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Scenario: You have a Cloud SQL for PostgreSQL instance in Region1 with one read replica in Region2 and another read replica in Region3. An unexpected event in Region1 requires you to perform disaster recovery by promoting a read replica in Region2. Before switching over the connections, you need to ensure that your application has the same database capacity available. Question: What should you do to ensure your application has the same database capacity before switching over the connections after promoting the read replica in Region2?