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RE: [Xen-users] How to Live Copy domU

To: <xen-users@xxxxxxxxxxxxxxxxxxx>
Subject: RE: [Xen-users] How to Live Copy domU
From: "Steffen Heil" <lists@xxxxxxxxxxxxxxx>
Date: Wed, 20 Sep 2006 01:36:30 +0200
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> I'm pretty new to Xen.  I'm running Xen on Debian Etch, on 
> AMD64 architecture.  I'm looking for suggestions on how to 
> copy a domU without shutting it down.  I would like to then 
> boot up the copy, and have both virtual domains running 
> simultaneously.  If anybody knows how to do this, please let me know.

It isn't natively supported by Xen.
BUT you can propably simulate it like this:

Have your original domU on a LVM volume.
White it is running, create a snap-shot.
Copy the snap-shot to a new volume.
Remove the snap-shot.

Run repairs on the new volume as it might be inconsistent. In that case you
can either trust the repair utility or redo the copy part.

Start the new domU on the new volume.


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