The easiest way I found to obtain that visibility was to have an AD account added to the Read / Only admin group in VCenter. That will pull in the VCenter view into the Virtualization portion of NPM. You will then have to either conduct a sonar discovery or select each VM within the new VCenter view and import them for monitoring. Hope this helps
That is the part I cant make sense of in my setup. We have admin and read_only group set up in vCenter. I have a user in read_only group and I use that cred in the above "assign credential" window, resulting in a failure. So I am not sure if theres a role that need to be enabled for this to work?