MASTER BASEBOARD MANAGEMENT CONTROLLER ELECTION AND REPLACEMENT SUB-SYSTEM ENABLING DECENTRALIZED RESOURCE MANAGEMENT CONTROL

摘要

An information handling system and method of a master baseboard management controller election and replacement sub-system (MBMCERS) enables decentralized resource management control via the elected master baseboard management controller (BMC). The information handling system includes a plurality of server nodes, each having a BMC capable of controlling a plurality of shared common resources among the plurality of server nodes. Each BMC has a unique BMC identification. A master register stores BMC identification that has been elected as the master BMC to control the shared common resources. The master BMC relinquishes control of the shared common resources when the master register is placed in the reset state. When the master register is in the reset state, any one of the BMCs can elect to become a replacement master BMC.

主权项

1. An information handling system comprising:
a plurality of server nodes, wherein each of the plurality of server nodes comprises a baseboard management controller (BMC) capable of controlling shared common resources among the plurality of server nodes, and wherein each BMC has a unique BMC identification; a programmable logic (PL) switch coupled to each BMC and to a plurality of shared common resources and which enables an identified master BMC to communicate with and control the shared common resources; a master baseboard management controller election and replacement sub-system (MBMCERS) that enables decentralized resource management control via the identified master BMC, the MBMCERS comprising:
a master register which stores the unique identification of the BMC that has been elected as the master BMC to control shared common resources; anda master heartbeat register that receives periodic updates from the master BMC;a watchdog timer that tracks an elapsed time since the master BMC last updated the master heartbeat register and triggers a reset of the master register to a reset state when the watchdog timer expires without the master BMC writing to the master heartbeat register, wherein the master BMC relinquishes control of the shared common resources when the master register is placed in the reset state, and wherein when the master register is in the reset state, any one of the BMCs can elect to become a replacement master BMC.