Can you use a single drive in an Xserve RAID?

Dumb question of the new year... I want to use just a single drive in my XServe RAID and I can't seem to figure out how to make it active. Here is what I am looking at: [b]Upper Controller[/b] 1 - 250GB - A 2 - 250GB - A 3 - 250GB - A 4 - 250GB - A 5 - 250GB - Hot Spare For A 6 - 750GB - Not Used (But RAID Admin is seeing them as "spare") 7 - 750GB - Not Used (But RAID Admin is seeing them as "spare") [b]Lower Controller[/b] All 7 drives are 500GB in a RAID 5 I want to use each of the 750 GB drive indivdually, as single drives. I can't see a way in RAID Admin 1.5.1 to let me do this. I found some old documentation on Apple's website about using single disks, but it referenced the old RAID Utility software which I am guessing was replaced my RAID Admin. Right now, if this is not possible, I could put the two 750 GB drives in the XServe itself. The downside of this is that it would kill off my backup hard drive for my server, but I could image that to another location I guess. Thanks in advance for your help! Eric