CN105278644A - Method for rotating server fan at full speed after BMC failure - Google Patents
Method for rotating server fan at full speed after BMC failure Download PDFInfo
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- CN105278644A CN105278644A CN201510614437.9A CN201510614437A CN105278644A CN 105278644 A CN105278644 A CN 105278644A CN 201510614437 A CN201510614437 A CN 201510614437A CN 105278644 A CN105278644 A CN 105278644A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 claims abstract description 32
- 230000000737 periodic effect Effects 0.000 claims abstract description 5
- 230000033228 biological regulation Effects 0.000 claims abstract description 4
- 230000009467 reduction Effects 0.000 claims description 4
- 238000012938 design process Methods 0.000 claims description 2
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- 230000002159 abnormal effect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
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Abstract
The invention discloses a method for full-speed rotation of a server fan after BMC failure, which comprises the following specific implementation processes: inside the server, adopt BMC as the controller of fan rotational speed to BMC outputs periodic pulse signal as feeding the dog signal under normal operating condition, connects the singlechip with the BMC chip, and this singlechip is as the monitoring unit of BMC operating condition, through the feeding dog signal that monitoring BMC was lost, realizes the monitoring to whether normal work of BMC, and when BMC inefficacy back, regulation and control fan rotational speed guarantees the normal heat dissipation of system. Compared with the prior art, the method for full-speed rotation of the server fan after BMC failure realizes monitoring of the BMC working state, and through detecting the MBC working state, after abnormal BMC failure work is found, the gating circuit gates a high-level signal to realize control of the rotating speed of the fan, so that the server can work normally, and the method is high in practicability and easy to popularize.
Description
Technical field
The present invention relates to computer server technical field, specifically a kind of practical, BMC lost efficacy after the server fan method of rotating at full speed.
Background technology
Along with the fast development of technology, people are for the ease for use of product, and dirigibility, versatility, the requirement of stability and power consumption aspect is more and more higher.
In current server design, the management for mainboard generally adopts BMC chip to manage, and BMC can realize power consumption, the detection of temperature and rotation speed of the fan and control, realizes better managing mainboard.In current server application, people are more and more higher for the requirement of server in power consumption and stability, but the scheme of BMC chip can exist certain inefficacy ratio.When after BMC chip failure, fan is out of hand.Therefore, cannot the normal work of Deterministic service device system, thus, cause the overall power of server and temperature to rise, just can cause the operation irregularity of server further.
In order to solve above problem, the method for designing that a kind of BMC inefficacy aft-fan keeps rotating at full speed is proposed herein.This method for designing, can realize the monitoring of BMC duty, and by detecting the duty of MBC, when after discovery BMC inefficacy operation irregularity, gating line gating space signal realizes the full-speed operation of fan.Thus Deterministic service device can normally work.
Summary of the invention
Technical assignment of the present invention is for above weak point, a kind of method that after providing practical, BMC to lose efficacy, server fan rotates at full speed.
The method that after BMC lost efficacy, server fan rotates at full speed, its specific design process is:
At server internal, adopt BMC as the controller of rotation speed of the fan, and BMC exports periodic pulse signal in normal operation as feeding-dog signal, BMC chip is connected single-chip microcomputer, and this single-chip microcomputer, as the monitoring means of BMC duty, loses by monitoring BMC the feeding-dog signal, realize the monitoring whether BMC is normally worked, after BMC lost efficacy, regulation and control rotation speed of the fan, ensured the proper heat reduction of system.
In above-mentioned steps, the gate of alternative is adopted to select as the switching of inefficacy aft-fan control signal and normal control signal; This gate connects high level signal simultaneously, the fan control signal after losing efficacy as BMC, makes fan be in rotary state at full speed.
During described single-chip microcomputer monitoring pulse signal, lose by constantly monitoring BMC the feeding-dog signal, the gating carrying out gate controls; When BMC normally works, feeding-dog signal exists always, and single-chip microcomputer, by exporting high level to gate, realizes controlling rotation speed of the fan; After single-chip microcomputer monitoring is less than feeding-dog signal, by gate output low level, realize the control to rotation speed of the fan.
Described gate realizes the gating of two paths of signals under BMC different conditions, and when under BMC normal operating conditions, gate, by the control signal of receiving front-end, realizes the normal output of FANCTL signal, ensures the normal work of fan; After BMC lost efficacy, gate realized the output of power supply high level signal, made fan be in rotary state at full speed, ensured the normal heat sinking function of system.
The method that after a kind of BMC of the present invention lost efficacy, server fan rotates at full speed, has the following advantages:
The method that after a kind of BMC that the present invention proposes lost efficacy, server fan rotates at full speed, after BMC lost efficacy, realize the controllable rotating speed of fan, according to the demand of client for practical application, make fan operate in certain rotating speed, thus realize on the basis of meeting customer need, the proper heat reduction of guarantee system, further guarantee system can normally work, practical, is easy to promote.
