NetApp
7-mode/HA pair/V-Series : LUNs : Configuring LUNs : Deleting a LUN

Deleting a LUN
You can delete LUNs and return the space that they had used to their containing aggregates or volumes. You can delete a LUN only if the LUN is offline and no initiator hosts are mapped to the LUN.
Steps 
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Click Storage > LUNs.
3.
If the appropriate tab is not displayed, click LUN Management.
4.
Select one or more LUNs that are offline and click Delete.
5.
Select the check box and click Delete.
Parent Topic: Storage node