Database (DR)

The DR site requires the same installation of Oracle or PostgreSQL that you installed at the primary site.

If you installed Oracle at the primary site, you install Oracle at the DR site. You use Oracle Data Guard to configure replication between sites. For information on Data Guard setup, refer to the Oracle documentation at http://www.oracle-base.com/articles/11g/data-guard-setup-11gr2.php.
If you installed PostgreSQL at the primary site, you install PostgreSQL at the DR site. Use Streaming Replication to configure replication between sites. For information, refer to these locations:
- http://wiki.postgresql.org/wiki/Streaming_Replication
- http://www.rassoc.com/gregr/weblog/2013/02/16/zero-to-postgresql-streaming-replication-in-10-mins/