TW201514675A - Method and system for controlling power supply of data center - Google Patents

Abstract

The present invention provides a method and system for controlling power supply of a data center. The system is operable to: determine a master BMC from all of the BMCs in the data center; control the master BMC to read a sum capacity of the data center from a power supply module via a PMBus; if the sum capacity reaches a maximum value, select a motherboard which can be shutdown in the data center according to a preset rule; send a control command to the selected motherboard, and control the selected motherboard to shutdown. The invention can manage the power supply of the data center intelligently.

Description

Data center power supply method and system

The invention relates to a control method and system, in particular to a data center power supply method and system.

The Data Center is made up of many servers and memory hosts. All of these large number of servers and memory hosts keep the power supply module under heavy load. If a power supply unit in the power supply module fails, the power supply may be insufficient, and the entire data center may not work normally stably. The loss caused is incalculable. In order to avoid this situation, the industry usually uses redundant power supply devices. When a power supply device fails, the redundant power supply device takes over the work of the faulty power supply device to ensure normal and stable operation of the entire data center. However, in this way it is difficult to determine how many redundant power supply units are equipped to be the most reasonable. If the number of redundant power supply units is relatively large, although the data center can be guaranteed to work normally, in fact, many times redundant power supply devices do not work, which causes waste of resources and increases costs. In addition, even with redundant power supplies, it is sometimes impossible to avoid possible events where the entire data center is not working properly. For example, only two redundant power supply units are equipped, but three power supply units fail, and one failed power supply unit cannot be replaced.

In view of the above, it is necessary to provide a data center power distribution method and system, which can intelligently manage the power supply status of the entire data center.

The data center power supply method includes: determining step: determining a master BMC from all the baseboard management controllers BMC in the data center; and reading step: controlling the master BMC to periodically read from the power supply module of the data center through the power management bus bar Take the total power consumption of the entire data center; select the step: when the total power consumption read has reached the power supply upper limit of the power supply module, select the motherboard to be closed in the data center according to the predetermined principle; and control step: send a control command To the selected motherboard, the selected motherboard is temporarily closed.

The data center power distribution system includes: a determining module for determining a main BMC from all the baseboard management controllers BMC of the data center; and a reading module for controlling the main BMC to pass through the power management bus from the data center. The power module periodically reads the total power consumption of the entire data center; the module is selected to select the host to be shut down in the data center according to a predetermined principle when the total power consumption read has reached the power supply upper limit of the power supply module. And a control module, configured to send a control command to the selected motherboard, and control the selected motherboard to be temporarily closed.

Compared with the prior art, the data center power supply method and system of the present invention can provide an energy-saving and intelligent solution. When the total power consumption of the data center reaches the upper limit of the power that the power supply module can provide, Selectively turn off some motherboards temporarily to reduce power consumption to prevent the entire data center from working properly.

1 is an application environment diagram of a preferred embodiment of a data center power distribution system of the present invention.

2 is a functional block diagram of a preferred embodiment of a data center power distribution system of the present invention.

3 is a flow chart of a preferred embodiment of a data center power distribution method according to the present invention.

FIG. 4 is a flow chart of average power consumption and average CPU load of each BMC computing motherboard in the present invention.

Referring to FIG. 1 , it is an application environment diagram of a preferred embodiment of a data center power distribution system of the present invention. The data center power distribution system 10 operates in a control computer 1, and the control computer 1 is connected to the data center 2 via a network. The control computer 1 further includes a storage 11 and a processor 12 connected through a data bus. The data center 2 includes a plurality of servers or memory hosts (not shown), and the plurality of server or memory hosts include a plurality of motherboards 20 (two in the figure) and power supply The module 30 includes a BMC (Baseboard Management Controller) 21 and a power management chip (for example, INA219AIDR) 22 in each motherboard 20.

The power supply module 30 is composed of a plurality of power supply devices, and each of the power supply devices can supply power to one or more of the motherboards 20 in the data center 2. The BMC 21 of each of the motherboards 20 and the power supply module 30 are connected by a power management bus (PMBus), and the BMC 21 can read and write the power supply module 30 through the power management bus. The power supply lines of the power supply module 30 are connected to the respective motherboards 20 via the power management chip 22, and the power management chips 22 are mounted on the system management bus (SMBus) of each BMC 21. The power management chip 22 includes a specific register, and the BMC 21 reads the register through the system management bus bar to know the current and voltage of the power management chip 22, thereby calculating the power of each motherboard 20. Power consumption.