Accompanying drawing explanation
Accompanying drawing 1 realizes schematic diagram for of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
The method that after the invention provides a kind of BMC inefficacy, server fan rotates at full speed, the present invention is the periodic pulse signal sent by monitoring BMC normal operating conditions, determines whether BMC is in failure state.By the state determined, realize the signal gating of gating line, ensure that fan still can work according to normal fan control signal after BMC loses efficacy, ensure the normal heat sinking function of system.
As shown in Figure 1, its specific implementation process is:
At server internal, adopt BMC as the controller of rotation speed of the fan, and BMC exports periodic pulse signal in normal operation as feeding-dog signal, BMC chip is connected single-chip microcomputer, and this single-chip microcomputer is as the monitoring means of BMC duty, the feeding-dog signal is lost by monitoring BMC, realize the monitoring whether BMC is normally worked, understand current BMC and whether be in normal operating conditions, after BMC lost efficacy, regulation and control rotation speed of the fan, ensures the proper heat reduction of system.
In above-mentioned steps, the gate of alternative is adopted to select as the switching of inefficacy aft-fan control signal and normal control signal; This gate connects high level signal simultaneously, the fan control signal after losing efficacy as BMC, makes fan be in rotary state at full speed.
Adopt the gate of alternative to be used as inefficacy aft-fan control signal (after BMC inefficacy, controlling fan by a high level signal) to select with the switching of normal control signal.By the monitoring means of BMC and gate realize BMC lost efficacy after control to fan, make fan be in rotary state at full speed, be used for the heat radiation of guarantee system and function normal, single-chip microcomputer here can adopt the single-chip microcomputer of Microchip.
When the duty of BMC monitored by described single-chip microcomputer, lose by constantly monitoring BMC the feeding-dog signal, the gating carrying out gate controls; When BMC normally works, feeding-dog signal exists always, and single-chip microcomputer, by exporting high level to gate, realizes controlling rotation speed of the fan; After single-chip microcomputer monitoring is less than feeding-dog signal, by gate output low level, realize the control to rotation speed of the fan.
Each provide two-way fan control signal in circuit, a road provides for BMC, realizes the fan control under normal condition; Another road provides for power supply, realizes the control of BMC inefficacy aft-fan.
In the above-mentioned methods, relate to following functions part, be specially:
BMC: normal BMC part in mainboard, in this fan control circuit, mainly carry out the output of BMC duty indicator signal, when BMC normally works, it continuously can export feeding-dog signal, is supplied to BMC Monitoring Line; After BMC lost efficacy, this feeding-dog signal just can not send again, and BMC Monitoring Line catches less than feeding-dog signal, just can judge that BMC is in failure state.
BMC Monitoring Line, i.e. single-chip microcomputer: be mainly used to the monitoring carrying out BMC state, lose by constantly monitoring BMC the feeding-dog signal, and the gating carrying out gate controls.When BMC normally works, feeding-dog signal exists always, and BMC Monitoring Line exports high level by GP1; After the monitoring of BMC Monitoring Line is less than feeding-dog signal, by GP1 output low level.
Gate: this mainly realizes the gating of two paths of signals under BMC different conditions, when under BMC normal operating conditions, gate, by the control signal of receiving front-end, realizes the normal output of FANCTL signal, ensures the normal work of fan; After BMC lost efficacy, gate realized the output of the pwr signal of power supply high level, made fan be in rotary state at full speed, ensured the normal heat sinking function of system.
Above-mentioned embodiment is only concrete case of the present invention; scope of patent protection of the present invention includes but not limited to above-mentioned embodiment; after any a kind of BMC according to the invention lost efficacy the method that server fan rotates at full speed claims and the those of ordinary skill of any described technical field to its suitable change done or replacement, all should fall into scope of patent protection of the present invention.
Claims (4)
1. the method that after a BMC inefficacy, server fan rotates at full speed, it is characterized in that, its specific design process is: at server internal, adopt BMC as the controller of rotation speed of the fan, and BMC exports periodic pulse signal in normal operation as feeding-dog signal, BMC chip is connected single-chip microcomputer, this single-chip microcomputer is as the monitoring means of BMC duty, the feeding-dog signal is lost by monitoring BMC, realize the monitoring whether BMC is normally worked, after BMC lost efficacy, regulation and control rotation speed of the fan, ensured the proper heat reduction of system.
2. the method that after a kind of BMC inefficacy according to claim 1, server fan rotates at full speed, is characterized in that, in above-mentioned steps, adopt the gate of alternative to select as the switching of inefficacy aft-fan control signal and normal control signal; This gate connects the power supply exporting high level signal simultaneously, the fan control signal after losing efficacy as BMC, makes fan be in rotary state at full speed.
