An administrator would like to connect a server to the local VSAN fabric. Which of the following would MOST likely need to be installed in the server?

A VSAN (Virtual Storage Area Network) is a logical partitioning of a physical Fibre Channel (FC) SAN. To connect a server to an FC-based VSAN fabric, a Fibre Channel Host Bus Adapter (FCHBA) must be installed in the server to provide the necessary physical and protocol interface.

A SAS expander is used to connect multiple SAS drives to a single SAS controller, typically within a server or storage enclosure, not to connect a server to a SAN fabric.

An iSCSI controller, or iSCSI HBA, is used to connect to an iSCSI storage area network, which operates over standard Ethernet, not a Fibre Channel VSAN.

A TOE (TCP Offload Engine) card offloads TCP/IP processing from the server's CPU to the network adapter, improving network performance, but it is not used for connecting to a Fibre Channel SAN or VSAN.