"Magnus Hagander" <mha@sollentuna.net> writes:
>> I have not probed further than the site's top page, but
>> unless DRBD offers some pretty strong guarantees about
>> physical write order on the master being duplicated on the
>> slave, it won't work reliably for Postgres.
> From what I've heard, it does guarantee this. I think it requires you to
> put all your stuff on the same DRBD device (no special device for WAL).
That would seem pretty likely --- I don't see how a block-level driver
could synchronize operations occuring on different devices.
regards, tom lane