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Oracle Data Guard 11gR2 Administration Beginner's Guide by Nassyam Basha, Emre Baransel

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Time for action – switchover with a physical standby using broker

  1. If the primary database is RAC and you perform switchover with the broker, it will shut down all the remaining instances except one; and if there are any issues in terminating the instances, the switchover will exit without success. So ensure that all the primary instances are down except the one.
  2. Even though the broker will verify the state of the both the primary and standby databases, it's recommended to check the database state manually as follows:
    DGMGRL> show configuration;
    Configuration - PACKT
      Protection Mode: MaxPerformance
      Databases:
        turkey_un - Primary database
        INDIA_UN  - Physical standby database
    Fast-Start Failover: DISABLED
    Configuration Status:
    SUCCESS
    
  3. Now connect ...

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