NetApp
Configuration : Protocols > iSCSI : Configuring iSCSI : Deleting target portal groups
Deleting target portal groups
You can delete one or more user-defined target 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. You cannot delete system-defined portal groups.
Steps 
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Configuration > Protocols > iSCSI.
3.
In the Target Portal Group tab, select the target portal group that you want to delete and click Delete.
4.
Select the confirmation check box and click Delete.
Related reference 
iSCSI window

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