z/VM Virtual Server pane: Overview page

Use the Overview page to view general information about a z/VM virtual server. You can also change the name and description for the z/VM virtual server.

Introduction

Most of the parameters shown on this page cannot be changed. They are set on the virtual server template on which the z/VM virtual server is based.

Fields

z/VM Virtual Server
Name that z/VM Center uses for the z/VM virtual server. The default is made up of two parts:
  • The z/VM system ID
  • A z/VM user ID. To z/VM, the z/VM virtual server is the guest virtual machine with this user ID.

You can change the default by typing any name that is meaningful to you. Changing this name does not change the IDs used by z/VM.

Status
Indication of the system status:
Status: Active
A green upward-pointing triangle indicates that the virtual hardware is available and running.
Status: Inactive
A red downward-pointing triangle indicates that the virtual hardware is unavailable.
Status: Unknown
A grey square with a question mark indicates that the status of the virtual hardware cannot be determined. Click Refresh to obtain the current status.

You can activate a z/VM virtual server that is unavailable and you can deactivate a z/VM virtual server that is running. To change the status of a z/VM virtual server, select and right-click it in the z/VM System resource tree; then click Activate or Deactivate, as applicable.

User ID
A z/VM user ID. To z/VM, the z/VM virtual server is the guest virtual machine with this user ID. You cannot edit this field.
Password
Toggles between hiding and showing the directory password for the user ID in the User ID field.

This password is applicable only for installations that do not use Resource Access Control Facility (RACF) for security. You need this password only if you want to use a 3270 terminal to log on to the z/VM guest virtual machine with the user ID of the User ID field.

User Class
Defines the privileges that the z/VM virtual server has on the z/VM system. Consists of one or more characters where each character can occur once only. The characters must be uppercase alphabetic (A-Z) characters or numeric characters in the range 1-6.

Classes A-H are predefined but can be modified by a system administrator for a particular installation; the remaining classes are always installation-specific. Refer to CP Planning and Administration, SC24-6083, chapter 16 "Redefining Command Privilege Classes" for details.

Running OS
Name of the operating system instance that is running on the z/VM virtual server. "Inactive" indicates that no operating system is running or that z/VM Center is not aware of an operating system on the z/VM virtual server. You cannot edit this field.
Assigned Share
Proportion of processor cycles guaranteed to the z/VM virtual server in times of resource contention. The assigned share can be:
absolute:
Percentage of all cycles available to the z/VM virtual servers that are provided by the z/VM system.
relative:
Percentage as compared to an equal share among all z/VM virtual servers. 100% would represent an average share.
You cannot edit this field.
Maximum Share
Maximum proportion of processor cycles that z/VM can assign to the z/VM virtual server. The maximum can be:
absolute:
Percentage of all cycles available to the z/VM virtual servers that are provided by the z/VM system.
relative:
Percentage as compared to an equal share among all z/VM virtual servers. 100% would limit the consumption to an average share.
This field is blank if no maximum share has been set. You cannot edit this field.
Limit
Determines how the limit of the Maximum Share field is applied:
soft
Means that the limit is applied only if there is contention for processor capacity.
hard
Means that the limit is applied regardless of free processor capacity.
This field is blank if the maximum share field is blank. You cannot edit this field.
Description
Optional: You can type a description of the z/VM virtual server in this field. You can edit and extend an existing description.
Save
Saves all changes you have made on any of the notebook pages.
Refresh
Refreshes all fields on all notebook pages with their current values and discards any changes you have not already saved.
(C) Copyright IBM Corporation 1999,2005. All Rights Reserved.