As part of monitor sampling, the monitor collects resource utilization information for the major JES2 resources. The monitor also collects the low, high, average, and current utilization of each resource and reset it at the start of every hour. Use the $JD DETAILS command to display this information. Though this command displays information similar to some JES2 display command, it provides a single command that can display the information even when JES2 is not responding to normal commands.

Similar to resource utilization, the monitor maintains statistics on JES2 main task CPU samples. The samples are broken down into a number of major categories. The sampling statistics for the current hour can also be displayed in response to the $JD DETAILS command.