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Date:      Thu, 17 May 2007 11:30:00 +0200
From:      Peter Schuller <peter.schuller@infidyne.com>
To:        Norberto Meijome <freebsd@meijome.net>
Cc:        Roland Smith <rsmith@xs4all.nl>, FreeBSD Questions <freebsd-questions@freebsd.org>, Paul Schmehl <pauls@utdallas.edu>
Subject:   Re: Best remote backup method?
Message-ID:  <464C2098.4050109@infidyne.com>
In-Reply-To: <20070517085201.73e347b3@localhost>
References:  <437646E3279CED649940FB48@utd59514.utdallas.edu>	<20070516202735.GB97410@slackbox.xs4all.nl>	<20070516205504.GD97410@slackbox.xs4all.nl> <20070517085201.73e347b3@localhost>

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> Also, dump/restore allows you to use snapshots on a live filesystem (I =
would
> test it properly on a large FS with heavy activity).=20

But it's worth pointing out that this is fully possibly with any backup
tool - just run mksnap_ffs and backup a mounted snapshot. I do this with
rdiff-backup for example.

> Now, if you are worried about "backing up the whole filesystem"...well,=
 just
> tell dump not to dump it :)
>=20
> man chflags (in particular, the nodump flag)
> man dump (in particular, -h )

The problem with this is for me two-fold:

(1) It's a global property. I can't take different backups that
include/exclude different things.

(2) I can't easily express "backup /usr/var/db/my-important-database"
without seting "nodump" on a bunch of stuff except that. In other words,
I want exclude by default, while dump and the chflags system provides
include by default.

That said I do like dump's integration with snapshots and overall
coherent feeling. If backup diskspace and bandwidth was not a concern
I'd use it.

--=20
/ Peter Schuller

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