CN112065757A - Intelligent regulation and control method for server fan in S5 state - Google Patents
Intelligent regulation and control method for server fan in S5 state Download PDFInfo
- Publication number
- CN112065757A CN112065757A CN202010745738.6A CN202010745738A CN112065757A CN 112065757 A CN112065757 A CN 112065757A CN 202010745738 A CN202010745738 A CN 202010745738A CN 112065757 A CN112065757 A CN 112065757A
- Authority
- CN
- China
- Prior art keywords
- fan
- state
- intelligent
- rotating speed
- heat dissipation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 230000033228 biological regulation Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000017525 heat dissipation Effects 0.000 claims abstract description 30
- 238000013500 data storage Methods 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000011217 control strategy Methods 0.000 abstract 1
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/206—Cooling means comprising thermal management
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention discloses a server fan intelligent regulation and control method in S5 state, wherein in S5 state, BMC does not participate in fan regulation and control, and CPLD controls fan state according to in-place signals of other intelligent devices in the system; one fan is used for radiating heat of one or more intelligent devices, and the CPLD controls the fan to operate at a corresponding rotating speed according to the percentage of the rotating speed required by the heat radiation of each intelligent device; when one fan dissipates heat of a plurality of intelligent devices, the rotating speed of the fan is the percentage sum of the heat dissipation requirements of the intelligent devices; if the percentage sum of the heat dissipation requirement rotating speeds is greater than 100%, the rotating speed of the fan is 100% output, and the rotating speed of the adjacent fan is twice output after the percentage sum of the heat dissipation requirement rotating speeds subtracts 100%. The scheme is completed, the problems of incomplete fan regulation and control strategy, high fan power consumption and high noise in the existing server product are solved, and a solution is provided for other products or systems needing to use a large number of fans for heat dissipation.
Description
Technical Field
The invention relates to the technical field of intelligent server heat dissipation, in particular to an intelligent regulation and control method for a server fan in an S5 state.
Background
With the increasing maturity of the server industry, intelligent server products gradually enter the public vision. Following this, the use of smart devices associated with servers is becoming more and more widespread, such as smart network cards, OCP cards, SmartNIC cards, GPU cards, timer cards, PCIE accelerator cards, AI encryption cards, and the like. However, intelligence must pay a corresponding price.
The general-purpose server and the peripheral devices do not need a fan to dissipate heat at all in the state of S5 (the state of S5 is after the AC power cord is plugged in). The smart device consumes a lot of power and already starts operating in the S5 state. If the heat dissipation scheme is not considered, the normal work of the intelligent device can be influenced, and even permanent damage can be brought to the intelligent device.
In the current design, smart network cards, OCP cards, SmartNIC cards, etc. have been widely used in AI servers, and even general server products have begun to introduce these smart devices. The problem also begins to appear, that is, there is no perfect heat dissipation scheme to ensure the normal operation of these intelligent devices, and the intelligent devices often work abnormally because of the high temperature, which severely restricts the development of the intelligent server.
Fig. 2 illustrates a conventional server fan control scheme. In the existing server scheme, the heat dissipation regulation is completely controlled by the BMC. The BMC collects the temperature sensors distributed at each position of the mainboard through the I2C, sends a fan PWM signal to the CPLD according to the value of the temperature Sensor, and transmits the fan PWM signal to the fan end through the CPLD to regulate the rotating speed of the fan, so that the temperature of the whole case is regulated. When the BMC does not work, the CPLD takes over the fan control to control the rotating speed of the fan at a fixed speed.
The conventional server fan control scheme has the following problems.
First, BMCs start too slowly and easily hang up. Before the BMC is started or after the BMC is hung up, the rotating speed of the fan is controlled by the CPLD at a fixed rotating speed, so that the power consumption of the server is increased, and the problem of overlarge noise caused by simultaneous rotation of a plurality of fans exists.
Secondly, the smart device starts to work in the state of S5, and the amount of heat generated is very considerable, in this case, the fan needs to be started to dissipate the heat. At this time, the BMC does not start to operate and cannot perform regulation, and in the general server fan regulation scheme, in the S5 state, the BMC does not control the fan even if the BMC operates normally.
