CN106371979A - Method, device and system for monitoring extension controller - Google Patents

Abstract

The invention provides a method, device and system for monitoring an extension controller. The method includes the steps of inputting heartbeat signals output by the extension controller in real time through a monitoring end, starting to count the time from the starting moment of a current judgment cycle, when it is judged that high level exists in the heartbeat signals and the time counting duration does not reach the maximum duration, starting the next judgment cycle and starting to count the time again from the starting moment of the current judgment cycle, and when it is judged that the time counting duration reaches the maximum duration and no high level exists in the heartbeat signals, controlling the extension controller to reset and inputting the heartbeat signals output by the extension controller in real time again. Whether the state of the extension controller is abnormal or not is judged in real time on the basis of the heartbeat signals, the extension controller is informed to reset to eliminate abnormity when the abnormity is detected, and therefore it is ensured that the extension controller can normally run; by means of the scheme, the stability of a storage device connected with the extension controller can be improved.

Description

A method, device and system for monitoring an extended controller

technical field

The invention relates to the technical field of computers, in particular to a method, device and system for monitoring an extended controller.

Background technique

With the rapid development of big data and cloud services, the scale of data volume is also increasing. In order to store a large amount of data, a large-scale, high-density storage device is usually required. Due to the continuous expansion of the storage device scale, it is necessary to ensure that the storage device can have high stability.

Currently, for a large-scale, high-density storage device, the storage device is usually connected to an expansion controller, but generally the expansion controller is not supervised.

However, when the extended controller runs abnormally, it usually affects the stability of the storage device, so that the stability of the storage device is low.

Contents of the invention

The invention provides a method, device and system for monitoring an extended controller, which can improve the stability of storage devices connected with the extended controller.

In order to achieve the above object, the present invention is achieved through the following technical solutions:

In the first aspect, the present invention provides a method for monitoring the extended controller, which is applied to the monitoring terminal to determine the maximum duration of the judgment period, and also includes:

S1: Input the first heartbeat signal output by the external expansion controller in real time;

S2: Start timing from the beginning of the current judgment period. When it is judged that there is a high level in the first heartbeat signal, and the timing duration does not reach the maximum duration, execute S3. When it is judged that the timing continues When the duration reaches the maximum duration and it is not determined that there is a high level in the first heartbeat signal, control the expansion controller to reset and execute S1;

S3: start the next judging period, and execute S2.

Further, the controlling the extended controller to reset includes: pulling the enable signal output to the extended controller to a low level, and when it is determined that the output duration of the low level reaches a corresponding set When the threshold is set, the enable signal is set to a high level.

Further, the determining the maximum duration of the judgment cycle includes: determining the maximum duration of the judgment cycle, and the maximum duration corresponds to at least two count numbers;

The counting from the starting moment of the current judging cycle includes: counting sequentially at equal time intervals from the starting moment of the current judging cycle, and the number to start counting is the first digit of the at least two counting numbers;

The timing duration does not reach the maximum duration, including: the current counted number is not the last digit of the at least two counted numbers;

The timing duration reaching the maximum duration includes: the currently counted number is the last digit.

In a second aspect, the present invention provides a method for monitoring an extended controller, which is applied to an extended controller, including:

S1: Generate a corresponding first heartbeat signal in real time according to its own initial heartbeat signal, and output the first heartbeat signal;

S2: Reset under the control of the external monitoring terminal, and execute S1.

Further, the generating the corresponding first heartbeat signal in real time according to its own initial heartbeat signal includes: determining its own initial heartbeat signal in real time; based on the transition edge of the initial heartbeat signal, and according to a preset delay time, Delaying the initial heartbeat signal to obtain a second heartbeat signal; performing inversion processing on the initial heartbeat signal to obtain a third heartbeat signal, wherein the initial heartbeat signal and the third heartbeat signal are at the same time The levels are opposite; the second heartbeat signal and the third heartbeat signal are AND-processed to obtain the first heartbeat signal, wherein the second heartbeat signal and the third heartbeat signal are equal at the same time When it is at a high level, the first heartbeat signal is at a high level at this moment; otherwise, the first heartbeat signal is at a low level at this moment.

