Warren is a systems administrator working in a corporate data center, and he has been tasked with hiding storage resources from a server that does not need access to the storage device hosting the storage resources. What can you configure on the storage controller to accomplish this task?
A. Zoning
B. LUN masking
C. Port masking
D. VLANs
Answer: B
Logical Unit Number Masking or LUN masking is an authorization process that makes a Logical Unit Number available to some hosts and unavailable to other hosts.
LUN masking is executed at the storage controller level instead of at the switch level. By providing LUN-level access control at the storage controller, the controller itself enforces access policies to the devices. LUN masking provides more detailed security than zoning because LUNs allow for sharing storage at the port level.
Zoning controls access from one node to another. It enables isolation of a single server to a group of storage devices or a single storage device, or associates a set of multiple servers with one or more storage devices.
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