Power Allocation Management in an Information Handling System

An information handling system includes modular processing resources, each having a main processor, system memory, and preferably a service processor resource. In response to a power request (302) a management resource coupled to a service processor resource evaluates a system power budget and alloc...

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Bibliographic Details
Main Authors AKKIAH MADDUKURI, STEPHEN D COCHRAN, SANDOR T FARKAS
Format Patent
LanguageEnglish
Published 07.11.2007
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:An information handling system includes modular processing resources, each having a main processor, system memory, and preferably a service processor resource. In response to a power request (302) a management resource coupled to a service processor resource evaluates a system power budget and allocates power to a processing resource by indicating a critical power level (304). The processing resource determines a warning power level based on the critical power level (306) and monitors its actual power consumption (308). If actual power consumption exceeds the critical power level (310), the processing resource is powered down (311). If actual power consumption exceeds the warning power level (312), but is less than the critical power level, the processing resource throttles its performance to conserve power (314) and requests a power allocation increase (324). If the power consumption level is below a specified threshold power allocation may be returned to the management resource (320). Power consumption may be monitored using current sensing circuitry. In a particular embodiment the processing resource may be a blade server suitable for insertion into a slot in a hardware chassis (Fig 1) .
Bibliography:Application Number: GB20070008778