Database disaster recovery, sometimes also lumped into the broader category of business continuity planning, is a topic that many EBS sysadmins seem to struggle with. Oracle Data Guard
is a set of services that create, manage, and monitor one or more standby databases to enable a primary database to survive disasters and data corruption. If the primary database becomes unavailable because of a planned or an unplanned outage, Oracle Data Guard can switch a standby database to the primary role, minimizing the downtime.
We've previously published EBS-specific documentation covering this for 10gR2 databases:
Our EBS database architects have recently updated that documentation to cover physical standby for both the 11gR1 and 11gR2 databases for E-Business Suite 12 environments. This updated documentation has been streamlined and updated with our latest recommendations for disaster recovery environments using physical standby. It's published here: