Create nested igroup
Beginning in ONTAP 9.9.1, you can create an igroup that consists of other existing igroups.
In ONTAP System Manager, click Host > SAN Initiator Groups, and then click Add.
Enter the igroup Name and Description.
The description serves as the igroup alias.
Select the Storage VM and Host Operating System.
The OS type of a nested igroup cannot be changed after the igroup is created.
Under Initiator Group Members select Existing initiator group.
You can use Search to find and select the initiator groups you want to add.