The following is the ORA-16574 error message, you can learn the cause and solution of the Oracle database error.

ORA-16574 switchover disallowed when required resources are offline

Cause: Switchover fails because the primary database resource and/or the designated standby database resource are offline.

Solution: Check the states of the configuration, primary site, primary database resource, standby site, and standby database resource. Set their states to ONLINE if necessary.


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