Create or Modify Policy

Use this page to create or modify a relocation policy. On the General page, specify the policy name, thresholds to monitor, and other details. On the Relocation Domains page, you can optionally associate the policy with one or more relocation domains.

When a policy is associated with a relocation domain, WPAR Manager initiates a job that enables the policy on each managed AIX® system in the domain. The specified performance metrics are then monitored on all systems in the domain. When a policy violation occurs, WPAR Manager evaluates other systems in the relocation domain to determine whether performance can be improved by relocating one or more WPARs to other systems.

Complete the required fields that are marked with an asterisk (*) on each page, along with any optional fields that you want to specify.

Click OK when you are finished, to create or modify the policy, depending on which task you are performing.

The following links describe the fields on each page of the interface:

General

Use this page to specify basic information about the policy.

Fields

Policy name
Specifies the name of the policy.
Averaging period (minutes)
Specifies the time period over which CPU or memory utilization are averaged to determine whether average utilization values exceed the maximum threshold values, which would result in a policy violation. The default value for averaging period is 10 minutes, which helps ensure that short-term spikes in workload do not trigger policy violations. If both CPU and memory utilization are being monitored, the same averaging period applies to both metrics.
CPU utilization in the global system
Select this option if you want to monitor CPU utilization for managed AIX systems in relocation domains that are associated with this policy. Selecting this option enables the numeric threshold field for CPU utilization. Specify the maximum threshold for CPU utilization in the global system as a percentage, from 0 to 100. The default value is 90 percent, meaning that if CPU utilization in a global AIX system exceeds 90 percent over the averaging period, a policy violation is triggered.
Memory utilization in the global system
Select this option if you want to monitor memory utilization for managed AIX systems in relocation domains associated with this policy. Selecting this option enables the numeric threshold field for memory utilization. Specify the maximum threshold for memory utilization in the global system as a percentage, from 0 to 100. The default value is 90 percent, meaning that if memory utilization in a global AIX system exceeds 90 percent over the averaging period, a policy violation is triggered.
Enable automatic relocation
Select this option to enable automatic relocation for WPARs in relocation domains associated with this policy Selecting this option indicates that WPARs on systems in associated relocation domains are subject to automatic relocation when a policy violation occurs, unless automatic relocation has been disabled for a specific WPAR via a setting on its Properties page. If a policy is in effect but automatic relocation is not enabled, then a policy violation results only in a notification being displayed on the Systems Director Health Summary page.

Relocation Domain

Use this page to work with the relocation domains associated with the policy.

A relocation domain is a group of WPAR-capable AIX systems that are considered as candidates for relocation of a WPAR in the event of a policy violation. Define a relocation domain by creating a group on the Group Editor wizard page.

Actions

Add
Click Add to launch a new dialog that allows you to select one or more relocation domains from a list. Select one or more items, then click Add to add them to the selected box. When you finish adding relocation domains to the policy, click OK.
Remove
Select a relocation domain from the list and click Remove to remove the relocation domain from the policy. A job is initiated that removes the policy from all systems in the domain. Removing a relocation domain from the list does not delete the relocation domain.

Attributes

Relocation Domain
Specifies the name of the relocation domain.
Systems
Specifies the number of systems contained in the relocation domain. To see a list of the systems in the relocation domain, go to Navigate Resources > Groups, and open the group.