CN101072088A - Data backup system, main board and data backup method - Google Patents

Abstract

The invention discloses a data backup system, a main control board and a data backup method, belonging to the communication field. The system includes: a main main control board and a standby main control board. The main control board includes: a monitoring backup module. The method includes: monitoring the data bus of the active main control board, judging whether data backup is required according to the monitored data address, and if necessary, sending the data corresponding to the data address to the standby main control board for backup. The present invention adds a monitoring backup module to the active main control board and the standby main control board at the same time, completes the data backup between the active main control board and the standby main control board through the monitoring backup module, reduces the workload of the CPU, improves the overall performance of the communication system.

Description

Data backup system, main control board and data backup method

technical field

The invention relates to the communication field, in particular to a data backup system, a main control board and a data backup method.

Background technique

In the communication system, in order to ensure the reliability of the carrier class of the system, it is necessary to make redundant backups for key single boards. As the brain of the communication system, the main control board is a key board that requires redundant backup. Generally, there are two main control boards, which are mutual backups. During normal operation, one is the main main control board and the other is the standby main control board. When the main main control board fails, the standby main control board is upgraded to the main main control board to ensure the normal operation of the communication system.

During the operation of the communication system, the main main control board needs to update the network link data and system configuration data in real time, and send the updated data to the service board. In order to minimize the impact on the business when the main control board is switched over, the data on the standby main control board must be synchronized with the active main control board as much as possible. Therefore, the active main control board needs to refresh the standby main control board board data.

In the prior art, the CPU (Central Processing Unit, central processing unit) of the main main control board selects the data to be backed up, and transmits the backup data to the standby main control board through the Ethernet port. All data backup work must be done by The CPU initiates and participates. Referring to Figure 1, the active main control board transmits the data to be backed up to the standby main control board through the Ethernet port (10M/100M/1000M) connected to the bridge.

The processing capability of the main main control board determines part of the performance of the communication system. In the process of realizing the present invention, the inventor found that the work of refreshing the data of the standby main control board by the main main control board occupies the space of the main main control board itself. processing bandwidth, thereby reducing the overall performance of the communication system.

Contents of the invention

In order to reduce the workload of the CPU of the main control board, the embodiments of the present invention provide a data backup system, a main control board and a data backup method. Described technical scheme is as follows:

An embodiment of the present invention provides a data backup system, the system includes an active main control board and a standby main control board, and the active main control board includes:

The main monitoring backup module is used to monitor the main data bus, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the data address to the standby main control board;

The standby main control board includes:

The backup monitoring and backup module is used to receive the data sent by the main monitoring and backup module, and back up the data.

Further, the embodiment of the present invention also provides a main control board, and the main control board includes:

The monitoring backup module is used to monitor the data bus, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the data address to the standby main control board.

Further, the embodiment of the present invention also provides a main control board, and the main control board includes:

The monitoring backup module is used to receive the data sent by the active main control board and back up the data.

Further, the embodiment of the present invention also provides a data backup method, the method comprising:

Monitor the data bus of the active main control board, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the data address to the standby main control board for backup.

The beneficial effects of the technical solution provided by the embodiments of the present invention are:

By adding monitoring and backup modules on the main main control board and the standby main control board, the CPU of the main main control board is freed from the data backup work, and the ability of the CPU of the main main control board to process other affairs is improved.

Description of drawings

Fig. 1 is the schematic diagram that main main control board carries out data backup in the prior art;

Fig. 2 is a structural diagram of the data backup system provided by Embodiment 1 of the present invention;

FIG. 3 is a flowchart of a data backup method provided by Embodiment 4 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

In the embodiment of the present invention, by adding a monitoring backup module on the main control main control board and the standby main control board respectively, the data backup between the main main control board and the standby main control board is completed through the monitoring backup module, thereby reducing The CPU load of the main control board improves the overall performance of the communication system.

Example 1

Referring to FIG. 2, an embodiment of the present invention provides a data backup system, which specifically includes an active main control board and a standby main control board, wherein the active main control board includes:

The main monitoring backup module 101 is used to monitor the main data bus, judge whether data backup needs to be performed according to the monitored data address, and if necessary, send the data corresponding to the monitored data address to the standby main control board;

The spare main control board includes:

Standby monitoring backup module 102, used to receive the data sent by the main monitoring backup module 101, and back up the received data;

Further, the above-mentioned active main control board may also include:

The main storage module is used to store the data of the main main control board, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up;

Correspondingly, the above-mentioned main monitor backup module 101 specifically includes:

The main monitoring unit is used to monitor the main data bus, and judge whether the monitored data address is in the backup data area of the main storage module;

The sending unit is used to send the data corresponding to the monitored data address to the standby main control board after the main monitoring unit judges that the monitored data address is in the backup data area;

The above-mentioned standby main control board may also include:

The backup storage module is used to store the data of the backup main control board, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up;

Correspondingly, the above-mentioned standby monitoring backup module 102 specifically includes:

The standby monitoring unit is used to monitor whether the active main control board sends data;

The writing unit is used for writing the monitored data into the backup data area of the standby storage module after the standby monitoring unit monitors the data.