And thirdly, the BMC controls the rotating speed of the fan globally according to the temperature of the whole case. However, in the whole machine box, although there is a temperature difference between the temperature measuring points, the temperature difference is not too large, so all fans can rotate simultaneously, the situation that the temperature measuring point at a certain position is normal temperature and the BMC controls the fan not to rotate is avoided, meanwhile, some intelligent devices do not have a temperature Sensor, the BMC cannot effectively identify the temperature Sensor, and even cannot radiate the heat quantity high point of a certain intelligent device in a targeted manner.
Finally, in the current design, in the S5 state, the CPLD controls the rotation of all fans at a fixed rotation speed, which far exceeds the heat dissipation requirement of the smart device, not only increasing power consumption, but also increasing noise.
At present, customers reflect that only after one smart card is inserted into a server, in the state of S5, the fan is completely rotated, the noise is too high, the power consumption is increased, and the layout work of the server in the computer room is also seriously affected.
Disclosure of Invention
The invention provides a technical scheme of an intelligent regulation and control method of a server fan in an S5 state, which is applied to a general AI server system. Under the S5 state, the server fan control is truly intelligent, and the fan is controlled to run at the same rotating speed, wherein the temperature is high, and the fan blows at a place, but not the same view. Therefore, the problems of overhigh fan power consumption and overlarge noise in the traditional server heat dissipation scheme are solved.
Based on the problems, the technical scheme of the invention is as follows: an intelligent regulation and control method for a server fan in an S5 state.
The BMC is not actively hosted by the server as a manager. Therefore, in the state of S0, the server heat dissipation regulation and control scheme is not changed, and the original control scheme is maintained.
First, in a logic editor, particularly a UFM of a CPLD, a lookup table is maintained, which includes: and each intelligent device corresponds to the fan and the heat dissipation required rotating speed percentage of each intelligent device.
In the S5 state, the CPLD is responsible for implementing the fan scheme because the BMC is not involved in fan regulation. In the current design, the on-site situation of a data storage card or a cloud data card or a smart device (on-site signals of smart devices such as OCP and SmartNIC) is connected to the CPLD, so the CPLD recognizes the on-site situation, and if the smart device exists in a common PCIE Slot, the PCH notifies the CPLD through an LPC bus. Based on the current hardware scheme architecture, the CPLD can completely know the presence of all smart devices.
Based on the current hardware architecture, the CPLD codes are only required to be modified according to a heat dissipation strategy, so that the CPLD does not mechanically and uniformly control all fans to rotate to realize heat dissipation any more, the high heat point can be intelligently identified, the rotating speed of the corresponding fan can be controlled in a targeted manner, and further the heat dissipation work is completed with low power consumption and low noise.
In particular, the method comprises the following steps of,
in the S5 state, the BMC does not participate in fan regulation, and the CPLD controls the fan state according to in-place signals of other intelligent equipment in the system; one fan is used for radiating heat of one or more intelligent devices, and the CPLD is used for controlling the fan to operate at a corresponding rotating speed according to the percentage of the rotating speed required by the heat radiation of each intelligent device.
When one fan dissipates heat of a plurality of intelligent devices, the rotating speed of the fan is the percentage sum of the heat dissipation requirements of the intelligent devices; if the percentage sum of the heat dissipation requirement rotating speeds of the intelligent devices is less than 100%, the rotating speed of the fan is the percentage sum of the heat dissipation requirement rotating speeds. If the percentage sum of the heat dissipation requirement rotating speeds is greater than 100%, the rotating speed of the fan is 100% output, and the rotating speed of the adjacent fan is twice output after the percentage sum of the heat dissipation requirement rotating speeds subtracts 100%.
After the BMC runs normally, the BMC monitors temperature values near each intelligent device, and the BMC sends the temperature values to the CPLD through I2C; and the CPLD adjusts the rotating speed of the corresponding fan according to the corresponding relation between the temperature value and the rotating speed of the fan, and refreshes the data in the UFM.
Wherein, the technical terms in the above scheme are explained as follows:
CPLD, Complex Programmable Logic Device, is a Complex Programmable Logic Device.
The BMC is a Basebard Management Controller and is used for managing the server mainboard.
The UFM is a Flash area provided for users in the CPLD and can be used for storing some important information, and data cannot be lost after the CPLD is powered off.
PCIE: a peripheral component interconnect express is a high-speed serial computer expansion bus standard, a CPU of an Intel new platform comprises 64 PCIE Lanes which are divided into 16 x4 PCIE ports and can support 16 NVME hard disks.
State S5: the server is in a state where an AC power cord is plugged in.
