disaster recovery

We are evaluating Postgres and would like some input about disaster recovery.  I know in MsSQL they have a feature
calledtransactional 
logs that would enable a database to be put back together based off those logs.  Does Postgres do anything like this?
Isaw in the documentation 
transactional logging but I don't know if it is the same.  Where can I find info about disaster recovery in Postgres.
Thankyou in advance 
for any info given.

Jason Tesser
Web/Multimedia Programmer
Northland Ministries Inc.
(715)324-6900 x3050