Database role failover or switchover is possible between an Oracle Database primary database and an Oracle Database standby database. When you use Oracle Database commands to change the role of Oracle Data Guard instances, the changes are not propagated to the Oracle Solaris Cluster resources that represent these instances. Therefore, you must also use Oracle Solaris Cluster commands to change extension properties of these resources to ensure that database instances are started in the correct role.
If an Oracle Solaris Cluster node fails while you are changing the role of an Oracle Data Guard instance, Oracle Solaris Cluster software might restart the instance in an incorrect role. To prevent this possibility, change the Dataguard_role extension property of the Oracle Database server resource that represents the instance to IN_TRANSITION.
# clresource set -p Dataguard_role=IN_TRANSITION server-rs
Dataguard_role
Standby_mode
The required combination of Dataguard_role and Standby_mode depends on the change of role, as follows:
# clresource set -p Dataguard_role=STANDBY -p Standby_mode=PHYSICAL server-rs
# clresource set -p Dataguard_role=STANDBY \ -p Standby_mode=LOGICAL server-rs
# clresource set -p Dataguard_role=PRIMARY server-rs
# clresource set -p Standby_mode=SNAPSHOT server-rs