I have a Windows Storage Server 2003 running on 3x 500GB SATA HDD in a RAID 5 array on a PERC 5/i card. The problem is we need more storage space, and therefore I was planning on buying 4x 1TB drives.

The outcome I wanted was a raid protected multi terabyte virtual drive, as there's plenty of ram in these servers to act as cache. I can generate some images if you're interested in seeing what I'm ...