Oracle Site Guard can be used for switchover or failover from an NMS instance at one site (logical grouping of software components and associated hardware that run one or more user applications) to an NMS instance at another site (for instance, Disaster Recovery). It is also required for Failover Patching, which is a mechanism for installing patches with almost zero downtime described in Chapter 3 of the Oracle Utilities Network Management System Installation Guide. Oracle Site Guard is a part of Oracle Enterprise Manager.

It includes the following topics: