CN112463501A - Method, equipment and storage medium for rapidly positioning fault of abnormal power failure - Google Patents
Method, equipment and storage medium for rapidly positioning fault of abnormal power failure Download PDFInfo
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Abstract
The application discloses a fault rapid positioning method for abnormal power failure, which comprises the following steps: when the condition that the PG signal is abnormal is detected, the PG signal of each power supply module is obtained; positioning the power supply module with the fault according to the PG signal of each power supply module; and displaying the information of the positioned power supply module with the fault by using a display device. By applying the scheme of the application, the fault point is effectively positioned when abnormal power failure occurs. The application also provides fault rapid positioning equipment and storage medium for abnormal power failure, and the fault rapid positioning equipment and the storage medium have corresponding technical effects.
Description
Technical Field
The invention relates to the technical field of servers, in particular to a fault rapid positioning method, equipment and a storage medium for abnormal power failure.
Background
In cloud computing and big data era, the deployment density of servers of a data center is higher and higher, and the requirement on the stability of the servers of the data center is higher and higher. However, as the service time of the server becomes longer, the failure rate will inevitably rise, and once the server is abnormally powered down, the problem point needs to be located at the fastest speed, the root cause is analyzed, a solution is provided, and the same problem of a large number of machines is avoided.
When a server has a power failure fault in a client data center machine room, the fault reason generally has certain relevance with the current use environment and the running service, and the power failure fault condition generally cannot be stable, so that higher requirements are provided for the accuracy of fault judgment and processing, namely, the fault point can be determined on site at the first time, and further, targeted analysis can be performed.
Currently, when a fault is determined, the fault is usually determined by using a log recorded by the BMC. However, for the power failure situations such as the server down and the automatic shutdown, the log in the BMC usually records all power supply parts with abnormality, that is, it is impossible to accurately locate which group of power supply is the first power failure abnormality, which may enlarge the analysis range of the fault, bring much inconvenience to fault determination, and is not beneficial to accurately locating the fault point in the first time.
In summary, how to effectively locate the fault point is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide a fault rapid positioning method, equipment and a storage medium for abnormal power failure, so as to effectively position fault points.
In order to solve the technical problems, the invention provides the following technical scheme:
a fault rapid positioning method for abnormal power failure comprises the following steps:
when the condition that the PG signal is abnormal is detected, the PG signal of each power supply module is obtained;
positioning the power supply module with the fault according to the PG signal of each power supply module;
and displaying the information of the positioned power supply module with the fault by using a display device.
Preferably, the acquiring the PG signals of the respective power supply modules when detecting that there is an abnormality in the PG signals includes:
detecting PG signals of each power supply module according to a preset detection period;
when the PG signal of any power supply module is detected to be low level, the condition that the PG signal is abnormal is determined, and the PG signals of all the power supply modules at the current moment are acquired.
Preferably, the locating the power supply module with the fault according to the PG signal of each power supply module includes:
sequentially judging the level states of PG signals of all power supply modules according to the sequence from front to back of a power-on time sequence;
when the PG signal in the low level state appears for the first time, the power supply module sending the PG signal in the low level state is used as the positioned power supply module with the fault.
Preferably, the locating the power supply module with the fault according to the PG signal of each power supply module includes:
sequentially judging the level states of PG signals of all power supply modules according to the sequence from back to front of the power-on time sequence;
when a high-level PG signal appears for the first time, a power supply module of the next stage of the power supply module which sends the high-level PG signal is used as a positioned power supply module which has a fault.
Preferably, the locating the power supply module with the fault according to the PG signal of each power supply module includes:
traversing the level states of the PG signals of all the power supply modules;
when the PG signals sent by the power supply modules of all levels are in a low level state, the power supply module of the first level is used as the positioned power supply module with a fault;
when only the PG signal sent by the power supply module of the last stage is in a low level state, taking the power supply module of the last stage as a positioned power supply module with a fault;
when a PG signal sent by a target power supply module is in a low level state and a PG signal sent by a power supply module at the previous stage of the target power supply module is in a high level state, taking the target power supply module as a positioned power supply module with a fault; the target power supply module is any other power supply module except the power supply module of the first stage and the power supply module of the last stage.
