> >> 2010/10/21 Alan Brown <ajb2 AT mssl.ucl.ac DOT uk>
> >>> I've been asked to start backing up a 2+PB project (We're mapping
> >>> Mars to 1 metre resolution) and keep the database separated from
> >>> the main backups in case it gets split off in future.
> >>>
> >>> There's plenty of information about how to define and use
> >>> catalogs, but one thing isn't clear:
> >>>
> >>> "How do you initialise a second(third/fourth/etc) catalog?"

On 21/10/10, Francisco Javier Funes Nieto (esencia AT gmail DOT com) wrote:
> You can use one Catalog for a set of remote machines, and another for local
> machines ... or any else combination!
> 
> Catalog = Database in any host.

I think Francisco's solution seems very elegant for a situation where
tapes don't need to be shared between hosts.

I've developed a crude system which might be another approach if you are
mainly working with Full backups, which is to snapshot the catalog
associated with a job so that the particular job can easily be
recreated in another Postgresql instance. Let me know if you are
interested in that.

Following a brief discussion with Avi Rozen, who has developed the
baculafs "catalog file system" I'm thinking of working on this more to
make per-job sqlite dumps from Postgres to make entirely self-contained
job catalogues, and to provide a facility to make a bootstrap file
directly from either the Postgres or the job catalogue db. But that is
unlikely to be relevant here!

-- 
Rory Campbell-Lange
rory AT campbell-lange DOT net

Campbell-Lange Workshop
www.campbell-lange.net
0207 6311 555
3 Tottenham Street London W1T 2AF
Registered in England No. 04551928

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