From owner-freebsd-questions@FreeBSD.ORG Mon Apr 25 01:50:41 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 B624616A4CE for ; Mon, 25 Apr 2005 01:50:39 +0000 (GMT) Received: from mail.cs.ait.ac.th (mail.cs.ait.ac.th [192.41.170.16]) by mx1.FreeBSD.org (Postfix) with ESMTP id 20F1E43D46 for ; Mon, 25 Apr 2005 01:50:38 +0000 (GMT) (envelope-from on@cs.ait.ac.th) Received: from banyan.cs.ait.ac.th (banyan.cs.ait.ac.th [192.41.170.5]) by mail.cs.ait.ac.th (8.12.11/8.12.11) with ESMTP id j3P1oZVl085222 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 25 Apr 2005 08:50:35 +0700 (ICT) Received: (from on@localhost) by banyan.cs.ait.ac.th (8.13.1/8.12.11) id j3P1oWp3033477; Mon, 25 Apr 2005 08:50:32 +0700 (ICT) Date: Mon, 25 Apr 2005 08:50:32 +0700 (ICT) Message-Id: <200504250150.j3P1oWp3033477@banyan.cs.ait.ac.th> From: Olivier Nicole To: kheuer2@gwdg.de In-reply-to: <20050420090231.R37022@gwdu60.gwdg.de> (message from Konrad Heuer on Wed, 20 Apr 2005 09:16:05 +0200 (CEST)) References: <20050420090231.R37022@gwdu60.gwdg.de> X-Virus-Scanned: on CSIM by amavisd-milter (http://www.amavis.org/) cc: freebsd-questions@freebsd.org Subject: Re: DLT tape / no streaming 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: Mon, 25 Apr 2005 01:50:41 -0000 > I use a Benchmark DLT tape drive to backup data on my DELL PowerEdge 2650 > system [...] > The problem I see is that data flow is not steadily streaming; the tape > drive is operating in start-stop-mode. I use team(1) (/usr/ports/misc/team) to bufferize the acces to a tape drive, in a command like: tar cf - /mydisk | team 1m 16 >/dev/tape_drive It usually does the trick. Olivier