Preferably, the method further comprises the following steps:
after the target power supply module is used as a positioned power supply module with a fault, judging whether PG signals sent by each power supply module at the front stage of the target power supply module are all in a high level state or not and whether PG signals sent by each power supply module at the rear stage of the target power supply module are all in a low level state or not;
and if not, outputting first prompt information by using the display device.
A fault rapid positioning device for abnormal power failure comprises:
the detection device is used for acquiring the PG signals of all the power supply modules when the condition that the PG signals are abnormal is detected;
the judging device is used for positioning the power supply module with the fault according to the PG signal of each power supply module;
and the display device is used for displaying the information of the positioned power supply module with the fault.
Preferably, the judging device is specifically configured to:
traversing the level states of the PG signals of all the power supply modules;
when the PG signals sent by the power supply modules of all levels are in a low level state, the power supply module of the first level is used as the positioned power supply module with a fault;
when only the PG signal sent by the power supply module of the last stage is in a low level state, taking the power supply module of the last stage as a positioned power supply module with a fault;
when a PG signal sent by a target power supply module is in a low level state and a PG signal sent by a power supply module at the previous stage of the target power supply module is in a high level state, taking the target power supply module as a positioned power supply module with a fault; the target power supply module is any other power supply module except the power supply module of the first stage and the power supply module of the last stage.
Preferably, the determining device is further configured to:
after the target power supply module is used as a positioned power supply module with a fault, judging whether PG signals sent by each power supply module at the front stage of the target power supply module are all in a high level state or not, and whether PG signals sent by each power supply module at the rear stage of the target power supply module are all in a first level state or not;
and if not, outputting first prompt information by using the display device.
A computer readable storage medium, on which a computer program is stored, and when being executed by a processor, the computer program implements the steps of the fault fast-positioning method for abnormal power failure according to any one of the foregoing.
By applying the technical scheme provided by the embodiment of the invention, in the current server framework, the power-on control of each power supply module is realized according to the logic sequence of the preceding stage and the subsequent stage by the PG signal sent by each power supply module in the power-on and power-off time sequence, so that when the condition that the PG signal is abnormal is detected, the PG signal of each power supply module is obtained, the power supply module with the fault is positioned according to the PG signal of each power supply module, and then the information of the positioned power supply module with the fault is displayed by using the display device, so that a worker can quickly determine the fault point, namely, the power supply module with the fault is quickly and conveniently known. Therefore, the scheme of the application effectively realizes the positioning of the fault point during abnormal power failure.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a flow chart of an implementation of a fault fast-positioning method for abnormal power failure according to the present invention;
fig. 2 is a schematic structural diagram of a fault fast-positioning device for abnormal power failure in the present invention.
Detailed Description
The core of the invention is to provide a method for rapidly positioning the fault of the abnormal power failure, which effectively realizes the positioning of the fault point during the abnormal power failure.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a flowchart illustrating an implementation of a method for quickly locating a fault of an abnormal power failure according to the present invention, where the method for quickly locating a fault of an abnormal power failure may include the following steps:
step S101: and when the PG signal abnormality is detected, acquiring PG signals of all power supply modules.
In particular, the scheme of the present application can be generally applied to CPLDs. In the current server architecture, in the on-off timing sequence, the power-on control of each power supply module is realized by controlling the logic sequence of the rear stage according to the front stage by the PG signal sent by each power supply module. Specifically, the CPLD may receive a PG signal sent by a power supply module of a previous stage, and then send an EN signal to a power supply module of a subsequent stage according to a timing requirement to enable, so as to control the on/off timing of the server to meet a requirement.
