NetApp CIFS integration with Data Governance Edition 8.1.5

Hello all,

I'm trying to integrate a NetApp CIFS host with DGE 8.1.5. While the host is not integrated under the Host Type column it remains "Unknown host type"; when I try to integrate it as a NetApp CIFS this is not possible because One Identity redirect as to integrate it as a Generic Host Type. Perhaps in this case we cannot receive any resource activity and no FPolicy is deployed.

We have analyzed the server in AD and we have noticed that the field "OperatingSystem" appears empty. Maybe is this the problem? 

In order to integrate it as NetApp CIFS which are the fields that OneIdentity requires from the server as mandatory for integration?

Thank you, Miriam