You can use System Manager to create an NVMe subsystem.
From the drop-down menu, select the SVM on which you want to create the subsystem.
Enter a name for the subsystem. The subsystem name cannot already exist in the SVM. The name is case-sensitive and is limited to 96 characters. Special characters are allowed.
From the drop-down menu, select the type of Host OS of the subsystem.
Enter the Host NQN attached to the controller. You can enter more than one Host NQN by separating them with commas.