What is masking in SAN environments intended to do?

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What is masking in SAN environments intended to do?

Masking in SANs is about controlling visibility of LUNs from specific hosts. By mapping which initiators (hosts) can see which LUNs, the storage system ensures only authorized servers can access certain data, while other hosts don’t even discover those LUNs. This provides access control and isolation in a shared SAN environment, and is different from encryption at rest, logging, or automatic tiering.

Masking in SANs is about controlling visibility of LUNs from specific hosts. By mapping which initiators (hosts) can see which LUNs, the storage system ensures only authorized servers can access certain data, while other hosts don’t even discover those LUNs. This provides access control and isolation in a shared SAN environment, and is different from encryption at rest, logging, or automatic tiering.

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