A new storage system with dual storage controllers is added to an HA SAN. The storage administrator attempts to zone a dual HBA host to the new storage system but can only connect to the first storage

Multipath software is for managing multiple paths to storage once they are established, but the current problem is about establishing initial connectivity to both controllers from both HBAs across fabrics.

The question states the link light is on for the fiber cable connecting the storage to the switch, implying the SFP connectors are functioning and connected correctly.

To ensure high availability and proper connectivity in a dual-controller, dual-HBA setup within an HA SAN, each storage controller must have at least one port connected to each Fibre Channel fabric, allowing both HBAs on the host to access both controllers through redundant paths.

The question implies the host HBAs are connected to the switch, as it's attempting to zone them, and the issue specifically describes a problem with controller connectivity across HBAs rather than host to switch connection.