Trouble connecting new vSphere server to checkmk

[andreas-doehler (Andreas)]

@openmindz

In order to get all monitoring data I want, including performance data (CPU/RAM usage) of the ESXi host(s) in question, I have to monitor both: the vCenter, and the hypervisor(s). Additionally, this is the only way I see to get the “Hardware Sensors”, the “Maintenance Mode” and the “Overall State” services for each ESXi host.

This is all possible with only querying the vCenter. There is only one exception - System Time. This check is only working for the vCenter time if you get all the data from vCenter.
Until 1.6 agent the performance data was missing for the ESX hosts.
Give it a try. Turn on all options for the vCenter and look what comes back.
Before i extended the 1.5 agent to also get the performance data from vCenter as i had an infrastructure to monitor with 150 ESX servers and the responsible person told me - no local users are created on the servers.