Michael, Appreciate your quick response. Thank you. I would like to know how is the "Shared Disk Failover" replication achieved if it is not possible to share the data directory ? I am referring to the 1st solution in the mentioned link, http://www.postgresql.org/docs/9.3/static/different-replication-solutions.html Regards Dina -- View this message in context: http://postgresql.nabble.com/Two-instances-of-Postgres-with-single-data-directory-tp5826788p5826972.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general