NetApp
Vserver : Storage > LUNs : Configuring LUNs : Deleting LUNs

Deleting LUNs
You can delete LUNs and return the space that they had used to their containing aggregates or volumes. You can also delete the LUN-containing volume if it has no other LUNs, files, or directories.
Before you begin 
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Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
3.
In the navigation pane, select the Vserver and click Storage > LUNs.
4.
In the LUN Management tab, select one or more LUNs that you want to delete and click Delete.
5.
Select the confirmation check box and click Delete.