Actually, putting aside "need" vs "what I have", I'd like to get further answers along the same line. I have [and certainly don't necessarily need to have] an Adaptec U160 card on 32bit/33mhz pci bus desktop board using XP. In a garage sale last month I managed to purchase -- for next to nothing -- 2 new-in-the-box Cheetah 15k.3 drives, U320 18G and 36G. I had previously used old 10K and newer 10K3 U160 Quantum/Maxtor drives for o/s, apps, games and photoshop/photoimage 'desktop", but took the opportunity to give those 10k HDDs to someone who actually needs scsi for a volunteer organization's server. Data and image storage go on plain vanilla large capacity 7200 and 5400 rpm IDE drives.
I am getting ready to migrate from tried and true CUSL-2 to newer P4 based board but want to keep my new and very reliable scsi HDDs. I don't expect to go to anything other than another 32bit/33mhz pci type board at this point-- can't justify expense. I also use my system for gaming, but that hardly stresses the HDDs.
How much of a hit might I be taking by using the 2 U320 drives on the single-LVD-channel Adaptec 19160 card? Given my usage, I figure that it isn't much practical impact but I also know that I could use some expert advice. Is ther any reasonable step I can take to better utilize the HDDs? My brother is a webpage designer and has already given me the appropriate you-don't-deserve-to-or-need-to-have-15k.3 speech so you can skip that part, please.