Re: Incremental Backups in postgres

On Tue, Nov 10, 2009 at 11:03 AM, Alban Hertroys
<dalroi@solfertje.student.utwente.nl> wrote:
> IMHO The simplest solution is to just write a dump to the same file every
> now and then and have the backup software take care of storing only the
> differences. It does have a few drawbacks; it means you'll have a file about
> as large as your database on your filesystem just for making backups and
> there is a risk that your backup software kicks in before the dump has
> finished writing.
>
> As others mentioned, you can also go with a PITR solution, which is probably
> prettier but is a bit harder to set up.

It's always worth having the dump, even if you also implement PITR.
The dump allows you to restore just specific tables or to restore onto
a different type of system. The PITR backup is a physical
byte-for-byte copy which only works if you restore the whole database
and only on the same type of system.


--
greg