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Chapter 10. Using the Advanced Systems Management Interface 313

Figure 10-53 General hardware deconfiguration policies

Deconfigure on predictive failure

Select the policy for deconfigure on predictive failures. This applies to run time or persistent

boot time deconfiguration of processing unit resources or functions with predictive failures,

such as correctable errors over the threshold. If enabled, the particular resource or function

affected by the failure will be deconfigured.

Deconfigure on functional failure

Select the policy for deconfigure on functional failures. This applies to run time or persistent

boot time deconfiguration of processing unit resources or functions with functional failures,

such as checkstop errors or uncorrectable errors. If enabled, the particular resource or

function affected by the failure will be deconfigured.

Deconfigure on system bus failure

Select the policy for deconfigure on system bus failures. Applies to run time or persistent boot

time deconfiguration of processing unit resources or functions with system bus failures, such

as check stop errors or uncorrectable errors. This policy is not applicable for systems with

one processing unit node. If enabled, the particular resource or function affected by the failure

will be deconfigured.

Deconfigure on floating point unit failure

Select the policy for deconfigure on floating point unit test failures. If enabled, the periodic

floating point unit test is executed, and if it detects an error, then it deconfigures the resource.

Processor deconfiguration

Most System i5 systems will have more than one processor. In the event of a single

processor failure, it might be possible to continue operating, with degraded performance, on

fewer processors. You can use the panel shown in Figure 10-54 below to start the process of

removing processors that might have failed or are beginning to generate serious failure

conditions. You can also see processors that may have become deconfigured due to some

error condition that the system was able to detect and isolate.

All processor failures that stop the system, even if intermittent, are reported to the authorized

service provider as a diagnostic dial-out for a service repair action. To prevent the recurrence

of intermittent problems and improve the availability of the system until a scheduled

maintenance window can be found, processors with a failure history are marked

deconfigured

to prevent them from being configured on subsequent boots. Processors marked as

deconfigured remain offline and will be omitted from the system configuration.

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