From owner-freebsd-current  Tue Jul 18 20:31:28 1995
Return-Path: current-owner
Received: (from majordom@localhost)
          by freefall.cdrom.com (8.6.11/8.6.6) id UAA00904
          for current-outgoing; Tue, 18 Jul 1995 20:31:28 -0700
Received: from gndrsh.aac.dev.com (gndrsh.aac.dev.com [198.145.92.241])
          by freefall.cdrom.com (8.6.11/8.6.6) with ESMTP id UAA00898
          ; Tue, 18 Jul 1995 20:31:22 -0700
Received: (from rgrimes@localhost) by gndrsh.aac.dev.com (8.6.11/8.6.9) id UAA06086; Tue, 18 Jul 1995 20:31:30 -0700
From: "Rodney W. Grimes" <rgrimes@gndrsh.aac.dev.com>
Message-Id: <199507190331.UAA06086@gndrsh.aac.dev.com>
Subject: Re: scsi problem solved
To: dufault@hda.com (Peter Dufault)
Date: Tue, 18 Jul 1995 20:31:30 -0700 (PDT)
Cc: paul@freebsd.org, FreeBSD-current@freebsd.org
In-Reply-To: <199507190125.VAA00380@hda.com> from "Peter Dufault" at Jul 18, 95 09:25:46 pm
X-Mailer: ELM [version 2.4 PL24]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Content-Length: 1179      
Sender: current-owner@freebsd.org
Precedence: bulk

> 
> Paul Richards writes:
> 
> > 
> > Well, it didn't. Same problem, hung bus.
> > 
> > It's working fine with just the disk and tape though, it's running a 
> > backup as I do this.
> 
> Paul, this is really starting to smell like cables.

I see your getting that same odor.  :-) :-)

> It is time
> to go to the known SCSI-II cables and active termination.  Didn't you
> say you weren't sure they were all SCSI-II?

One more idea just came to mind that I have seen in the past.  Do
there happen to be any HD-50 type connectors in this chain (an HD-50
is the 0.5" pin spacing high density scsi-ii connector, not the
Centronics-50 on the 1542)?  If so please look at the male HD-50
connectors for signs of bent pins.  If one of the ground pins is
bent or broken off it smells just like a cable problem and can be
very hard to track down.  (Well, unless your like me and have scsi-ii
cables laying all over and just do a wholesale swap to a known good
set when that odor starts to get even the slightest bit noticable :-))


-- 
Rod Grimes                                      rgrimes@gndrsh.aac.dev.com
Accurate Automation Company                 Reliable computers for FreeBSD