CN102740655A - Data center and heat radiation control system thereof - Google Patents

Abstract

The invention discloses a data center and its cooling system. The data center includes multiple server systems, each server system includes multiple servers, and each server includes multiple temperature sensors. The data center also includes a plurality of heat dissipation control systems, each heat dissipation control system is used to cool a server system. Each cooling control system includes multiple fans and a fan control system. Each of the fan control systems is used to obtain temperature information from temperature sensors of multiple servers in the corresponding server system, and convert the temperature information into fan speed control signals to control the speed of the multiple fans. The heat dissipation system can save energy during heat dissipation and increase system flexibility.

Description

Data Center and Its Thermal Control System

technical field

The invention relates to a data center and its heat dissipation control system.

Background technique

With the development of online applications, the demand for data centers is growing rapidly. A data center is a large-scale centralized computing facility, which usually includes a large number of servers, which are placed in racks to form a server system.

Generally, each server is equipped with a fan, which is controlled by the server's Baseboard Management Controller (BMC). The BMC controls the speed of the fan according to the temperature of the server sensed by the temperature sensor of the server, so as to cool down the server and ensure that the server will not malfunction or even crash due to overheating.

However, if each server in the data center is equipped with a fan and controlled by the server separately, the number of fans in the entire data center and the energy consumed during operation will be quite alarming. Moreover, if a temperature sensor of a certain server fails, the corresponding fan cannot operate correctly to cool down the server.

Contents of the invention

In view of the above, it is necessary to provide a data center and its heat dissipation control system to overcome the above defects.

A data center includes multiple server systems, each server system includes multiple servers, and each server includes multiple temperature sensors. The data center also includes a plurality of heat dissipation control systems, each heat dissipation control system is used to cool a server system. Each cooling control system includes multiple fans and a fan control system. Each fan control system is used to obtain temperature information from temperature sensors of multiple servers in the corresponding server system, and convert the temperature information into fan speed control signals to control the speed of the multiple fans.

A heat dissipation control system is used for cooling a server system. The server system includes a plurality of servers, and each server includes a plurality of temperature sensors. The thermal control system includes multiple fans and a fan control system. The fan control system is used to obtain temperature information from temperature sensors of multiple servers in the server system, and convert the temperature information into fan speed control signals to control the speed of the multiple fans.

The present invention controls the fans through the fan control system instead of controlling the fans individually through the servers, so the number of fans can be set according to actual needs, generally less than that of the servers, so as to save energy. Moreover, when a temperature sensor fails, the fan control system can control the fan to rotate normally according to other temperature sensors.

Description of drawings

The present invention will be described in further detail below in conjunction with preferred embodiment with reference to accompanying drawing:

FIG. 1 is a schematic diagram of a preferred embodiment of the data center of the present invention.

FIG. 2 is a partial front view of the data center in FIG. 1 .

FIG. 3 is a block diagram of a preferred embodiment of the heat dissipation control system of the present invention.

FIG. 4 is a fan control correspondence table for the heat dissipation control system shown in FIG. 3 .

Description of main component symbols

data center 100 container 10 server system 20 bracket twenty two server twenty four BMC 26 Central Processing Unit (CPU) Temperature Sensor 28 motherboard temperature sensor 29 fan 30 Fan Control System 40 high level controller 41 low controller 42

The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings.

Detailed ways

Please refer to FIG. 1 and FIG. 2 , which disclose a specific implementation manner of the data center 100 of the present invention. In this embodiment, the data center 100 is a container data center, including a container 10 (such as a container) that can be transported by means of transportation and a plurality of server systems 20 installed in the container 10. In this embodiment, the container 10 Two rows of racks 22 are arranged, and four server systems 20 are arranged in each rack 22, and each server system 20 includes 24 servers 24 (in order to show each element more clearly, the server 24 and other elements drawn in Fig. 2 The quantity is less than the actual quantity), and the server 24 is a blade server. In other implementation manners, only one server system 20 may be included in one rack. The related technologies of the server system 20 are very mature at present, so the working principle thereof will not be described in detail here.

The data center 100 also includes a plurality of heat dissipation control systems disposed in the container 10 , and each heat dissipation control system corresponds to a server system 20 . The following only takes one of the heat dissipation control systems as an example for illustration, and the others will not be described in detail.

Please refer to Fig. 2, Fig. 3, each server 24 comprises a BMC26, a central processing unit (CPU) temperature sensor 28 and a motherboard temperature sensor 29. The CPU temperature sensor 28 senses the CPU temperature of the server 24 and transmits it to the BMC 26. The motherboard temperature sensor 29 is used to sense the temperature of the motherboard of the server 24 .

Each cooling control system includes a plurality of fans 30 and a fan control system 40 .

Multiple fans 30 form a fan group. The number of fans 30 included in the fan group is less than the number of servers of the corresponding server system 20 . In this embodiment, the fan group includes 12 fans 30 installed on the wall of the container 10 facing the servers 24 , and each fan 30 is used to cool two adjacent servers 24 .

