Delete an iSCSI Initiator Group Using the Array OS GUI

You can use the array OS GUI to delete an iSCSI initiator group.
  1. Choose Manage → Data Access.
  2. On the Initiator Groups page, check the box to the left of the iSCSI group you want and click Delete.
  3. Click OK to confirm.
  4. Manually break the existing connections with the client.