Re: [Xen-users] Backup domU

[Steve Allison <xen-users@xxxxxxxxxxxxxxxxxx>]

On 09/07/2011 10:42, Simon Hobson wrote:
> Steve Allison wrote:
>
> > > The backup is also on the same disks as the live system.
> > I don't know why you make this point, as, at least in this thread, 
> > the target of the backup is not mentioned and is trivial to have it 
> > point to another system.
> I wasn't aware LVM could create a snapshot which puts a complete copy 
> of the volume on another disk. In fact, AUIU, a snapshot doesn't 
> actually copy the whole volume, it creates a COW setup which saves any 
> blocks subsequently written to.
Exactly. So you put the LVM into a snapshot state, and "backup off the 
snapshot, nice and clean then destroy the snapshot when finished".
--
May the ping be with you ..


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