NetApp
7-mode/HA pair/V-Series : Configuration : Protocols : iSCSI : Configuring iSCSI : Deleting a target portal group
Deleting a target portal group
You can delete one or more user-defined target portal groups, but not system defined portal groups. Deleting a target portal group removes the group from the storage system. Interfaces that belonged to the group are returned to their individual default target portal groups.
Steps 
1.
From Home, double-click the appropriate storage system to display a subtree of management features.
2.
Click Configuration > Protocols > iSCSI
3.
Select a user-defined target portal group and click Delete.
The system displays a confirmation window.
4.
Select the check box and click Delete.