A storage administrator would like to make storage available to some hosts and unavailable to other hosts. Which of the following would be used?

LUN masking operates at the storage controller or HBA level to restrict which initiators (hosts) are permitted to see and access each LUN, effectively making storage volumes visible to authorized hosts while hiding them completely from unauthorized hosts. This is the standard SAN feature for enforcing host-level storage access boundaries.

Deduplication removes redundant data blocks to reduce consumed capacity and has no role in controlling which hosts can access which storage volumes.

Multipathing establishes multiple redundant I/O paths between a host and storage array to improve availability and throughput, not to restrict or grant access.

Snapshots create point-in-time copies of data for backup and recovery purposes and do not control host-to-LUN access permissions.