When zoning a new host to a storage array, which of the following is the BEST unique identifier to be included in the zone?

The N-port ID is a dynamic address assigned by the fabric and can change, making it unsuitable for persistent zoning.

While a Worldwide Node Name (WWNN) is unique to a device, zoning is typically done at the port level (WWPN) for more granular control, especially when a node has multiple ports.

The Worldwide Port Name (WWPN) is a globally unique identifier assigned to each Fibre Channel HBA port (initiator) and storage port (target). Using the WWPN in zoning creates highly secure and persistent 'hard zoning,' as it is tied directly to the physical port, making it the most reliable identifier for establishing specific device connections.

The Worldwide Port Name of the switch port identifies the switch's physical port, not the end-device (initiator or target) that needs to be zoned to the storage array.