The storage device 11 is configured to store data such as code of the data center power distribution system 10. The processor 12 is configured to execute various functional modules of the data center power distribution system 10 to complete the present invention. It can be understood that the control computer 1 should also include other necessary hardware systems and software systems, such as a motherboard, an operating system, etc., since these devices are common knowledge of those skilled in the art, in this embodiment, One by one description.

Referring to FIG. 2, it is a functional module diagram of a preferred embodiment of the data center power distribution system of the present invention.

The data center power distribution system 10 includes a determination module 100, a reading module 200, a determination module 300, a selection module 400, and a control module 500.

The determining module 100 is configured to determine one master BMC from all BMCs 21 of the data center 2. In the present embodiment, the primary BMC is determined according to the principle that the ID number of the BMC 21 is the smallest, and the remaining BMC 21 is the secondary BMC, and the primary BMC is responsible for managing each secondary BMC.

The reading module 200 is configured to control the main BMC to periodically read the total power consumption of the entire data center 2 from the power supply module 30 through the power management bus.

The determining module 300 is configured to determine whether the total power consumption read has reached the power supply upper limit of the power supply module 30 (ie, the maximum power consumption that the power supply module 30 can provide).

The selection module 400 is configured to select the motherboard 20 that can be turned off according to a predetermined principle when the total power consumption read has reached the power supply upper limit of the power supply module 30. In the present embodiment, the predetermined principle includes the average power consumption of the motherboard 20 and the average load of the CPU (not shown) and the like.

When the motherboard 20 that can be turned off is selected based on the average power consumption of the motherboard 20, the selection module 400 reads the average power consumption of each motherboard 20 from each slave BMC, and then selects the average power consumption. The lowest motherboard 20. When the motherboard 20 that can be turned off is selected based on the average CPU load, the selection module 400 reads the average CPU load of each motherboard 20 from each slave BMC, and then selects the motherboard 20 with the lowest average CPU load.

The average power consumption and the average CPU load are average values in a certain period of time, and each BMC 21 periodically acquires the power consumption of the corresponding motherboard 20 and the load of the CPU, and updates the average power consumption of the motherboard 20 . And the average CPU load. When the average power consumption and the average CPU load of a certain motherboard 20 are low, it indicates that the motherboard 20 is in a relatively idle state during this period of time. However, the average power consumption and the average CPU load are not sufficient to indicate that the current power consumption and CPU load of the motherboard 20 are also low. Therefore, in order to take into account the immediacy consideration, each BMC 21 clears and recalculates the average power consumption and CPU average load of the corresponding motherboard 20 every predetermined time (for example, 30 minutes). The specific calculation process is shown in Figure 4.

The control module 500 is configured to send a control command to the selected motherboard 20, control the selected motherboard 20 to be temporarily turned off, and send reminder information to the administrator.

The determining module 300 is further configured to determine whether there is a passively shut down motherboard 20 when the total power consumption read by the reading module 200 does not reach the power supply upper limit of the power supply module 30. The passive shutdown means that the motherboard 20 receives the control command sent by the control module 500 and is temporarily turned off. When there is a passively shut down motherboard 20, the determining module 300 predicts whether the passively powered motherboard 20 can be re-opened according to the current total power consumption of the data center 2 re-read by the primary BMC.

In this embodiment, when there is a passively shut down motherboard 20, each time the main BMC reads the total power consumption of the data center 2, the determining module 300 calculates the motherboard 20 that is passively turned off. Whether the power supply module 30 can ensure that all the motherboards 20 in the data center 2 work normally. The estimation is mainly performed by judging whether the arithmetic expression P_C+m*P_A<P_S is established, wherein P_C represents the current total power consumption of the data center 2, P_S represents the maximum power consumption that the power supply module 30 can provide, and P_A represents the passive power. The maximum power consumption of the motherboard 20 that is turned off. In order to ensure that each motherboard 20 can work stably, the value of m is slightly larger than 1 (for example, 1.1), and the specific values need to be summarized by many experiments.

The control module 500 is further configured to: when it is estimated that the passively shut down motherboard 20 can be re-enabled, send a control command to the passively shut down motherboard 20, and control the passively shut down the motherboard 20 to be turned back on. .

Referring to FIG. 3, it is a flowchart of a preferred embodiment of a power distribution method for a data center of the present invention.

In step S10, the determining module 100 determines one master BMC from all the BMCs 21 of the data center 2.

