> is it that you want?
> I've come across a few mentions of Heartbeat being used for PostgreSQL
> failover, do have any links to more information about this?
If you're going to use Heartbeat on a 2-server setup, you should use DRBD for
the replication, not the PostgreSQL replication. DRBD basically does the
equivalent of RAID-1 mirroring between 2 servers.
http://www.linuxjournal.com/article/9074 is dated but probably still covers
everything you need to do to make it work.
If you have questions about setting this up, you should find a linux clustering
group to ask. It can be quite complex if you aren't very familiar with Linux
system administration, and this is not a good forum for the followups.