I built a SBS 2003 Intel Server on a SE7500CW2 Intel mother board, back in 2004. Yes, this is an old server. This is a redundant system build on the RAID 1 through the on-board dual channel ATA 100 controller, utilizing Promise technology.
Yes, drive space has become scarce. I want to add a 500 GB EIDE drive for extra data storage. There is no longer any type of support for this retired board. I haven't worked with this board, or the RAID configuration in a long time.
I don't remember ( I will have to check), if I seperated out the drives, one per channel (meaning 1 drive per EIDE cable) or if they reside on the same channel (same cable). Either way, is it possible to add a third drive w/o interferring with the mirror set. I don't want to add to the existing RAID. I just want a seperate drive outside the mirror for storage.