Thanks, for now I leave it as it is, then, as I am saving up for a NAS Tera drive.
Once I get it I will back up everything there, now I don't have any support were to put 300+ Giga of data;
as I want a NAS drive there is no point in wasting 30 or 40€ already allocated to the NAS for a standard HD that then I won't do anything with it...