Two storage arrays in distant datacenters are required to communicate via the same subnet, which of the following technologies would facilitate this?

NPIV (N-Port ID Virtualization) is a Fibre Channel technology that allows a single physical HBA port to register multiple virtual N-Port IDs, primarily for virtualization within a SAN, not for extending subnets across datacenters.

VSAN (Virtual Storage Area Network) is a Fibre Channel feature that partitions a single physical SAN into multiple isolated logical SANs, providing isolation within a SAN, but it does not extend a subnet across geographically distant datacenters.

A Virtual Local Area Network (VLAN) allows for logical segmentation of a network and can be extended over distant datacenters using Data Center Interconnect (DCI) technologies, such as OTV or EVPN. This effectively makes devices in different physical locations appear to be on the same Layer 2 subnet, facilitating communication that requires Layer 2 adjacency.

FCoE (Fibre Channel over Ethernet) encapsulates Fibre Channel frames into Ethernet frames, allowing SAN traffic over standard Ethernet, but it does not inherently extend a single subnet across distant datacenters.