Re: Clusters

Sean Chittenden <sean@chittenden.org> writes:
> together behind an SLB? Assume that all systems have a qlogic
> card, and are attached to a SAN, and that the SAN holds the
> data. Can PostgreSQL be configured to read from the SAN? Does each
> system have to initialize the DB?
>>
>> You can't do this safely.  PostgreSQL wants to control its disk.
>> Someone has said on the (?) -general list that he has modified the
>> PostgreSQL code to do this, but it makes me nervous.

> Didn't Tom say that it was possible if you had different WAL logs for
> each instance?

I said no such thing.  I said it will not work, period.

            regards, tom lane