Re: [ovirt-users] Backup solution using the API
----- Original Message -----
From: "Blaster" <Blaster(a)556nato.com>
To: "Thomas Keppler (PEBA)" <thomas.keppler(a)kit.edu>, users(a)ovirt.org
Sent: Wednesday, December 10, 2014 8:06:58 PM
Subject: Re: [ovirt-users] Backup solution using the API
On 11/27/2014 9:12 AM, Keppler, Thomas (PEBA) wrote:
Now, before I go into any more hassle, has somebody else of you done a
live-backup solution for oVirt? Are there any recommendations? Thanks for
any help provided!
I've been looking for a similar scheme for the last year. It was not (really)
possible in the past as there wasn't any way to destroy a snapshot w/o
shutting down the VM. Is this still the case, or are snap shots fully
implemented now?
Basically, I'd like to:
Tell VM to flush it's buffers
suspend VM
take snap shot of boot virtual disk
resume VM
You don't need to suspend the vm, qemu can create live snapshot. When the
snapshot is done, you don't care about future io, it will simply not
included in the backup.
backup the virtual boot disk from the Hypervisor using standard
commands
(tar, cp, whatever)
You can by attaching the snapshot to another vm
destroy the snapshot
You can in ovirt 3.5.1 - we do not depend any more on future libvirt features.
Adam, can you confirm?
This would at least give some BMR capabilities of your VMs.
Ideally, I'd also like to be able to create a snapshot from within the VM, do
You can do this "within" the vm by using the engine REST API. But this can
be fragile - for example, if the vm pauses, your backup tool within the vm
will never complete :-)
a yum update, see if I like it or not, if I do, then destroy the snap
shot.
Possible in 3.5.1 using REST API
If I don't, I want to promote the snapshot and boot from that,
then destroy
the "original".
Same
Nir