A vCenter Hyperic agent monitors itself. You can tailor the metric collection settings for an agent, use agent metrics to troubleshoot problems, and base alerts on agent metrics or events.

The metrics that an agent reports for itself are:

Availability

JVM Free Memory

JVM Total Memory

Number of Metrics Collected Per Minute

Number of Metrics Sent to the Server Per Minute

Server Offset

Total Time Spend Fetching Metrics per Minute