CV0-003 · Question #71
Which of the following is the BEST process to provide data access control to only the hosts authorized to access the LUN?
The correct answer is B. LUN Masking. LUN Masking is a storage access control method that restricts which host initiators can see and connect to specific LUNs, ensuring only authorized hosts gain access to sensitive storage volumes.
Question
Which of the following is the BEST process to provide data access control to only the hosts authorized to access the LUN?
Options
- ARAID Masking
- BLUN Masking
- CRAID Mirroring
- DLUN Binding
How the community answered
(47 responses)- A2% (1)
- B89% (42)
- C2% (1)
- D6% (3)
Why each option
LUN Masking is a storage access control method that restricts which host initiators can see and connect to specific LUNs, ensuring only authorized hosts gain access to sensitive storage volumes.
RAID Masking is not a recognized or standard storage technology - it does not exist as a defined concept in storage architecture.
LUN Masking filters storage access by associating specific LUNs with authorized host bus adapters (HBAs) identified by their World Wide Name (WWN) or iSCSI Qualified Name (IQN). Only hosts whose identifiers are included in the masking configuration can discover and mount the LUN on the storage array. This prevents unauthorized hosts sharing the same SAN from seeing or accessing protected volumes.
RAID Mirroring (RAID 1) duplicates data across multiple disks for fault tolerance and redundancy, providing no mechanism to control which hosts can access a LUN.
LUN Binding associates LUNs with specific storage array ports or controller paths for load balancing and performance optimization, not for restricting which hosts are authorized to access data.
Concept tested: LUN masking for SAN host access control
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