I believe Promise uses something called FastTrak GUI which is a Windows utility. You can get RAID 0 or 1 with the TX2 but for RAID 0+ 1 you need the TX4. I've heard the striping makes it plenty fast... but my needs are solely for protection. I've ordered a TX2 in and I'll report back.

I really want to mirror all my drives. I have Ghost but it takes effort on my part.