[CentOS-virt] Xen to KVM migration

Grant McWilliams grantmasterflash at gmail.com
Mon Oct 12 17:17:06 UTC 2009

On Mon, Oct 12, 2009 at 5:48 AM, Dennis J. <dennisml at conversis.de> wrote:

> Hi,
> I'm thinking about how to go about migrating our Xen VMs to KVM. Migrating
> the configuraton should be easy using the virsh dumpxml/define commands but
> what is the best way to transfer the (logical volume based) images without
> too much downtime for the guest system?
> Can rsync operate on logical volumes? If so I could potentially use "dd" to
> transfer an initial copy of the image to the destination host and then shut
> down the guest, rsync the logical volumes which shouldn't take too long as
> not much data has to be transfered thanks to the initial "dd" and then boot
> the guest on the new machine.
> Is something like this possible or would you do something different?
> Regards,
>   Dennis

Can't you just use the LV in place with KVM?

Grant McWilliams

Some people, when confronted with a problem, think "I know, I'll use
Now they have two problems.
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