From owner-aic7xxx@FreeBSD.ORG Fri Apr 15 15:10:31 2005 Return-Path: Delivered-To: aic7xxx@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 0456F16A4CE for ; Fri, 15 Apr 2005 15:10:31 +0000 (GMT) Received: from frodo.hserus.net (frodo.hserus.net [204.74.68.40]) by mx1.FreeBSD.org (Postfix) with ESMTP id C804B43D39 for ; Fri, 15 Apr 2005 15:10:30 +0000 (GMT) (envelope-from kiko@async.com.br) Received: from 200-171-140-32.dsl.telesp.net.br ([200.171.140.32]:43302 helo=anthem.async.com.br) by frodo.hserus.net with esmtps (Cipher TLSv1:EDH-RSA-DES-CBC3-SHA:168) (Exim 4.50 #1) id 1DMSSi-000BIl-D4; Fri, 15 Apr 2005 20:40:29 +0530 Received: from anthem.async.com.br (kiko@localhost.localdomain [127.0.0.1]) by anthem.async.com.br (8.12.3/8.12.3) with ESMTP id j3FFAQO1020227; Fri, 15 Apr 2005 12:10:26 -0300 Received: (from kiko@localhost) by anthem.async.com.br (8.12.3/8.12.3/Debian-7.1) id j3FFAPqd020223; Fri, 15 Apr 2005 12:10:25 -0300 From: Christian Robottom Reis Date: Fri, 15 Apr 2005 12:10:25 -0300 To: "Justin T. Gibbs" Message-ID: <20050415151025.GE11591@www.async.com.br> References: <20050415132335.GA11591@www.async.com.br> <41D76B9E487CACA46E899923@caspian.scsiguy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <41D76B9E487CACA46E899923@caspian.scsiguy.com> Organization: Async Open Source, Brazil User-Agent: Mutt/1.5.6+20040907i cc: AIC7xxx Mailing List Subject: Re: 2940A failing mt operations with Medium Error X-BeenThere: aic7xxx@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Adaptec Device Drivers in FreeBSD and Linux List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 15 Apr 2005 15:10:31 -0000 On Fri, Apr 15, 2005 at 08:34:38AM -0600, Justin T. Gibbs wrote: > > We're having a problem with our SDT-9000 DDS-3 tape drive, which is > > attached to a rather puny 2940A. We had it installed on a little Pentium > > MMX and it was working fine, but since moving it last week to a more > > modern machine, we've been getting error on all mt operations. The > > kernel complaint is below. This is what I'm running: > > > > scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.3.9 > > > > aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs > > Vendor: SONY Model: SDT-9000 Rev: 0601 > > Type: Sequential-Access ANSI SCSI revision: 02 > > st: Version 20040102, bufsize 32768, max init. bufs 4, s/g segs 16 > > > > The messages below indicates a Medium Error/Cartidge fault, but no > > matter if I try with a new cartridge or old, the same error ensues. > > The timeout messages from the ahc driver indicate that the tape > drive is failing to complete a transaction that is in the disconnected > state. This often happens if the tape drive is stuck in a retry > loop trying desparately to either read or write data and thus > neglects to complete a transaction before the OS command timeout > fires. Interesting. Could it be a matter of us just waiting too little, or is something definitely wrong with the hardware? > You might try running a cleaning cartridge through your > drive. I have already -- a few times, actually. Every time I've tried with a new tape I've run a cleaning cartridge; hasn't seemed to make much of a difference. Take care, -- Christian Robottom Reis | http://async.com.br/~kiko/ | [+55 16] 3361 2331