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Date:      Thu, 17 May 2007 11:30:00 +0200
From:      Peter Schuller <>
To:        Norberto Meijome <>
Cc:        Roland Smith <>, FreeBSD Questions <>, Paul Schmehl <>
Subject:   Re: Best remote backup method?
Message-ID:  <>
In-Reply-To: <20070517085201.73e347b3@localhost>
References:  <>	<>	<> <20070517085201.73e347b3@localhost>

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> Also, dump/restore allows you to use snapshots on a live filesystem (I =
> 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,=
> tell dump not to dump it :)
> 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.

/ Peter Schuller

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