BackupPC-users

Re: [BackupPC-users] merge host from one pool into another pool

2008-11-18 04:49:00
Subject: Re: [BackupPC-users] merge host from one pool into another pool
From: Adam Goryachev <mailinglists AT websitemanagers.com DOT au>
To: "General list for user discussion, questions and support" <backuppc-users AT lists.sourceforge DOT net>
Date: Tue, 18 Nov 2008 20:47:13 +1100
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

dan wrote:
> I have done this on a small setup a while ago.  I just pulled over the
> pc directory from one into the other and adjusted my config files for
> the imported backups..  aditionally I made an error when copying and
> brought over numeric user ids for the files and had to chown them.  Im
> not sure if the nightly run will handle the typical deduplication or
> not.  I never checked.
> 
> so..yet you can merge them but I am not sure if you get deduplication in
> the next nightly run...

You would not get proper de-duplication... basically you keep the
de-duplication amongst the files you copy across, but because you are
not linking those files to the pool, you don't get any de-dupe between
the existing files in the pool and the new files you just copied across
under the pc dir.

Also, what is potentially worse, is the next backup will store another
duplicate for each file (because it doesn't exist in the pool). However,
the good news is that nothing should break by doing this, except you use
up additional disk space.

Finally, someone recently questioned what would happen if they moved the
pc dirs across one backup at a time, and then ran backuppc_link... I
don't recall seeing any response/answer to that, but it sounded like a
very sensible method to combine two backuppc systems...

Regards,
Adam
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.9 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iEYEARECAAYFAkkijyAACgkQGyoxogrTyiVGNQCgz0nXBuU8lXVByftUItigXkv4
uh0AoMns2SYlFMpHlyy4mtzzBAYjzLKk
=mZzv
-----END PGP SIGNATURE-----

-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
BackupPC-users mailing list
BackupPC-users AT lists.sourceforge DOT net
List:    https://lists.sourceforge.net/lists/listinfo/backuppc-users
Wiki:    http://backuppc.wiki.sourceforge.net
Project: http://backuppc.sourceforge.net/