Hi Fabian,
There is a bootarg that would be set when you first configure the system to be an ASA configuration. Similar to that of a system that is All Flash.
There is also an ONTAP command to check if the system is an ASA system.
Command: san config show
Link: Ways to identify an ASA system
With that being said, I am not sure if this requires a specific license from NetApp to be able to use the ASA feature. I would recommend talking to a NetApp Account rep for additional information on the AFF ASA systems.
Thanks
Team NetApp