AutoSupport is the primary troubleshooting tool used by NetApp to support ONTAP Select.
The best way to manage Ontap Select is through System Manager.
HA, Usermapping, and snapmirror still deliver the same features but are virtualized.
Below is Netapp ONTAP Select repository.
If you are working with ONTAP Select 9.7 or later, you can find the most current ONTAP Select documentation at
https://docs.netapp.com/us-en/ontap-select/
Illustration of the ONTAP Select networks and nodes
https://library.netapp.com/ecmdocs/ECMLP2600453/html/GUID-BC43C529-F228-49E4-AB3E-0B2A3B0FB857.html