Service Processor Reboot/Restart Policy ControlsThe operating system’s automatic restart policy (see operating system documentation)defines the operating system’s response to a system crash. The service processor canbe instructed to refer to that policy by the Use OS-Defined Restart Policy setup menu.Processor Boot-Time Deconfiguration (CPU Repeat Gard)Processor boot time deconfiguration allows for the removal of processors from thesystem configuration at boot time. The objective is to minimize system failure or dataintegrity exposure due to a faulty processor.This function uses processor hardware built-in self-test (BIST) and firmware power-onself-test (POST) to discover and isolate processor hardware failures during boot time. Italso uses the hardware error detection logic in the processor to capture run-timerecoverable and irrecoverable error indications. The firmware uses the error signaturesin the hardware to analyze and isolate the error to a specific processor.The processors that are deconfigured remain offline for subsequent reboots until thefaulty processor hardware is replaced.This function allows users to manually deconfigure or re-enable a previouslydeconfigured processor through the service processor menu. The user can also enableor disable this function through the service processor.Memory Boot-Time Deconfiguration (Memory Repeat Gard)Memory boot-time deconfiguration allows for the removal of a memory segment orDIMM from the system configuration at boot time. The objective is to minimize systemfailures or data integrity exposure due to faulty memory hardware. The hardwareresource(s) to be removed are the ones that experienced the following failures:v A boot-time test failurev Run-time recoverable errors over the error threshold prior to the current boot phasev Run-time irrecoverable errors prior to the current boot phaseThis function uses firmware power-on self-test (POST) to discover and isolate memoryhardware failures during boot time. It also uses the hardware error detection logic in thememory controller to capture run-time recoverable and irrecoverable errors. Thefirmware uses the error signatures in the hardware to analyze and isolate the error tothe specific memory segment or DIMM.The memory segment or DIMM that is deconfigured remains offline during subsequentreboots until the faulty memory hardware is replaced.The function allows users to manually deconfigure or re-enable a previouslydeconfigured memory segment/DIMM through the service processor menu. The usercan also enable or disable this function through the service processor menu.208 Service Guide