For example, in fig. 2, the power supply provides a high voltage, and the voltage is converted by the first power supply module to a voltage required by the server system. When the voltage conversion is finished, the first power supply module can send out a PG1 signal to the CPLD to indicate that the first power supply module starts to work and the voltage conversion is finished. When receiving the PG1 sent by the first power supply module, the CPLD can send an EN2 signal to the second power supply module, so that the second power supply module is powered on to operate, then can receive the PG2 sent by the second power supply module, and the CPLD can send an EN3 signal to the third power supply module, and so on until each power supply module is powered on to operate according to the time sequence. Each of the power supply modules in fig. 2 may be generally disposed on a server motherboard.
According to the method and the device, whether the PG signal is abnormal or not is detected in the running process of the server, and the current PG signals of each power supply module can be acquired if the PG signal is abnormal. Step S101 may be generally realized by a detection means.
The specific rule for detecting whether there is a PG signal abnormality may be set and adjusted according to actual needs, and in a specific embodiment of the present invention, the step S101 may specifically include:
the method comprises the following steps: detecting PG signals of each power supply module according to a preset detection period;
step two: when the PG signal of any power supply module is detected to be low level, the condition that the PG signal is abnormal is determined, and the PG signals of all the power supply modules at the current moment are acquired.
In the embodiment, the PG signals of each power supply module are periodically detected, and once the PG signal of one power supply module is found to be at a low level, the condition that the PG signal is abnormal is determined, so that the method is simple and convenient. It should be noted that, in the general circuit, the PG signal is set to be active at a high level, so in this embodiment, when the PG signal of any power supply module is detected to be at a low level, it is determined that there is a PG signal abnormality, and in each of the following embodiments, the PG signal is also based on an active at a high level, but it is understood that, in some scenarios, if the server is set to be active at a low level, the scheme of the present application may be adaptively adjusted, and for example, the second step of step S101 in this case may be specifically a case where the PG signal abnormality is determined when the PG signal of any power supply module is detected to be at a high level.
Step S102: and positioning the power supply module with the fault according to the PG signal of each power supply module.
Because each power supply module has a certain power-on time sequence, and the power supply module at the rear stage depends on the normal operation of the power supply module at the front stage, the power supply module which sends out the abnormal PG signal at the first stage can be positioned as a fault power supply module from the power supply module at the first stage according to the sequence of the power-on time sequence.
The present application will usually provide a special determination device in the CPLD to implement the function of step S102.
In an embodiment of the present invention, step S102 may specifically include:
the method comprises the following steps: sequentially judging the level states of PG signals of all power supply modules according to the sequence from front to back of a power-on time sequence;
step two: when the PG signal in the low level state appears for the first time, the power supply module sending the PG signal in the low level state is used as the positioned power supply module with the fault.
In this embodiment, the level states of the PG signals of the power supply modules are sequentially determined from the front to the back according to the power-on timing sequence, and in another embodiment, the level states of the PG signals of the power supply modules may also be sequentially determined from the back to the front according to the power-on timing sequence. That is, in an embodiment of the present invention, step S102 may specifically include:
the method comprises the following steps: sequentially judging the level states of PG signals of all power supply modules according to the sequence from back to front of the power-on time sequence;
step two: when a high-level PG signal appears for the first time, a power supply module of the next stage of the power supply module which sends the high-level PG signal is used as a positioned power supply module which has a fault.
For example, in a specific situation, there are 5 power supply modules in total, and the power supply modules are the first power supply module, the second power supply module, the third power supply module, the fourth power supply module and the fifth power supply module in sequence from front to back according to the power-on sequence. For example, after step S101 is executed, the detecting device determines that the PG signals of the first to fifth power supply modules are: if the high level, the low level, and the low level are 11100, then in step S102, whether the determination is made sequentially from the front to the back according to the power-on sequence, or sequentially from the back to the front according to the power-on sequence, it can be determined that the fourth power supply module has failed.
