Yes, your wright! I know about that. As i mentioned, our machines are really working perfect (they can easily be a productive system) I am asking because our school does not have much money (in fact nothing) and i will go on with my lessons in hypervisors with xcp-ng. THANKS TO EVERYONE who works on this project - i like it!! P.S. If you need user tests in grater scale, we can do it (10 machines) and we have time.