CN117148918A - Method, device, equipment and medium for calibrating server time - Google Patents

Abstract

The application discloses a method, a device, equipment and a medium for calibrating server time, which relate to the technical field of servers and comprise the following steps: when the server is in a first state which is electrified and not started currently, controlling the BMC to read the current time of a first real-time clock in the server, and setting the current time of the first real-time clock as the current core time of the BMC; an energy storage device for supplying power to the first real-time clock is arranged at the non-main board position of the server; when the server is in a second state in which the server is started, acquiring the current time of a second real-time clock on a server main board, and when the current time of the second real-time clock is inconsistent with the current core time of the BMC, performing calibration update on the current core time of the BMC based on the current time of the second real-time clock; and sending the updated current core time of the BMC to the first real-time clock, and updating the current time of the first real-time clock. And synchronizing time information of the whole system, so that the system time of the whole server is kept up to date and accurate.

Description

A server time calibration method, device, equipment and medium

Technical field

The present invention relates to the field of server technology, and in particular to a server time calibration method, device, equipment and medium.

Background technique

In the current widely used technical environment, servers are usually equipped with only a real-time clock (RTC) device, whose main function is to provide services for the BIOS (Basic Input/Output System). For servers that are not connected to the Internet, when no NTP (Network Time Protocol) service is available, the BMC (Baseboard Management Controller) will only rely on time synchronization with the BIOS to obtain the current time. This synchronization process is only performed during each operating system startup. Since there is no external time calibration of the NTP service, it can only rely on the internal RTC device, which may make the server time not always exactly consistent with the actual time. When the server is not powered on, although the motherboard power supply has provided the BMC with the startup capability, the BMC cannot obtain any valid time information from the hardware because the BIOS has not yet been initialized and interacted with the BMC. Therefore, during this period, the time displayed on the BMC is not the real system time, but is only an initial setting value and has no actual reference significance.

In summary, for servers that are not connected to the Internet, how to ensure that the time of the internal BMC and other parts of the server is consistent and accurate when the server is in different states is a technical problem to be solved in this field.

Contents of the invention

In view of this, the purpose of the present invention is to provide a server time calibration method, device, equipment and medium, which can realize the time of the internal BMC and other parts of the server when the server is in different states for a server that is not connected to the Internet. Consistent and accurate. The specific plan is as follows:

In the first aspect, this application discloses a server time calibration method, including:

When it is detected that the server is currently in the first state of being powered on and not started, the baseboard management controller reads the current time of the first real-time clock preconfigured in the server, and sets the current time of the first real-time clock to The time is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state; the non-mainboard in the server An energy storage device is provided at the position to power the first real-time clock;

When it is detected that the server is in the second state of starting, the current time of the second real-time clock on the server motherboard is obtained, and the current time of the second real-time clock is compared with the current core time of the baseboard management controller. When inconsistent, calibrating the current core time of the baseboard management controller based on the current time of the second real-time clock to update the current core time of the baseboard management controller;

The current core time of the baseboard management controller is sent to the first real-time clock, so that the current time of the first real-time clock is updated with the current core time of the baseboard management controller.

Optionally, when it is detected that the server is in the second state of starting, the current time of the second real-time clock on the server mainboard is obtained, and the current time of the second real-time clock is compared with the baseboard management When the current core time of the controller is inconsistent, calibrate the current core time of the baseboard management controller based on the current time of the second real-time clock to update the current core time of the baseboard management controller, including:

After the server is powered on, detect whether the server is in the second state of starting;

If it is detected that the server is in the second state of starting, then control the basic input and output system to perform a startup initialization operation;

After the startup initialization of the basic input and output system is completed, the basic input and output system is controlled to obtain the current time of the second real-time clock from the second real-time clock on the server motherboard, and use the basic input and output system to obtain the current time of the second real-time clock. Synchronizing a system event log containing the current time of the second real-time clock to the baseboard management controller through a system event log command;

Parse the system event log through the baseboard management controller to obtain the current time of the second real-time clock;

Detect whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller;

If the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller, use the current time of the second real-time clock to calibrate the current core time of the baseboard management controller to update The current core time of the baseboard management controller.

Optionally, after detecting whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller, the method further includes:

If the current time of the second real-time clock is consistent with the current core time of the baseboard management controller, then choose not to calibrate the current core time of the baseboard management controller to maintain the current core time of the baseboard management controller. Kernel time remains unchanged.

Optionally, the current core time of the baseboard management controller is sent to the first real-time clock, so as to update the current time of the first real-time clock using the current core time of the baseboard management controller. ,include:

Detect whether the server is currently in a third state of being powered on;

If it is detected that the server is currently in a third state of being powered on, the baseboard management controller is controlled to send the current core time of the baseboard management controller to the first real-time clock, so that the first real-time clock The current time of the first real-time clock is updated using the current kernel time.

Optionally, the control baseboard management controller reads the current time of the first real-time clock preconfigured in the server, including:

Control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server through the integrated circuit bus interface;

Correspondingly, controlling the baseboard management controller to send the current core time of the baseboard management controller to the first real-time clock includes:

Control the baseboard management controller and write the current core time of the baseboard management controller into the first real-time clock through the integrated circuit bus interface.

