joe.peterson, we were able to reproduce the issue you are experiencing internally. The problem is a missing/broken performance counter on your Exchange server. Please follow the steps outlined below to repair these missing performance counters.
- Closed all PerfMon windows.
- Copy missing performance counter files from source DVD to C:\Program Files\Microsoft\Exchange Server\V15\Setup\Perf.
- Files included:
- IndexAgentPerfCounters.h
- IndexAgentPerfCounters.ini
- IndexAgentPerfCounters.xml
- Files included:
- Open elevated instance of PowerShell (RunAs Administrator)
- Run the following command:
- New-PerfCounters -DefinitionFileName "C:\Program Files\Microsoft\Exchange Server\V15\Setup\Perf\IndexAgentPerfCounters.xml".
- Check Windows Application Log to verify performance counters loaded properly.
Once the above steps are completed, click "Poll Now" for this application in the Orion web console and within a few minutes this counter should no longer be in an unknown state.