The cdm probe is unable to collect CPU or Memory metrics on a Windows server. You may see errors similar to the following in the cdm.log file at loglevel 5:
cdm: CheckCpuInfo - GetCpuInfo failed (error)
cdm: ntgetuptime: Unable to get the 'System Up Time' counter of the 'System' performance object
The cdm probe fetches performance objects for Processor, Memory and System directly on Windows servers (Windows perfmon utility). If the probe is unable to retrieve the values of these counters, QoS metrics cannot be collected.
Reset all the performance counters by executing the following command on your Windows server in a cmd prompt window:
cd c:\windows\system32
lodctr /R
cd c:\windows\sysWOW64
lodctr /R
You MUST reboot the Windows Server for the change to take effect.
Also via regedit, take note of:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\PerfProc\Performance
In this key, there could be a Disable Performance Counters value that is set to 1. You may have to reset that value to 0, and then Deactivate and Activate the cdm probe.
Microsoft Technical note:
Microsoft Counter Library rebuild:
[How to manually rebuild Performance Counter Library values]
1. Deactivate the probe
2. Delete the probe from the robot
3. Delete the physical folder from the robot server
4. Redeploy the probe again
5. Retest
Usethe Windows Performance Monitor to verify that the performance counter is present and returning data.