3. the method that after a kind of BMC inefficacy according to claim 2, server fan rotates at full speed, is characterized in that, during described single-chip microcomputer monitoring pulse signal, losing by constantly monitoring BMC the feeding-dog signal, carry out the gating control of gate; When BMC normally works, feeding-dog signal exists always, and single-chip microcomputer, by exporting high level to gate, realizes controlling rotation speed of the fan; After single-chip microcomputer monitoring is less than feeding-dog signal, by gate output low level, realize the control to rotation speed of the fan.
4. the method that after a kind of BMC inefficacy according to claim 2, server fan rotates at full speed, it is characterized in that, described gate realizes the gating of two paths of signals under BMC different conditions, when under BMC normal operating conditions, gate is by the control signal of receiving front-end, realize the normal output of FANCTL signal, ensure the normal work of fan; After BMC lost efficacy, gate realized the output of power supply high level signal, made fan be in rotary state at full speed, ensured the normal heat sinking function of system.
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| CN201510614437.9A CN105278644A (en) | 2015-09-24 | 2015-09-24 | Method for rotating server fan at full speed after BMC failure |
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| CN201510614437.9A CN105278644A (en) | 2015-09-24 | 2015-09-24 | Method for rotating server fan at full speed after BMC failure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802844A (en) * | 2016-12-30 | 2017-06-06 | 郑州云海信息技术有限公司 | A kind of fan control system and method for fan control signal state |
| CN107023504A (en) * | 2017-06-02 | 2017-08-08 | 郑州云海信息技术有限公司 | A kind of fan control system and control method based on BMC |
| CN107315369A (en) * | 2017-07-12 | 2017-11-03 | 郑州云海信息技术有限公司 | A kind of BMC chip intelligently assists processing unit and processing method |
| CN107420336A (en) * | 2017-06-29 | 2017-12-01 | 郑州云海信息技术有限公司 | A kind of high reliability fan control device and method based on server |
| CN107939718A (en) * | 2017-12-21 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of server fan method of controlling rotation based on CPLD FPGA |
| CN109116949A (en) * | 2018-07-27 | 2019-01-01 | 郑州云海信息技术有限公司 | A method of it prevents BMC from hanging after death fan and stalls |
| CN109162953A (en) * | 2018-11-01 | 2019-01-08 | 郑州云海信息技术有限公司 | A kind of fan control device and server |
| CN109236714A (en) * | 2018-11-06 | 2019-01-18 | 英业达科技有限公司 | Fan control circuitry and fan control system |
| CN109681456A (en) * | 2018-12-28 | 2019-04-26 | 郑州云海信息技术有限公司 | A kind of fan control device and method |
| CN111894887A (en) * | 2020-09-01 | 2020-11-06 | 河南艾牧智能设备有限公司 | Safe operation method of EC fan for livestock and poultry house |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106802844A (en) * | 2016-12-30 | 2017-06-06 | 郑州云海信息技术有限公司 | A kind of fan control system and method for fan control signal state |
| CN107023504A (en) * | 2017-06-02 | 2017-08-08 | 郑州云海信息技术有限公司 | A kind of fan control system and control method based on BMC |
| CN107420336A (en) * | 2017-06-29 | 2017-12-01 | 郑州云海信息技术有限公司 | A kind of high reliability fan control device and method based on server |
| CN107315369A (en) * | 2017-07-12 | 2017-11-03 | 郑州云海信息技术有限公司 | A kind of BMC chip intelligently assists processing unit and processing method |
| CN107315369B (en) * | 2017-07-12 | 2019-12-17 | 苏州浪潮智能科技有限公司 | Intelligent co-processing device for BMC (baseboard management controller) chip |
| CN107939718A (en) * | 2017-12-21 | 2018-04-20 | 郑州云海信息技术有限公司 | A kind of server fan method of controlling rotation based on CPLD FPGA |
| CN109116949A (en) * | 2018-07-27 | 2019-01-01 | 郑州云海信息技术有限公司 | A method of it prevents BMC from hanging after death fan and stalls |
| CN109162953A (en) * | 2018-11-01 | 2019-01-08 | 郑州云海信息技术有限公司 | A kind of fan control device and server |
| CN109236714A (en) * | 2018-11-06 | 2019-01-18 | 英业达科技有限公司 | Fan control circuitry and fan control system |
| CN109236714B (en) * | 2018-11-06 | 2020-08-07 | 英业达科技有限公司 | Fan control circuit and fan control system |
| CN109681456A (en) * | 2018-12-28 | 2019-04-26 | 郑州云海信息技术有限公司 | A kind of fan control device and method |
| CN111894887A (en) * | 2020-09-01 | 2020-11-06 | 河南艾牧智能设备有限公司 | Safe operation method of EC fan for livestock and poultry house |
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Application publication date: 20160127 |