Access the Java Virtual Machine page.
Click WebSphere Administrative Domain > Nodes > NodeName > Application Servers > server name (whose JVM settings you want to configure [MonitorServer] in the console navigation tree).
Select the JVM Settings tab.
On the Java Virtual Machine tab, specify values for the JVM settings as needed. Specify command-line arguments to pass to the Java virtual machine code that starts the application server process in a name-value pairs:
Click Add to enter an entry in the System Property table.
Specify name/value pair property: for example type monitor.debug.level (or monitor.debug.cateogory) in the Name field, and type the value in the Value field.
Click Apply to view a page with your new settings.
Restart the application server.