Yeah, Xen supports live migration as well (at least, libvirt supports live migration of xen backends: http://libvirt.org/migration.html http://libvirt.org/migra

Yeah, Xen supports live migration as well (at least, libvirt supports live migration of xen backends: http://libvirt.org/migration.html http://libvirt.org/migration.html). I would be interested in hearing why the big providers aren't apparently using it.