From owner-freebsd-scsi Mon Apr 21 14:12:05 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id OAA14438 for freebsd-scsi-outgoing; Mon, 21 Apr 1997 14:12:05 -0700 (PDT) Received: from iafnl.es.iaf.nl (uucp@iafnl.es.iaf.nl [195.108.17.20]) by freefall.freebsd.org (8.8.5/8.8.5) with SMTP id OAA14381 for ; Mon, 21 Apr 1997 14:11:59 -0700 (PDT) Received: by iafnl.es.iaf.nl with UUCP id AA09017 (5.67b/IDA-1.5 for freebsd-scsi@freebsd.org); Mon, 21 Apr 1997 23:12:02 +0200 Received: (from wilko@localhost) by yedi.iaf.nl (8.7.5/8.6.12) id UAA00722; Mon, 21 Apr 1997 20:36:35 +0200 (MET DST) From: Wilko Bulte Message-Id: <199704211836.UAA00722@yedi.iaf.nl> Subject: Re: Vendor specific ASCQ SCSI errors in 2.2-STABLE To: gibbs@plutotech.com (Justin T. Gibbs) Date: Mon, 21 Apr 1997 20:36:35 +0200 (MET DST) Cc: Alan.Judge@indigo.ie, gibbs@plutotech.com, freebsd-scsi@freebsd.org In-Reply-To: <199704211548.JAA10492@pluto.plutotech.com> from "Justin T. Gibbs" at Apr 21, 97 09:47:05 am X-Mailer: ELM [version 2.4 PL24 ME8a] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@freebsd.org X-Loop: FreeBSD.org Precedence: bulk As Justin T. Gibbs wrote... > >At the moment, I only get the error on sd0 and even there it only > >happens once a day or so. Any ideas on where to start narrowing down > >the problem. > > My first hunch would be a bogus connector somewhere in the system which > is putting a large capacitive load on the bus. I would try changing out > a canister at a time with a known good one. If you can afford to steal > a canister from the other bus, the one that seems to work, that should > allow you to be "scientific" about it. How much stublength does each canister introduce? Are these canisters designed with Ultra SCSI speeds in mind? Wilko _ ____________________________________________________________________ | / o / / _ Bulte email: wilko@yedi.iaf.nl - Arnhem, The Netherlands |/|/ / / /( (_) Do, or do not. There is no 'try' - Yoda --------------------------------------------------------------------------