I have now changed Drive 1(2TB) to Drive 0 position and added another 2TB at Drive 1 position and started the Snap 210 and it booted on GOS 5.2 both drives are visible as in the attached pics but are unassigned. On the Raid it shows me the last Raid MD1 as on second screen shot. I have two 2TB drives recognised by the GOS but unable to assign them to the RAID, I am sure someone out there has a solution, I would appreciate any helpful input