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Path: sserve!newshost.anu.edu.au!munnari.oz.au!bunyip.cc.uq.oz.au!harbinger.cc.monash.edu.au!msuinfo!agate!howland.reston.ans.net!pipex!sunic!EU.net!uunet!rwwa.com!not-for-mail From: witr@rwwa.com (Robert Withrow) Newsgroups: comp.os.386bsd.misc Subject: Re: SCSI bus hangs -- Help needed Date: 13 May 1994 11:27:23 -0400 Organization: R.W. Withrow Associates Lines: 32 Message-ID: <2r068r$2es@meatball.rwwa.com> References: <2qrksr$7vu@meatball.rwwa.com> Reply-To: witr@rwwa.com NNTP-Posting-Host: meatball.rwwa.com In article <2qrksr$7vu@meatball.rwwa.com>, witr@rwwa.com (Robert Withrow) writes: |> When the bus hangs, all devices have their access lights off, the |> AHA his its light on. If anyone cares: Being in a hurry, I made several changes and the problem went away. Normally, I would change one thing at a time, but, like I said, I was in a hurry. Below, I list the changes I made: 1) I replaced the AHA with an older one I keep as a spare. 2) I *inserted* the the ``synchronous negotiation'' jumper in the aha. 3) I removed the terminator power jumper from two of the hard drives. 4) I removed and reinserted all of connectors into all of the drives. If I had to guess, I bet #2 was the thing that fixed the problem. Perhaps this should be a FAQ answer? (Assuming this is a requirement)... The system has compiled X11 three times as well as done all sorts of other things including all of the drives (cdrom, disk, and tape) for three days now without a single hang. I'm happy. -- Robert Withrow, Tel: +1 617 598 4480, Fax: +1 617 598 4430 R.W. Withrow Associates, 319 Lynnway, Lynn MA 01901 USA, Net: witr@rwwa.COM