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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.mel.connect.com.au!news.mira.net.au!news.vbc.net!samba.rahul.net!rahul.net!a2i!bug.rahul.net!rahul.net!a2i!in-news.erinet.com!ddsw1!news.mcs.net!chi-news.cic.net!news.ind.net!Ares.Manchester.EDU!usenet From: seh%staff@manchester.edu (Stephen Hepner) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: SCSI card Date: 11 Sep 1996 14:35:27 GMT Organization: Manchester College Lines: 35 Message-ID: <516ing$1f0@Ares.Manchester.EDU> References: <Pine.SOL.3.93.960903215141.13825B-100000@bmec.hscbklyn.edu> <MICHAELV.96Sep9090827@MindBender.HeadCandy.com> NNTP-Posting-Host: acnar.manchester.edu X-Newsreader: WinVN 0.99.7 In article <MICHAELV.96Sep9090827@MindBender.HeadCandy.com>, michaelv@MindBender.HeadCandy.com says... > >In article <50muo4$a1@anorak.coverform.lan> brian@awfulhak.demon.co.uk (Brian Somers) writes: > > David Zakai (zakaid99@hscbklyn.edu) wrote: > > : 1. Are there still significant incompatibilities when using > : a PCI-based card (like Adaptec AHA-2940 or AHA-2920) instead > : of ISA-based cards like Adaptec AVA-1522B ? > > I've just put my SCSI disks on a 2940W (instead of a 1542B). I'm > getting occasional problems w/ the disks - nothing that a SCSI reset > doesn't cure (the OS sends this after a bit of "disk timed out" > complaining). I suspect that I'm just trying to drive the disks too > fast, so I can't really complain about the OS itself. > >Doubtful, unless you have _really old_ drives. It sounds more like >you have marginal cabling and/or termination. > Im having simular disk problems also (with a 2940). I have 2 of the Micropolis 4221AV drives on that controller and when I get really intensive disk usage, I get timeouts and bus resets (usally resets the machine too!). I have now tried 2 different controllers, 3 different (known good) cables, checked termination, rearanged the drives, etc w/o success. The only things that I havnt replaced are the 2 drives but they had been working fine w/o problems for about a year now on a 1542C controller. Any ideas/suggestions? Stephen Hepner Manchester College