On Mon, Oct 12, 2009 at 10:30 AM, Dennis J. <dennisml at conversis.de> wrote: > 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: > > > > 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 > But once you have your XEN DomU config file converted to KVM you could in effect just reboot the Dom0 into a standard kernel and use KVM. Unless of course you're only moving one DomU to KVM then it wouldn't work. Grant McWilliams -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.centos.org/pipermail/centos-virt/attachments/20091012/63d18072/attachment-0006.html>