Hi guys,
i have chosen "VMware vSphere" from the drop-down menu of OnCommand Unified Manager dowload website. When I choose "7.2 and above", I am able to download 7.3 ova template. I haven't seen that the first time I downloaded ocum. That's the reason, why I startet with version 7.1.
Now I have installed version 7.3 and it's working without problems. Now I get all the health and performance data. Thanks for your help, I really appreciate that!
I just have one more question:
When I have a look at the information page of a netapp-node, there are some information about the flash-cache module (NVMe ssd). But the status of the flash-cache is "NOT_MAPPED". Does anyone know, if that is a problem?

@juliad What I forget to say is, that I first installed ocum and then ocpm. Afterwards I started the integration process of ocum and ocpm. The last step was to add the cluster once to ocum and it was automatically mapped to ocpm as well. I restartet both server, but still no perfromance data. But now with ocum 7.3 it's working great.
Thanks a lot and best regards