Optionally, the server time calibration method also includes:

Set time synchronization tasks;

The time synchronization task is triggered regularly to prioritize synchronization updates based on the time of the second real-time clock, the time of the basic input and output system, the time of the baseboard management controller, and the time of the first real-time clock. Time synchronization update operations are performed sequentially.

Optionally, in the server time calibration method, the first real-time clock and the energy storage device are arranged on a target circuit board independent of the server mainboard.

In a second aspect, this application discloses a server time calibration device, including:

A first time acquisition module, configured to, when detecting that the server is currently in a first state of being powered on and not started, control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server, and The current time of the first real-time clock is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state. ; An energy storage device that supplies power to the first real-time clock is provided at a non-mainboard position in the server;

A time calibration module, configured to obtain the current time of the second real-time clock on the server motherboard when it is detected that the server is in the second state of starting, and compare the current time of the second real-time clock with the baseboard management When the current core time of the controller is inconsistent, calibrate the current core time of the baseboard management controller based on the current time of the second real-time clock to update the current core time of the baseboard management controller;

A first time update module configured to send the current core time of the baseboard management controller to the first real-time clock, so as to use the current core time of the baseboard management controller to update the current time of the first real-time clock. Make an update.

In a third aspect, this application discloses an electronic device, including:

Memory, used to hold computer programs;

A processor, configured to execute the computer program to implement the steps of the previously disclosed server time calibration method.

In a fourth aspect, the present application discloses a computer-readable storage medium for storing a computer program; wherein when the computer program is executed by a processor, the steps of the previously disclosed server time calibration method are implemented.

It can be seen that the present application discloses a server time calibration method, which includes: when detecting that the server is currently in a first state of being powered on and not started, controlling the baseboard management controller to read the preconfigured first time in the server. The current time of a real-time clock, and the current time of the first real-time clock is set to the current kernel time of the baseboard management controller, so that the log system of the server is based on the baseboard management in the first state The current core time of the controller is logged; an energy storage device that powers the first real-time clock is provided at a non-mainboard position in the server; when it is detected that the server is in the second state of being started, the The current time of the second real-time clock on the server motherboard, and when the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller, based on the current time of the second real-time clock, the Calibrating the current core time of the baseboard management controller to update the current core time of the baseboard management controller; sending the current core time of the baseboard management controller to the first real-time clock to utilize the baseboard management controller The current core time of the controller updates the current time of the first real-time clock. It can be seen that when the server is currently in the first state of power-on but not started, the BMC cannot interact with the BIOS. Correspondingly, it cannot obtain valid time information from the hardware. Therefore, when it is in the first state, it directly controls BMC obtains time information from the first real-time clock configured separately on the server as the current time. In this way, even if the server has not been powered on, BMC can obtain valid time information as the current kernel time instead of the initial setting value. Then when the server is in the second state of starting, the BMC can obtain the current time of the second real-time clock on the motherboard, and then compare the current time of the second real-time clock with the current kernel time of the BMC. If they are inconsistent, the The current time of the second real-time clock is used to calibrate the current core time of the BMC, that is, the current time of the second real-time clock is used to update the current core time of the BMC. In this way, the current time of the second real-time clock is used to calibrate the BMC's current core time. The current core time is calibrated and updated to ensure that the BMC's current core time can carry the latest and most accurate system time. Finally, the calibrated BMC's current core time is sent to the first real-time clock again, and the current time of the first real-time clock is updated to confirm that the time information of the first real-time clock and the second real-time clock are consistent, further ensuring that the entire system Time information is synchronized to keep the time in the entire server system up-to-date and accurate.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without exerting creative efforts.

Figure 1 is a flow chart of a server time calibration method disclosed in this application;

Figure 2 is a flow chart of a specific server time calibration method disclosed in this application;

Figure 3 is a flow chart of another specific server time calibration method disclosed in this application;

Figure 4 is a time information data flow diagram of a server system time synchronization process disclosed in this application;

Figure 5 is a flow chart of the BMC offline self-calibration kernel time method of a server motherboard management board dual RTC design disclosed in this application;

Figure 6 is a structural diagram of a server time calibration device disclosed in this application;

Figure 7 is a structural diagram of an electronic device disclosed in this application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

In the current widely used technical environment, servers are usually equipped with only a real-time clock RTC device, whose main function is to provide services for the BIOS. For servers not connected to the Internet, when no NTP service is available, BMC will only rely on time synchronization with the BIOS to obtain the current time. This synchronization process is only performed during each operating system startup. Since there is no external time calibration of the NTP service, it can only rely on the internal RTC device, which may make the server time not always exactly consistent with the actual time. When the server is not powered on, although the motherboard power supply has provided the BMC with the startup capability, the BMC cannot obtain any valid time information from the hardware because the BIOS has not yet been initialized and interacted with the BMC. Therefore, during this period, the time displayed on the BMC is not the real system time, but is only an initial setting value and has no actual reference significance.

To this end, this application provides a server time calibration solution that can achieve consistent and accurate time for the internal BMC and other parts of the server when the server is in different states for servers that are not connected to the Internet.

