrote:
Dear Chris,
It is not true, you can snapshot a machine, then clone the snapshot and=
export it for backup purposes after that you can remove the snapshot, a= ll on the live VM. However, you need newer versions of libvirt to do that, right now we ar= e using CentOS 7.1 and the libvirt that comes with it is capable of doing=
live merge which is necessary to achieve this.
But i have to warn you, we are experiencing a problem when removing the=
snapshots (the part is commented in the attached script) it sometimes kills virtual machines in a way that makes it necessary to put the hypervisor to maintenance and then restart vdsmd and libvirtd before yo= u can start that VM again.
There is a bug filed already and it is in progress
https://bugzilla.redhat.com/show_bug.cgi?id=3D1231754
I also have to add that i newer version of libvirt (on Fedora 20 with t= he libvirt preview repo) did not have that problem, so i am confident that=
this will be solved soon.
Last but not least there is a plan to be able to export snapshots right=
away for backup without having to clone them first, this is a huge step=
forward for the backup procedure in terms of time that is needed and th= e load on the storage and hypervisor systems.
I would really appreciate if you would help improving that script (we a= re not python developers), i will see that i make this a github project or=
something like that
Cheers Soeren
On 08/07/15 17:13, "users-bounces@ovirt.org on behalf of Chris Jones - BookIt.com Systems Administrator" <users-bounces@ovirt.org on behalf of=
chris.jones@bookit.com> wrote:
From what I can tell, you can only backup a VM to an export domain if=
the VM is shut down. Is a live VM backup not possible through oVirt? I= f not, why not? Most other virtualization tools can handle this.
If it is possible, how do I do it through the backup API? api.vms.myvm.export requires it to be shutdown so what would the alternative be?
Thanks.
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