I want to have two hosts that are running a Xen hypervisor, with each having three servers running inside as guests. I want to be able to migrate one or two of the guest servers from one host to another in case of a lack of power (an electricity change to a generator for instance), and then turn off the host that I migrated the guest servers from.

What I would like to know is if it is possible for me to do this using vblade or another technique. I'm hoping to solve a power problem by implementing this idea if possible.