Referring to Figure 1, an embodiment of the present invention discloses a server time calibration method, which includes:

Step S11: When it is detected that the server is currently in the first state of being powered on and not started, control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server, and set the first real-time clock to The current time of the clock is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state; in the server An energy storage device that supplies power to the first real-time clock is disposed at a non-mainboard position.

In this embodiment, when the server starts to be powered on, the baseboard management controller BMC starts to start. At this time, there is no need to consider whether the server has been started, it only needs to be powered on. Therefore, when the server is in the first state of being powered on but not started, since the baseboard management controller BMC has been started, the server controls the baseboard management controller BMC to read the first real-time clock RTC1 preconfigured in the server. The current time T1 is set to the current time T1 of the first real-time clock RTC1 as the current core time of the baseboard management controller BMC. In this way, when the core time of the baseboard management controller is the accurate current time T1, Only when a valid timestamp exists can the log system in the server successfully and accurately record the corresponding times of various operations and events that occur during the operation of the system. The operations and events may include but are not limited to: System Startup, system shutdown, system failure, system warning, etc. Administrators can examine these event logs to help identify and resolve problems.

In the existing technology, when the server is in the first state of being powered on and not started, although the motherboard power supply has provided the BMC with the startup capability, the BMC at this time has not yet been initialized and information exchanged with the BMC. Unable to obtain any valid time information from the hardware. Therefore, during this period, the time displayed on the BMC is not the real system time, but an initial setting value. In this way, if there is a problem with the server, development and operation and maintenance personnel will usually track the source of the problem by looking at the logs. However, since the BMC time in the existing technology is only an initial setting value, rather than the real current kernel time, if the time information in the log is inaccurate, the management may not be able to determine the specific time when the problem occurred, which will be detrimental to Difficulties arise in locating and resolving problems. In the present invention, the current time T1 is obtained from the first real-time clock RTC1 as the current core time of the BMC. This ensures that the current kernel time is the real system time, rather than a set value, which greatly improves the time accuracy of the log system's logging.

It should be noted that the first real-time clock and the energy storage device are both disposed on a target circuit board independent of the server motherboard. It can be understood that the first real-time clock RTC1 and the power supply battery that powers the first real-time clock RTC1 need to be set on the DC-SCM. Hereinafter, the DC-SCM is called the management board. In this way, the first real-time clock RTC1 has an independent The power supply battery can rely on its own power supply battery to provide power to the first real-time clock RTC when the server is not started. By setting the first real-time clock RTC1 and the power supply battery that powers it on the management board, it is related to the server motherboard. This design of separating the second real-time clock RTC2 allows the management board to obtain a server power-off timing capability independent of the motherboard CMOS. When the server is powered off and then powered on again, BMC can still perform accurate time tracking and management due to its independent RTC module on the management board, which enhances the overall operating efficiency and stability of the server.

BMC independently obtains time information directly through the RTC1 of the management board without relying on the operating system or BIOS. This approach enhances the BMC's autonomy and reduces its dependence on other system components. If there is a problem with the operating system or BIOS, such as downtime or crash, BMC can still obtain the time through RTC1, which provides it with a more accurate and reliable time source, helping to improve the accuracy of its task execution.

Step S12: When it is detected that the server is in the second starting state, obtain the current time of the second real-time clock on the server motherboard, and compare the current time of the second real-time clock with the baseboard management controller's When the current core time is inconsistent, the current core time of the baseboard management controller is calibrated based on the current time of the second real-time clock to update the current core time of the baseboard management controller.

In this embodiment, after the server is powered on, it is detected whether the server is in the second state of starting; if it is detected that the server is in the second state of starting, the basic input and output system is controlled to perform a startup initialization operation. ; When the startup initialization of the basic input and output system is completed, control the basic input and output system to obtain the current time of the second real-time clock from the second real-time clock on the server motherboard, and pass the basic input and output system Synchronize the system event log including the current time of the second real-time clock to the baseboard management controller through a system event log command; parse the system event log through the baseboard management controller to obtain the second real-time The current time of the clock; detecting whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller; if the current time of the second real-time clock is consistent with the current core time of the baseboard management controller If they are inconsistent, use the current time of the second real-time clock to calibrate the current core time of the baseboard management controller to update the current core time of the baseboard management controller. It can be understood that after the server is powered on, if it is detected that the server is currently in the second state of starting, the basic input and output system BIOS will start initialization at this time. After the BIOS startup initialization is completed, the BIOS will start from the second state of the server motherboard. Read the current time T2 of the second real-time clock RTC2 from the real-time clock RTC2. Then, the BIOS will synchronize the system event log containing the current time T2 of RTC2 and the kernel time update command to the BMC. At this time, the BMC receives After the system event and the kernel time update instruction, the system event is first parsed to obtain the current time T2 of RTC2, and then the current time T2 of the second real-time clock RTC2 is first detected to see whether it is consistent with the current core time of the baseboard management controller BMC. If detected If the results are inconsistent, execute the kernel time update command and use the current time T2 obtained by analysis to overwrite the current kernel time of BMC. In this process, the task of BMC is to parse the system events sent by the BIOS and parse the obtained time. T2 is set to the current core time of the BMC. This operation ensures that the BMC carries the latest and most accurate system time. If a conflict occurs during the parsing process, for example, the current kernel time of the BMC is inconsistent with the time T2 sent by the BIOS, the T2 time information of the BIOS will be used first. This is because the time information of the BIOS has a higher priority. It comes directly from the basic input and output system of the system, and the time information provided is more reliable and accurate. It can be seen that the time information sent by the BIOS has a higher priority than the time information sent by the BMC.

