From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 5 Sep 2001 07:22:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 5 Sep 2001 07:21:51 -0400 Received: from pD9532FCA.dip.t-dialin.net ([217.83.47.202]:58892 "EHLO Marvin.DL8BCU.ampr.org") by vger.kernel.org with ESMTP id ; Wed, 5 Sep 2001 07:21:48 -0400 Date: Wed, 5 Sep 2001 11:21:27 +0000 From: Thorsten Kranzkowski To: Frank Schneider Cc: Antonio Miguel Trindade , linux-kernel@vger.kernel.org Subject: Re: aic7xxx errors Message-ID: <20010905112127.A21405@Marvin.DL8BCU.ampr.org> Reply-To: dl8bcu@dl8bcu.de Mail-Followup-To: Frank Schneider , Antonio Miguel Trindade , linux-kernel@vger.kernel.org In-Reply-To: <200109050621.f856LAK00824@ambassador.mathewson.int> <3B95DB22.866EDCA3@mediascape.de> <3B95EA8F.93B27304@t-online.de> <200109051027.f85ARmM10012@polaris.dei.uc.pt> <3B960208.7121318@t-online.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 1.0.1i In-Reply-To: <3B960208.7121318@t-online.de>; from SPATZ1@t-online.de on Wed, Sep 05, 2001 at 12:44:24PM +0200 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 05, 2001 at 12:44:24PM +0200, Frank Schneider wrote: > Antonio Miguel Trindade schrieb: > > Em Quarta 05 Setembro 2001 10:04, Frank Schneider escreveu: > > > Olaf Zaplinski schrieb: > > > > > > I had this effect too here (RH7.1, Kernel 2.4.3), but i put it on a > > > wrong termination of the LVD Bus...be careful if you have LVD-Drives > > > with a "Termination"-Jumper...(e.g. IBM DGHS18V)...this Termination is > > > only usable if you use the drive as Single Ended SCSI-UW, *not* if you > > > use the drive i a true LVD-environment ! > > > > > > > According to IBM specs, _no LVD drive has terminators built-in_... I have There are definitely some that have this SE-Termination jumper. > > But as said, my DGHS-Disk has a build-in terminator for use with > UW-buses...the bad thing is, that if you "terminate" the LVD-bus with > this, it seems to work...for some time...i had "/" on it and a part of > my /home-RAID5, and it run 2 weeks.... Usually when a single device in a LVD chain is operated in SE mode all LVD devices also switch to SE mode automatically. The use of a SE terminator such as the one on your harddisk qualifies for SE operation. But in SE mode you are tied to the much stricter specifications like length of cable etc. compared to LVD mode. So maybe you just exceeded specifications too much. Bye, Thorsten -- | Thorsten Kranzkowski Internet: dl8bcu@dl8bcu.de | | Mobile: ++49 170 1876134 Snail: Niemannsweg 30, 49201 Dissen, Germany | | Ampr: dl8bcu@db0lj.#rpl.deu.eu, dl8bcu@marvin.dl8bcu.ampr.org [44.130.8.19] |