LUN masking is used for what purpose?

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LUN masking is used for what purpose?

LUN masking controls which hosts can see and access specific LUNs on a storage array. By masking, only approved initiators are allowed to view or use a given LUN, enforcing visibility and access permissions. This is essential for security and data integrity in environments where multiple hosts share storage, because it prevents accidental or unauthorized access to data on other LUNs. The masking is typically configured on the storage array and tied to the host's initiator identifiers (IQNs/WWNs). It is not intended to improve performance, nor to convert LUNs into virtual disks, nor to assign LUNs to all hosts equally. By masking, only approved hosts see and can access the LUN, while others do not see it at all.

LUN masking controls which hosts can see and access specific LUNs on a storage array. By masking, only approved initiators are allowed to view or use a given LUN, enforcing visibility and access permissions. This is essential for security and data integrity in environments where multiple hosts share storage, because it prevents accidental or unauthorized access to data on other LUNs. The masking is typically configured on the storage array and tied to the host's initiator identifiers (IQNs/WWNs). It is not intended to improve performance, nor to convert LUNs into virtual disks, nor to assign LUNs to all hosts equally. By masking, only approved hosts see and can access the LUN, while others do not see it at all.

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