In this embodiment, after detecting whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller, the method further includes: if the current time of the second real-time clock is consistent with the baseboard management controller If the current core time of the controller is consistent, it is selected not to calibrate the current core time of the baseboard management controller to keep the current core time of the baseboard management controller unchanged. It can be understood that after detecting whether the current time T2 of the second real-time clock RTC2 of the BMC is consistent with the current core time of the baseboard management controller BMC, if the detection result is that the two are consistent, there is no need to execute the core time update instruction and keep the baseboard The current core time of the management controller BMC remains unchanged.

Step S13: Send the current core time of the baseboard management controller to the first real-time clock, so as to update the current time of the first real-time clock using the current core time of the baseboard management controller.

In this embodiment, after the current core time of the baseboard management controller BMC is updated, the updated current core time of the BMC is sent to the first real-time clock RTC1 of the management board, so that the current core time can be used to update the first real-time clock RTC1 Updating T1 is actually equivalent to writing the BIOS time information T2 directly into the management board RTC1. It can be regarded as the first update operation of the management board RTC1 time after the server is powered on. It was confirmed that the first real-time clock RTC1 of the management board is consistent with the time information in the server BIOS, further ensuring that the time information of the entire system is synchronized.

It can be seen that the present application discloses a server time calibration method, which includes: when detecting that the server is currently in a first state of being powered on and not started, controlling the baseboard management controller to read the preconfigured first time in the server. The current time of a real-time clock, and the current time of the first real-time clock is set to the current kernel time of the baseboard management controller, so that the log system of the server is based on the baseboard management in the first state The current core time of the controller is logged; an energy storage device that powers the first real-time clock is provided at a non-mainboard position in the server; when it is detected that the server is in the second state of being started, the The current time of the second real-time clock on the server motherboard, and when the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller, based on the current time of the second real-time clock, the Calibrating the current core time of the baseboard management controller to update the current core time of the baseboard management controller; sending the current core time of the baseboard management controller to the first real-time clock to utilize the baseboard management controller The current core time of the controller updates the current time of the first real-time clock. It can be seen that when the server is currently in the first state of power-on but not started, the BMC cannot interact with the BIOS. Correspondingly, it cannot obtain valid time information from the hardware. Therefore, when it is in the first state, it directly controls BMC obtains time information from the first real-time clock configured separately on the server as the current time. In this way, even if the server has not been powered on, BMC can obtain valid time information as the current kernel time instead of the initial setting value. Then when the server is in the second state of starting, the BMC can obtain the current time of the second real-time clock on the motherboard, and then compare the current time of the second real-time clock with the current kernel time of the BMC. If they are inconsistent, the The current time of the second real-time clock is used to calibrate the current core time of the BMC, that is, the current time of the second real-time clock is used to update the current core time of the BMC. In this way, the current time of the second real-time clock is used to calibrate the BMC's current core time. The current core time is calibrated and updated to ensure that the BMC's current core time can carry the latest and most accurate system time. Finally, the calibrated BMC's current core time is sent to the first real-time clock again, and the current time of the first real-time clock is updated to confirm that the time information of the first real-time clock and the second real-time clock are consistent, further ensuring that the entire system Time information is synchronized to keep the time in the entire server system up-to-date and accurate.

Referring to FIG. 2 , an embodiment of the present invention discloses a specific server time calibration method. Compared with the previous embodiment, this embodiment further explains and optimizes the technical solution. specific:

Step S21: When it is detected that the server is currently in the first state of being powered on and not started, control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server, and set the first real-time clock to The current time of the clock is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state; in the server An energy storage device that supplies power to the first real-time clock is disposed at a non-mainboard position.

Step S22: When it is detected that the server is in the second starting state, obtain the current time of the second real-time clock on the server motherboard, and compare the current time of the second real-time clock with the baseboard management controller When the current core time is inconsistent, the current core time of the baseboard management controller is calibrated based on the current time of the second real-time clock to update the current core time of the baseboard management controller.

For more detailed processing procedures in steps S21 and S22, please refer to the previously disclosed embodiments and will not be described again here.

Step S23: Detect whether the server is currently in a third state of being powered on; if it is detected that the server is currently in a third state of being powered on, control the baseboard management controller to send the current state of the baseboard management controller. kernel time to the first real-time clock, so that the first real-time clock uses the current kernel time to update the current time of the first real-time clock.

In this embodiment, when the server is currently in the third state of being powered on, if it is already in the powered on state and the synchronization information of the BIOS has been completed, then the baseboard management controller is controlled accordingly and the integrated circuit bus interface is used. Writing the current core time of the baseboard management controller to the first real-time clock. It can be understood that the time information interaction between the BMC and the management board is through the integrated circuit bus interface IIC (Inter-Integrated Circuit). The interaction of time information specifically includes: controlling the baseboard management controller through the integrated circuit The bus interface reads the current time of the first real-time clock preconfigured in the server; controls the baseboard management controller and writes the current core time of the baseboard management controller into the third through the integrated circuit bus interface. A real-time clock. That is, the BMC reads the current time T1 from the first real-time clock RTC1 of the management board and the BMC writes the current kernel time to the first real-time clock RTC1 of the management board into the CMOS memory corresponding to the first real-time clock. In this way , BMC writes the current core time through IIC to update the current time T1 in the first real-time clock RTC1.

