Viewing Instances Information 
Use the System Information tab to display all instances and server processes of the current system and details about them – current state, ports, number of server processes (nodes) in the instance, VM parameters and kernel version.
Use the context navigation links to view more information about the VM parameters and settings in the Java System Properties tool.
Note
You can also start an instance.
Prerequisites
You have started the System Information tool.
Procedure
Viewing and Managing Instances
In the Instances screen area, you can view a list of all installed instances of the system, together with their host.
Select an instance and see detailed information for it displayed in Details screen area.
To start the instance, from the More Actions button, choose Start Instance (if the option is available).
You are navigated to the Start and Stop:Java Instances tool.