Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2.fluke 9/24/84; site vax3.fluke.UUCP Path: utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!vax135!cornell!uw-beaver!fluke!corey From: corey@fluke.UUCP (Corey Satten) Newsgroups: net.micro.att Subject: Re: 7300 upgrade info? Message-ID: <1526@vax3.fluke.UUCP> Date: Wed, 6-Nov-85 12:30:56 EST Article-I.D.: vax3.1526 Posted: Wed Nov 6 12:30:56 1985 Date-Received: Thu, 7-Nov-85 06:45:50 EST References: <1200002@fthood> Organization: John Fluke Mfg. Co., Inc., Everett, WA Lines: 38 > > I would like to hear from anyone who has upgraded a AT&T Unix PC 7300 > (RAM or hard disk). > > I hear rumor that the new Tandon AT clone has an option for a half height > 40 meg drive with an average access time of 40ms. > > o Has anyone seen a 1/2 height with 40ms access time? > > Thanx > > Emmet P. Gray > {pur-ee,ihnp4}!uiucuxc!fthood!egray I have been running with the Microtek (Tandon) 50 meg 1/2 height drive for about 1 week now. It is remarkably faster. My benchmarks indicate that the difference between real time and sys+user time is exactly half of what it was before (with the 80ms drive I guess). I notice about 20-30% overall speedup on a 1meg system. It's also somewhat quieter. I did the replacement myself. The hardest part was finding the screws to get the machine open (2 under the keyboard and 2 in the back - then pry forward on the plastic in the front to clear 2 molded catches). I do notice that the number of incidents reported in /usr/adm/unix.log has increased with the new disk, but I've had no hard errors (more than I can say for the Toolin 40 meg I had before.) The AT&T folks say that incidents in /usr/adm/unix.log are normal so I'm ignoring it. With these changes, I find the unix-pc about the same speed as a diskless SUN 50/2 running 4.2BSD. -- ******* Corey Satten; John Fluke Mfg. Co MS 223B; PO Box C9090 Everett WA 98206 {uw-beaver,decvax!microsoft,ucbvax!lbl-csam,allegra,tikal}!fluke!corey (206) 356-5058