IBM pSeries 690 Service Manual page 791

This option should only be used by service personnel to obtain additional debug information.
v Read NVRAM
Displays Non Volatile Random Access Memory (NVRAM) content.
v Read Service Processor Configuration
Displays current service processor configuration.
v Processor Configuration/Deconfiguration Menu
Enable/Disable CPU Repeat Gard: CPU repeat gard automatically deconfigures a CPU during a
system boot if a processor has failed BIST (built-in self test), caused a machine check or check stop, or
has reached a threshold of recoverable errors. The processor will remain deconfigured until repeat gard
is disabled or the processor is replaced.
CPU repeat gard is enabled by default.
For more information, see "Configuring and Deconfiguring Processors or Memory" on page 798.
Enable/Disable Dynamic Processor Sparing: This option is part of the Capacity Upgrade on Demand
(CUoD) function. Dynamic processor sparing is the capability of the system to deconfigure a failing (or
potentially failing) processor and then configure a replacement processor from the unlicensed CUoD
processor pool.
– If the system is running logical partitions, the dynamic processor sparing operation takes place with
the system running.
– If the system is booted in a full system partition, the system must be rebooted for the dynamic
processor sparing operation to take place.
Note: The memory affinity of the failing processor is not taken into account when the replacement
processor is assigned; the replacement processor is the next one that is available.
The Processor Configuration/Deconfiguration menu allows the user to change the system processor
configuration. If it is necessary to take one of the processors offline, use this menu to deconfigure the
processor, and then reconfigure the processor at a later time. An example of this menu follows:
PROCESSOR CONFIGURATION/DECONFIGURATION MENU
77. Enable/Disable CPU Repeat Gard: Currently Enabled
78. Enable/Disable Dynamic Processor Sparing (if available): Currently enabled
1. 0 3.0 (00) Configured by system
3. 2 3.2 (00) Configured by system
5. 4 3.4 (00) Configured by system
7. 6 3.6 (00) Configured by system
98. Return to Previous Menu
0>
Note: This table is built from vital product data collected during the last boot sequence. The first time
the system is powered on, or after the system's nonvolatile RAM (NVRAM) has been erased, this
table may be empty. The table is rebuilt during the next boot into AIX.
The fields of the previous table represent the following:
Column 1
(1.) Menu selection index.
2. 1 3.1 (00) Deconfigured by system
4. 3 3.3 (00) Configured by system
6. 5 3.5 (00) Deconfigured by system
8. 7 3.7 (00) Configured by system
Chapter 7. Using the Service Processor
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