State S0: and in the server, pressing the Power Button to obtain the state after the DC is electrified.
LPC: the original name is Low pin count Bus, which is used to connect Low bandwidth devices to the CPU.
The invention has the advantages that: based on the original server hardware architecture, any hardware scheme does not need to be modified. And integrating the corresponding relation between all intelligent devices and the fan and the requirement on heat dissipation into a lookup table, and curing the lookup table in the UFM of the CPLD. After the CPLD identifies the in-place situation of the intelligent device, the corresponding fan and the rotating speed of the fan are determined in the lookup table, and the corresponding fan is controlled to rotate independently, so that the mode of controlling the rotation of all fans in the traditional fan control scheme is not used. Under the condition of meeting the heat dissipation requirement, the power consumption and the noise of the server are reduced, the product competitiveness is improved, and the customer experience is improved.
Drawings
The invention is further described with reference to the following figures and examples:
FIG. 1 is a schematic diagram of an intelligent fan control scheme according to the present disclosure;
FIG. 2 is a schematic diagram of a conventional server fan control scheme;
Detailed Description
Example (b):
firstly, a lookup table is maintained in the UFM of the CPLD, and the format of the lookup table is as follows;
secondly, in the state of S5, the CPLD detects the in-place status of the OCP card and the SmartNIC card, and confirms the in-place status of the PCIE device on the PCIE Slot by analyzing the LPC bus protocol, and controls the rotation of the corresponding fan according to the corresponding relationship in the lookup table. For example, if there is a smart device in the PCIE1 Slot, the CPLD only controls "fan 2" to rotate at 40% of the rotation speed, while the other fans do not rotate.
Thirdly, if the CPLD detects that a plurality of smart devices corresponding to the same fan are in place, the heat dissipation rotation speeds of the smart devices are respectively a, B, and C … …, if Σ (a, B, C … …) >100, the corresponding fan rotation speed is set to 100%, and the adjacent fan rotation speed is set to 2 (∑ (a, B, C … …) -100). For example, "OCP" and "PCIE 0" in the table both use "fan 3" to dissipate heat, and the heat dissipation requirement is 110%, at this time, the CPLD controls "fan 3" to operate at 100% of the rotation speed, and controls "fan 2" to operate at 20% of the rotation speed.
Finally, since the intelligent device inserted into the PCIE Slot is uncertain, after the BMC operates normally, the temperature values near each intelligent device monitored by the BMC are sent to the CPLD through I2C; the CPLD can adjust the rotating speed of the corresponding fan according to the corresponding relation between the temperature value and the rotating speed of the fan, and refreshes data in the UFM to realize automatic calibration of the rotating speed of the fan.
The embodiments are merely illustrative of the principles and effects of the present invention, and do not limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical concepts disclosed herein be covered by the appended claims.
Claims (9)
1. In the S5 state, the BMC does not participate in the fan control, and a logic editor controls the fan state according to in-place signals of other intelligent equipment in the system; the method is characterized in that: the logic editor controls the fans to operate at corresponding rotating speeds according to the percentage of the rotating speed required by heat dissipation of each intelligent device;
when one fan dissipates heat of a plurality of intelligent devices, the rotating speed of the fan is the percentage sum of the heat dissipation requirements of the intelligent devices; if the percentage sum of the heat dissipation requirement rotating speeds is greater than 100%, the rotating speed of the fan is 100% output, and the rotating speed of the adjacent fan is twice output after the percentage sum of the heat dissipation requirement rotating speeds subtracts 100%.
2. The intelligent regulation and control method for the server fan in the S5 state, according to claim 1, wherein: the fan is used for radiating the intelligent equipment, and if the percentage sum of the radiating requirement rotating speeds of the intelligent equipment is less than 100%, the rotating speed of the fan is the percentage sum of the radiating requirement rotating speeds.
3. The intelligent regulation and control method for the server fan in the S5 state, according to claim 1, wherein: the logic changer includes a complex programmable logic changer, i.e., a CPLD.
4. The intelligent regulation and control method for the server fan in the S5 state, according to claim 3, wherein: in the state of S5, the CPLD detects the presence of the smart device corresponding to the data storage card or the cloud data card. The in-place conditions of the OCP card and the SmartNIC card and the in-place conditions of the PCIE corresponding to the intelligent equipment on the PCIE Slot are confirmed by analyzing the LPC bus protocol.