In step S12, the reading module 200 controls the main BMC to periodically read the total power consumption of the entire data center 2 from the power supply module 30 through the power management bus.

In step S14, the determining module 300 determines whether the total power consumption read has reached the power supply upper limit of the power supply module 30 (ie, the maximum power consumption that the power supply module 30 can provide). If the total power consumption read has reached the upper power supply limit of the power supply module 30, step S16 is performed. If the total power consumption read does not reach the power supply upper limit of the power supply module 30, step S20 is performed.

In step S16, the selection module 400 selects the motherboard 20 that can be closed according to a predetermined principle.

In step S18, the control module 500 sends a control command to the selected motherboard 20, controls the selected motherboard 20 to be temporarily turned off, and sends reminder information to the administrator.

In step S20, the determining module 300 determines whether there is a passively turned off motherboard 20. If there is a passively shut down motherboard 20, step S22 is performed. If there is no passively shut down motherboard 20, then return to step S12.

In step S22, the determining module 300 predicts whether the passively powered motherboard 20 can be re-opened according to the current total power consumption of the data center 2 re-read by the primary BMC. If it is estimated that the passively shut down motherboard 20 can be turned back on, step S24 is performed. If it is estimated that the passively shut down motherboard 20 cannot be turned back on, it returns to step S12.

In step S24, the control module 500 sends a control command to the passively shut down motherboard 20 to control the passively shutdown motherboard 20 to be turned back on.

Referring to FIG. 4, it is a flowchart of calculating the average power consumption and the average CPU load of the motherboard of each BMC 21 in the present invention. In the present embodiment, the BMC 21 mainly refers to a slave BMC.

In step S600, the BMC 21 starts the time when the total time is the predetermined time T.

Step S602, the BMC 21 reads the current load of the corresponding CPU, and calculates the average CPU load during the period from the start of the counting to the current time.

In step S604, the BMC 21 reads voltage and current data from the power management chip 22 through the system management bus. In the present embodiment, the BMC 21 reads the current load of the corresponding CPU and the voltage and current data in the power management chip 22 every predetermined interval time (for example, one minute).

Step S606, the BMC 21 calculates the power consumption of the corresponding motherboard 20 based on the read voltage and current data, and calculates the average power consumption during the period from the start of the timer to the current time.

In step S608, the BMC 21 determines whether a control command sent by the primary BMC is received. If a control command is received, step S610 is performed. If the control command is not received, step S612 is performed.

In step S610, the BMC 21 turns on or off the corresponding motherboard 20 according to the received control command, and then performs step S612.

In step S612, the BMC 21 determines whether the current timing has reached the predetermined time T. If yes, step S614 is performed, and if not, step S602 is returned.

In step S614, the BMC 21 clears the average power consumption and CPU average load data of the corresponding motherboard 20.

By using the data center power distribution method and system of the present invention, when the power supply module 30 is insufficiently powered, a motherboard board 20 can be selected according to the average power consumption of the main board 20 or the average CPU load according to a pre-agreed strategy. It is turned off to ensure that as many motherboards 20 as possible in the data center 2 can work normally and stably.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above-described embodiments, and equivalent modifications or variations made by those skilled in the art in accordance with the spirit of the present invention are It should be covered by the following patent application.

1‧‧‧Control computer

2‧‧‧Data Center

10‧‧‧Data Center Power Supply System

11‧‧‧Storage

12‧‧‧ Processor

20‧‧‧ motherboard

21‧‧‧BMC

22‧‧‧Power Management Wafer

30‧‧‧Power supply module

100‧‧‧Determining modules

200‧‧‧Reading module

300‧‧‧Judgement module

400‧‧‧Selection module

500‧‧‧Control Module

no

10‧‧‧Data Center Power Supply System

100‧‧‧Determining modules

200‧‧‧Reading module

300‧‧‧Judgement module

400‧‧‧Selection module

500‧‧‧Control Module

Claims (12)

