Performance Manager Method Interaction

You can use the UpdateCounterLevelMapping method to change the collection level for individual counters. You can also use the UpdatePerfLevel method to change the collection level for the system-defined performance intervals. These methods can cause a significant increase in the amount of data collected and stored in the vCenter database.

By default the system-defined performance intervals use collection level one, storing data for all counters that specify collection level one. If you use the UpdateCounterLevelMapping method to change the collection level of performance counters to level one, you will increase the amount of stored performance data.
If you use the UpdatePerfLevel method to increase the collection level for the system-defined performance intervals, you will increase the amount of stored performance data.

To restore counter levels to default settings use the ResetCounterLevelMapping method.