Hey everybody
Just wanted to let you know that everything worked out now. After uninstalling SD and SMHV and then installing OnCommand Host Package all Host Services including the cluster name were registered and authorized in the OnCommand console and the first snapshot backup ran successfully last night, consisting of 27 VMs distributed over three CSVs!
Now I ough out figure out configuring the automatic transfer of the snapshots from primary to secondary via SnapVault.
Although NetApp persists on the simplicity of policy-driven management, I find the dependencies between schedules, datasets, resourcepools, storage services and protection schedules quite complex.
But thats another topic...
Thank you everybody for trying to help with my issue!
Kind regards
Lyndon