In a third aspect, the present invention provides a monitoring terminal, comprising:

a determination unit, configured to determine the maximum duration of the judgment period;

The signal acquisition unit is used to input the first heartbeat signal output by the external expansion controller in real time;

The monitoring unit is configured to start timing from the start moment of the current judgment period, and when it is judged that there is a high level in the first heartbeat signal, and the timing duration does not reach the maximum duration, trigger the processing unit, When it is determined that the timing duration reaches the maximum duration, and it is not determined that there is a high level in the first heartbeat signal, control the expansion controller to reset, and trigger the signal acquisition unit;

The processing unit is configured to start a next judging cycle and trigger the monitoring unit.

Further, the monitoring unit is specifically configured to pull the enable signal output to the expansion controller to a low level, and when it is determined that the duration of the low level output reaches a corresponding set threshold, turn the The enable signal is set to a high level.

Further, the determining unit is specifically configured to determine a maximum duration of the judging period, and the maximum duration corresponds to at least two count numbers;

The monitoring unit is specifically configured to perform sequential counting at equal time intervals from the beginning of the current judging period, and the number to start counting is the first digit of the at least two counting numbers, and when the first heartbeat is judged When there is a high level in the signal, and the currently counted number is not the last digit of the at least two counted digits, the processing unit is triggered to determine that the currently counted number is the last digit, and it is not judged When there is a high level in the first heartbeat signal, control the expansion controller to reset and trigger the signal acquisition unit.

In a fourth aspect, the present invention provides an extended controller, including:

A signal processing unit, configured to generate a corresponding first heartbeat signal in real time according to its own initial heartbeat signal, and output the first heartbeat signal;

The reset unit is used for resetting under the control of an external monitoring terminal and triggering the signal processing unit.

Further, the signal processing unit is specifically configured to determine its own initial heartbeat signal in real time; based on the transition edge of the initial heartbeat signal and according to a preset delay time, delay processing the initial heartbeat signal to obtain The second heartbeat signal; performing inversion processing on the initial heartbeat signal to obtain a third heartbeat signal, wherein the levels of the initial heartbeat signal and the third heartbeat signal at the same time are opposite; performing phase AND processing on the heartbeat signal and the third heartbeat signal to obtain a first heartbeat signal, wherein, when both the second heartbeat signal and the third heartbeat signal are at a high level at the same time, the first heartbeat signal It is at a high level at this moment, otherwise, the first heartbeat signal is at a low level at this moment.

In a fifth aspect, the present invention provides a system for monitoring an extended controller, including:

Any one of the monitoring terminals mentioned above, and any one of the above-mentioned expansion controllers.

Further, the monitoring terminal is specifically used to perform sequential counting at equal time intervals according to a preset timing signal with a duty ratio of 50%, wherein the time interval is equal to one cycle of the timing signal;

The extended controller is specifically configured to delay the initial heartbeat signal according to a preset delay time to obtain a second heartbeat signal, wherein the delay time is half of a cycle of the timing signal.

The invention provides a method, device and system for monitoring an extended controller. The monitoring terminal inputs the heartbeat signal output by the extended controller in real time; starts timing from the initial moment of the current judgment cycle, and judges that there is a high voltage in the heartbeat signal. When the timing duration does not reach the maximum duration, start the next judgment cycle, and start timing from the beginning of the current judgment cycle again. When it is judged that the timing duration reaches the maximum duration and the heartbeat signal is not judged When there is a high level, the extended controller is controlled to reset, and the heartbeat signal output by the extended controller in real time is input again. Based on the heartbeat signal, it is judged in real time whether the state of the expansion controller is abnormal, and when an abnormality is detected, it is notified to reset to eliminate the abnormality, thereby ensuring that the expansion controller can operate normally, so the present invention can improve the stability of the storage device connected to the expansion controller sex.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a flow chart of a method for monitoring an extended controller provided by an embodiment of the present invention;

Fig. 2 is a flowchart of another method for monitoring an extended controller provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of generating a first heartbeat signal provided by an embodiment of the present invention;

Fig. 4 is a flowchart of another method for monitoring an extended controller provided by an embodiment of the present invention;

Fig. 5 is a schematic diagram of a monitoring terminal provided by an embodiment of the present invention;

Fig. 6 is a schematic diagram of an extended controller provided by an embodiment of the present invention;

Fig. 7 is a schematic diagram of a system for monitoring an extended controller provided by an embodiment of the present invention.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

As shown in Figure 1, the embodiment of the present invention provides a method for monitoring an extended controller, which is applied to a monitoring terminal and may include the following steps:

Step 101: Determine the maximum duration of the judgment cycle.

