A company wants the most scalable host-side connection topology for E-Series systems.

Fabric attachFC topology is the most scalable host-side connection topology for E-Series systems.

This topology involves connecting the E-Series storage system to a Fibre Channel switch, which then connects to the hosts.

Scalability: The fabric attach topology supports a large number of devices by allowing multiple switches to be interconnected, forming a fabric.

Redundancy: It offers higher redundancy and failover capabilities because multiple paths can be created between the hosts and the storage.

References: NetApp Documentation (NetApp E-Series SANtricity Software, Implementation and Planning Guide).