Yannick Lecaillez wrote:
> What need to do (understand, to devel) to allow several
> postgres instance running from several server to access to the
> same data (no replication at all) hosted on a SAN ?
This is impossible.
You can use a SAN if only one node is active at a time, and that is
indeed a good high-availability solution that is usually easier to set
up and maintain than replication, but you can't have several instances
running on the same data at once.