Step 102: Input the first heartbeat signal output by the external expansion controller in real time.

Step 103: Start timing from the beginning of the current judgment cycle, and when it is judged that there is a high level in the first heartbeat signal, and the timing duration does not reach the maximum duration, execute step 104, and when it is judged that When the timing duration reaches the maximum duration and it is not determined that there is a high level in the first heartbeat signal, the extended controller is controlled to reset, and step 102 is executed.

Step 104: start the next judging period, and execute step 103.

The embodiment of the present invention provides a method for monitoring the extended controller. The monitoring terminal inputs the heartbeat signal output by the extended controller in real time; starts timing from the initial moment of the current judgment period, and when it is judged that there is a high level in the heartbeat signal and When the timing duration does not reach the maximum duration, start the next judgment cycle, and start timing from the beginning of the current judgment cycle again. When it is judged that the timing duration reaches the maximum duration and it is not judged that there is a high in the heartbeat signal level, control the extended controller to reset, and execute again the heartbeat signal output by the extended controller in real time. Based on the heartbeat signal, it is judged in real time whether the state of the expansion controller is abnormal, and when an abnormality is detected, it is notified to reset to eliminate the abnormality, thereby ensuring that the expansion controller can operate normally, so the embodiment of the present invention can improve the storage device connected to the expansion controller. stability.

In an embodiment of the present invention, the extended controller may be a PMC8054SAS (Serial Attached SCSI, serial SCSI) extended controller, and correspondingly, the monitoring terminal may be a Watchdog module. The first heartbeat signal output by the PMC8054 SAS expansion controller in real time can be used as a dog feed signal to be input to the Watchdog module in real time, so that the Watchdog module can monitor whether there is any abnormality in the working status of the PMC8054 SAS expansion controller in real time according to the dog feed signal.

In detail, the staff can set the maximum duration of the judgment cycle according to their own needs or experience. For example, the maximum duration may preferably be 10s, that is, the monitoring end needs to monitor whether there is a high level in the first heartbeat signal within a period of 10s.

Based on the above content, if the monitoring terminal detects that there is a high level in the first heartbeat signal, and the time when the high level is detected is within the time limit of 10s, it can be explained that the expansion controller is currently working normally. At the same time, once the monitoring terminal detects the presence of a high level, it can immediately perform the next monitoring. Correspondingly, if the monitoring terminal has not detected a high level in the first heartbeat signal before reaching the 10s time limit, it can indicate that the expansion controller is currently working abnormally, so it can immediately control the expansion controller to perform Reset to remove exception.

In an embodiment of the present invention, in order to illustrate a possible implementation of controlling the extended controller to reset, the controlling the extended controller to reset includes: outputting an enable signal to the extended controller pull it to a low level, and when it is determined that the output duration of the low level reaches a corresponding set threshold, set the enabling signal to a high level.

In detail, the enable signal output to the extended controller may be a reset signal. When the reset signal is at a low level, the extended controller stops working, and when the reset signal is at a high level, the extended controller works normally. After the expansion controller undergoes a transition from stop working to normal work again, a reset of the expansion controller is realized.

In detail, the enable signal output to the extended controller may be output by an external device, such as an external power supply. Of course, in an embodiment of the present invention, this enabling signal can also be output by the monitor.

In detail, when the monitoring terminal pulls the enabling signal to a low level, it usually needs to last for a certain period of time, for example, this duration may preferably be 100ms. After the monitoring terminal pulls the enable signal low for 100ms, it can pull the enable signal high again to make the expansion controller work again. Of course, in an embodiment of the present invention, after the monitoring terminal keeps the enable signal low for 100 ms, the enable signal can also automatically recover to a high level.

In detail, since the expansion controller stops working when the enable signal is at a low level, the first heartbeat signal is not output during this period. When the enable signal returns from low level to high level, the extended controller restarts to work normally, so it continues to output the first heartbeat signal in real time. Correspondingly, after the monitoring terminal controls the extended controller to reset, it needs to input the first heartbeat signal again in real time.

