Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!ut-sally!husc6!think!ames!ucbcad!ucbvax!noah.arc.CDN!kenw From: kenw@noah.arc.CDN (Ken Wallewein) Newsgroups: comp.os.vms Subject: Pertec tape drives, ALL-IN-1 worries Message-ID: <615*kenw@noah.arc.cdn> Date: Sun, 12-Jul-87 11:52:46 EDT Article-I.D.: noah.615*kenw Posted: Sun Jul 12 11:52:46 1987 Date-Received: Mon, 13-Jul-87 01:21:27 EDT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 36 We need a 6250 bpi tabe drive on our uVaxII, mostly for backups. I know that sounds odd, but we have 700 mb of on-line storage. We are comsidering 3 tape drives: a DEC TU81+, a Pertec FS2000 with an Emulex TC03 controller (emulates TS-11), and a CDC Keystone III, with a Dilog controller. The DEC drive weighs in at $40K, and both of the others run around $15K. So much for the TU81+. The choice between the other two, however, is not clear. The CDC drive is slower, and seems to have an average record for reliability. Interestingly, I have been told that is the basis for the DEC TU81+. On the other hand, the Pertec has better speed, and an apparently quite good reputation, especially among OEMs of equipment for controls applications. However, I know of only one site which is using this drive on a Vax (11/750). I do *not* want the kind of problems it is giving them. Does this drive generally perform well in this environment, or would it be asking for trouble? I would very much appreciate hearing from anyone with related experience. Regarding ALL-IN-1: we are considering running it on our system for an outside client. We have quite a bit of spare CPU time (around 70% idle on average), and a fair amount of spare disk capacity on a fast CDC drive, so it seemed reasonable... until I was told about ALL-IN-1 bringing an 8600 with 12 mb of memory to its knees. Now I'm worried. Does anyone have experience with ALL-IN-1 on a uVaxII, even a big one? Responses to both of these questions would be much appreciated. Thanks in advance, /kenw A L B E R T A Ken Wallewein R E S E A R C H C O U N C I L