Date: Tue, 19 Apr 2005 20:18:19 +0200 From: Olivier Gautherot <oliviergautherot@free.fr> To: freebsd-hardware@freebsd.org, freebsd-questions@freebsd.org Cc: Micheal Patterson <micheal@tsgincorporated.com> Subject: Re: Exabyte 221L Auto Loader Message-ID: <200504192018.20274.oliviergautherot@free.fr> In-Reply-To: <018201c54506$c8c4ace0$4df24243@tsgincorporated.com> References: <018201c54506$c8c4ace0$4df24243@tsgincorporated.com>
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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
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