In an embodiment of the present invention, in order to illustrate a possible timing implementation, the determining the maximum duration of the judgment cycle includes: determining the maximum duration of the judgment cycle, and the maximum duration corresponds to at least two counting figures;

The counting from the starting moment of the current judging cycle includes: counting sequentially at equal time intervals from the starting moment of the current judging cycle, and the number to start counting is the first digit of the at least two counting numbers;

The timing duration does not reach the maximum duration, including: the current counted number is not the last digit of the at least two counted numbers;

The timing duration reaching the maximum duration includes: the currently counted number is the last digit.

For example, assume that the maximum duration of the judgment period is 10s, and 100 times can be counted sequentially at equal time intervals within 10s. Therefore, 10s can correspond to 100 counting numbers, such as 0 to 99 in positive sequence, where the first number is 0 and the last number is 99. Of course, it may also be 99-0 in reverse order.

In detail, when the monitoring terminal executes any judgment cycle, it starts counting at equal time intervals from the beginning of the judgment cycle, for example, it can count 0, 1, 2, 3, 4, ..., 99 in sequence. Wherein, this counting operation can be completed by a counter set inside the monitoring terminal.

Based on the above content, in the current judgment period, when the monitoring terminal first detects that there is a high level in the first heartbeat signal, and the counting number of the counter at this time is not 99, if it is 30, it can indicate that the expansion controller is working normally, so It is possible to end the current judgment cycle and start the next judgment cycle. Of course, when entering the next judging cycle, the current counting number of the counter is cleared.

Correspondingly, when the counter starts counting from 0 and counts to 99, if the monitoring terminal has not detected the high level in the first heartbeat signal during this period, it can indicate that the expansion controller is working abnormally, so the expansion controller can be controlled Do a reset.

As shown in Figure 2, the embodiment of the present invention provides another method for monitoring an extended controller, which is applied to an extended controller and may include the following steps:

Step 201: Generate a corresponding first heartbeat signal in real time according to its own initial heartbeat signal, and output the first heartbeat signal;

Step 202: Reset under the control of the external monitoring terminal, and execute step 201.

In one embodiment of the present invention, the extended controller may be a PMC8054SAS extended controller, and correspondingly, the monitoring terminal may be a Watchdog module. The first heartbeat signal output by the PMC8054SAS expansion controller in real time can be used as a dog feed signal to be input to the Watchdog module in real time, so that the Watchdog module can monitor whether there is any abnormality in the working status of the PMC8054SAS expansion controller in real time according to the dog feed signal.

In detail, when the extended controller is working normally, it can output a heartbeat signal with a fixed frequency, such as 0.5 Hz, in real time, that is, the above-mentioned initial heartbeat signal, which is similar to the regular beating of a human heart. Correspondingly, when the extended controller works abnormally, the heartbeat signal output by it in real time may be always at high level or always at low level.

Since the monitoring terminal needs to indirectly determine the working status of the expansion controller according to whether there is a high level in the heartbeat signal, when the expansion controller is abnormally working and outputs a heartbeat signal that is always high, the monitoring terminal will, based on the heartbeat signal, It is often not possible to accurately determine the operating status of the expansion controller. Therefore, the initial heartbeat signal can be processed, and the processed first heartbeat signal can be output to the monitoring terminal.

Therefore, in an embodiment of the present invention, in order to illustrate a possible implementation of generating a corresponding first heartbeat signal based on an initial heartbeat signal, the real-time generator generates a corresponding first heartbeat signal according to its own initial heartbeat signal , comprising: determining its own initial heartbeat signal in real time; based on the transition edge of the initial heartbeat signal and according to a preset delay time, delaying the initial heartbeat signal to obtain a second heartbeat signal; Inverting the heartbeat signal to obtain a third heartbeat signal, wherein the levels of the initial heartbeat signal and the third heartbeat signal at the same moment are opposite; the second heartbeat signal and the third heartbeat signal Perform phase AND processing to obtain a first heartbeat signal, wherein, when the second heartbeat signal and the third heartbeat signal are both high at the same moment, the first heartbeat signal is at a high level at this moment, otherwise , the first heartbeat signal is at a low level at this moment.

In detail, the transition edge may include: a falling edge from a high level to a low level, or a rising edge from a low level to a high level.