It can be seen that if the server is in the third power-on state and the BIOS synchronization information is completed, that is, BIOSpost complete, the BMC kernel time must be consistent with the BIOS time according to the previous description. After that, the BMC will write the kernel time to the management board RTC1 chip through the IIC interface and perform the management board RTC1 time update operation. In addition, the BMC reads and writes the time information of the RTC chip on the management board through the IIC interface. The time information read from the RTC chip will be directly used as the time of the BMC core. In this way, BMC can obtain accurate time information even if the server is not powered on yet. Finally, BMC can obtain reliable and effective time in any time period through the present invention, and can provide accurate timestamps for the log system, thereby helping development and operation and maintenance personnel analyze and locate problems more effectively.

Referring to FIG. 3 , an embodiment of the present invention also discloses that after updating the current time of the first real-time clock using the current core time of the baseboard management controller, the method further includes:

Step S31: Set time synchronization task.

In this embodiment, a time synchronization task is set, called TimeSync_Task. The main responsibility of this time synchronization task is to regularly write the current core time of the BMC to the management board RTC1 chip through the IIC interface, that is, to execute "System-To-Rtc1" regularly.

Step S32: Trigger the time synchronization task regularly to perform time synchronization in sequence according to the synchronization update priority order of the time of the second real-time clock, the time of the basic input and output system, the time of the baseboard management controller and the time of the first real-time clock. Update operation.

In this embodiment, the time synchronization task is triggered regularly. When any time synchronization task is executed, the time synchronization operation is triggered. The time synchronization of the entire system follows a priority rule, that is, motherboard RTC2 time > BIOS time > BMC core time. >Management board RTC1 time, time information data flow is shown in Figure 4. From a priority perspective, high-priority sources have the right to logically overwrite low-priority time information. Among them, the flow direction of the time information data flow in Figure 4 in a time synchronization task is as follows: first, when the server is powered on, the BMC obtains the current time T1 from the RTC1 of the management board as the current core time of the BMC. When the server starts, BMC immediately obtains T2 of the second real-time clock RTC2 of the server motherboard through the initialized BIOS, that is, the SEL (System Event Log, system event log) time synchronization instruction sent by BIOS to BMC, so that BMC can obtain T2 through analysis and further Calibrate the current core time of the BMC, and then use the calibrated current core time of the BMC to update the current time of the management board RTC1, which is the first update after the server is powered off. Finally, set up a time synchronization task to update the system based on the kernel time in the BMC. The time of the management board RTC1 is updated regularly.

This design can maintain the time synchronization of the entire server system, ensure the normal and efficient operation of the entire system, and also improve the stability of the system. This mechanism not only ensures time synchronization, but also achieves timing accuracy and system operation efficiency.

It can be seen that the timing synchronization of BIOS time, BMC time, and management board RTC1 has been added. Establishing a stable and accurate time synchronization mechanism can avoid problems caused by time errors to the greatest extent and improve the performance and reliability of the server. The role of BMC as a baseboard management controller has been strengthened. It can better monitor, alarm and control servers, thereby improving the stability and efficiency of the entire server system.

Referring to Figure 5, the embodiment of the present invention also discloses a BMC offline self-calibration kernel time method designed with dual RTCs on the server motherboard management board. Specifically:

The RTC2 owned by the motherboard is a further designed motherboard CMOS, which is powered by the motherboard battery and can save important data such as BIOS time. In addition, the management board adds independent RTC1 and power supply battery. This design allows the management board to gain a server power-off timing capability that is independent of the motherboard CMOS.

When the server is powered on but has not yet started, the BIOS has not yet started the initialization process, so time synchronization information has not yet been sent to the BMC. At this stage, BMC executes "Rtc1-to-System" and reads the time information T1 of RTC1 on the management board through the IIC interface. The time information read by the RTC1 chip will be directly used as the time of the BMC core. In this way, BMC can obtain accurate time information even if the server is not powered on yet.

During the server startup process, when the BIOS completes initialization, it will obtain the time information T2 from the motherboard's RTC2, that is, CMOS. Then, this time information T2 will be synchronized to the BMC through the SEL time synchronization command.

In this process, the BMC's task is to parse the SEL time information sent by the BIOS and set this time as the current kernel time of the BMC. This operation ensures that the BMC carries the latest and most accurate system time. If a conflict occurs during the parsing process, for example, the BMC kernel time is inconsistent with the time sent by the BIOS, the BIOS time information will be used first. This is because the time information of the BIOS has a higher priority. It comes directly from the basic input and output system of the system, and the time information provided is more reliable and accurate.

