.. or even ignore that it is xen, basically this command moves the content of an logical volume to another server, reducing bandwidth using gzip compression.

prerequisites:

run

root@src:# dd if=/dev/vg/disk bs=4096 | pv | gzip -1 | ssh -p2222 targethost.org "gzip -dc | dd of=/dev/vg/disk"

on your target machine you may want to: