Core Issue
On a Cisco CallManager cluster, when an attempt is made in order to add the Music on Hold (MOH) counters in the Microsoft Performance Monitoring Tool (Perfmon), they appear as unavailable. In Start > Programs > Administrative Tools > Performance, when Add Counter (+) is clicked and Cisco MOH Device is chosen under Performance Object select, Select Instances From List shows the instances of the devices only if they are registered to that particular Cisco CallManager, otherwise this tab appears as unavailable.
Resolution
The unavailable Perfmon counters are not an issue on the other Cisco CallManager servers, because this Works as Design (WAD). The Perfmon counters only display on the Cisco CallManager to which the MOH devices are registered and not on all the Cisco CallManager servers.
Refer to Music On Hold for more information on the MOH.
For more Information Troubleshooting Perfmon Data Logging.
Problem Type
Call control software (CallManager, CallManager Express, ICS7750, SRST, SS7 call agents)
Call Control
CallManager
CallManager Features
Music on hold (MoH)
Failure Type
Performance
Troubleshooting Tools
Perfmon
Real-time monitoring tool (RTMT)
CallManager Versions
CallManager 4.x
User Interfaces
Graphical user interface (GUI)
