From owner-freebsd-questions@FreeBSD.ORG Wed Aug 27 20:07:55 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7C1FE106567D for ; Wed, 27 Aug 2008 20:07:55 +0000 (UTC) (envelope-from perlcat@alltel.net) Received: from ispmxmta06-srv.windstream.net (ispmxmta06-srv.windstream.net [166.102.165.167]) by mx1.freebsd.org (Postfix) with ESMTP id 121CC8FC22 for ; Wed, 27 Aug 2008 20:07:54 +0000 (UTC) (envelope-from perlcat@alltel.net) Received: from ispmxaamta04-gx.windstream.net ([67.206.60.148]) by ispmxmta06-srv.windstream.net with ESMTP id <20080827195345.UYYR27873.ispmxmta06-srv.windstream.net@ispmxaamta04-gx.windstream.net> for ; Wed, 27 Aug 2008 14:53:45 -0500 Received: from ext-b14-148.omhq.uprr.com ([67.206.60.148]) by ispmxaamta04-gx.windstream.net with ESMTP id <20080827195345.YKUV6872.ispmxaamta04-gx.windstream.net@ext-b14-148.omhq.uprr.com> for ; Wed, 27 Aug 2008 14:53:45 -0500 From: Tyson Boellstorff To: freebsd-questions@freebsd.org Date: Wed, 27 Aug 2008 14:53:44 -0500 User-Agent: KMail/1.9.7 References: <200808271022.52223.kirk@strauser.com> In-Reply-To: <200808271022.52223.kirk@strauser.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200808271453.44834.perlcat@alltel.net> Subject: Re: Help! Tape drive resets the server! X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Aug 2008 20:07:55 -0000 On Wednesday 27 August 2008 10:22:52 Kirk Strauser wrote: > I have a Seagate DDS-4 tape drive: > > sa0 at sym0 bus 0 target 3 lun 0 > sa0: Removable Sequential Access SCSI-3 > device sa0: 40.000MB/s transfers (20.000MHz, offset 16, 16bit) > > It's attached to a Tekram DC390F SCSI card: > > Is it possible that the drive itself is triggering the reset? I'd find > that a little unlikely, but am certainly not an expert on the matter. > Alternatively, has anyone had that sort of problem with drives attached to > that card? 1) try a different scsi cable. 2) Are you using adapters? Get the right cable. One new, known good cable, no adapters. 3) Yes, it's possible that your drive is doing this, but more likely you have a bent pin/short somewhere causing the scsi bus to reset, and your kernel isn't handling this nicely. Check your pins. They bend easy, but a mechanical pencil with no lead in it can help you with that. 4) Is your termination auto or physical? 5) Is the tape drive manually jumped for a specific ID? I assume that it is set for 3. Try 4. 6) Try a slower transfer rate. Can you dump the SCSI sense codes that are being seen on the SCSI bus? That will most likely tell you whats going on right there.