In detail, reference may be made to FIG. 3 for a possible implementation manner of generating a corresponding first heartbeat signal according to the initial heartbeat signal.

In FIG. 3, the above-mentioned delay time can be taken from the Clock (timer) signal, for example, the delay time in FIG. 3 is equal to half of one cycle of the Clock signal. In detail, the duty cycle of the Clock signal is 50%. In detail, based on the Clock signal, counting can be performed from left to right according to time sequence, such as 1, 2, . . . , 10 as shown in FIG. 3 . The heartbeat (heartbeat) signal may be the aforementioned initial heartbeat signal. The heartbeat_delay (heartbeat delay) signal may be the above-mentioned second heartbeat signal. The heartbeat_n signal may be the above-mentioned third heartbeat signal. The plus (summation) signal may be the above-mentioned first heartbeat signal.

As shown in Figure 3, the heartbeat_delay signal can be obtained by delaying the heartbeat signal, where the delay time is half of a cycle of the Clock signal. Invert the heartbeat signal to get the heartbeat_n signal. Phase and process the heartbeat_delay signal and heartbeat_n signal to get the plus signal. The plus signal can be output to the monitoring terminal in real time. Theoretically, the width of each high level of the plus signal should be half of a cycle of the Clock signal.

Specifically, the monitoring terminal can perform sequential counting at equal time intervals according to the Clock signal, and this time interval is equal to one period of the Clock signal. The extension controller performs delay processing based on a delay time equal to half of one cycle of the Clock signal. As shown in FIG. 3 , when the monitoring terminal counts from number 1 to number 3, the first heartbeat signal can be detected, that is, there is a high level in the plus signal in FIG. 3 . Assuming that 100 times can be counted within the maximum duration, it means that the maximum duration has not been reached when counting to number 3, so the current count number can be cleared, the current judgment cycle ends and the next judgment cycle starts.

As shown in Figure 4, an embodiment of the present invention provides another method for monitoring an extended controller, which specifically includes the following steps:

Step 401: The monitoring terminal predetermines the maximum duration of the judging period, and the maximum duration corresponds to 100 count numbers.

For example, the maximum duration can be 10s, and the monitoring terminal can count 100 times within 10s, such as counting up from 0 to 99, or counting down from 99 to 0.

Step 402: The extended controller predetermines a Clock signal with a duty cycle of 50%.

Step 403: The extended controller determines its own heartbeat signal in real time.

In detail, the heartbeat signal is an initial heartbeat signal of the extended controller.

Step 404 : Based on the transition edge of the heartbeat signal, the extension controller delays the heartbeat signal with half a period of the Clock signal as the delay time to obtain the heartbeat_delay signal.

In detail, the transition edge may be a falling edge from a high level to a low level, or a rising edge from a low level to a high level.

Step 405: The extended controller inverts the heartbeat signal to obtain a heartbeat_n signal.

In detail, the levels of the heartbeat signal and the heartbeat_n signal are opposite at the same time.

Step 406: The expansion controller performs phase-AND processing on the heartbeat_delay signal and the heartbeat_n signal to obtain a plus signal, and outputs the plus signal to the monitoring terminal in real time.

In detail, when both the heartbeat_delay signal and the heartbeat_n signal are at high level at the same moment, the plus signal is at a high level at that moment; otherwise, the plus signal is at a low level at this moment.

Specifically, the extension controller can transmit the plus signal generated based on the heartbeat signal to the monitoring terminal in real time, so that the monitoring terminal can indirectly judge whether the working state of the extension controller is abnormal according to the plus signal.

Step 407: The monitoring terminal inputs the plus signal output by the expansion controller in real time.

Step 408: The monitoring terminal starts counting sequentially at equal time intervals from the beginning of the current judgment period, and the number to start counting is the first digit of the 100 counting digits. When it is judged that there is a high level in the plus signal and the current counting When the number is not the last digit of the 100 counting numbers, execute step 409, and when it is judged that the currently counted digit is the last digit and it is not judged that there is a high level in the plus signal, execute step 410.

In detail, the monitoring terminal can also predetermine the aforementioned Clock signal with a duty ratio of 50%, and perform sequential counting at equal time intervals based on the Clock signal. Wherein, the time interval may be equal to one cycle of the Clock signal.

Step 409: The monitoring terminal starts the next judgment period, and executes step 408.

