You can use the Create Initiator Group dialog box to create a new initiator group. Initiator groups enable you to control which hosts can access which LUNs.
Steps
1.
From the Home tab, double-click the appropriate storage system.
2.
In the navigation pane, click Storage > LUNs.
3.
Click Initiator Groups, then click Create.
4.
In the General tab, specify the initiator group name, operating system and supported protocol for the group.