ORA-38853: cannot mark instance [string] (redo thread [string]) as disabled

Cause: The standby switchover or failover operation failed because it needs to mark an instance (redo thread) as disabled. That instance was up, which prevented it from being disabled.

Action: Shut down the specified instance and retry this command.

Error Type: ORA

• Additional information for ORA-38853: cannot mark instance [string] (redo thread [string]) as disabled38853
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