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Re: [Xen-users] Backup domU

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Subject: Re: [Xen-users] Backup domU
From: Steve Allison <xen-users@xxxxxxxxxxxxxxxxxx>
Date: Sat, 09 Jul 2011 21:58:55 +0100
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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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