In RAID 1 the second drive is not a second drive in Windows but mirroring behind the scenes in case one of the drives fail. Ask the machine's maker to supply a tutorial or document on how RAID 1 is implemented and used in this machine.
I have 2 500GB raid 1 HDDs. The one shows up but the other does not. It is listed in the BIOS, but not Computer and not even in Computer Management when you right click on Computer. Anyone know how to fix this?
It is an Alienware M17x with Windows 7 Ultimate