Hi again, all -- ...and then Roman Mamedov said... % ... % And a very good point that Wols mentioned, the 1TB-disk member can be set as % --write-mostly, since the 2x500GB RAID0 is likely to overshoot the performance % of a single 1TB disk, even if its individual disks were slower. Not to mention % it has two independent head sets for the same amount of data. (If we're still % talking rotational here...) Thanks so much for all of the input! This sounds like the right way to go. I had completely forgotten the "strange magic" ;-) of RAID10 on just two drives by reordering the two partitions on the second drive, but I don't think that that applies here and I don't imagine it's worth the complexity of striping two mirrors, half of each of which are partitions on the 1T drive, so I'll just stripe [partions on] the two 500s. Thanks again & have a great day! :-D -- David T-G See http://justpickone.org/davidtg/email/ See http://justpickone.org/davidtg/tofu.txt