Re: [BackupPC-users] Archive full backups?

[Tino Schwarze]

On Sun, Jan 04, 2009 at 01:38:19PM +0100, Bernhard Schneck wrote:

 I've been using BackupPC (3.0.0) on Ubuntu (8.x) for a while
 and am quite happy with it ... thanks a lot for the effort
 to all BackupPC developers and contributors!
 
 I've started to look at the Archive functions.
 
 What I want to achieve is to do regular full and incremental
 backups, while archiving the most recent full backups to
 different media regularly (say once per week).
 
 As I understand, Archive will transfer the most recent backup
 to the archive storage location ... even if this is an
 incremental and the corresponding full backup has not been
 archived (which makes the incremental more or less unusable
 for disaster recovery purposes)

No, the archive you get from a full will be identical to the archive you
get from an incremental. The term full backup and incremental
backup is only of interest during the data transfer phase from client
to the BackupPC server. After that, all backups are treated (almost) the
same with gaps in incrementals being automatically filled from the most
recent incremental or full.

I'm using the archive feature with a custom script to get archives on
tape - the script checks which hosts to archive (based on last archive
time), then creates the archive. When the script is finished (it's got
an enforced timeout), Bacula picks up the archives and writes them to
tape.

HTH,

Tino.

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[BackupPC-users] Archive full backups?

[Bernhard Schneck]

Hi,

I've been using BackupPC (3.0.0) on Ubuntu (8.x) for a while
and am quite happy with it ... thanks a lot for the effort
to all BackupPC developers and contributors!

I've started to look at the Archive functions.

What I want to achieve is to do regular full and incremental
backups, while archiving the most recent full backups to
different media regularly (say once per week).

As I understand, Archive will transfer the most recent backup
to the archive storage location ... even if this is an
incremental and the corresponding full backup has not been
archived (which makes the incremental more or less unusable
for disaster recovery purposes)

Is there a setting somewhere to achieve this?
Is ``filled incremental'' the best/recommended/only way?
What are other people using?

The only idea I have currently is to script the archive
process to check for full backups on a daily basis, copy
them to a staging area, and archive from there once a
week ... this is possible, but lacks elegance :-)

I've searched the archives (and also did some source code
reading), but havn't found a discussion of this situation
(I may have used the wrong search terms, though, so please
point me in the right direction if I missed the obvious!)

Thanks,

\Bernhard.


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