From owner-freebsd-questions@FreeBSD.ORG Tue Mar 15 01:04:11 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 EC60816A4CE for ; Tue, 15 Mar 2005 01:04:11 +0000 (GMT) Received: from blackwater.lemis.com (wantadilla.lemis.com [192.109.197.135]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5E41943D49 for ; Tue, 15 Mar 2005 01:04:10 +0000 (GMT) (envelope-from grog@lemis.com) Received: by blackwater.lemis.com (Postfix, from userid 1004) id 3A0B485694; Tue, 15 Mar 2005 11:34:07 +1030 (CST) Date: Tue, 15 Mar 2005 11:34:07 +1030 From: Greg 'groggy' Lehey To: Ludo Koren Message-ID: <20050315010407.GN12078@wantadilla.lemis.com> References: <200503140938.j2E9c2EM024428@lk.tempest.sk> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="pP0ycGQONqsnqIMP" Content-Disposition: inline In-Reply-To: <200503140938.j2E9c2EM024428@lk.tempest.sk> User-Agent: Mutt/1.4.2.1i Organization: The FreeBSD Project Phone: +61-8-8388-8286 Fax: +61-8-8388-8725 Mobile: +61-418-838-708 WWW-Home-Page: http://www.FreeBSD.org/ X-PGP-Fingerprint: 9A1B 8202 BCCE B846 F92F 09AC 22E6 F290 507A 4223 cc: freebsd-questions@freebsd.org Subject: Re: Backup on DDS-4 tapes 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, 15 Mar 2005 01:04:12 -0000 --pP0ycGQONqsnqIMP Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Monday, 14 March 2005 at 10:38:02 +0100, Ludo Koren wrote: > > Hi, > > I am using 5.2.1-RELEASE-p3 for backup on DDS-4 tapes 40GB in size. > > ... > > Why I cannot dump the filesystem on 2 tapes (it takes 3, it seems it > works without compression) no matter if I use dump or cpio? What I am > doing wrong? You're using dump :-) Dump is too stupid to understand compression or EOF marks, so it errs on the side of caution. It's also IMO not a very good backup medium unless you really want the incremental dump facility. Even between different releases of FreeBSD there are compatibility problems, and you can assume that there is no compatibility at all between different operating systems. You may find tar a better choice. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers. --pP0ycGQONqsnqIMP Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.6 (FreeBSD) iD8DBQFCNjSHIubykFB6QiMRArWOAJ4u/jWU5LIhtOS+btqWg4DG8jHhlwCgs68K yytUWMx058En6grAtTosFkc= =G67J -----END PGP SIGNATURE----- --pP0ycGQONqsnqIMP--