In detail, when the monitoring terminal determines that there is a high level in the plus signal before reaching the maximum duration, it can determine that the expansion controller is currently working normally, so the next judgment can be made based on the plus signal output by the expansion controller in real time.

Step 410: The monitoring terminal pulls the enable signal output to the extended controller to a low level, and when it is determined that the duration of the low level output reaches the corresponding set threshold, sets the enable signal to a high level, and Execute step 407.

In detail, the monitoring end controls the extended controller to reset by controlling the level of the enable signal.

In detail, when the enable signal is at low level, the expansion controller usually cannot work normally, so it cannot output the plus signal to the monitoring terminal in real time. When the enable signal returns from low level to high level, the expansion controller can continue to work normally, so it can continue to output the plus signal to the monitoring terminal in real time. Therefore, after the monitoring terminal controls the extended controller to reset, it needs to input the plus signal output by the extended controller in real time again.

Step 411: The expansion controller executes step 403 when it is determined that the enable signal returns from a low level to a high level.

As mentioned above, when the enable signal is restored from low level to high level, the expansion controller continues to work normally, so it is necessary to determine its own heartbeat signal again in real time, and perform subsequent generation of plus signals based on the heartbeat signal.

As shown in Figure 5, an embodiment of the present invention provides a monitoring terminal, including:

A determination unit 501, configured to determine the maximum duration of the judgment cycle;

A signal acquisition unit 502, configured to input the first heartbeat signal output by the external expansion controller in real time;

The monitoring unit 503 is configured to start timing from the start moment of the current judgment period, and trigger the processing unit 504 when it is judged that there is a high level in the first heartbeat signal, and the timing duration does not reach the maximum duration , when it is determined that the timing duration reaches the maximum duration, and it is not determined that there is a high level in the first heartbeat signal, controlling the expansion controller to reset, and triggering the signal acquisition unit 502;

The processing unit 504 is configured to start a next judging cycle and trigger the monitoring unit 503 .

In one embodiment of the present invention, the monitoring unit 503 is specifically configured to pull the enable signal output to the extended controller to a low level, and when it is determined that the output duration of the low level reaches a corresponding When setting the threshold, set the enabling signal to high level.

In an embodiment of the present invention, the determining unit 501 is specifically configured to determine a maximum duration of the judgment period, and the maximum duration corresponds to at least two count numbers;

The monitoring unit 503 is specifically configured to perform sequential counting at equal time intervals from the beginning of the current judging period, and the number to start counting is the first digit of the at least two counting digits. When there is a high level in the heartbeat signal, and the currently counted number is not the last digit of the at least two counted digits, the processing unit is triggered to determine that the currently counted number is the last digit, and it is not judged When a high level exists in the first heartbeat signal, control the expansion controller to reset and trigger the signal acquisition unit.

As shown in Figure 6, an embodiment of the present invention provides an extended controller, including:

The signal processing unit 601 is configured to generate a corresponding first heartbeat signal in real time according to its own initial heartbeat signal, and output the first heartbeat signal;

The reset unit 602 is configured to reset under the control of an external monitoring terminal and trigger the signal processing unit 601 .

In an embodiment of the present invention, the signal processing unit 601 is specifically configured to determine its own initial heartbeat signal in real time; The signal is delayed to obtain a second heartbeat signal; the initial heartbeat signal is reversed to obtain a third heartbeat signal, wherein the levels of the initial heartbeat signal and the third heartbeat signal are opposite at the same time ; performing AND processing on the second heartbeat signal and the third heartbeat signal to obtain a first heartbeat signal, wherein, when both the second heartbeat signal and the third heartbeat signal are at a high level at the same moment, The first heartbeat signal is at a high level at this moment, otherwise, the first heartbeat signal is at a low level at this moment.

As shown in Figure 7, an embodiment of the present invention provides a system for monitoring an extended controller, including:

The monitoring terminal 701 described above, and the extended controller 702 described above.

In detail, the expansion controller can be connected to the storage device. Among them, the storage device can mount multiple HDDs (HardDisk Drive, hard disk drive), which is a high-density, high-stability and redundant storage system. When the extended controller works abnormally, it will affect the stability of the storage device. Based on the heartbeat signal of the extended controller, the monitoring terminal can judge whether the extended controller is working abnormally, and when it is judged that the extended controller is working abnormally, it can control the extended controller to reset to eliminate the abnormality, thereby indirectly ensuring the stability and stability of the storage device. Reliability, to avoid problems such as storage device downtime caused by abnormalities in the extended controller.

