What can a systems administrator configure on the storage controller to hide storage resources from a server that does not need access?

LUN Masking is a technique used in storage area networks (SANs) that allows a systems administrator to control which server systems can access specific Logical Unit Numbers (LUNs) on a storage device. By implementing LUN Masking, the administrator can effectively restrict visibility and access to certain storage resources, ensuring that servers that do not require access to those LUNs are unable to see or interact with them. This enhances security and resource management within the storage environment, as it prevents unauthorized access to critical data and helps maintain organizational compliance.

Zoning, while a related concept in the context of SANs, mainly pertains to defining which devices (such as servers and storage devices) can communicate over the SAN fabric. Port Masking, similar in function, refers specifically to restricting access based on the physical ports that devices use to connect to the storage. VLANs are utilized in networking to subdivide the network into logical segments and do not specifically address access control for storage resources. Thus, LUN Masking is the precise method employed in this scenario to hide storage resources from unauthorized servers.