About LUN Zoning and Assigning LUNs to Storage Subsystems
Logical unit number (LUN) zoning is a feature specific to switches in the Cisco MDS 9000 family. A storage device can have multiple LUNs behind it. If the device port is part of a zone, a member of the zone can access any LUN in the device. When LUN 0 is not included within a zone, then, as per standards requirements, control traffic to LUN 0 (for example, REPORT_LUNS, INQUIRY) is supported, but data traffic to LUN 0 (for example, READ, WRITE) is denied. With LUN zoning, you can restrict access to specific LUNs associated with a device. LUN masking and mapping restricts server access to specific LUNs. If LUN masking is enabled on a storage subsystem, and if you want to perform additional ...
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