Patent ID: 6915441
Filing Date: 2005-07-05
Classification: G06F

Abstract:
1. A multiple redundancy backup management system for providing basic system functions in a computer system, comprising: a plurality of system sensors for detecting power, temperature, and cooling fan speed in the computer system; a plurality of management processors, wherein each of the processors is coupled to each of said sensors; wherein a management processor status signal is generated by each of said management processors to indicate an operational state thereof; a high-availability controller, operably coupled to said status signal and to said sensors; wherein said high availability controller comprises a non-software coded state machine that performs a different sequence of operations than the code executed by said management processors. wherein said sensors include: wherein, in response to detecting inactive processor status signals from all said management processors, said high availability controller generates control signals in response to outputs from said sensors to control operation of said power controllers and said fan controller.