From owner-freebsd-questions@FreeBSD.ORG Tue Jul 8 06:42:43 2003 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9B8F837B401 for ; Tue, 8 Jul 2003 06:42:43 -0700 (PDT) Received: from clunix.cl.msu.edu (clunix.cl.msu.edu [35.9.2.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id D856C43FAF for ; Tue, 8 Jul 2003 06:42:42 -0700 (PDT) (envelope-from jerrymc@clunix.cl.msu.edu) Received: from clunix.cl.msu.edu (localhost [127.0.0.1]) by clunix.cl.msu.edu (8.12.9/8.12.9) with ESMTP id h68DgfOg021398; Tue, 8 Jul 2003 09:42:41 -0400 (EDT) Received: (from jerrymc@localhost) by clunix.cl.msu.edu (8.12.9/8.12.9/Submit) id h68DgfXr021397; Tue, 8 Jul 2003 09:42:41 -0400 (EDT) From: Jerry McAllister Message-Id: <200307081342.h68DgfXr021397@clunix.cl.msu.edu> To: joe@jwebmedia.com (Joseph Koenig) Date: Tue, 8 Jul 2003 09:42:41 -0400 (EDT) In-Reply-To: from "Joseph Koenig" at Jul 08, 2003 08:22:50 AM X-Mailer: ELM [version 2.5 PL2] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: freebsd-questions@freebsd.org Subject: Re: Tape Drive Problems X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 08 Jul 2003 13:42:43 -0000 > > Hi, > > I have a Dell PowerEdge server with a RAID 5 and a SCSI tape drive. For the > past two years, the tape drive has worked fine. All of the sudden I get: > > DUMP: Date of this level 0 dump: Mon Jun 16 01:00:00 2003 > DUMP: Date of last level 0 dump: the epoch > DUMP: Dumping /dev/aacd0s1a (/) to /dev/sa0 > DUMP: mapping (Pass I) [regular files] > DUMP: mapping (Pass II) [directories] > DUMP: estimated 297479 tape blocks. > DUMP: Cannot open output "/dev/sa0". > DUMP: fopen on /dev/tty fails: Device not configured > DUMP: The ENTIRE dump is aborted. > > When doing a dump. mt status shows: > > server1# mt -f /dev/sa0 status > mt: /dev/sa0: Input/output error It could be due to just a dirty tape and/or heads, but we have a bunch of Dell Poweredge servers and occasionally they seem to get in to a weird condition that looks like this and that seems to require a complete power removal to free up. We have people shut them down and even completely remove the power cord and let them set and discharge for a bit - several (10 ??) minutes and then restart things. Often this helps. We recommend using the cleaning cartridges as rarely as possible - they seem to abraid the heads, but once in a while stuff gets built up and you just have to do it. Then run one twice and try with a good condition (new maybe) tape. If those two things do not cure it, then you probably need to replace the drive or some of the related hardware such as the SCSI controller. . ////jerry > > Does this sound like a scsi bus problem, or perhaps a bad drive? Anything I > can do to tell for sure what the problem is? Thanks, > > Joe > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to "freebsd-questions-unsubscribe@freebsd.org" >