CentOS virt - Apr 2012 - proper way to snapshot

Hi,

While there are a few howtos floating around, what is the standard way to
snapshot guests?

I went through and converted from raw to pre allocated meta data qcow2 images
for this purpose.

Some howtos suggest to do an xml snapshot file as so;

<domainsnapshot>
   <name>UbuntuServer_10.10-16032011</name>
   <description>Snapshot of OS install and updates</description>
</domainsnapshot>

And then to run as so;

virsh snapshot-create UbuntuServer_10.10 UbuntuServer_10.10-ss.xml

Seems a bit over kill.

I was thinking more along the lines of this;

qemu-img snapshot -c $date $filename

qemu-img convert -f qcow2 -O qcow2 -s $date $filename $filename-$date
 
Or something like this.Anyways, hoping to see how you all are doing this for
best practice sort of thing.

- aurf


-------------- next part --------------
An HTML attachment was scrubbed...
URL:
<http://lists.centos.org/pipermail/centos-virt/attachments/20120426/958c80d7/attachment-0006.html>

On 26.04.2012 18:23, aurfalien wrote:
> Hi,
>
> While there are a few howtos floating around, what is the standard
> way to snapshot guests?
>
> I went through and converted from raw to pre allocated meta data
> qcow2 images for this purpose.
>
> Some howtos suggest to do an xml snapshot file as so;
>
> <domainsnapshot>
>    <name>UbuntuServer_10.10-16032011</name>
>    <description>Snapshot of OS install and
updates</description>
> </domainsnapshot>
>
> And then to run as so;
>
> virsh snapshot-create UbuntuServer_10.10 UbuntuServer_10.10-ss.xml
>
> Seems a bit over kill.
>
> I was thinking more along the lines of this;
>
> qemu-img snapshot -c $date $filename
>
> qemu-img convert -f qcow2 -O qcow2 -s $date $filename $filename-$date
>
> Or something like this.Anyways, hoping to see how you all are doing
> this for best practice sort of thing.
Hi,

I just use LVM snapshots; it's the fastest, most reliable way I could 
come with.

-- 
Sent from the Delta quadrant using Borg technology!

Nux!
www.nux.ro