If the server is powered on and the BIOS synchronization information is completed, that is, BIOS post complete, then the BMC executes "System-To-Rtc1" and writes the BMC's current core time to the management board RTC1 chip through the IIC interface. Logically speaking, this is actually equivalent to writing the BIOS time information directly to the management board RTC1. It can be regarded as the first update operation of the management board RTC1 time after the server is powered on. The purpose of this is to confirm that the time information in the management board RTC chip is consistent with the server BIOS, and further ensure that the time information of the entire system is synchronized.

Set up a scheduled time synchronization task, called TimeSync_Task. The main responsibility of this task is to regularly write the current core time of the BMC to the management board RTC1 chip through the IIC interface, that is, to execute "System-to-Rtc1" regularly and perform a time synchronization operation. The time synchronization of the entire system follows a priority rule, that is, motherboard RTC time > BIOS time > BMC kernel time > management board RTC time. From a priority perspective, high-priority sources have the right to logically overwrite low-priority time information. This design can maintain the time synchronization of the entire server system, ensure the normal and efficient operation of the entire system, and also improve the stability of the system. This mechanism not only ensures time synchronization, but also achieves timing accuracy and system operation efficiency.

Referring to Figure 6, an embodiment of the present invention also discloses a server time calibration device, which includes:

The first time acquisition module 11 is configured to, when detecting that the server is currently in the first state of being powered on and not started, control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server, and Set the current time of the first real-time clock to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state Record; an energy storage device that supplies power to the first real-time clock is provided at a non-mainboard position in the server;

The time calibration module 12 is configured to obtain the current time of the second real-time clock on the server motherboard when it is detected that the server is in the second state of starting, and compare the current time of the second real-time clock with the substrate. When the current core time of the management controller is inconsistent, calibrate the current core time of the baseboard management controller based on the current time of the second real-time clock to update the current core time of the baseboard management controller;

The first time update module 13 is configured to send the current core time of the baseboard management controller to the first real-time clock, so as to use the current core time of the baseboard management controller to update the current core time of the first real-time clock. time to update.

It can be seen that this application discloses that when it is detected that the server is currently in the first state of being powered on and not started, the baseboard management controller reads the current time of the first real-time clock preconfigured in the server, and sets The current time of the first real-time clock is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state. ; The non-mainboard position in the server is provided with an energy storage device that supplies power to the first real-time clock; when it is detected that the server is in the second state of being started, the second real-time clock on the server mainboard is obtained. The current time, and when the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller, the current core time of the baseboard management controller is calculated based on the current time of the second real-time clock. Calibrating to update the current core time of the baseboard management controller; sending the current core time of the baseboard management controller to the first real-time clock, so as to utilize the current core time of the baseboard management controller to update the baseboard management controller. The current time of the first real-time clock is updated. It can be seen that when the server is currently in the first state of power-on but not started, the BMC cannot interact with the BIOS. Correspondingly, it cannot obtain valid time information from the hardware. Therefore, when it is in the first state, it directly controls BMC obtains time information from the first real-time clock configured separately on the server as the current time. In this way, even if the server has not been powered on, BMC can obtain valid time information as the current kernel time instead of the initial setting value. Then when the server is in the second state of starting, the BMC can obtain the current time of the second real-time clock on the motherboard, and then compare the current time of the second real-time clock with the current kernel time of the BMC. If they are inconsistent, the The current time of the second real-time clock is used to calibrate the current core time of the BMC, that is, the current time of the second real-time clock is used to update the current core time of the BMC. In this way, the current time of the second real-time clock is used to calibrate the BMC's current core time. The current core time is calibrated and updated to ensure that the BMC's current core time can carry the latest and most accurate system time. Finally, the calibrated BMC's current core time is sent to the first real-time clock again, and the current time of the first real-time clock is updated to confirm that the time information of the first real-time clock and the second real-time clock are consistent, further ensuring that the entire system Time information is synchronized to keep the time in the entire server system up-to-date and accurate.

In some specific implementations, the time calibration module 12 may include:

A first state detection unit, configured to detect whether the server is in the second state of being started after the server is powered on;

An initialization unit, configured to control the basic input and output system to perform a startup initialization operation if it is detected that the server is in the second state of being started;

A command sending unit, configured to control the basic input and output system to obtain the current time of the second real-time clock from the second real-time clock on the server motherboard after the startup initialization of the basic input-output system is completed, and pass the The basic input and output system synchronizes a system event log containing the current time of the second real-time clock to the baseboard management controller through a system event log command;

A log parsing unit configured to parse the system event log through the baseboard management controller to obtain the current time of the second real-time clock;

A time detection unit configured to detect whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller;

A first time calibration unit configured to use the current time of the second real-time clock to calibrate the current time of the baseboard management controller if the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller. The current core time is calibrated to update the current core time of the baseboard management controller.

In some specific implementations, the server time calibration device may specifically include:

A second time calibration unit configured to select not to calibrate the current core time of the baseboard management controller if the current time of the second real-time clock is consistent with the current core time of the baseboard management controller to maintain The current core time of the baseboard management controller remains unchanged.

In some specific implementations, the first time update module 13 may specifically include:

a second state detection unit, configured to detect whether the server is currently in a third state of being powered on;

A time update unit configured to, if it is detected that the server is currently in a third state of being powered on, control the baseboard management controller to send the current core time of the baseboard management controller to the first real-time clock, so that The first real-time clock uses the current kernel time to update the current time of the first real-time clock.

