When implementing an HA fabric, which of the following is the MINIMAL requirement for running cables from each fabric to a storage unit?

In a high availability (HA) storage design with multiple controllers, each controller must be reachable via both independent Fibre Channel fabrics (Fabric A and Fabric B). This ensures that if one fabric or one controller fails, the storage unit remains accessible through the alternate fabric and/or controller, providing fault tolerance and continuous operation.

Two connections to each controller port is not the minimal requirement for HA; a single connection from each fabric to each controller is sufficient.

Attaching both fabrics to only one controller would create a single point of failure for the other controller, compromising the HA design.

Separate protocols for each fabric are not a minimal requirement for HA in a Fibre Channel SAN, as both fabrics typically use Fibre Channel.