From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrew R Reid Subject: Re: Problems with DLT tape drive. Date: Wed, 29 May 2002 09:31:39 +1000 (EST) Sender: linux-scsi-owner@vger.kernel.org Message-ID: References: <20020528153728.C14543@redhat.com> Mime-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Return-path: In-Reply-To: <20020528153728.C14543@redhat.com> List-Id: linux-scsi@vger.kernel.org To: Doug Ledford Cc: linux-tape@vger.kernel.org, linux-scsi@vger.kernel.org Thank you Doug. I did what you sugessted and it works fine. I will reconfigure my scsi busses so that all the 25 pin scsi devices are on the same controller with no other devices. I suppose the reason I was having problems is that there is no termination on the pins that arn't used in the 25 pin cables. Should have thought of that myself! > For testing purposes you could install a terminator on the tape drive, > leaving the scanner and zip drive disconnected long enough to reboot the > machine and try a backup. The SCSI bus layout you list is somewhat > questionable as far as reliability is concerned, and this test should > eliminate a lot of the possible variances that could result in bus errors. > Another option is to configure the BIOS on the 2930 card to only allow > async transfers to the tape drive. That can help with bus errors on > questionable busses. > > -- > Doug Ledford 919-754-3700 x44233 > Red Hat, Inc. > 1801 Varsity Dr. > Raleigh, NC 27606 Andrew Reid C.P.Plating Technical Sales Manager P O Box 1335 --------- /--- /---\ C. P. Plating Pty Ltd 222a Macathur Ave ------- / / / Mob: +61 4 1474 9943 EAGLE FARM 4009 ----- / /----/ Direct: +61 7 3260 3260 AUSTRALIA --- / / e-mail: andrew@cpplating.com.au Phn: +61 7 3268 3044 - |---- o / o Fax: +61 7 3268 3433