[CentOS-virt] KVM online backup images

Tue Nov 27 11:23:54 UTC 2012
Rudi Servo <rudiservo at gmail.com>

I don't believe that Centoss yet capable of such feature, live backup is 
recent and FAIK its available on Fedora 17/18.
To workaround this issue I use DRBD and LVM snapshot.

This feature is a must have since it's capable to snapshot disk-only 
(ie. qcow2), making easier to rsync and copy a entire disk without 
having the hole storage allocated or having big lvm's back and forth.

Hope I helped

On 11/27/2012 07:45 AM, Andry Michaelidou wrote:
> Hello to you all!
> We are implementing here at the University KVM virtualization for our 
> servers and services and i was wondering if anyone try to 
> automatically backup images.
> I am actually using logical volumes for the VM guests. All virtual 
> clients are installed in their LVM logical volume. We are already use 
> IBM TSM for backup as we used to when we had physical machines, ie 
> install client in OS and manage files and data backup.
> I want to have an image backup additional to files backup, but i want 
> to take the image online, without pause or suspend the VM guests.
> Did anyone try to create image backups online? What about 
> http://wiki.qemu.org/Features/Livebackup?
> Can you please advise?
> --
> Andry Michaelidou Papa | IT Systems Administrator|Department of 
> Computer Science| University of Cyprus
> Tel: +357.22.892734 | Fax: +357.22.8927231 | http://www.cs.ucy.ac.cy
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