I apologize if it has already been suggested. I already deleted the previous emails in this chain.
Have you looked into Barman? My current database is just a tad over 1TB. I have one master, two slaves, and another machine running Barman. The slaves are there for redundancy purposes. Master fails, a slave gets promoted. The backups are all done by Barman. This allows for PITR. I do not run any backup software on the database server, but I do on the Barman server. In Barman I keep a 7 day retention policy, then I have Bacula backing that up with a 1 month retention policy. So theoretically I could do a PITR up to a month in the past.
Thanks,
-Joseph Kregloh