In an embodiment of the present invention, step S102 may specifically include:
traversing the level states of the PG signals of all the power supply modules;
when the PG signals sent by the power supply modules of all levels are in a low level state, the power supply module of the first level is used as the positioned power supply module with a fault;
when only the PG signal sent by the power supply module of the last stage is in a low level state, taking the power supply module of the last stage as a positioned power supply module with a fault;
when the PG signal sent by the target power supply module is in a low level state and the PG signal sent by the power supply module at the previous stage of the target power supply module is in a high level state, taking the target power supply module as a positioned power supply module with a fault; the target power supply module is any other power supply module except the power supply module of the first stage and the power supply module of the last stage.
In practical applications, normally, the PG signals of the power supply modules at the front stage of the failed power supply module are all at a high level, and the PG signals of the failed power supply module and the power supply modules at the rear stage of the failed power supply module are all at a low level, for example, in the foregoing example, the PG signals of the first to fifth power supply modules are represented as 11100, and it is described that the fourth power supply module fails, so in the foregoing embodiment, only the PG signals are set to be sequentially determined from the front to the rear of the power-on timing sequence, or sequentially determined from the rear to the front of the power-on timing sequence, and the failed power supply module can be located.
However, in a small part of cases, taking the case where the real situation is the failure of the third power supply module as an example, there may occur, for example, 1100100, a case where a high level exists in the PG signals of the power supply modules at the rear stage of the failed power supply module, or a case where a low level exists in the PG signals of the power supply modules at the front stage of the failed power supply module, for example, 0100000. Such an inconvenience is usually caused by a PG signal detection abnormality or the like, and for example, although a PG signal output from a certain power supply module is actually at a low level, the CPLD erroneously recognizes it as a high level due to a disturbance or an abnormality occurring in the detection device itself of the CPLD. For such special situations, if the foregoing scheme of sequentially judging according to the sequence from the front to the back of the power-on sequence or sequentially judging according to the sequence from the back to the front of the power-on sequence is adopted, there is a problem of mislocation of the fault power supply module, and such special situations cannot be found.
For example, if a failure occurs in the third power supply module and the PG signal of each power supply module detected by the detection device is represented as 1100100, the sixth power supply module may be erroneously determined as a failure if it is determined in the order from the rear to the front in the power-on sequence.
In this embodiment, the level states of the PG signals of the respective power supply modules are traversed. In practical applications, after the traversal implementation is adopted, the following steps are generally further included:
the first step is as follows: after the target power supply module is used as the positioned power supply module with a fault, judging whether PG signals sent by each power supply module at the front stage of the target power supply module are all in a high level state or not and whether PG signals sent by each power supply module at the rear stage of the target power supply module are all in a low level state or not;
if yes, it is determined that the target power supply module is the located power supply module with the fault, and the current location is not abnormal, and is an accurate fault location, and step S103 may be triggered.
And if not, a second step may be performed: and outputting the first prompt message by using the display device.
When the result of the determination is negative, an unreasonable situation that a PG signal in a low level state exists in PG signals sent by each power supply module at a front stage of the target power supply module may occur, an unreasonable situation that a PG signal in a high level state exists in PG signals sent by each power supply module at a rear stage of the target power supply module may also occur, or both of the unreasonable situations may occur. Therefore, there is a possibility that the target power supply module located previously may be located incorrectly, for example, in the foregoing example, when the PG signal of each power supply module is represented as 1100100, the third or sixth power supply module may be the located power supply module with a fault.
In this embodiment, the second step is triggered whether the third power supply module is used as the located power supply module with the fault or the sixth power supply module is used as the located power supply module with the fault: and outputting the first prompt message by using the display device so as to remind the staff of noticing the special condition and further check the special condition.
The specific form of the first prompt message can be set and adjusted according to actual conditions, such as the full indicator light flickers.
Step S103: and displaying the information of the positioned power supply module with the fault by using a display device.
The specific type of the display device can be set and adjusted according to actual needs, and in practical application, in consideration of the cost of the display device, a plurality of indicator lamps can be generally utilized to realize the functions of the display device.
For example, in a specific case, the display device receives LED _ post _ SEG <7:0> corresponding to the failed power supply module, so as to display the coded information of 16 systems on post, and the operator can know the number of the failed power supply module by looking at the display device. Therefore, the power supply module which is positioned by the method and the device can be conveniently and quickly determined.
