[CentOS-virt] Xen to KVM migration
dennisml at conversis.de
Mon Oct 12 18:30:24 UTC 2009
On 10/12/2009 06:17 PM, Grant McWilliams wrote:
> On Mon, Oct 12, 2009 at 5:48 AM, Dennis J. <dennisml at conversis.de
> <mailto:dennisml at conversis.de>> wrote:
> I'm thinking about how to go about migrating our Xen VMs to KVM.
> the configuraton should be easy using the virsh dumpxml/define
> commands but
> what is the best way to transfer the (logical volume based) images
> 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?
> 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.
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