Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!husc6!hao!oddjob!gargoyle!ihnp4!cbosgd!mandrill!hal!ncoast!allbery From: allbery@ncoast.UUCP (Brandon Allbery) Newsgroups: comp.os.minix Subject: Re: xt hard disk driver Message-ID: <4502@ncoast.UUCP> Date: Fri, 11-Sep-87 19:21:51 EDT Article-I.D.: ncoast.4502 Posted: Fri Sep 11 19:21:51 1987 Date-Received: Sun, 13-Sep-87 09:53:44 EDT References: <1288@cognos.UUCP> <5890003@hplsdla.HP.COM> Reply-To: allbery@ncoast.UUCP (Brandon Allbery) Followup-To: comp.os.minix Organization: Cleveland Public Access UN*X, Cleveland, Oh Lines: 30 As quoted from <5890003@hplsdla.HP.COM> by ritchie@hplsdla.HP.COM (Dave Ritchie): +--------------- | >I had this happen also. I don't know what having write precomp turn on too | >early does, but check for that as well; I discovered that it was using a | >value of 128, while my ST225 data sheet says 256. (This is the starting | >cylinder for write precomp.) I added a line to change it in the wini.c | >I compiled into Minix. | | Try again.... write precomp starts at cylinder 300, not at 256, according | to the ST225 manual I have for the ST225 on my Ampro. +--------------- The test sheet that came with my ST225 (shows results of factory tests) shows at the top: DATA DATA WRITE REDUCE PARK STEP HEADS CYLS PRECOMP WRT CUR CYL PULSE CYLS CYLS RANGE ------------------------------------------------ 4 0-614 256-614 N/A 670 5-200 US I can say no more about it; the tech spec sheet doesn't talk about write precomp as far as I can see. -- Brandon S. Allbery, moderator of comp.sources.misc {{harvard,mit-eddie}!necntc,well!hoptoad,sun!mandrill!hal}!ncoast!allbery ARPA: necntc!ncoast!allbery@harvard.harvard.edu Fido: 157/502 MCI: BALLBERY <> All opinions in this message are random characters produced when my cat jumped (-: up onto the keyboard of my PC. :-)