In one embodiment of the present invention, the monitoring terminal 701 is specifically used to perform sequential counting at equal time intervals according to a preset timing signal with a duty ratio of 50%, wherein the time interval and the timing signal one cycle is equal;

The expansion controller 702 is specifically configured to delay the initial heartbeat signal according to a preset delay time to obtain a second heartbeat signal, wherein the delay time is half of a cycle of the timing signal.

In detail, please refer to FIG. 3 , the duty cycle of the Clock signal is 50%, and the monitoring terminal can perform sequential counting at equal time intervals according to the Clock signal, and this time interval is equal to one cycle of the Clock signal. In FIG. 3 , the extension controller performs delay processing based on a delay time equal to half of one cycle of the Clock signal. As shown in FIG. 3 , when the monitoring terminal counts from number 1 to number 3, the first heartbeat signal can be detected, that is, there is a high level in the plus signal in FIG. 3 . Assuming that 100 times can be counted within the maximum duration, it means that the maximum duration has not been reached when counting to number 3, so the current count number can be cleared, the current judgment cycle ends and the next judgment cycle starts.

The information exchange and execution process among the units in the above-mentioned device are based on the same concept as the method embodiment of the present invention, and the specific content can refer to the description in the method embodiment of the present invention, and will not be repeated here.

In summary, each embodiment of the present invention has at least the following beneficial effects:

1. In the embodiment of the present invention, the monitoring terminal inputs the heartbeat signal output by the extended controller in real time; starts timing from the beginning of the current judgment cycle, and when it is judged that there is a high level in the heartbeat signal and the timing duration does not reach the maximum duration When the duration is long, start the next judgment cycle, and start timing from the beginning of the current judgment cycle again. When it is judged that the timing duration reaches the maximum duration and it is not judged that there is a high level in the heartbeat signal, the extended controller is controlled. Perform a reset, and execute again to input the heartbeat signal output by the expansion controller in real time. Based on the heartbeat signal, it is judged in real time whether the state of the expansion controller is abnormal, and when an abnormality is detected, it is notified to reset to eliminate the abnormality, thereby ensuring that the expansion controller can operate normally, so the embodiment of the present invention can improve the storage device connected to the expansion controller. stability.