At the same time, the active main control board and the standby main control board also include a central processing unit for performing data processing and controlling the overall operation of the main and standby main control boards, which belongs to the prior art.

The data backup system provided by this embodiment is widely used, and the data backup system provided by this embodiment can be used in practical applications involving primary and backup data backup.

Example 2

An embodiment of the present invention provides a main control board. The main control board provided in this embodiment can be used as the main main control board in the communication system to realize the functions of the main main control board, specifically including:

The monitoring backup module is used to monitor the data bus, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the monitored data address to the standby main control board.

Further, the above-mentioned main control board may also include:

The storage module is used to store data, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up;

Correspondingly, the above-mentioned monitor backup module specifically includes:

The monitoring unit is used to monitor the data bus, and judge whether the monitored data address is in the backup data area of the above-mentioned storage module;

The sending unit is configured to send the data corresponding to the monitored data address to the standby main control board after the monitoring unit judges that the monitored data address is in the backup data area.

Example 3

An embodiment of the present invention provides a main control board. The main control board provided in this embodiment can be used as a backup main control board in a communication system to realize the function of a backup main control board, specifically including:

The monitoring backup module is used to receive the data sent by the active main control board and back up the received data.

Further, the above-mentioned main control board may also include:

The storage module is used to store data, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up;

Correspondingly, the above-mentioned monitor backup module specifically includes:

The monitoring unit is used to monitor whether the active main control board sends data;

The writing unit is configured to write the monitored data into the backup data area of the storage module after the monitoring unit monitors the data.

Example 4

The embodiment of the present invention provides a data backup method. The method monitors the data bus of the active main control board, judges whether the data needs to be backed up according to the monitored data address, and sends the data to be backed up to the standby main control board. ; The standby main control board receives the data sent by the active main control board, and backs up the received data.

Referring to Figure 3, when the above data backup method is implemented, a monitor backup module is added to the active main control board and the standby main control board respectively, and then the following steps are performed:

Step 401: Initialize the active main control board and the standby main control board, respectively divide the storage space of the active main control board and the standby main control board.

Divide the storage space of the active main control board and the standby main control board into a non-backup data area and a backup data area.

Among them, the non-backup data area stores data that does not need to be backed up; the backup data area stores data that needs to be backed up, and the active main control board needs to refresh the data stored in the backup data area to the backup data area of the standby main control board.

Generally, the data storage space is divided by the space address, for example, the interval with the address range of 0x1000~0x1fff is defined as the non-backup data area; the interval with the address range of 0~0x2fff is defined as the backup data area. The storage space addresses defined here can be continuous or discontinuous.

The data storage space of the active main control board and the standby main control board can be divided according to the same address range, or it can be divided according to different address ranges, that is, the non-backup data of the active main control board and the standby main control board The address ranges of the area or the backup data area may be the same or different.

Generally speaking, the data to be backed up includes the network parameters automatically collected during the operation of the communication equipment and the configuration data of the network administrator.

Step 402: When the system is working normally, the main main control board sends the address range of the storage space corresponding to its backup data area to the monitoring backup module of the main main control board through the control channel, and at the same time, the standby main control board Send the address range of the storage space corresponding to the backup data area to the monitoring backup module of the standby main control board.

Step 403: The monitor backup module of the active main control board monitors the data bus of the active main control board.

The data bus of the main main control board transmits data and data address periodically, and the level signal is different when transmitting data and transmitting data address. The monitoring backup module can judge the data bus according to the strength of the level signal. Whether the transmission is data or a data address.

The order of the data bus to transmit data and data address is not fixed, it can be to transmit the data address first and then the data corresponding to the data address, or to transmit the data first and then the data address corresponding to the data, or both at the same time , in this embodiment, the data address corresponding to the data address is transmitted first and then the data corresponding to the data address is transmitted as an example for illustration.

Step 404: The monitoring and backup module of the main main control board judges whether data backup is required according to the monitored data address, and if necessary, executes step 405; otherwise, executes step 407.

The monitoring backup module judges whether the monitored data address falls within the address range corresponding to the backup data area according to the address range of the storage space corresponding to the backup data area, and if so, the data corresponding to the monitored data address needs to be backed up. That is, the data to be transmitted in the next cycle needs to be backed up; otherwise, the data corresponding to the monitored data address does not need to be backed up.

