From owner-freebsd-questions Wed Jan 3 16:45: 6 2001 From owner-freebsd-questions@FreeBSD.ORG Wed Jan 3 16:45:05 2001 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from christel.heitec.net (christel.heitec.net [193.101.232.3]) by hub.freebsd.org (Postfix) with ESMTP id C4C9437B400 for ; Wed, 3 Jan 2001 16:45:04 -0800 (PST) Received: from heitec.net (paladin.heitec.net [193.101.232.30]) by christel.heitec.net (Postfix) with ESMTP id E72D6354811 for ; Thu, 4 Jan 2001 01:52:31 +0100 (CET) Message-ID: <3A53C78F.359C6A80@heitec.net> Date: Thu, 04 Jan 2001 01:45:03 +0100 From: bdluevel@heitec.net X-Mailer: Mozilla 4.04 [en] (WinNT; I) MIME-Version: 1.0 To: questions@freebsd.org Subject: Re: a very dumb backup question References: <14931.48360.311640.703454@guru.mired.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Mike Meyer wrote: [...] > Final comment - I'd recommend dump instead of tar, especially for the > root file system, because historically it's tracked changes to the > file sysystem and special files better than tar. I've got an additional question concerning dump vs. tar: I seem to remember that tar has an built-in limit of 8 GB per single backup, because of some restriction in the tar file format. Is this true, and what are the limits for dump and pax? And, given that backups sizes are limited, how to best backup a 30 GB partition using 20 GB tapes? Chunk-wise, with several 'tar' runs to the same tape without rewinding, I assume? (Repartitioning into partitions with less than 8 GB each is not an option in my situation, I'm afraid.) Is there a way to let 'dump' backup less than an entire partition, such as a directory and all its subdirectories? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message