Date: Fri, 4 Feb 2000 06:21:40 +0100 From: Martin Welk <mw@theatre.sax.de> To: Matt Heckaman <matt@ARPA.MAIL.NET> Cc: questions@FreeBSD.ORG Subject: Re: dump(8) question. Message-ID: <20000204062139.F25109@theatre.lan> In-Reply-To: <Pine.BSF.4.21.0002032110290.3001-100000@w01.arpa-canada.net>; from matt@ARPA.MAIL.NET on Thu, Feb 03, 2000 at 09:12:39PM -0500 References: <Pine.BSF.4.21.0002032110290.3001-100000@w01.arpa-canada.net>
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On Thu, Feb 03, 2000 at 09:12:39PM -0500, Matt Heckaman wrote:
> All have the various dump/pass options set via fstab, now when I run dump,
> and it goes to backup /, will it recurse into /var and so on, thus giving
> me duplicate backups and blowing space?
No. Dump works always on a per-file-system base, that means, each dump
volume is one file-system (or a part of it, if you do a level > 0 backup).
This is why you would want to use the non-rewinding tape device for putting
more than one file system on one tape, like
dump 0uf /dev/nrsa0 /
dump 0uf /dev/nrsa0 /usr
dump 0uf /dev/nrsa0 /var
and so on. If you like, let the last dump work on the rewinding tape device
(/dev/rsa0), so it turns back to the beginning. To add more files to the
tape, you can do positioning with mt (also with the on-close-do-not-rewind-
tape-device, of course, because an mt -f /dev/rsa0 fsf will forward the
tape and immediately rewind it on close). The rewind-device is the default.
Regards,
Martin
--
,,You know, there's a lot of opportunities, if you're knowing to take them,
you know, there's a lot of opportunities, if there aren't
you can make them, make or break them!'' (Tennant/Lowe)
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