I have inherited the administration of an existing system. Point of worry: The raid 1 array is defined both in the MB Bios, and with mdadm. If I change the MB, and dont want to loos the data, do I need to keep the BIOS-defined array, or can I just rely on mdadm ? Cheers, Ron. -- One seldom sees a monument to a committee. -- http://www.olgiati-in-paraguay.org --