Incremental backup with Postgres 7.3.2

Hi All,

 

Is it possible to set up incremental backups on Postgres 7.3.2?

 

From what I have read so far, I think archiving WAL logs and the database file system is the key to achieving incremental backup, but I am not really sure on how to go about it. Can someone please point me to some good online reading material on this?

 

Thanks,
Sincerely,
Saranya