The Set CPU Resources for VM action is used to modify the CPU reservation and CPU limit on virtual machines. You modify the CPU reservation and limit to manage workload demands in your environment.

How the Action Works

The Set CPU Resources for VM action determines how CPU resources can be allocated to the virtual machines. The reservation limit is the minimum amount of guaranteed CPU resources allocated to the virtual machine. The limit is the maximum amount of CPU resources that the virtual machine can consume.

To run the action, all options where you configure a value must contain a value for the objects that you want to change. If you are changing one option to a new value, but not another option, ensure that the option that you are not changing is configure with the current value.

Where You Run the Action

For the supported objects and object levels, this action is available in the following locations in vRealize Operations :
  • Embedded just below the top menu.
  • From the left menu click Environment > Object Browser, select an object, click the Details tab, and click Views.
  • From the left menu click Environment > Object Browser. Select an object, click the Environment tab, and select an object in the list view.
  • From the left menu click Environment and then click Inventory. Select an object in the list.
  • In configured alert recommendations.
  • In the Object List and Topology Graph dashboard widgets.

Action Options

To ensure that you are submitting the action for the right objects, review the following information.

Option Description
Selected objects

Check box indicates whether the action is applied to the object. To not run the action on one or more objects, deselect the associated check boxes. This option is available when two or more objects are selected.

If you modify a value, the check box is selected. The check box must be selected to activate the OK button.

Name

Name of the virtual machine as it appears in the environment inventory.

New Resv (MHz)

Amount of CPU resources in megahertz reserved for the virtual machine when the action is finished. The new reservation value must be less than or equal to the new limit value unless your new limit is unlimited (-1).

The reservation supports the following possible values:

  • If you set the value to 0, the virtual machine is allocated only the configured CPU consumption level.
  • If you add or removed reserved CPU consumption, supply a positive integer unless you set the value to 0.
Current Resv (MHz)

Amount of CPU resources that is configured as the guaranteed CPU resources for the virtual machine.

New Limit (MHz)

Maximum amount of CPU consumption in megahertz that the virtual machine can consume when the action is completed.

The limit supports the following possible values:

  • If you set the value to 0, the maximum CPU consumption is not greater than the allocated reservation amount.
  • If you set the value to -1, then the virtual machine CPU consumption is unlimited.
  • If you add or remove CPU consumption limits, supply a positive integer, unless you set the value to 0 or -1.
Current Limit (MHz)

Maximum amount of CPU that the virtual machine can consume.

Host

Name of the host on which the virtual machine is running.

Adapter Instance

Name of the VMware Adapter as it is configured in vRealize Operations. The adapter manages the communication with the vCenter Server instance.

After you click OK, the next dialog box provides the task ID and a link to the task list.

Table 1. Task ID Dialog Box
Option Description
Recent Tasks To view the status of the job and verify that the job finished, click Recent Tasks.
OK To close the dialog box without further action, click OK.