From owner-freebsd-current Wed Jul 19 05:12:16 1995 Return-Path: current-owner Received: (from majordom@localhost) by freefall.cdrom.com (8.6.11/8.6.6) id FAA21271 for current-outgoing; Wed, 19 Jul 1995 05:12:16 -0700 Received: from server.netcraft.co.uk (server.netcraft.co.uk [194.72.238.2]) by freefall.cdrom.com (8.6.11/8.6.6) with ESMTP id FAA21264 ; Wed, 19 Jul 1995 05:12:08 -0700 Received: (from paul@localhost) by server.netcraft.co.uk (8.6.11/8.6.9) id NAA02642; Wed, 19 Jul 1995 13:11:07 +0100 From: Paul Richards Message-Id: <199507191211.NAA02642@server.netcraft.co.uk> Subject: Re: scsi problem solved To: dufault@hda.com (Peter Dufault) Date: Wed, 19 Jul 1995 13:11:06 +0100 (BST) Cc: paul@freebsd.org, rgrimes@gndrsh.aac.dev.com, FreeBSD-current@freebsd.org In-Reply-To: <199507190125.VAA00380@hda.com> from "Peter Dufault" at Jul 18, 95 09:25:46 pm Reply-to: paul@freebsd.org X-Mailer: ELM [version 2.4 PL24] MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 8bit Content-Length: 1400 Sender: current-owner@freebsd.org Precedence: bulk In reply to Peter Dufault who said > > 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. 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? > Ok, a summary and yes I proably agree with you its cables. I've found a setup that works and I'm leaving it that way :-) I had to disable scsi=ii and sync for all three devices, even that didn't work first off. I then found a scsi chain configuration that did work, with a scsi-ii cable from card to disk, scsi-ii from disk to cdrom and a scsi-i (no more scsi-ii cables) from the cdrom to DAT with active termination on the DAT. I'm not using internal termination on any of the devices, just the controller, I plug an active terminator into the back of the DAT. Well, this has worked well under heavy loading for over 12 hours so I'm not touching it :-) This whole box is a temporary setup so when we buy the new server I'll make sure we get decent cables too :-) Thanks for all the help guys. -- Paul Richards, Bluebird Computer Systems. FreeBSD core team member. Internet: paul@FreeBSD.org, http://www.freebsd.org/~paul Phone: 0370 462071 (Mobile), +44 1222 457651 (home)