Changing the processor configuration

Learn how to display data and change the state for each processor.

All processor failures that stop the system, even if intermittent, are reported to the authorized service provider as a diagnostic call out for service repair. To prevent the recurrence of intermittent problems and improve the availability of the system until a scheduled maintenance window, processors with a failure history are marked deconfigured to prevent them from being configured on subsequent boots.

A processor is marked deconfigured under the following circumstances:
  • A processor fails a built-in self-test or power-on self-test testing during boot (as determined by the service processor).
  • A processor causes a machine check or check stop during run time, and the failure can be isolated specifically to that processor (as determined by the processor run-time diagnostics in the service processor firmware).
  • A processor reaches a threshold of recovered failures that results in a predictive call to service (as determined by the processor run-time diagnostics in the service processor firmware).
  • You ordered feature code 2319, Factory deconfiguration, of one core to reduce the number of configured processor cores in the system.

During system start time, the service processor does not configure processors that are marked deconfigured. The deconfigured processors are omitted from the hardware configuration. The processor remains offline for subsequent reboots until it is replaced or the deconfiguration policy is disabled. The deconfiguration policy also provides the user with the option of manually deconfiguring a processor or re-enabling a previously manually deconfigured processor. This state is displayed as deconfigured by user.

To perform this operation, you must have one of the following authority levels:
  • Administrator
  • Authorized service provider
Note: The state of the processor can be changed only if the system is powered off. At run time, users can view but not change the state of each processor. If the deconfiguration policy is disabled, the states of the processors cannot be changed.

To view or change the processor configuration, do the following steps:

  1. On the ASMI Welcome pane, specify your user ID and password, and click Log In.
  2. In the navigation area, expand System Configuration > Hardware Deconfiguration.
  3. Select Processor Deconfiguration.
  4. In the right pane, select a node from the list of nodes displayed.
  5. Click Continue to change the state of each processor to configured, or deconfigured if it is not already deconfigured by the system.
  6. Reboot the system for the changes to take effect.
Parent topic: Deconfiguring hardware


Last updated: Tue, September 18, 2018