From owner-freebsd-questions@FreeBSD.ORG Tue May 17 23:55:52 2005 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 86D4916A4CE for ; Tue, 17 May 2005 23:55:52 +0000 (GMT) Received: from clunix.cl.msu.edu (clunix.cl.msu.edu [35.9.2.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2765E43D73 for ; Tue, 17 May 2005 23:55:52 +0000 (GMT) (envelope-from jerrymc@clunix.cl.msu.edu) Received: from clunix.cl.msu.edu (localhost [127.0.0.1]) j4HNtjJF001178; Tue, 17 May 2005 19:55:45 -0400 (EDT) Received: (from jerrymc@localhost) by clunix.cl.msu.edu (8.12.10+Sun/8.12.2/Submit) id j4HNtiFe001177; Tue, 17 May 2005 19:55:44 -0400 (EDT) From: Jerry McAllister Message-Id: <200505172355.j4HNtiFe001177@clunix.cl.msu.edu> To: kris@obsecurity.org (Kris Kennaway) Date: Tue, 17 May 2005 19:55:44 -0400 (EDT) In-Reply-To: <20050517221411.GA1499@xor.obsecurity.org> X-Mailer: ELM [version 2.5 PL7] MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: virenp@mail.utexas.edu cc: questions@freebsd.org cc: Kris Kennaway Subject: Re: Transferring dump file to tape? 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, 17 May 2005 23:55:52 -0000 > > > But, even doing that doesn't fix the problem we often see with > > writes to tape failing in that manner.=20 > >=20 > > dd itself is reliable. It is tried and true. I think our > > failures come from something in the sa driver because a drive > > that fails usually fails for everything except maybe tar and dump. > > Are you absolutely certain that the tape device is not in use at the > time that the application receives the error? Yes. It can even happen in single user. So far I have only had the problem with various levels of DAT tapes. It has never failed that way with DLTs. ////jerry > > Kris >