In some specific implementations, the first time acquisition module 11 may specifically include:

A time reading unit configured to control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server through the integrated circuit bus interface;

In some specific implementations, the first time update module 13 may specifically include:

A time writing unit is used to control the baseboard management controller and write the current core time of the baseboard management controller into the first real-time clock through the integrated circuit bus interface.

In some specific implementations, the server time calibration device may specifically include:

Task setting unit, used to set time synchronization tasks;

A task triggering unit, configured to trigger the time synchronization task regularly to sequentially follow the time of the second real-time clock, the time of the basic input and output system, the time of the baseboard management controller and the first real-time clock. Time synchronization update operations are performed in the order of time synchronization update priority.

In some specific implementations, the server time calibration device may specifically include: the first real-time clock and the energy storage device are both disposed on a target circuit board independent of the server mainboard.

Furthermore, the embodiment of the present application also discloses an electronic device. Figure 7 is a structural diagram of the electronic device 20 according to an exemplary embodiment. The content in the figure cannot be considered as any limitation on the scope of use of the present application.

FIG. 7 is a schematic structural diagram of an electronic device 20 provided by an embodiment of the present application. The electronic device 20 may specifically include: at least one processor 21, at least one memory 22, a power supply 23, a communication interface 24, an input-output interface 25 and a communication bus 26. The memory 22 is used to store a computer program, and the computer program is loaded and executed by the processor 21 to implement relevant steps in the server time calibration method disclosed in any of the foregoing embodiments. In addition, the electronic device 20 in this embodiment may specifically be an electronic computer.

In this embodiment, the power supply 23 is used to provide working voltage for each hardware device on the electronic device 20; the communication interface 24 can create a data transmission channel between the electronic device 20 and external devices, and the communication protocol it follows can be applicable Any communication protocol of the technical solution of this application is not specifically limited here; the input and output interface 25 is used to obtain external input data or output data to the external world, and its specific interface type can be selected according to specific application needs. Here Not specifically limited.

The processor 21 may include one or more processing cores, such as a 4-core processor, an 8-core processor, etc. The processor 21 can adopt at least one hardware form among DSP (Digital Signal Processing, digital signal processing), FPGA (Field-Programmable Gate Array, field programmable gate array), and PLA (Programmable Logic Array, programmable logic array). accomplish. The processor 21 may also include a main processor and a co-processor. The main processor is a processor used to process data in the wake-up state, also called CPU (Central Processing Unit, central processing unit); the co-processor is A low-power processor used to process data in standby mode. In some embodiments, the processor 21 may be integrated with a GPU (Graphics Processing Unit, image processor), and the GPU is responsible for rendering and drawing content to be displayed on the display screen. In some embodiments, the processor 21 may also include an AI (Artificial Intelligence, artificial intelligence) processor, which is used to process computing operations related to machine learning.

In addition, the memory 22, as a carrier for resource storage, can be a read-only memory, a random access memory, a magnetic disk or an optical disk, etc. The resources stored thereon can include an operating system 221, a computer program 222, etc., and the storage method can be short-term storage or permanent storage. .

Among them, the operating system 221 is used to manage and control each hardware device and the computer program 222 on the electronic device 20 to realize the calculation and processing of the massive data 223 in the memory 22 by the processor 21. It can be Windows Server, Netware, Unix, Linux etc. In addition to computer programs that can be used to complete the server time calibration method executed by the electronic device 20 disclosed in any of the foregoing embodiments, the computer program 222 may further include computer programs that can be used to complete other specific tasks. In addition to data received by the electronic device and transmitted from an external device, the data 223 may also include data collected by its own input and output interface 25, etc.

Furthermore, this application also discloses a computer-readable storage medium for storing a computer program; wherein when the computer program is executed by a processor, the previously disclosed server time calibration method is implemented. Regarding the specific steps of this method, reference may be made to the corresponding content disclosed in the foregoing embodiments, which will not be described again here.

Each embodiment in this specification is described in a progressive manner. Each embodiment focuses on its differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple. For relevant details, please refer to the description in the method section.

Those skilled in the art may further realize that the units and algorithm steps of each example described in connection with the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both. In order to clearly illustrate the possible functions of hardware and software, Interchangeability, in the above description, the composition and steps of each example have been generally described according to functions. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each specific application, but such implementations should not be considered beyond the scope of this application. The steps of the methods or algorithms described in conjunction with the embodiments disclosed herein may be implemented directly in hardware, in software modules executed by a processor, or in a combination of both. Software modules can be placed in RAM (Random Access Memory), memory, ROM (Read Only Memory), electrically programmable EPROM (Electrically Programmable Read Only Memory), electrically erasable programmable EEPROM (ElectricErasable Programmable Read Only Memory), register, hard disk, removable disk, CD-ROM (Compact Disc-Read Only Memory), or any other form of storage medium known in the technical field.

Finally, 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 these entities or any such actual relationship or sequence between operations. Furthermore, the terms "comprises," "comprises," or any other variations thereof are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also those not expressly listed other elements, or elements inherent to the process, method, article or equipment. Without further limitation, an element defined by the statement "comprises a..." does not exclude the presence of additional identical elements in a process, method, article, or apparatus that includes the stated element.

