DRBD

Posted Nov 21, 2010 10:41 UTC (Sun) by dlang (guest, #313)
In reply to: DRBD by butlerm
Parent article: Comparing MySQL and Postgres 9.0 Replication (TheServerSide)

since the postgres built-in replication is shipping the WAL log over, if you get just a bit behind you should be able to catch up.

however the server doesn't keep the WAL log around forever, so I would expect that if you get so far behind that the master no longer has a copy of things you have to do a backup.

note that this is speculation, I'm not an expert here