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How to determine whether SLM is enabled on a LUN map

If your environment has a combination of LUNs created in Data ONTAP 8.3 and LUNs transitioned into Data ONTAP 8.3 from previous versions, you might need to determine whether Selective LUN Map (SLM) is enabled on a specific LUN.

You can use the information displayed in the output of the lun mapping show -fields reporting-nodes, node command to determine whether SLM is enabled on your LUN map. If SLM is not enabled, "-" will be displayed in the cells under the reporting-nodes column of the command output. If SLM is enabled, the list of nodes displayed under the nodes column will be duplicated in the reporting-nodes column.