# US 2016/0259384 A1 · Method of performing power management in rack-mount system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2016/0259384 A1 - Document ID: US20160259384A1 - Status: Published application - Kind: A1 - Application number: 14/811,857 - Filed: 2015-07-29 - Published: 2016-09-08 - Earliest claimed: 2015-03-02 - Assignees: Wistron Corporation - Applicants: Wistron Corporation - Inventors: Pei-Ling Yu; Sheng-Kai Lai; Bing-Kun Syu; Jui-Jen Su; Hu-Hsi Li - Web page: https://patentgrep.com/patent/US20160259384A1 ## CPC - G06F 1/26: Power supply means, e.g. regulation thereof (for memories G11C) - G06F 1/189: {Power distribution} - G06F 9/4401: Bootstrapping (security arrangements therefor G06F21/57) - G06F 1/188: Mounting of power supply units - G06F 1/3206: Monitoring of events, devices or parameters that trigger a change in power modality - G06F 11/1417: {Boot up procedures} - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) ## Abstract A rack-mount system includes a data center manager and a rack which contains a plurality of electronic devices, a rack management controller and a plurality of power supplies. Before a specific electronic device performs a booting procedure, related booting parameters of the specific electronic device are accessed. The data center manager or the rack management controller is configured to calculate the amount of power required for the specific electronic device to perform the booting procedure according to the accessed booting parameters. The rack management controller is configured to control the number of activated power supplies among the plurality of power supplies according to the calculated amount of power. ## Claims ### Claim 1 A method of performing power management in a rack-mount system, the rack-mount system including a plurality of electronic devices and a plurality of power supplies disposed in a rack, the method comprising: accessing booting parameters of a specific electronic device among the plurality of electronic devices before the specific electronic device performs a booting procedure; calculating an amount of power required for the specific electronic device to perform the booting procedure according to the accessed boot parameters; and controlling a number of activated power supplies among the plurality of power supplies according to the calculated amount of power required for the specific electronic device to perform the booting procedure. ### Claim 2 (depends on 1) The method of claim 1, further comprising: the specific electronic device sending a booting notification to a rack management controller (RMC) of the rack-mount system before performing the booting procedure; and the RMC accessing the booting parameters of the specific electronic device after receiving the booting notification; the RMC calculating the amount of power required for the specific electronic device to perform the booting procedure according to the booting parameters; and the RMC controlling the number of activated power supplies among the plurality of power supplies according to the calculated amount of power required for the specific electronic device to perform the booting procedure. ### Claim 3 (depends on 2) The method of claim 2, further comprising: the RMC sending a booting approval after controlling the number of activated power supplies among the plurality of power supplies; and the specific electronic device performing the booting procedure after receiving the booting approval. ### Claim 4 (depends on 1) The method of claim 1, further comprising: the specific electronic device sending a booting notification to a rack management controller (RMC) of the rack-mount system before performing the booting procedure; and the specific electronic device performing the booting procedure when a predetermined period has elapsed after sending the booting notification. ### Claim 5 (depends on 1) The method of claim 1, further comprising: the specific electronic device sending a booting notification to a data center manager (DCM) of the rack-mount system before performing the booting procedure; the DCM sending an inquiry message to a rack management controller (RMC) of the rack-mount system after receiving the booting notification; the RMC sending the booting parameters of the specific electronic device to the DCM after receiving the inquiry message; the DCM calculating the amount of power required for the specific electronic device to perform the booting procedure according to the booting parameters of the specific electronic device and notifying the RMC of the calculated amount of power required for the specific electronic device to perform the booting procedure; and the RMC controlling the number of activated power supplies among the plurality of power supplies according to the amount of power required for the specific electronic device to perform the booting procedure and notifying the DCM of a status of the plurality of power supplies; the DCM determining whether a booting approval should be sent to the specific electronic device according to the status of the plurality of power supplies; and the specific electronic device performing the booting procedure when receiving the booting approval. ### Claim 6 (depends on 1) The method of claim 1, further comprising: the specific electronic device sending a booting notification to a rack management controller (RMC) of the rack-mount system or to a data center manager (DCM) of the rack-mount system