NetApp
7-mode/HA pair/V-Series : Configuration : System Tools : Licenses : Adding a license

Adding a license
If your storage system software was installed at the factory, System Manager automatically adds the software to its list of licenses. If your storage system software was not installed at the factory, you can add the software license from the Add License dialog box.
Before you begin 
You need the software license code to add a software license.
If you are adding a license to an active/active configuration, you only need to add the license to one storage system in the pair. System Manager automatically detects active/active configurations and installs the license on both storage systems when you add a license to one of the storage systems in the pair.
Steps 
1.
From the Home tab, double-click the appropriate storage system to display a subtree of management features.
2.
Click Configuration > System Tools > Licenses.
3.
Click Add to display the Add License dialog box.
4.
Enter the software license code and click Add.
Your software license is added immediately.