"Mikko Partio" <mpartio@xxxxxxxxx> writes: > This was my original intention. I'm still quite hesitant to trust the > fencing devices ability to quarantee that only one postmaster at a time is > running, because of the disastrous possibility of corrupting the whole > database. Making that guarantee is a fencing device's only excuse for existence. So I think you should trust that a properly-implemented fence will do what it's claimed to do. On the other side of the coin, I have little confidence in DRBD providing the storage semantics we need (in particular guaranteeing write ordering). So that path doesn't sound exactly risk-free either. regards, tom lane ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings