WO2012088960A1

WO2012088960A1 - Method and system for data disaster tolerance

Info

Publication number: WO2012088960A1
Application number: PCT/CN2011/081892
Authority: WO
Inventors: 季小俊
Original assignee: 华为技术有限公司
Priority date: 2010-12-29
Filing date: 2011-11-08
Publication date: 2012-07-05
Also published as: CN102014008A

Abstract

Provided are a method and a system for data disaster tolerance. The method comprises: backing up, by at least one single board in a first device, key identification data stored in a specific single board to itself, wherein the specific single board is the single board in which the key identification data of the first device is stored; recovering, by a second main control board, the key identification data from the single board in which the key identification data is stored, after the main control board of the first device is replaced by the second main control board in which no key identification data is stored. The problem in the prior art that the communication quality in a network served by telecommunication equipment would be affected by the verification of a failed single board can be solved by means of the embodiment of the present invention.

Description

Data disaster tolerance method and system

This application claims priority to Chinese Patent Application No. 201010611284.X, entitled "A Data Recovery Method and System", filed on December 29, 2010, the entire contents of which are incorporated by reference. In this application. Technical field

The present invention relates to the field of telecommunications, and in particular, to a data disaster tolerance method and system. Background of the invention

The existing telecommunication device includes a main control board and a plurality of common single boards. The data involved in the telecommunication equipment includes basic data for identifying the device itself, connection data for connecting to the entire telecommunication network, and service for providing services for the device. Business configuration data.

The main control board is the management board of the telecommunication equipment. The telecommunication equipment is managed by the upper network node of the telecommunication equipment through the main control board. For example, the base data and connection data are saved in the main control board. A common board is used to complete certain service processing functions. It is a board that is managed by the main control board in the telecommunication equipment. For example, the baseband processing board is one of the ordinary boards, and is used for encoding, multiplexing, and modulating digital signals.

If the main control board is faulty, the maintenance personnel can obtain the key identification data of the device in the central equipment room, and then write the key identification data to the replacement board. Then, replace the faulty main control board with the replacement board in the field, or go to The board is replaced by a computer write. The above process usually takes a long time, and the telecommunication equipment cannot be used during this time, which seriously affects the communication quality of the network served by the telecommunication equipment. Summary of the invention

The embodiment of the present invention provides a data disaster tolerance method and system, which can solve the problem that the board in the prior art fails to verify the communication quality of the network served by the telecommunication device.

An aspect of the present invention provides a data disaster tolerance method, including:

The at least one board of the first device backs up the key identification data saved in the specific board to the board, where the specific board is a board that holds the key identification data of the first device;

After the second main control board that does not save the key identification data replaces the main control board of the first device, the second main control board recovers the key identification data from the board that holds the key identification data.

Another aspect of the present invention provides a data disaster tolerance system, including:

a main control board in which the key identification data is stored in the first device, and At least one ordinary board in which the key identification data is stored in the first device.

The method and system provided in this embodiment can restore the key identification data to the new board in time and effectively when a board fails to be replaced by a new board, without the need to import and export manual operation data in the central equipment room. It also does not need to provide a real-time standby board for the main control board, saving time, labor and cost, and reducing data error rate. BRIEF DESCRIPTION OF THE DRAWINGS

1 is a flowchart of a method according to an embodiment of the present invention;

2 is a flowchart of a method according to another embodiment of the present invention;

3 is a flowchart of a method according to another embodiment of the present invention;

4 is a schematic diagram of a system according to another embodiment of the present invention. Mode for carrying out the invention

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

As shown in FIG. 1, an embodiment of the present invention provides a data disaster tolerance method, including the following steps.

110. The at least one board in the first device backs up the key identification data saved in the specific board to the board. The specific board is a board that holds the key identification data of the first device.

The key identification data involved in this step may be written by a veneer manufacturer to a specific board during the production process, or may be imported into a specific board before being used in the first device. Optionally, this step is performed after the first device is powered on. For example, after the first device is powered on, the specific board initiates a synchronization process, that is, the backup process of at least one board in the first device is triggered by a specific board. For example, after the first device is powered on, at least one board in the first device initiates a synchronization process, that is, the board that performs this step triggers the backup process. It can be understood that the board that performs this step is a board other than a specific board in the first device. Optionally, multiple boards in the first device perform backup of key identification data according to the slot number of the board, or the type of the board, or the logical number of the board.

The key identification data in this embodiment may include any one or more of the device identifier of the first device, the network identifier of the network where the first device is located, and the security certificate. Optionally, the key identification data may further include other data required for the first device to be connected to the external device and authenticated, and the external device may be a network node device that is in the same network as the first device and is located on the upper layer of the first device. .

After this step, at least two boards (including specific boards) in the first device store key identification data. and also That is, through this step, all or part of the boards in the first device store key identification data, that is, all or part of the boards in the first device, and the boards that hold the key identification data realize key identification. The synchronization of data, that is, the disaster recovery system that constitutes the key identification data of the first device.

120. Replace the main control board of the first device by the second main control board that does not save the key identification data.

For example, when the main control board of the first device fails, the failed main control board is replaced by the second main control board, and the second main control board does not save the key identification data.

130. The second main control board recovers key identification data from the board that holds the key identification data.

Further, the second main control board works in place of the first main control board, for example, applying key identification data to the external device for connection and mutual authentication.