using an intelligent platform management interface (IPMI) via a baseboard management controller (BMC) before performing the booting procedure, or sending the booting notification to the RMC or to the DCM using a simple network management protocol (SNMP) via a network management software module before performing the booting procedure. ### Claim 7 (depends on 1) The method of claim 1, further comprising: a rack management controller (RMC) of the rack-mount system monitoring an electronic behavior of the rack and an operational status of the plurality of power supplies after controlling the number of activated power supplies among the plurality of power supplies; and the RMC adjusting the number of activated power supplies among the plurality of power supplies according to the monitored electronic behavior and the operational status. ### Claim 8 (depends on 1) The method of claim 1, wherein: controlling the number of activated power supplies among the plurality of power supplies according to the calculated amount of power required for the specific electronic device to perform the booting procedure is activating one or multiple power supplies among the plurality of power supplies; and a sum of maximum output power of the activated one or multiple power supplies is equal to or larger than the amount of power required for the specific electronic device to perform the booting procedure. ### Claim 9 (depends on 1) The method of claim 1, wherein: controlling the number of activated power supplies among the plurality of power supplies according to the calculated amount of power required for the specific electronic device to perform the booting procedure is activating one or multiple power supplies among the plurality of power supplies; and a sum of output power of the activated one or multiple power supplies when operating in respective optimized operational ranges is equal to or larger than the amount of power required for the specific electronic device to perform the booting procedure. ### Claim 10 A method of performing power management in a rack-mount system, the rack-mount system including a plurality of electronic devices, a plurality of power supplies, a rack management controller (RMC) , and at least one non-RMC controlled power supply disposed in a rack, the method comprising: a specific electronic device among the plurality of electronic devices performs a booting procedure using power supplied by the non-RMC controlled power supply; the RMC monitoring a status of the at least one non-RMC controlled power supply; and the RMC controlling a number of activated power supplies among the plurality of power supplies according to the status of the at least one non-RMC controlled power supply. ### Claim 11 (depends on 10) The method of claim 10, wherein: the RMC controlling the number of activated power supplies among the plurality of power supplies according to the status of the at least one non-RMC controlled power supply is activating one or multiple power supplies among the plurality of power supplies so as to allow the at least one non-RMC controlled power supply to operate in an optimized operational range. ### Claim 12 (depends on 11) The method of claim 11, further comprising: the RMC monitoring an electronic behavior of the rack and an operational status of the plurality of power supplies after controlling the number of activated power supplies among the plurality of power supplies; and the RMC adjusting the number of activated power supplies among the plurality of power supplies according to the monitored electronic behavior and the operational status. ### Claim 13 A method of performing power management in a rack-mount system, rack-mount system including a plurality of electronic devices a plurality of power supplies, and a rack management controller (RMC) disposed in a rack, the method comprising: the RMC monitoring an electronic behavior of the rack and an operational status of the plurality of power supplies; and the RMC controlling a number of activated power supplies among the plurality of power supplies according to the monitored electronic behavior and the operational status. ### Claim 14 (depends on 10) The method of claim 10, wherein the rack-mount system further includes at least one non-RMC controlled power supply, and the method further comprises: a specific electronic device among the plurality of electronic devices performing a booting procedure using power supplied by the non-RMC controlled power supply. ### Claim 15 The method of claim. 14, wherein the RMC monitoring the electronic behavior of the rack is by monitoring surge current generated by the specific electronic device when performing the booting procedure. ### Claim 16 (depends on 14) The method of claim 14, wherein: the RMC controlling the number of activated power supplies among the plurality of power supplies according to the monitored electronic behavior and the operational status is activating one or multiple power supplies among the plurality of power supplies so as to allow the at least one non-RMC controlled power supply to operate in an optimized operational range. ### Claim 17 (depends on 16) The method of claim 16, wherein each activated power supply among the plurality of power supplies operates in an optimized operational range. ### Claim 18 (depends on 13) The method of claim 13, wherein each activated power supply among the plurality of power supplies operates in an optimized operational range.