From owner-freebsd-questions@FreeBSD.ORG Wed Dec 17 20:59:23 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 A527216A4CE for ; Wed, 17 Dec 2003 20:59:23 -0800 (PST) Received: from post5.inre.asu.edu (post5.inre.asu.edu [129.219.110.120]) by mx1.FreeBSD.org (Postfix) with ESMTP id 202D043D48 for ; Wed, 17 Dec 2003 20:59:22 -0800 (PST) (envelope-from David.Bear@asu.edu) Received: from conversion.post5.inre.asu.edu by asu.edu (PMDF V6.1-1X6 #30769) id <0HQ200F01R5HXI@asu.edu> for freebsd-questions@freebsd.org; Wed, 17 Dec 2003 21:58:29 -0700 (MST) Received: from smtp.asu.edu (smtp.asu.edu [129.219.110.107]) <0HQ2006M9R5HHU@asu.edu>; Wed, 17 Dec 2003 21:58:29 -0700 (MST) Received: from moroni.pp.asu.edu (moroni.pp.asu.edu [129.219.120.183]) (8.12.10/8.12.10/asu_smtp_relay,nullclient,tcp_wrapped) with ESMTP id hBI4wTS8014134; Wed, 17 Dec 2003 21:58:29 -0700 (MST) Received: (from iddwb@localhost) by moroni.pp.asu.edu (8.11.6/8.11.6) id hBI4wTb21185; Wed, 17 Dec 2003 21:58:29 -0700 Date: Wed, 17 Dec 2003 21:58:29 -0700 From: David Bear In-reply-to: <"from anubis357"@optusnet.com.au> To: anubis Message-id: <20031217215829.I11205@asu.edu> MIME-version: 1.0 Content-type: text/plain; charset=us-ascii Content-disposition: inline User-Agent: Mutt/1.2.5.1i References: <20031215165555.J32172@asu.edu> <200312162006.15235.anubis357@optusnet.com.au> cc: freebsd-questions@freebsd.org Subject: /dev/sa and rsa was multiple dumps to single tape X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: David.Bear@asu.edu List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 18 Dec 2003 04:59:23 -0000 On Tue, Dec 16, 2003 at 08:06:15PM +1000, anubis wrote: > On Tue, 16 Dec 2003 09:55 am, David Bear wrote: > > if I am writing multiple dumps to a single tape, is it wise to have mt > > write a setmark after dumping each file system? > > There is no real need to do this. > > If you want to write dump after dump onto a tape in the one session use the > /dev/nsa0 device. This device is the same as /dev/sa0 but doesnt rewind > between sessions. So the tape will be ready for the next dump automatically. > thanks for all the replies. I am wondering now what the difference is between /dev/sa0 and /dev/rsa0 and /dev/nsa0 and /dev/nrsa0 -- David Bear phone: 480-965-8257 fax: 480-965-9189 College of Public Programs/ASU Wilson Hall 232 Tempe, AZ 85287-0803 "Beware the IP portfolio, everyone will be suspect of trespassing"