VM/CMS CP SYSTEM Command
Simulation of the RESET and RESTART console buttons are done with the SYSTEM command
Priviledge Class G
The SYSTEM commands provides a way to simulate the RESET and RESTART buttons found on a real S/370 console. It
also provides a means of clearing all virtual storate assigned to your VM to binary zeros along with the
associated storage keys.
Reference the detailed IBM manaul page here.
The VM is left in a disabled wait state after using the CLEAR and RESET function of this command.