From owner-freebsd-scsi Sun Mar 8 15:03:13 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id PAA25194 for freebsd-scsi-outgoing; Sun, 8 Mar 1998 15:03:13 -0800 (PST) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from uni4nn.gn.iaf.nl (osmium.gn.iaf.nl [193.67.144.12]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id PAA25161 for ; Sun, 8 Mar 1998 15:03:04 -0800 (PST) (envelope-from wilko@yedi.iaf.nl) Received: by uni4nn.gn.iaf.nl with UUCP id AA03082 (5.67b/IDA-1.5 for freebsd-scsi@FreeBSD.ORG); Mon, 9 Mar 1998 00:02:13 +0100 Received: (from wilko@localhost) by yedi.iaf.nl (8.8.7/8.6.12) id UAA03951; Sun, 8 Mar 1998 20:42:33 +0100 (MET) From: Wilko Bulte Message-Id: <199803081942.UAA03951@yedi.iaf.nl> Subject: Re: timeouts with adaptec 1742 In-Reply-To: <199803081636.IAA26443@implode.root.com> from David Greenman at "Mar 8, 98 08:36:42 am" To: dg@root.com Date: Sun, 8 Mar 1998 20:42:32 +0100 (MET) Cc: tweten@frihet.com, keefe@cse.psu.edu, julian@whistle.com, freebsd-scsi@FreeBSD.ORG X-Organisation: Private FreeBSD site - Arnhem, The Netherlands X-Pgp-Info: PGP public key at 'finger wilko@freefall.freebsd.org' X-Mailer: ELM [version 2.4ME+ PL32 (25)] Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org As David Greenman wrote... > >Last October, you had a discussion on the FreeBSD SCSI list with Julian > >Elischer about your difficulties with an Adaptec 1742 and a Seagate ST32151N, > >under FreeBSD. You said that the combination worked under DOS. > ... > >Since I'm experiencing a similar problem with a 1742, FreeBSD 2.2.5, and a > >Seagate ST34571N, I'm hoping your problem actually was resolved. Was it? If > >so, what was the resolution? > > That seems kind of strange, but I had problems using a 1742 with modern > drives myself back in FreeBSD 1.x days - it simply refused to work reliably > in fast (10MHz) mode with certain drives - actually resulting in corrupt > data being written out(!). ...I don't know if this is at all related to > your problem, however. You might try slowing things down to 5MHz though... David is right: the 174x is a known pain in the b*tt for newer/faster drives. It is very sensitive to the 'cleanliness' of the SCSI bus, for instance you should not use an external and an internal cable on the same board at the same time. Some people get away with it, for others it is the kiss of death. I have FreeBSD 2.x running with 1740 successfully, but only with non-fast drives. 274x boards tend to be quite a bit better Wilko _ ______________________________________________________________________ | / o / / _ Bulte email: wilko @ yedi.iaf.nl http://www.tcja.nl/~wilko |/|/ / / /( (_) Arnhem, The Netherlands - Do, or do not. There is no 'try' --------------- Support your local daemons: run [Free,Net,Open]BSD Unix -- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message