The server time calibration method, device, equipment and medium provided by the present invention have been introduced in detail above. Specific examples are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for assistance. Understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the field, there will be changes in the specific implementation and application scope based on the idea of the present invention. In summary, the content of this specification does not It should be understood as a limitation of the invention.

Claims (10)

1. A server time calibration method, characterized by including: When it is detected that the server is currently in the first state of being powered on and not started, the baseboard management controller reads the current time of the first real-time clock preconfigured in the server, and sets the current time of the first real-time clock to The time is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state; the non-mainboard in the server An energy storage device is provided at the position to power the first real-time clock; When it is detected that the server is in the second state of starting, the current time of the second real-time clock on the server motherboard is obtained, and the current time of the second real-time clock is compared with the current core time of the baseboard management controller. When inconsistent, calibrating the current core time of the baseboard management controller based on the current time of the second real-time clock to update the current core time of the baseboard management controller; The current core time of the baseboard management controller is sent to the first real-time clock, so that the current time of the first real-time clock is updated with the current core time of the baseboard management controller. 2. The server time calibration method according to claim 1, characterized in that when it is detected that the server is in the second state of being started, the current time of the second real-time clock on the server motherboard is obtained, and When the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller, the current core time of the baseboard management controller is calibrated based on the current time of the second real-time clock to update the current core time of the baseboard management controller. Describes the current core time of the baseboard management controller, including: After the server is powered on, detect whether the server is in the second state of starting; If it is detected that the server is in the second state of starting, then control the basic input and output system to perform a startup initialization operation; After the startup initialization of the basic input and output system is completed, the basic input and output system is controlled to obtain the current time of the second real-time clock from the second real-time clock on the server motherboard, and use the basic input and output system to obtain the current time of the second real-time clock. Synchronizing a system event log containing the current time of the second real-time clock to the baseboard management controller through a system event log command; Parse the system event log through the baseboard management controller to obtain the current time of the second real-time clock; Detect whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller; If the current time of the second real-time clock is inconsistent with the current core time of the baseboard management controller, use the current time of the second real-time clock to calibrate the current core time of the baseboard management controller to update The current core time of the baseboard management controller. 3. The server time calibration method according to claim 2, wherein after detecting whether the current time of the second real-time clock is consistent with the current core time of the baseboard management controller, it further includes: If the current time of the second real-time clock is consistent with the current core time of the baseboard management controller, then choose not to calibrate the current core time of the baseboard management controller to maintain the current core time of the baseboard management controller. Kernel time remains unchanged. 4. The server time calibration method according to claim 2, characterized in that the current kernel time of the baseboard management controller is sent to the first real-time clock in order to utilize the current core time of the baseboard management controller. The kernel time updates the current time of the first real-time clock, including: Detect whether the server is currently in a third state of being powered on; If it is detected that the server is currently in a third state of being powered on, the baseboard management controller is controlled to send the current core time of the baseboard management controller to the first real-time clock, so that the first real-time clock The current time of the first real-time clock is updated using the current kernel time. 5. The server time calibration method according to claim 4, wherein the control substrate management controller reads the current time of the first real-time clock preconfigured in the server, including: Control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server through the integrated circuit bus interface; Correspondingly, controlling the baseboard management controller to send the current core time of the baseboard management controller to the first real-time clock includes: Control the baseboard management controller and write the current core time of the baseboard management controller into the first real-time clock through the integrated circuit bus interface. 6. The server time calibration method according to any one of claims 1 to 5, further comprising: Set time synchronization tasks; The time synchronization task is triggered regularly to prioritize synchronization updates based on the time of the second real-time clock, the time of the basic input and output system, the time of the baseboard management controller, and the time of the first real-time clock. Time synchronization update operations are performed sequentially. 7. The server time calibration method according to claim 1, wherein the first real-time clock and the energy storage device are both disposed on a target circuit board independent of the server mainboard. 8. A server time calibration device, characterized in that it includes: A first time acquisition module, configured to, when detecting that the server is currently in a first state of being powered on and not started, control the baseboard management controller to read the current time of the first real-time clock preconfigured in the server, and The current time of the first real-time clock is set to the current core time of the baseboard management controller, so that the log system of the server performs logging based on the current core time of the baseboard management controller in the first state. ; An energy storage device that supplies power to the first real-time clock is provided at a non-mainboard position in the server; A time calibration module, configured to obtain the current time of the second real-time clock on the server motherboard when it is detected that the server is in the second state of starting, and compare the current time of the second real-time clock with the baseboard management When the current core time of the controller is inconsistent, calibrate the current core time of the baseboard management controller based on the current time of the second real-time clock to update the current core time of the baseboard management controller; A first time update module configured to send the current core time of the baseboard management controller to the first real-time clock, so as to use the current core time of the baseboard management controller to update the current time of the first real-time clock. Make an update. 9. An electronic device, characterized in that it includes: Memory, used to hold computer programs; A processor, configured to execute the computer program to implement the steps of the server time calibration method according to any one of claims 1 to 7. 10. A computer-readable storage medium, characterized in that it is used to store a computer program; wherein when the computer program is executed by a processor, the steps of the server time calibration method according to any one of claims 1 to 7 are implemented. .