Real time backup options.

I run a modest postgres database manualy edited (via a web fron end) by
3-4 people. So the number of transactions is comparativly low.

I'd like to set up some sort of real time backups

The problem is I only have one server to run postgers on so I suspect its
a bad idea to run two instances of postgres one running on a local hard
disk the other on a NAS disk and replecate between the two.

In terms of disaster recovery I don't need anything fancy. Just the
ability to restore from a weekly pg_dumpall then replay the subsiquent
transactions from a NAS disk.

What options should I look at? Am I reduced to turning the logging up to
11 and stripping out the non-SQL statements?

--
Michael
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Michael John Lush PhD Tel:44-1223 492626
Bioinformatician
HUGO Gene Nomenclature Committee Email: hgnc(at)genenames(dot)org
European Bioinformatics Institute
Hinxton, Cambridge
URL: http://www.genenames.org
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~