By applying the technical scheme provided by the embodiment of the invention, in the current server framework, the power-on control of each power supply module is realized according to the logic sequence of the preceding stage and the subsequent stage by the PG signal sent by each power supply module in the power-on and power-off time sequence, so that when the condition that the PG signal is abnormal is detected, the PG signal of each power supply module is obtained, the power supply module with the fault is positioned according to the PG signal of each power supply module, and then the information of the positioned power supply module with the fault is displayed by using the display device, so that a worker can quickly determine the fault point, namely, the power supply module with the fault is quickly and conveniently known. Therefore, the scheme of the application effectively realizes the positioning of the fault point during abnormal power failure.
Corresponding to the above method embodiment, the embodiment of the present invention further provides a device for quickly locating a fault of an abnormal power failure, which can be referred to in correspondence with the above.
Referring to fig. 2, a schematic structural diagram of a fault fast-positioning device for abnormal power failure in the present invention includes:
a detecting device 201, configured to obtain PG signals of each power supply module when detecting that there is a PG signal abnormality;
the judging device 202 is used for positioning the power supply module with the fault according to the PG signal of each power supply module;
a display device 203 for displaying the information of the power supply module with the fault
In an embodiment of the present invention, the detecting device 201 is specifically configured to:
detecting PG signals of each power supply module according to a preset detection period;
when the PG signal of any power supply module is detected to be low level, the condition that the PG signal is abnormal is determined, and the PG signals of all the power supply modules at the current moment are acquired.
In an embodiment of the present invention, the determining device 202 is specifically configured to:
sequentially judging the level states of PG signals of all power supply modules according to the sequence from front to back of a power-on time sequence;
when the PG signal in the low level state appears for the first time, the power supply module sending the PG signal in the low level state is used as the positioned power supply module with the fault.
In an embodiment of the present invention, the determining device 202 is specifically configured to:
sequentially judging the level states of PG signals of all power supply modules according to the sequence from back to front of the power-on time sequence;
when a high-level PG signal appears for the first time, a power supply module of the next stage of the power supply module which sends the high-level PG signal is used as a positioned power supply module which has a fault.
In an embodiment of the present invention, the determining device 202 is specifically configured to:
traversing the level states of the PG signals of all the power supply modules;
when the PG signals sent by the power supply modules of all levels are in a low level state, the power supply module of the first level is used as the positioned power supply module with a fault;
when only the PG signal sent by the power supply module of the last stage is in a low level state, taking the power supply module of the last stage as a positioned power supply module with a fault;
when the PG signal sent by the target power supply module is in a low level state and the PG signal sent by the power supply module at the previous stage of the target power supply module is in a high level state, taking the target power supply module as a positioned power supply module with a fault; the target power supply module is any other power supply module except the power supply module of the first stage and the power supply module of the last stage.
In an embodiment of the present invention, the determining device 202 is further configured to:
after the target power supply module is used as the positioned power supply module with a fault, judging whether PG signals sent by each power supply module at the front stage of the target power supply module are all in a high level state or not and whether PG signals sent by each power supply module at the rear stage of the target power supply module are all in a second level state or not;
if not, the first prompt message is output by the display device 203.
Corresponding to the above method and apparatus embodiments, the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the fault fast-positioning method for abnormal power failure in any of the above embodiments are implemented. A computer-readable storage medium as referred to herein may include Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
It is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The principle and the implementation of the present invention are explained in the present application by using specific examples, and the above description of the embodiments is only used to help understanding the technical solution and the core idea of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A fault rapid positioning method for abnormal power failure is characterized by comprising the following steps:
when the condition that the PG signal is abnormal is detected, the PG signal of each power supply module is obtained;
positioning the power supply module with the fault according to the PG signal of each power supply module;
and displaying the information of the positioned power supply module with the fault by using a display device.
