[CentOS-virt] KVM online backup images

[Andry Michaelidou]

Dear Rudi Servo,

So you actually have to power off VM guest to take the LVM snapshot and 
then synchronize the disk with DRDB.
Do you automated this procedure using a cronjob or anything similar? Did 
you restore an image with success?

Thank you all,

--
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

On 27/11/2012 13:39, Philip Durbin wrote:
> see also 
> http://fedoraproject.org/wiki/Features/Virt_Live_Snapshots#Live_backup 
> and http://www.redhat.com/archives/libvir-list/2012-July/msg00782.html 
> via http://irclog.perlgeek.de/crimsonfu/2012-10-24
>
> On Nov 27, 2012, at 6:23 AM, Rudi Servo <rudiservo at gmail.com 
> <mailto:rudiservo at gmail.com>> wrote:
>
>> 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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>>
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