From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Richard Rhodes >Since I have experienced disk subsystem crashes with loss data, I couldn't >ever use just >one disk system. I think I'd have to have separate disk systems for the >primary pools and >copy pools (or tape), and maybe even a third subsystem for the db and >staging pools.
You want to avoid all single points of failure when possible. However, I'd be inclined to keep the db and log volumes on local disk (controller-mirrored, of course. It's hard to beat disk access speeds from the local bus if you buy the right controller and disk.) A couple of 72GB local disks (mirrored) gives plenty of room for the OS and the TSM db volumes and TSM log volume copies, and a third 72GB local disk for the OS's swap/paging space, the TSM log volumes, and TSM db volume copies. >I've been called paranoid . . . but it comes from experience. Just because you're paranoid doesn't mean they're not out to get you. -- Mark Stapleton
