Thanks for the tip. I may end up investing in a RAID card that supports UEFI or upgrade the server board.
You mention creating another VD.
If I create the second VD in the RAID configuration console will it still be available for use in the OS?
I would think not if it is MBR.
I cannot create another MBR partition in the OS or would this work if the extra drive space was created as a VD?