[libvirt-users] Incremental Backups

[Thomas Stein]

On 2013-09-20 15:41, Davide Guerri wrote:
> Hi Thomas,

Hello Davide.

> I'm using this script which leverages external snapshots and
> blockpull: https://github.com/dguerri/LibVirtKvm-scripts

Yeah. I saw that and tried this already. But it needs to be adjusted to 
libvirtd-1.1.2 i think. Can you do this? I fiddled a litte bit around
but wasn't realy successfull.

hn LibVirtKvm-scripts # ./fi-backup.sh -b /opt/virt-backup-local/ -d 
serve.lordcritical
[DEB] qemu-img version '1.6.0' is supported
[DEB] KVM version '1.6.0,' is supported
[DEB] Snapshot for domain 'serve.lordcritical' requested
[DEB] Using timestamp '20130920-151742'
[DEB] Snapshotting block devices for 'serve.lordcritical' using suffix 
'bimg-20130920-151742'
[VER] Snapshot for block devices of 'serve.lordcritical' successful
[ERR] Error getting backing file for 
'/var/lib/libvirt/images/serve.lordcritical.bimg-20130920-151742'.

At the moment i try:

https://bitbucket.org/guilhemfr/virt-back

cheers
t.

> It's very simple and on ubuntu requires some tweaks on apparmour 
> configuration.
> 
> Hth
> 
> Cheers,
>  Davide
> 
> --
> 
> Davide Guerri
> http://about.me/davide_guerri
> 
>> On 20 Sep 2013, at 15:31, Thomas Stein <himbeere at meine-oma.de> wrote:
>> 
>> Hello.
>> 
>> Is someone performing incremental backups via libvirt for qemu/kvm 
>> machines? I'm still having a hard time to
>> find a nice procedure. I mean is it possible to make a full backup of 
>> an image on monday a do the next days of the week
>> incremental backups?
>> 
>> Another way could be mount the image and rsync its contents. Does that 
>> makes sense?
>> 
>> Also i read in qemu changelog:
>> 
>> ---
>> Support for a new block device background job. Started by 
>> drive-backup, it will backup a disk's content to a new file. Unlike 
>> drive-mirror, the new file will include the source disk's content at 
>> the time the backup job was started. Atomic backup of multiple disks 
>> is supported using the "transaction" QMP command.
>> ---
>> 
>> Is this supported by libvirt?
>> 
>> thanks and best regards
>> thomas
>> 
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