Power management method for information platform

• US 7,992,011 B2
• Filed: 05/25/2007
• Issued: 08/02/2011
• Est. Priority Date: 05/29/2006
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Okitsu, Jun, Baba, Takashige, Tarui, Toshiaki, Yasuda, Yoshiko
• Primary Examiner(s): Lee; Thomas
• Assistant Examiner(s): Brown; Michael J
• Application Number:
  US11/753,796
• Publication Number:
  US 20070277046A1
• Time in Patent Office: 1,530 Days
• Field of Search: 713/300, 713/320, 713/321, 711/170
• US Class Current: 713/300
• CPC Class Codes: G06F 1/3203 Power management, i.e. event-based initiation of a power-saving mode
• CPC Class Codes: G06F 1/3209 Monitoring remote activity, e.g. over telephone lines or network connections

Abstract

A power management method for an information platform, includes holding system configuration information indicating a correspondence between a logical system and a processing module constituting the logical system; holding power management information indicating a correspondence between information with which a type of the logical system can be specified, an operating condition of the logical system, and first power consumption for operating the logical system; selecting the processing module which constitutes the logical system specified by a configuration request by referring to the system configuration information when receiving the configuration request of the logical system; calculating the first power consumption for operating the logical system based on the type and the operating condition included in the configuration request, and the power management information; and determining second power consumption to be supplied to the processing module based on the calculated first power consumption and information on the processing modules.

Claims

1. A power management method for an information platform including:

at least one processing module;

a management module;

a switch for coupled to the processing module and the management module; and

a power supply module for supplying power to the processing module, the management module, and the switch,

the information platform causing at least one logical system constituted by the processing module to operate, the method comprising;

a first step of holding, by the management module, system configuration information indicating a correspondence between the logical system and the at least one processing module constituting the logical system;

a second step of holding, by the management module, power management information indicating a correspondence among information with which a type of the logical system can be specified, an operating condition of the logical system, and first power consumption which is power consumption for operating the logical system;

a third step of selecting, by the management module, the processing module which constitutes the new logical system specified by a configuration request of the logical system by referring to the system configuration information when receiving the configuration request;

a fourth step of calculating, by the management module, the first power consumption for operating the new logical system based on the type of the new logical system and the operating condition of the new logical system included in the configuration request, and the power management information; and

a fifth step of determining, by the management module, second power consumption to be supplied to the processing module constituting the new logical system, so that a total of all the second power consumption to be supplied to all the processing modules constituting the new logical system is less than or equal to the first power consumption for operating the new logical system, in a case where the first power consumption for operating the new logical system is less than a total of maximum power consumption to be supplied to all the processing modules constituting the new logical system.

2. The power management method according to claim 1, further comprising the steps of:

holding, by the management module, power condition management information indicating a correspondence between a power control parameter including an operation condition for operating the processing module by the second power consumption, and the second power consumption;

specifying, by the management module, the power control parameter for operating the processing module by the determined second power consumption by referring to the power condition management information;

setting, by the management module, the specified power control parameter to the processing module;

starting, by the management module, the power supply module to supply power to the processing module; and

booting up, by the management module, the processing module in accordance with the set power control parameter.

3. The power management method according to claim 2, wherein:

the operation condition includes at least one of an operation frequency and an operation voltage of the processing module; and

the power condition management information holds at least two entries including a correspondence between the second power consumption and the operation condition.

4. The power management method according to claim 1,

wherein the fifth step of determining, by the management module, the second power consumption so that the second power consumption is the maximum power consumption to be supplied to the processing modules constituting the new logical system, in a case where the first power consumption for operating the new logical system is more than the total of maximum power consumption to be supplied to all the processing modules constituting the new logical system.

5. The power management method according to claim 1, further comprising the steps of:

acquiring, by the management module, maximum output power that can be supplied by the power supply module;

verifying, by the management module, whether a total of the calculated first power consumption of all the logical systems included in the information platform is exceeding the acquired maximum output power;

verifying, by the management module, whether a total of the determined second power consumption of all the processing modules constituting all the logical systems is exceeding a total of the maximum power consumption of all the processing modules constituting the logical system; and

adjusting, by the management module, the maximum output power so that the maximum output power is approximated to the total of all the first power consumption supplied from the power supply module, in a case where the total of the calculated first power consumption of all the logical systems included in the information platform does not exceed the maximum output power.

6. The power management method according to claim 1, wherein the operating condition includes information with which a processing speed of the processing module constituting the new logical system can be designated.

7. The power management method according to claim 1, wherein the operating condition includes information with which the first power consumption for operating the new logical system can be specified.

8. The power management method according to claim 1, wherein the second power consumption is set to be equal to or lower than maximum power consumption of the processing module constituting the new logical system.

9. The power management method according to claim 1, wherein:

the power supply module includes at least two power supply systems that can independently supply power through different paths; and

the method further comprises the steps of;

holding, by the management module, a system component management information indicating a correspondence between an identifier of the power supply systems for supplying power to the logical system and the processing module constituting the logical system, and the logical system;

holding, by the management module, power condition management information indicating a correspondence between a power control parameter including an operation condition for operating the processing module by the second power consumption, and the second power consumption;

specifying, by the management module, the power control parameter for operating the processing module by the determined second power consumption, by referring to the power condition management information;

setting, by the management module, the specified power control parameter to the processing module;

starting, by the management module, the power supply module included in the power supply system allocated to the new logical system supplying power to the processing module; and

booting up, by the management module, the processing module in accordance with the set power control parameter.

