Activating and deactivating a z/VM virtual server

When you activate a z/VM virtual server z/VM provides the hardware resources according to its definition. If z/VM Center is aware of an operating system on the z/VM virtual server, the guest operating system is booted. You can think of activating or deactivating a z/VM virtual server as powering on or off the virtual hardware.

You can activate inactive z/VM virtual servers and deactivate active z/VM virtual servers. Deactivating gracefully shuts down the operating system. If the shutdown is not completed within a given time interval, the operating system is stopped by force.
Be sure that the time interval is set such as to allow for a regular shutdown for a functioning operating system. You can query this time interval on z/VM by issuing the QUERY SIGNAL SHUTDOWN control program command. You can use the SET SIGNAL SHUTDOWN command to change the time interval if necessary. See z/VM® CP Command and Utility Reference, SC24-6081 for details.

Complete these steps to activate or deactivate a z/VM virtual server:

  1. If it is not started already, start the Virtual Server Deployment task for the z/VM System you want to work with.
  2. In the z/VM System resource tree, expand the z/VM Virtual Servers node to display a list of z/VM virtual servers.
  3. Select the z/VM virtual server you want to activate or deactivate. The z/VM virtual server configuration is displayed in the right pane. The icon in the Status field indicates whether the z/VM virtual server is active or inactive.
  4. Proceed according to the action you want to perform:
    • If you want to start an inactive z/VM virtual server, select and right-click the z/VM virtual server; then click Activate. If z/VM Center is aware of an operating system on the z/VM virtual server Activate also boots this operating system.
    • If you want to deactivate an active z/VM virtual server, select and right-click the z/VM virtual server; then click Deactivate. You will be prompted to confirm that you want to deactivate the z/VM virtual server.
Related tasks
Starting the Virtual Server Deployment task

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