Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!mcsun!hp4nl!tuegate.tue.nl!rc6.urc.tue.nl!rwa.urc.tue.nl!rcbarn From: rcbarn@rwa.urc.tue.nl (Raymond Nijssen) Newsgroups: comp.unix.sysv386 Subject: Re: ISC 3.2/harddisk & floppy problems Message-ID: Date: 19 Jun 91 08:30:23 GMT References: <111@odiehh.UUCP> <0DRRHOB@geminix.in-berlin.de> <1991Jun10.214243.7594@abqhh.hanse.de> <113@odiehh.hanse.de> Sender: news@rc6.urc.tue.nl Reply-To: rcbarn@urc.tue.nl Lines: 47 gemini@geminix.in-berlin.de (Uwe Doering) writes: >rcbarn@rwc.urc.tue.nl (Raymond Nijssen) writes: >> >>The second problem, the one with the HD controller locking up under ISC >>is known to occur in combination with Western Digital's WD1006Vsr2 RLL >>controller; it contains a bug which only occurs if 2 drives are >>attached to it and if the HD device driver has the 'overlapped-seeks' >>feature enabled, like the one in ISC/ix has by default. It does not >>happen with ESDI. >Not so fast, please. That CCAP_NOSEEK fix may be a cure for some problems >people have with ISC's HD driver, but not for all. Sure, but the original posting was about lockups occurring when two drives were accessed simultaneously. As far as I know, this fix is only useful to circumvene a bug in some WD1006Svr2 controllers. >I had problems for months with the following HD/controller combination: >[...] >Adaptec 2322D ESDI controller >Fujitsu 2249E ESDI HD drive (320 MB formatted) >[ .... lots of detailed info omitted .... ] Hear! Hear! This is the degree of detail useful to all of us. > After experiencing all that, I don't have any other choice but to > suspect that this is a bug in ISC's HD driver. Maybe, maybe not: when I had troubles with my WD1006, I decided to go for Adaptec's 2372 rev. C. I tried 2 (well, actually 3, but one was DOA) of them, and both did not work as expected, each in a different way however. I was quite mad at Adaptec at that time, especially when I got piles of reactions from other people on the net who had similar experiences with this revision (rev. B seemed to work fine). Some months thereafter, it turned out that there was a bug in my C&T AMI clone-motherboard as my newly purchased Wangtek tape streamer controller caused the system to hang (even without panic message) under ISC, not under AT&T unix though. It might very well be that the Adaptec controllers were not to blame for the problems I had with them. -Raymond -- | Raymond X.T. Nijssen | Eindhoven Univ. of Technology | | raymond@es.ele.tue.nl | EH 7.13, PO 513, 5600 MB Eindhoven, The Netherlands | | "Don't put that on the wall in a tax-payer supported museum!" Pat Buchanan |