4.2.3 Notes about starting and stopping monitoring
If monitoring agents are terminated individually while target services are being monitored, transmission of system performance data from the monitoring agents to ITSLM stops. If this happens, the system performance data existing immediately before monitoring was stopped remains displayed in ITSLM but no new system performance data is displayed. You must restart the monitoring agents to display the system performance data in ITSLM.
If monitoring is stopped forcibly, inconsistency occurs in the monitoring status between ITSLM and Performance Management and data obtained after monitoring stopped might be sent from Performance Management.
In such a case, a message indicating that the transmitted data is to be discarded is output repeatedly in ITSLM. Therefore, if you stopped monitoring forcibly, you must cancel the ITSLM monitoring setting in Performance Management.