I have a WIN 2000 server with 3 36GB SCSI drives set up in a RAID array. I have an 80GB WD EIDE/ATA drive that I installed, along with an ATA controller card. The controller card (Silicon Image SIL0680) can work as a RAID controller, or as a single drive controller. When I booted, Windows installed the drivers for the card, but the drive was not listed with the other drives in Computer Management. I re-booted and entered the RAID setup utility (F3). The card and drive were there and I was given the option to create a new set, but I don't know if I can create a RAID set with only one drive. Also, if I create a new set, will that impact the existing PERC set? The PERC set is the boot drive.