Disaster Recovery (DR) is the planning and implementation of processes to support the fail-over of specific services to an alternative location in the event of a disaster impacting the primary deployment location, typically (and in the case of Oracle) at the data center / regional level (see below for further definition).

The term "disaster" is formally defined in section 3 "ORACLE CLOUD SERVICE CONTINUITY POLICY" of the Oracle Industries Cloud Services Pillar Document. Without prejudice to that document (or to your legal agreement with Oracle), a "disaster" means an unplanned event or condition that causes a complete loss of access to the primary site used to provide the Industries Cloud Services such that Your production environments at the primary site are not available.