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Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!nntp.coast.net!howland.erols.net!newsfeed.internetmci.com!btnet!btnet-feed2!unlisys!cs.tu-berlin.de!zrz.TU-Berlin.DE!news-ber1.dfn.de!news-fra1.dfn.de!news-koe1.dfn.de!main.Germany.EU.net!Dortmund.Germany.EU.net!not-for-mail From: bs@Germany.EU.net (Bernard Steiner) Newsgroups: comp.unix.bsd.freebsd.misc Subject: Re: FreeBSD 2.1.5/EISA/AHA1740 not finding drives Date: 30 Dec 1996 23:29:38 +0100 Organization: EUnet Deutschland GmbH, Dortmund, Germany Lines: 22 Message-ID: <5a9foi$bfc@Germany.EU.net> References: <329B228D.167EB0E7@microware.com> <Pine.SUN.3.90.961126180822.23868B-100000@bighorn.accessnv.com> <57l3eb$hr0@uriah.heep.sax.de> <E1oxwG.Gy1@yedi.iaf.nl> <E38GKJ.Grq@obiwan.pmr.com> NNTP-Posting-Host: qwerty.germany.eu.net Xref: euryale.cc.adfa.oz.au comp.unix.bsd.freebsd.misc:33283 In article <E38GKJ.Grq@obiwan.pmr.com>, wayne@obiwan.pmr.com (Wayne Willcox) writes: |> I have a 2.1.5 system the is using 2 AHA1740's, has been for over a year. I (now) have a Mylex MAE486 running 32megs and an *nt*l 486DX4/100. The controller locks up whenever I read anything larger than, say, 8k from the disk in one go. This is sort of inconvenient for just about anything, including, but not limited to, running fsck. I have not yet got the newer BIOS from Mylex installed in order to look into the possibility of switching to WT cache instead of WB cache; simply disabling cache in the BIOS setup does not doe the trick, and slowing down things with all tricks from the BIOS and EISACONF doesn't yield any results, either. However, I *can* boot "sd(0,a)/kernel -C" and it runs just fine on the SCSI cdrom, until I do something with the disk, at which time the controller switches on its red light and refuses any further co-operation (even with software reboot, it refuses to talk to the BIOS again). Will try to try against an old pre-2.0 beta system sometime, or chuck out the DX4/100 and re-try with a DX2/66. Bernard