2. In the embodiment of the present invention, the expansion controller may be connected to the storage device. Among them, the storage device can mount multiple HDDs, which is a high-density, highly stable and redundant storage system. When the extended controller works abnormally, it will affect the stability of the storage device. Based on the heartbeat signal of the extended controller, the monitoring terminal can judge whether the extended controller is working abnormally, and when it is judged that the extended controller is working abnormally, it can control the extended controller to reset to eliminate the abnormality, thereby indirectly ensuring the stability and stability of the storage device. Reliability, to avoid problems such as storage device downtime caused by abnormalities in the extended controller.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or sequence. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional same elements in the process, method, article or apparatus comprising said element.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by program instructions related hardware, and the aforementioned programs can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. A method for monitoring the extended controller, characterized in that, it is applied to the monitoring terminal to determine the maximum duration of the judgment period, and also includes: S1: Input the first heartbeat signal output by the external expansion controller in real time; S2: Start timing from the beginning of the current judgment period. When it is judged that there is a high level in the first heartbeat signal, and the timing duration does not reach the maximum duration, execute S3. When it is judged that the timing continues When the duration reaches the maximum duration and it is not determined that there is a high level in the first heartbeat signal, control the expansion controller to reset and execute S1; S3: start the next judging period, and execute S2. 2. The method of claim 1, wherein, The controlling the extended controller to reset includes: pulling the enable signal output to the extended controller to a low level, and when it is determined that the duration of the low level output reaches a corresponding set threshold , setting the enable signal to a high level; and / or, The determining the maximum duration of the judgment cycle includes: determining the maximum duration of the judgment cycle, and the maximum duration corresponds to at least two count numbers; The counting from the starting moment of the current judging cycle includes: counting sequentially at equal time intervals from the starting moment of the current judging cycle, and the number to start counting is the first digit of the at least two counting numbers; The timing duration does not reach the maximum duration, including: the current counted number is not the last digit of the at least two counted numbers; The timing duration reaching the maximum duration includes: the currently counted number is the last digit. 3. A method for monitoring an extended controller, characterized in that it is applied to an extended controller, comprising: S1: Generate a corresponding first heartbeat signal in real time according to its own initial heartbeat signal, and output the first heartbeat signal; S2: Reset under the control of the external monitoring terminal, and execute S1. 4. The method of claim 3, wherein, The real-time generation of the corresponding first heartbeat signal according to its own initial heartbeat signal includes: determining its own initial heartbeat signal in real time; The initial heartbeat signal is delayed to obtain a second heartbeat signal; the initial heartbeat signal is reversed to obtain a third heartbeat signal, wherein the levels of the initial heartbeat signal and the third heartbeat signal at the same time High and low are reversed; the second heartbeat signal and the third heartbeat signal are phased and processed to obtain the first heartbeat signal, wherein both the second heartbeat signal and the third heartbeat signal are high at the same time Normally, the first heartbeat signal is at a high level at this moment, otherwise, the first heartbeat signal is at a low level at this moment. 5. A monitoring terminal, characterized in that, comprising: a determination unit, configured to determine the maximum duration of the judgment period; The signal acquisition unit is used to input the first heartbeat signal output by the external expansion controller in real time; The monitoring unit is configured to start timing from the start moment of the current judgment period, and when it is judged that there is a high level in the first heartbeat signal, and the timing duration does not reach the maximum duration, trigger the processing unit, When it is determined that the timing duration reaches the maximum duration, and it is not determined that there is a high level in the first heartbeat signal, control the expansion controller to reset, and trigger the signal acquisition unit; The processing unit is configured to start a next judging cycle and trigger the monitoring unit. 6. The monitoring terminal according to claim 5, characterized in that, The monitoring unit is specifically configured to pull the enable signal output to the expansion controller to a low level, and when it is determined that the duration of the low level output reaches a corresponding set threshold, turn the enable signal to a low level. The enable signal is set to high level; and / or, The determining unit is specifically configured to determine a maximum duration of the judgment cycle, and the maximum duration corresponds to at least two count numbers; The monitoring unit is specifically configured to perform sequential counting at equal time intervals from the beginning of the current judging period, and the number to start counting is the first digit of the at least two counting numbers, and when the first heartbeat is judged When there is a high level in the signal, and the currently counted number is not the last digit of the at least two counted digits, the processing unit is triggered to determine that the currently counted number is the last digit, and it is not judged When there is a high level in the first heartbeat signal, control the expansion controller to reset and trigger the signal acquisition unit. 7. An extended controller, characterized in that, comprising: A signal processing unit, configured to generate a corresponding first heartbeat signal in real time according to its own initial heartbeat signal, and output the first heartbeat signal; The reset unit is used for resetting under the control of an external monitoring terminal and triggering the signal processing unit. 8. The expansion controller according to claim 7, characterized in that, The signal processing unit is specifically configured to determine its own initial heartbeat signal in real time; based on the transition edge of the initial heartbeat signal and according to a preset delay time, delay processing the initial heartbeat signal to obtain a second heartbeat signal; the initial heartbeat signal is reversed to obtain a third heartbeat signal, wherein the levels of the initial heartbeat signal and the third heartbeat signal are opposite at the same time; the second heartbeat signal and Phase-AND processing is performed on the third heartbeat signal to obtain a first heartbeat signal, wherein, when both the second heartbeat signal and the third heartbeat signal are at a high level at the same moment, the first heartbeat signal is is at a high level, otherwise, the first heartbeat signal is at a low level at this moment. 9. A system for monitoring extended controllers, comprising: The monitoring terminal as claimed in claim 5 or 6, and the extended controller as claimed in claim 7 or 8. 10. The system for monitoring the expansion controller according to claim 9, characterized in that, The monitoring terminal is specifically used to perform sequential counting at equal time intervals according to a preset timing signal with a duty ratio of 50%, wherein the time interval is equal to one cycle of the timing signal; The extended controller is specifically configured to delay the initial heartbeat signal according to a preset delay time to obtain a second heartbeat signal, wherein the delay time is half of a cycle of the timing signal.