NetApp
7-mode/HA pair/V-Series : Configuration : Network : DNS : Configuring DNS : Enabling and disabling dynamic DNS
Enabling and disabling dynamic DNS
You can use the Edit DNS Configuration dialog box to enable and disable dynamic DNS on your storage system. Dynamic DNS is disabled by default.
Steps 
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Click Configuration > Network > DNS.
3.
Click Edit.
4.
Click the Dynamic DNS tab.
5.
Select the Enable dynamic DNS check box and click OK or clear the Enable dynamic DNS check box and click OK.