A data center power supply method, the method comprising:
Determining step: determining a master BMC from all baseboard management controllers BMC in the data center;
The reading step: controlling the main BMC to periodically read the total power consumption of the entire data center from the power supply module of the data center through the power management bus;
Selection step: when the total power consumption read has reached the power supply upper limit of the power supply module, the motherboard to be closed in the data center is selected according to a predetermined principle; and the control step is: sending a control command to the selected motherboard, the control station The selected motherboard is temporarily turned off. For example, the data center power supply method described in claim 1 of the patent scope, wherein:
The predetermined principle includes an average power consumption of the motherboard and an average CPU load;
When selecting the motherboard to be shut down based on the average power consumption of the motherboard, read the average power consumption of each motherboard from each BMC, and then select the motherboard with the lowest average power consumption as the host to be shut down. board;
When the motherboard to be shut down is selected based on the average CPU load, the average CPU load of each motherboard is read from each BMC, and then the motherboard with the lowest average CPU load is selected as the motherboard to be shut down. For example, the data center power supply method described in claim 2, wherein:
A power management bus is connected between the BMC and the power supply module in each of the data centers, and the BMC reads and writes the power supply module through the power management bus.
The power supply line of the power supply module is connected to each motherboard through a power management chip, and the power management chip is mounted on a system management bus of each BMC, and the BMC manages the bus from the power management chip through the system management bus. The current and voltage of the power management chip are obtained to calculate the power consumption of each motherboard. For example, in the data center power supply method described in claim 3, each BMC clears and recalculates the average power consumption and CPU average load of the corresponding motherboard every predetermined time. The data center power supply method according to claim 1, wherein the method further comprises the steps of:
When the total power consumption read does not reach the power supply upper limit of the power supply module, it is determined whether there is a passively shut down motherboard;
When there is a passively shut down motherboard, whether the passively shutdown motherboard can be re-opened according to the current total power consumption of the data center re-read by the main BMC; and when the passive shutdown of the motherboard is estimated When re-opening, a control command is sent to the passively shut down motherboard, and the passively shut down motherboard is restarted. The data center power supply method according to claim 5, wherein the passive computing system board is re-opened by determining whether the computing expression P_C+m*P_A<P_S is established, wherein P_C indicates data. The current total power consumption of the center, P_S represents the maximum power consumption that the power supply module can provide, and P_A represents the maximum power consumption of the passively shutdown motherboard, where m is a preset value. A data center power distribution system, the system comprising:
Determining a module for determining a primary BMC from all baseboard management controllers BMC of the data center;
The reading module is configured to control the main BMC to periodically read the total power consumption of the entire data center from the power supply module of the data center through the power management bus;
Selecting a module for selecting a motherboard to be closed in the data center according to a predetermined principle when the total power consumption read has reached the power supply upper limit of the power supply module; and a control module for transmitting the control command to the selected The motherboard is controlled to temporarily close the selected motherboard. For example, the data center power distribution system described in claim 7 of the patent scope, wherein:
The predetermined principle includes an average power consumption of the motherboard and an average CPU load;
When selecting the motherboard to be shut down based on the average power consumption of the motherboard, read the average power consumption of each motherboard from each BMC, and then select the motherboard with the lowest average power consumption as the host to be shut down. board;
When the motherboard to be shut down is selected based on the average CPU load, the average CPU load of each motherboard is read from each BMC, and then the motherboard with the lowest average CPU load is selected as the motherboard to be shut down. For example, the data center power distribution system described in claim 8 of the patent scope, wherein:
A power management bus is connected between the BMC and the power supply module in each of the data centers, and the BMC reads and writes the power supply module through the power management bus.
The power supply line of the power supply module is connected to each motherboard through a power management chip, and the power management chip is mounted on a system management bus of each BMC, and the BMC manages the bus from the power management chip through the system management bus. The current and voltage of the power management chip are obtained to calculate the power consumption of each motherboard. The data center power distribution system according to claim 9 , wherein each BMC clears and recalculates the average power consumption and CPU average load of the corresponding motherboard every predetermined time. The data center power distribution system of claim 7, wherein the system further comprises:
The determining module is configured to determine whether there is a passively shut down motherboard when the total power consumption read does not reach the power supply upper limit of the power supply module;
The determining module is further configured to: when there is a passively shutdown motherboard, predict whether the passively powered motherboard can be re-opened according to the current total power consumption of the data center re-read by the primary BMC; and the control module The group is further configured to send a control command to the passively shut down motherboard when the motherboard that is passively shut down is estimated to be re-opened, and control the passively shut down the motherboard to be turned back on. For example, the data center power distribution system described in claim 11 is configured to predict whether the passively shutdown motherboard can be re-enabled by determining whether the calculation formula P_C+m*P_A<P_S is established, wherein P_C indicates data. The current total power consumption of the center, P_S represents the maximum power consumption that the power supply module can provide, and P_A represents the maximum power consumption of the passively shutdown motherboard, where m is a preset value.