The fan control system 40 includes a high-level controller 41 and a plurality of low-level controllers 42 . The high-level controller 41 and the low-level controller 42 are installed on the bracket 22 . In this embodiment, one low-level controller 42 corresponds to one or more servers 24 , the low-level controller 42 is installed adjacent to the corresponding server 24 , and the high-level controller 41 is installed adjacent to the server system 20 . The low-level controller 42 is used to receive the CPU temperature transmitted from the BMC 26 and the motherboard temperature transmitted from the motherboard temperature sensor 29 and forward it to the high-level controller 41.

The high-level controller 41 receives the CPU temperature and motherboard temperature of each server 24 transmitted from the low-level controller 42 , and drives the corresponding fan 30 to rotate according to the above-mentioned temperature to cool down the server 24 .

Because the various buses that communicate between the server 24 and the outside world generally have limitations on the transmission distance, signal attenuation will occur if the transmission distance is exceeded, and the high-level controller 41 is far away from some servers 24. In this embodiment, the low-level controller 42 is used. After the temperature signal of the server 24 is collected and preliminarily processed, it is sent to the high-level controller 41 to avoid signal attenuation during the transmission of the temperature signal and ensure control accuracy.

Please refer to FIG. 4 , specifically, a fan control correspondence table is established in the high-level controller 41, and for each fan 30, columns corresponding to the CPU temperature of the server 24 and the motherboard temperature are set in the fan control correspondence table. And fill the received temperature value into the corresponding column. The high-level controller 41 regularly checks the fan control corresponding table. For each fan 30, the high-level controller 41 finds the highest temperature among the corresponding multiple temperature values from the table, and converts the highest temperature into a fan speed control corresponding to the corresponding ratio. The signal controls the corresponding fan 30 to rotate, and the rotation speed of the fan 30 is proportional to the maximum temperature. Therefore, when the calorific value of the server 24 is greater, the rotation speed of the corresponding fan 30 is greater. For example, the detected maximum temperature can be converted into a corresponding proportional PWM (Pulse-Width Modulation, pulse width modulation) signal as a fan speed control signal. If the maximum temperature becomes larger, the duty cycle of the converted PWM will be The corresponding strain increases, and the corresponding fan 30 is controlled to increase the rotational speed. The specific ratio can be adjusted according to actual needs, so as to ensure that the rotation speed of the fan 30 just meets the heat dissipation requirement.

The present invention is not limited to what is disclosed in this embodiment. For example, in other embodiments, the high-level controller 41 can control the rotation speed of a fan 30 according to the average value of each temperature corresponding to the fan 30 .

Claims (10)

1. data center; Comprise a plurality of server systems, each server system comprises a plurality of servers, and each server comprises a plurality of temperature sensors; It is characterized in that: this data center also comprises a plurality of cooling control systems, and each cooling control system is used for to a server system heat radiation; Each cooling control system comprises a plurality of fans and a fan control system; Each this fan control system is used for obtaining temperature information from the temperature sensor of its corresponding a plurality of servers of this server system, and converts this temperature information arrangement to the rotation speed of the fan control signal to control the rotating speed of these a plurality of fans.

2. data center as claimed in claim 1 is characterized in that: also comprise the support that is used to lay this server system.

3. data center as claimed in claim 1 is characterized in that: this data center also comprises the counter that is used to hold this server system and these a plurality of cooling control systems.

4. data center as claimed in claim 1 is characterized in that: this temperature sensor is installed in this server, comprises cpu temperature transducer that is used for the sensing cpu temperature and the mainboard temperature sensor that is used for sensing mainboard temperature.

5. data center as claimed in claim 4 is characterized in that: each this server also comprises a baseboard management controller, and this baseboard management controller is used to receive and store the cpu temperature information by this cpu temperature transducer output.

6. data center as claimed in claim 5; It is characterized in that: each this fan control system comprises a plurality of low level controllers and a high level controller; Each low level controller is used for collecting and the edit temperature information from the baseboard management controller of one or more servers of this server system and mainboard temperature sensor, and this high level controller is used for converting this temperature information of these a plurality of low level controller outputs to rotating speed that this rotation speed of the fan control signal is controlled these a plurality of fans.

7. data center as claimed in claim 6; It is characterized in that: each fan is corresponding to a plurality of servers, and this high level controller will change into this rotation speed of the fan control signal to control the rotating speed of this correspondence fan corresponding to the maximum in a plurality of temperature values of this a plurality of servers of a fan.

8. a cooling control system is used for to a server system heat radiation, and this server system comprises a plurality of servers, and each server comprises a plurality of temperature sensors, it is characterized in that: this cooling control system comprises a plurality of fans and a fan control system; This fan control system is used for obtaining temperature information from the temperature sensor of a plurality of servers of this server system, and converts this temperature information arrangement to the rotation speed of the fan control signal to control the rotating speed of these a plurality of fans.

9. cooling control system as claimed in claim 8; It is characterized in that: this fan control system comprises a plurality of low level controllers and a high level controller; Each low level controller is used for collecting and the edit temperature information from the temperature sensor of this server system, and this high level controller is used for converting this temperature information of these a plurality of low level controller outputs to rotating speed that this rotation speed of the fan control signal is controlled these a plurality of fans.

10. cooling control system as claimed in claim 9; It is characterized in that: each fan is corresponding to a plurality of servers, and this high level controller will change into this rotation speed of the fan control signal to control the rotating speed of this correspondence fan corresponding to the maximum in a plurality of temperature values of this a plurality of servers of a fan.

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