What is the maximum number of cluster switches that can be used in a multinode switched cluster configuration?

In a multinode switched cluster configuration, the maximum number of cluster switches that can be used is two. This setup allows for a high level of redundancy and availability. Using two switches helps to facilitate the connections between multiple nodes while also ensuring that, in the event of a failure of one switch, the cluster can continue to operate using the other switch. This design choice is crucial for maintaining continuous access to the data and applications running on the cluster.

While it might seem feasible that using more than two switches could enhance availability or performance, the architecture of the NetApp clustered Data ONTAP system is specifically optimized for two switches. This maximum ensures a balance between performance, complexity, and maintainability, making two switches the optimal configuration for a multinode switched cluster.