In larger ONTAP clusters, what is the cluster interconnect used for?

• A. It connects cluster nodes to coordinate operations
• B. It stores the root volume
• C. It handles user authentication
• D. It performs data deduplication

Answer: (B)

In ONTAP clusters, the cluster interconnect is the dedicated network that links the cluster nodes so they can talk to each other and keep the cluster state synchronized. This low-latency path is what enables coordinating operations across the whole cluster, such as health checks, cluster membership, failover decisions, and overall control messages that ensure all nodes act as a single system. It isn’t used to store data like the root volume, nor is it the path for user authentication or data deduplication services—the root volume and these other functions are handled by storage and services on the nodes themselves. So the cluster interconnect’s role is to connect cluster nodes to coordinate operations.