From owner-freebsd-questions@FreeBSD.ORG Tue Apr 19 18:18:47 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 B21BE16A4CE; Tue, 19 Apr 2005 18:18:47 +0000 (GMT) Received: from postfix3-2.free.fr (postfix3-2.free.fr [213.228.0.169]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5B5FF43D41; Tue, 19 Apr 2005 18:18:47 +0000 (GMT) (envelope-from oliviergautherot@free.fr) Received: from ogautherot (mas91-1-82-238-221-116.fbx.proxad.net [82.238.221.116]) by postfix3-2.free.fr (Postfix) with ESMTP id A8C31C1BB; Tue, 19 Apr 2005 20:18:21 +0200 (CEST) From: Olivier Gautherot To: freebsd-hardware@freebsd.org, freebsd-questions@freebsd.org Date: Tue, 19 Apr 2005 20:18:19 +0200 User-Agent: KMail/1.8 References: <018201c54506$c8c4ace0$4df24243@tsgincorporated.com> In-Reply-To: <018201c54506$c8c4ace0$4df24243@tsgincorporated.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200504192018.20274.oliviergautherot@free.fr> cc: Micheal Patterson Subject: Re: Exabyte 221L Auto Loader X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list Reply-To: olivier@gautherot.net List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 19 Apr 2005 18:18:47 -0000 Hi Michael! > Is there anyone using this device with FreeBSD 4.x or 5.x? I'm new to the > world of auto-loaders and am curious if FreeBSD's tar / dump utilities can > support it properly for backing up of 3tb of data from various partitions. > If so, are there any specifics that I should be aware of when using this > device? Any recommendations on using other software other than tar or dump > to do this that are available in the ports tree? rsync and rsnapshot are alternatives - I particularly like the second one as it provides a kind of incremental backup (you can have several snapshots of the same file, what can be handy to retrieve an old version of a file after a deadly edit without having the sysadmin fiddle with tapes...) Regarding tar, make sure you don't save a huge file on an ext2fs file system. I did this mistake once on a machine that was shared between FreeBSD and Linux and I've lost a significant amount of data: ext2fs does not support files of more than 4GB (compressing the archive does not shift the threshold - data will be lost before this). UFS2 is the way to go: the inodes management is not quite as efficient from a disk usage point of view but for huge disks, it will bring you peace of mind, which is priceless. Hope it helps -- Olivier Gautherot olivier@gautherot.net