My little system here is only 5 pcs two running NT and the TLZ04 DDS1 does fine for that. Work I have the two NT4 boxen that are only pIII/550s 9gb mirrored pair for data and 4.3 gb for system stuff. Each has HP T20 and thats a good match. The remaining three servers backup to a 500$ quantum 10gb snap drive and that cascade copies to a P133 server that has a T20 on it. This is good for a business as the clients that do back up do it to the servers so they have live data for the next day. Simple ripple backup scheme with multiple copies of the same data for safety. KISS is still the operative mode word. Allison