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Path: euryale.cc.adfa.oz.au!newshost.anu.edu.au!harbinger.cc.monash.edu.au!newsroom.utas.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!paladin.american.edu!gatech!newsfeed.internetmci.com!in2.uu.net!news1.digital.com!pa.dec.com!depot.mro.dec.com!rtnews.rto.dec.com!news From: Francis Hitchens <hitchens@epa001.enet.dec.com> Newsgroups: comp.unix.bsd.freebsd.misc Subject: Help: Adaptec 1540c/IBM DPES 31080 problem. Date: Wed, 14 Feb 1996 11:00:56 +0100 Organization: Digital Equipment GmbH Lines: 49 Message-ID: <3121B2D8.167E@epa001.enet.dec.com> NNTP-Posting-Host: epa015.mfr.dec.com Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Mailer: Mozilla 2.0b5 (X11; I; OSF1 V3.0 alpha) CC: hitchens Hi, I have been trying to install 2.1 from the Walnut Creek CD onto an IBM DPES 31080 SCSI II disk hanging off an Adaptec 1542c card. The Adaptec has the latest revision v2.1 microcode. The disk has an initial msdog partition of 500mb with the remaining space being split up into 3 bsd slices, 30mb root, 30mb swap, rest /usr. I have enabled the "Extended Translations" in the Adaptec bios to support the > 1 GB disk. What seems to happen is that the root partition gets written ok, but when it tries to write to the /usr partition the following error occurs and the adaptec controller hangs. The error occurs consistently 62% of the way through the installation. "sd0(aha0:0:0:) adapter not taking commands. frozen!" The only option then left is to reboot. I have been able to install onto a smaller 300mb SCSI I disc on the same adapter without any problem, so it does not seem to be a mechanical problem. A search of the 'http://altavista.digital.com' © found the following FAQ from an IBM www page. >How do I make my UNIX system recognize my new SCSI hard >disk drive? >To be compatible with many UNIX operating systems, the jumper >selecting Disable Target Initiated (T.I.) Synchronous Negotiations >must be in place. The following piece of information was also gleaned. >5.If JP7 is On, Target Initiated Synchronous Negotiation is disabled, > and then the Initiator is required to start a negotiation handshake > if Synchronous SCSI transfers are desired. > Note: On drives manufactured after 3/95, JP7 will be the LED > drive lines. Call your IBM representative for further information. Now my drive was manufactured after 3/95, so it seems I can't disable TISN's. Any ideas ? regards francis j. hitchens