HP i think you have.
If you click on HP System Tools, Array Utlities, it will open up IE and give you a status of the array. IF it was built before, and you lost a drive, you can see the drive that is not configured in a blinking red status. You can pull the drive the out, push a new drive in and it should auto rebuild it. It takes hours to rebuild a drive and does slow the machine down.. so beware.
