You perform a switchover of an Oracle Data Guard protection group when you want to migrate services to the partner cluster in an orderly fashion. A switchover includes the following operations:
Application services are unmanaged on the former primary cluster cluster-paris.
For a reminder of which cluster is cluster-paris, see Example Geographic Edition Cluster Configuration in Oracle Solaris Cluster Geographic Edition System Administration Guide .
The data replication role is reversed and now continues to run from the new primary, cluster-newyork, to the former primary, cluster-paris.
For HA for Oracle configurations, the dataguard_role resource property is updated to reflect the new status of the new primary and standby clusters.
Application services and the shadow Oracle database-server resource groups are brought online on the new primary cluster cluster-newyork.