2. The method for rapidly locating the fault of the abnormal power failure according to claim 1, wherein when the PG signal abnormality is detected, acquiring the PG signal of each power supply module comprises:
detecting PG signals of each power supply module according to a preset detection period;
when the PG signal of any power supply module is detected to be low level, the condition that the PG signal is abnormal is determined, and the PG signals of all the power supply modules at the current moment are acquired.
3. The method for rapidly locating the fault of the abnormal power failure according to claim 1, wherein the locating the power supply module with the fault according to the PG signal of each power supply module comprises:
sequentially judging the level states of PG signals of all power supply modules according to the sequence from front to back of a power-on time sequence;
when the PG signal in the low level state appears for the first time, the power supply module sending the PG signal in the low level state is used as the positioned power supply module with the fault.
4. The method for rapidly locating the fault of the abnormal power failure according to claim 1, wherein the locating the power supply module with the fault according to the PG signal of each power supply module comprises:
sequentially judging the level states of PG signals of all power supply modules according to the sequence from back to front of the power-on time sequence;
when a high-level PG signal appears for the first time, a power supply module of the next stage of the power supply module which sends the high-level PG signal is used as a positioned power supply module which has a fault.
5. The method for rapidly locating the fault of the abnormal power failure according to claim 1, wherein the locating the power supply module with the fault according to the PG signal of each power supply module comprises:
traversing the level states of the PG signals of all the power supply modules;
when the PG signals sent by the power supply modules of all levels are in a low level state, the power supply module of the first level is used as the positioned power supply module with a fault;
when only the PG signal sent by the power supply module of the last stage is in a low level state, taking the power supply module of the last stage as a positioned power supply module with a fault;
when a PG signal sent by a target power supply module is in a low level state and a PG signal sent by a power supply module at the previous stage of the target power supply module is in a high level state, taking the target power supply module as a positioned power supply module with a fault; the target power supply module is any other power supply module except the power supply module of the first stage and the power supply module of the last stage.
6. The method for rapidly positioning the fault of the abnormal power failure according to claim 5, further comprising:
after the target power supply module is used as a positioned power supply module with a fault, judging whether PG signals sent by each power supply module at the front stage of the target power supply module are all in a high level state or not and whether PG signals sent by each power supply module at the rear stage of the target power supply module are all in a low level state or not;
and if not, outputting first prompt information by using the display device.
7. The utility model provides a quick locating device of trouble of unusual power failure which characterized in that includes:
the detection device is used for acquiring the PG signals of all the power supply modules when the condition that the PG signals are abnormal is detected;
the judging device is used for positioning the power supply module with the fault according to the PG signal of each power supply module;
and the display device is used for displaying the information of the positioned power supply module with the fault.
8. The apparatus for rapidly locating the fault in the abnormal power failure according to claim 7, wherein the determining means is specifically configured to:
traversing the level states of the PG signals of all the power supply modules;
when the PG signals sent by the power supply modules of all levels are in a low level state, the power supply module of the first level is used as the positioned power supply module with a fault;
when only the PG signal sent by the power supply module of the last stage is in a low level state, taking the power supply module of the last stage as a positioned power supply module with a fault;
when a PG signal sent by a target power supply module is in a low level state and a PG signal sent by a power supply module at the previous stage of the target power supply module is in a high level state, taking the target power supply module as a positioned power supply module with a fault; the target power supply module is any other power supply module except the power supply module of the first stage and the power supply module of the last stage.
9. The apparatus for rapidly locating the fault of abnormal power failure according to claim 8, wherein the determining means is further configured to:
after the target power supply module is used as a positioned power supply module with a fault, judging whether PG signals sent by each power supply module at the front stage of the target power supply module are all in a high level state or not, and whether PG signals sent by each power supply module at the rear stage of the target power supply module are all in a first level state or not;
and if not, outputting first prompt information by using the display device.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program, which when executed by a processor implements the steps of the fault fast-positioning method for abnormal power failure according to any one of claims 1 to 6.
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| CN115328290A (en) * | 2022-10-14 | 2022-11-11 | 深圳市磐鼎科技有限公司 | Power-on abnormity indication method, device, equipment and storage medium |
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