5. The intelligent regulation and control method of the server fan in the S5 state of claim 4, wherein: the CPLD detects the in-place conditions of the OCP card and the SmartNIC card, and confirms the in-place condition of the intelligent equipment corresponding to the PCIE on the PCIE Slot by analyzing the LPC bus protocol.
6. The intelligent regulation and control method for the server fan in the S5 state, according to claim 1, wherein: in the UFM of the CPLD, a lookup table is maintained, the lookup table comprising: and each intelligent device corresponds to the fan and the heat dissipation required rotating speed percentage of each intelligent device.
7. The intelligent regulation and control method for the server fan in the S5 state, according to claim 1, wherein: after the BMC runs normally, the BMC monitors temperature values near each intelligent device, and the BMC sends the temperature values to the CPLD through I2C; and the CPLD adjusts the rotating speed of the corresponding fan according to the corresponding relation between the temperature value and the rotating speed of the fan, and refreshes the data in the UFM.
8. The intelligent regulation and control method for the server fan in the S5 state, according to claim 1, wherein: the S5 state is a state after the AC power cord is plugged in.
9. The intelligent regulation and control method for the server fan in the S5 state, according to claim 1, wherein: the BMC is used as a manager of the server, and in the S0 state, the BMC controls the fan heat dissipation regulation scheme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010745738.6A CN112065757A (en) | 2020-07-29 | 2020-07-29 | Intelligent regulation and control method for server fan in S5 state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010745738.6A CN112065757A (en) | 2020-07-29 | 2020-07-29 | Intelligent regulation and control method for server fan in S5 state |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112065757A true CN112065757A (en) | 2020-12-11 |
Family
ID=73656710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010745738.6A Withdrawn CN112065757A (en) | 2020-07-29 | 2020-07-29 | Intelligent regulation and control method for server fan in S5 state |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112065757A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115993881A (en) * | 2023-03-20 | 2023-04-21 | 新华三信息技术有限公司 | Fan speed regulation strategy determining method and device, electronic equipment and storage medium |
-
2020
- 2020-07-29 CN CN202010745738.6A patent/CN112065757A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115993881A (en) * | 2023-03-20 | 2023-04-21 | 新华三信息技术有限公司 | Fan speed regulation strategy determining method and device, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7925911B2 (en) | Managing computer power among a plurality of computers | |
| US20090070611A1 (en) | Managing Computer Power Consumption In A Data Center | |
| US7426109B2 (en) | System and method for adaptive information handling system cooling profiles | |
| JP5254734B2 (en) | Method for managing power of electronic system, computer program, and electronic system | |
| US20090132842A1 (en) | Managing Computer Power Consumption In A Computer Equipment Rack | |
| US6363449B1 (en) | Method and apparatus for providing interchassis communication and management | |
| TWI344593B (en) | Power allocation management in an information handling system | |
| US6904534B2 (en) | Progressive CPU sleep state duty cycle to limit peak power of multiple computers on shared power distribution unit | |
| US7984311B2 (en) | Demand based power allocation | |
| US7827421B2 (en) | System and method for throttling power in one or more information handling systems | |
| US8656003B2 (en) | Method for controlling rack system using RMC to determine type of node based on FRU's message when status of chassis is changed | |
| TW201211742A (en) | Power bus current bounding using local current-limiting soft-switches and device requirements information | |
| US9037878B2 (en) | Server rack system | |
| US20200150733A1 (en) | Mass storage device electrical power consumption monitoring | |
| WO2016151779A1 (en) | Information processing device and management device | |
| JP2003150409A5 (en) | ||
| CN112065757A (en) | Intelligent regulation and control method for server fan in S5 state | |
| CN111324503B (en) | Machine frame management device, method and computer readable storage medium | |
| CN111637079B (en) | Mainboard, fan control system and method | |
| GB2392268A (en) | Managing the voltage level of at least one processor in a group of processors based on the number of processors loaded and the thermal and power envelope | |
| US20070148019A1 (en) | Method and device for connecting several types of fans | |
| CN110609801A (en) | Adapter plate and server system | |
| US11927998B2 (en) | System performance using optimal adapter efficiency | |
| WO2023029375A1 (en) | Power source consumption management apparatus for four-way server | |
| TWI719461B (en) | Server power managing method and system thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201211 |
|
| WW01 | Invention patent application withdrawn after publication |