Terminating the monitor system and VM2000

Because of the technical implementation of VM2000 (see "Implementation of VM2000"), termination of the monitor system has different effects on VM2000 and the Server Unit:

	On SU /390, the shutdown of the monitor system also terminates operation of VM2000 and the Server Unit.
	On SU x86, VM2000 operation is terminated when the monitor system shuts down. The firmware component of the monitor system continues to run after the latter has shut down until the Server Unit has been shut down. The Server Unit also continues to operate after the monitor system has shut down; it can be shut down using the SE Manager.

A new IPL can then take place on all Server Units.

Termination on SU /390

VM2000 and Server Unit operation are shut down on SU /390 in different ways:

• Using the VM2000 command /SHUTDOWN-VM VM-ID=*VM2000(...).
  This is the recommended way to shut down VM2000, see "Coordinated shutdown of VM2000" (coordinated shutdown of all guest systems and of the monitor system without restart).

• Using the BS2000 command /SHUTDOWN in the monitor system (see "Shutdown in the monitor system") or by means of the action BS2000 Shutdown for the monitor VM in the SE Manager. As the guest systems are not shut down under VM2000 coordination here, the operator must take precautions to ensure correct system shutdown in the monitor system.

Termination on SU x86

There are two reasons for regular termination of VM2000 operation on SU x86:

• The Server Unit is to be shut down.
  Shutdown of the server unit is initiated via the SE manager, see manual “Operation and Administration” [19].
  Time-driven startup and shutdown of the Server Unit can also be configured via the SE manager.

  Every BS2000 guest system then receives a signal and shuts itself down, i.e. the shutdown action which is specified in the system parameter SHUTPROC of the guest system is initiated (default value: “immediate shutdown without a restart”). When all BS2000 guest systems have been shut down or when half of the remaining runtime which is set has elapsed, the shutdown is initiated in the monitor system, i.e. the shutdown action defined there is executed. Alternatively, a coordinated shutdown of VM2000 can be executed beforehand, see "Coordinated shutdown of VM2000".

  Finally carrier system operation is terminated and the Server Unit is switched off.

• The operating mode “Native operation” is to be switched to (see "Operating modes").
  In this case VM2000 operation must first be terminated (preferably by means of a coordinated shutdown of VM2000, see "Coordinated shutdown of VM2000"). Only then can the operating mode be changed.

VM2000 operation is also terminated using the BS2000 command /SHUTDOWN in the monitor system (see "Shutdown in the monitor system") or by the action BS2000 Shutdown for the monitor VM in the SE Manager. As the shutdown of the guest systems is not coordinated by VM2000 here, the operator must specify measures in the monitor system to ensure that VM2000 operation terminates correctly.