On 10/12/2009 06:17 PM, Grant McWilliams wrote:
>
> On Mon, Oct 12, 2009 at 5:48 AM, Dennis J. <dennisml@conversis.de

> <mailto:dennisml@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?

I may be wrong about this but isn't running KVM on top of the Xen
hypervisor a problem? Maybe this has changed but I thought in order to be
able to use KVM you first have to disable the Xen hypervisor and boot into
the regular Kernel.

Regards,
  Dennis