Which feature coordinates MetroCluster operations to enable automatic failover?

• A. BlueXP observability
• B. Active IQ Unified Manager
• C. Data Broker
• D. ONTAP Mediator service

Answer: (D)

MetroCluster relies on a mediator to coordinate automatic failover. The ONTAP Mediator service runs as a dedicated coordination point between the two clusters, acting as a tie-breaker that exchanges heartbeat and state information. This coordination ensures both sites agree on health and readiness before a failover occurs, preventing split-brain and preserving data integrity during the switch. The other tools provide visibility or management capabilities but do not perform the real-time coordination required for automatic MetroCluster failover. So, the ONTAP Mediator service is the component that enables automatic failover.