10. The power management method according to claim 9, wherein the configuration request of the logical system includes information on the type of the new logical system, the operating condition of the new logical system, and the power supply systems which supplies power to the logical system.

11. The power management method according to claim 1, further comprising the steps of:

providing a correspondence between the logical system and the processing module constituting the logical system;

acquiring, by the management module, the type and the operating condition of the new logical system included in the configuration request when receiving the configuration request of the logical system;

selecting, by the management module, the processing module which constitutes the new logical system specified by the configuration request based on the correspondence between the logical system and the processing module;

configuring, by the management module, the new logical system specified by the configuration request by the selected processing module; and

holding, by the management module, in the system configuration information, the correspondence between the new logical system specified by the configuration request and the selected processing module.

12. An information platform, comprising:

at least one processing module;

a management module;

a switch for coupled to the processing module and the management module; and

a power supply module for supplying power to the processing module, the management module, and the switch,

the information platform including at least one logical system constituted by the processing module, wherein the management module is configured to;

hold system configuration information indicating a correspondence between the logical system and the processing module constituting the logical system;

hold power management information indicating a correspondence among information with which a type of the logical system can be specified, an operating condition of the logical system, and first power consumption which is power consumption for operating the logical system;

select the processing module which constitutes the new logical system specified by a configuration request of the logical system by referring to the system configuration information when receiving the configuration request;

calculate the first power consumption for operating the new logical system based on the type of the new logical system and the operating condition of the new logical system included in the configuration request, and the power management information; and

determine second power consumption to be supplied to the processing module constituting the new logical system, so that a total of all the second power consumption to be supplied to all the processing modules constituting the new logical system is less than or equal to the first power consumption for operating the new logical system, in a case where the first power consumption for operating the new logical system is less than a total of maximum power consumption to be supplied to all the processing modules constituting the new logical system.

13. The information platform according to claim 12, wherein the management module is further configured to:

hold power condition management information indicating a correspondence between a power control parameter including an operation condition for operating the processing module by the second power consumption, and the second power consumption;

specify the power control parameter for operating the processing module by the determined second power consumption by referring to the power condition management information;

set the specified power control parameter to the processing module;

start the power supply module supplying power to the processing module; and

boot up the processing module in accordance with the set power control parameter.

14. The information platform according to claim 13, wherein:

the operation condition includes at least one of an operation frequency and an operation voltage of the processing module; and

the power condition management information holds at least two entries including a correspondence between the second power consumption and the operation condition.

15. The information platform according to claim 13, wherein the management module is further configured to:

acquire the type and the operating condition of the logical system included in the configuration request when receiving the configuration request of the logical system;

select the processing module which constitutes the logical system specified by the configuration request based on the correspondence between the logical system and the processing module constituting the logical system;

configure the logical system specified by the configuration request by the selected processing module; and

hold, in the system configuration information, the correspondence between the logical system specified by the configuration request and the selected processing module.

16. The information platform according to claim 13, further comprising a storage device, wherein:

the management module comprises a memory;

the management module stores the system configuration information, the power management information and the power condition management information in the memory; and

the management module stores in the storage device the system component management information, the power management information and the power condition management information stored in the memory every predetermined time.

17. The information platform according to claim 13, wherein the management module registers new entries on the power management information and the power condition management information, and deletes entries on the power management information and the power condition management information.

18. The information platform according to claim 12, wherein the management module is further configured to:

determine the second power consumption so that the second power consumption is the maximum power consumption to be supplied to the processing modules constituting the new logical system, in a case where the first power consumption for operating the new logical system is more than the total of maximum power consumption to be supplied to all the processing modules constituting the new logical system.

19. The information platform according to claim 12, wherein the management module is further configured to:

acquire maximum output power that can be supplied by the power supply module;

verify whether a total of the calculated first power consumption of all the logical systems included in the information platform is exceeding the acquired maximum output power;

verify whether a total of the determined second power consumption of all the processing modules constituting all the logical systems is exceeding a total of the maximum power consumption of all the processing modules constituting the logical system; and

adjust the maximum output power so that the maximum output power is approximated to the total of all the first power consumption supplied from the power supply module, in a case where the total of the calculated first power consumption of all the logical systems included in the information platform does not exceed the acquired maximum output power.

20. The information platform according to claim 12, wherein the second power consumption is set to be equal to or lower than maximum power consumption of the processing module constituting the new logical system.

21. The information platform according to claim 12, wherein:

the power supply module includes at least two power supply systems that can independently supply power through different paths; and

the management module is further configured to;

hold a system component management information indicating a correspondence between an identifier of the power supply systems for supplying power to the logical system and the processing module constituting the logical system, and the logical system;

hold power condition management information indicating a correspondence between a power control parameter including an operation condition for operating the processing module by the second power consumption, and the second power consumption;

specify the power control parameter for operating the processing module by the determined second power consumption, by referring to the power condition management information;

set the specified power control parameter to the processing module;

start the power supply module included in the power supply system allocated to the logical system supplying power to the processing module; and

boot up the processing module in accordance with the set power control parameter.

22. The information platform according to claim 21, wherein the configuration request of the logical system includes information on the type of the new logical system, the operating condition of the new logical system, and the power supply systems which supplies power to the logical system.

23. The information platform according to claim 12, wherein the management module is further configured to:

measure a first load for the processing module;

calculate a second load for the logical system based on a result of the measured first load;

change the operation condition of the processing module constituting the logical system to change the second power consumption, when receiving an optimizing request for the second load is; and

change the first power consumption of the logical system constituted by the processing module by supplying the changed second power consumption to the processing module.