Step 405: The monitoring and backup module of the active main control board sends the data corresponding to the monitored data address to the monitoring and backup module of the standby main control board.

Step 406: After receiving the data sent by the monitoring and backup module of the active main control board, the monitoring and backup module of the standby main control board backs up the received data.

After receiving the data sent by the active main control board, the monitoring backup module of the standby main control board seizes the data bus of the standby main control board, and writes the received data through the bridge slice according to the address range of the storage space corresponding to the backup data area. into the backup data area of the standby main control board.

Step 407: Do not do any processing, that is, do not back up the data to be transmitted in the next cycle.

Further, in the above method, there may be multiple standby main control boards, and data is backed up to the multiple standby main control boards. When there are multiple standby main control boards, the monitor backup module of the main main control board sends the data to be backed up to the above multiple standby main control boards, and the processing process of these standby main control boards receiving the data to be backed up is the same as above , no longer detailed.

In the embodiment of the present invention, a monitoring backup module is added to the main main control board and the standby main control board respectively, and the data backup work is completed by the monitoring backup module. The CPU of the main main control board basically does not participate in the data backup work, and the work of the CPU The amount of monitoring is very small, and the monitoring of the backup module on the standby main control board will not affect the performance of the communication system; in addition, the monitoring and backup module listens to the CPU bus in real time. Data backup is carried out so that the data on the standby main control board is always synchronized with the main main control board, which minimizes the loss to the communication system caused by the main and standby switchover.

Part of the processes in the embodiments of the present invention can be implemented by software, and the corresponding software can be stored on a readable storage medium, for example, a hard disk, memory or optical disk of a computer.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (10)

1. A data backup system, said system comprising a main control board and a backup main control board, characterized in that said main control board comprises: The main monitoring backup module is used to monitor the main data bus, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the data address to the standby main control board; The standby main control board includes: The backup monitoring and backup module is used to receive the data sent by the main monitoring and backup module, and back up the data. 2. The data backup system according to claim 1, wherein the main main control board further comprises: The main storage module is used to store the data of the main main control board, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up; Correspondingly, the main monitoring backup module specifically includes: The main monitoring unit is used to monitor the main data bus, and judge whether the monitored data address is in the backup data area of the main storage module; The sending unit is configured to send the data corresponding to the data address to the standby main control board after the main monitoring unit determines that the monitored data address is in the backup data area. 3. The data backup system according to claim 1, wherein the standby main control board further comprises: The backup storage module is used to store the data of the backup main control board, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up; Correspondingly, the standby monitoring backup module specifically includes: A standby monitoring unit, configured to monitor whether the active main control board sends data; The writing unit is configured to write the data into the backup data area of the backup storage module after the backup monitoring unit monitors the data. 4. A main control board, characterized in that the main control board comprises: The monitoring backup module is used to monitor the data bus, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the data address to the standby main control board. 5. The main control board according to claim 4, wherein the main control board further comprises: The storage module is used to store data, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up; Correspondingly, the monitoring backup module specifically includes: a monitoring unit, configured to monitor the data bus, and determine whether the monitored data address is in the backup data area of the storage module; The sending unit is configured to send the data corresponding to the data address to the standby main control board after the monitoring unit judges that the monitored data address is in the backup data area. 6. A main control board, characterized in that the main control board comprises: The monitoring backup module is used to receive the data sent by the active main control board and back up the data. 7. The main control board according to claim 6, wherein the main control board further comprises: The storage module is used to store data, and is divided into a non-backup data area for storing data that does not need to be backed up and a backup data area for storing data that needs to be backed up; The monitoring unit is used to monitor whether the active main control board sends data; The writing unit is configured to write the data into the backup data area of the storage module after the monitoring unit monitors the data. 8. A data backup method, characterized in that the method comprises: Monitor the data bus of the active main control board, judge whether data backup is required according to the monitored data address, and if necessary, send the data corresponding to the data address to the standby main control board for backup. 9. The data backup method according to claim 8, wherein the step of judging whether to perform data backup according to the monitored data address specifically comprises: According to the address range of the storage space corresponding to the backup data area of the main main control board, it is judged whether the monitored data address falls within the address range, if yes, the data corresponding to the data address needs to be backed up; otherwise , the data corresponding to the data address does not need to be backed up. 10. The data backup method according to claim 8, wherein the step of sending the data corresponding to the data address to the standby main control board for backup specifically comprises: The active main control board sends the data corresponding to the data address to the standby main control board; After receiving the data, the standby main control board writes the data into the backup data area.

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