Hi folks, Sorry to say, but it seems that vol-clone is a little bit slow. To clone a 32G logical volume it took about 40 minutes. If I use dd instead dd if=/dev/storage/vol1.lv bs=64k of=/dev/storage/vol2.lv it takes just 10 minutes, and the system load is lower, too. libvirt is 0.8.2-1, as found in Debian Testing. Regards Harri