Through this step, the second main control board recovers the key identification data from the disaster recovery system, and synchronizes the key identification data with the board that holds the key identification data in the first device, and also becomes the key identification data of the first device. Part of the disaster recovery system.

It should be noted that the specific board in this embodiment may be the main control board of the first device, and the board that backs up the key identification data in step 110 is a common board of the first device, and the specific single in this embodiment. The board may be a common board of the first device, and not the main board of the first device. The board that backs up the key identification data in step 110 includes at least the main control board of the first device. The second main control board in step 130 can recover the key identification data from any ordinary board that backs up the key identification data.

In this embodiment, if a plurality of boards hold key identification data, the second main control board may randomly select one of the plurality of boards to recover key identification data, or randomly select all the orders from the first device. Select a board from the board. If the board holds key identification data, restore the key identification data from the board. Otherwise, select one board from the remaining boards until the selected board saves the key. Identify the data and recover key identification data from the board that holds the key identification data. The second main control board can also select a single board according to the priority of the board to recover key identification data. For example, in step 110, priority is set for each board that backs up key identification data, and the second main control board can preferentially recover key identification data from a board with higher priority. The priority of each board may be determined by the slot number of each board. For example, a board with a smaller slot number has a higher priority. The priority of each board may be determined according to the type of the board. For example, the board of the baseband processing board has a higher priority than the board of the transport processing board. The priority of each board may be determined according to the type or importance of the special data stored on the board. For example, the board with the storage identifier or the security certificate has a higher priority than the board with the service configuration type. It should be noted that the existing methods for determining the priority are applicable to the embodiment, and details are not described herein again. Optionally, if multiple boards that have key identification data are not set with corresponding priority, the main The control board can recover key identification data in the order of the slot number of the board that holds the key identification data, or the board type, or the logical number of the board.

The method provided in this embodiment can make the security of the first device stronger and the data disaster recovery effect is better. Even if the main control board fails, even if some other common board fails, the key identification data is not lost. . In addition, when the main control board fails, the process of replacing the main control board is simplified, eliminating the need to manually import and export key identification data, saving time and labor, and reducing the data error rate.

With the method provided in this embodiment, the first device does not need to reserve the second main control board that stores the key identification data, but the key identification data in the main control board is on other useful boards, and the main control board is used as the main control board. In the event of a fault, the critical identification data can be synchronized to the second main control board from any useful board to enable the device to operate normally. This saves the operator from making, transporting and installing the backup board and reducing the cost of the operator. Especially in large-scale telecommunication networks, operators do not have to have backup boards of the main control board in all telecommunication devices, so that the cost reduction effect is more remarkable.

There are various methods for backing up key identification data in a disaster tolerant system for constructing key identification data, and recovering key identification data from the disaster tolerant system in the embodiment of the present invention. For example, copy key identification data. Another example is copying the data obtained by processing the key identification data by using a signature, or a CRC check, or encrypting, or compressing. For example, after the key identification data is fragmented or redundantly processed, it is copied to multiple boards. In addition, if a board backs up all the contents of the key identification data, the second main control board can recover the key identification data from a single board. If the contents of multiple board backups together constitute the entire contents of the key identification data, the second main control board can recover key identification data from the boards. For example, the second main control board copies the key identification data to the board. For example, the second main control board performs similar or reverse processing on the data obtained by using the signature, or CRC check, or encryption, or compression, to obtain key identification data and copy it to the board. For example, the second main control board reversely processes the data obtained by using the fragmentation or performing the redundancy processing, thereby obtaining the key identification data and copying it to the board, and if necessary, performing key identification on the board. Processing such as merging or filtering of data.

Optionally, the backup key identification data further includes a correspondence between the identifier of the backplane and the key identification data of the backup, where the identifier of the backplane corresponds to the backplane in which the board with the key identification data is inserted. Optionally, if the first main control board is replaced by the second main control board due to a fault, the second main control board may first obtain the identifier of the backplane inserted by the second main control board, and query the identifier of the backboard. Correspondence with key identification data is correct. If yes, the second main control board starts to recover the key identification data. For example, the key identification data is restored from one or more boards according to the slot number of the board, or the board type, or the logical number of the board.

As shown in FIG. 2, another embodiment of the present invention provides a method for updating key identification data, which can be used to perform between step 110 and step 120 of the foregoing embodiment. For example, the main control board of the first device does not occur. In case of failure, Key identification data can be updated. This embodiment includes the following steps.

210. The specific board of the first device imports key identification data from a management device of the central office or an external data storage.

For example, the management device of the central office sends the configured key identification data to the first device, and instructs the first device to perform data update, and the specific board of the first device replaces the original key identification data with the received key identification data. .

For example, the external interface of the first device is connected to the data storage, and the specific board of the first device can download the key identification data saved by the data storage and replace the original key identification data with the original identification data.

The board that holds the key identification data in the first device updates the key identification data saved by the board with the key identification data in the specific board.

For example, after the specific board enters the key identification data in step 210, the synchronization process is initiated, that is, the key identification data in the specific board is saved by the board that saves the key identification data, so that all the keys for saving the key identification data are realized. The content saved by the board is the same.

In this embodiment, the key identification data saved by the board in the disaster recovery system can be updated synchronously, so that the security of the first device is stronger.

As shown in FIG. 3, another embodiment of the present invention provides a method for synchronizing key identification data, which can be used after step 110 of the above embodiment. This embodiment includes the following steps.

310. A board other than a specific board that holds key identification data is replaced by a third board that does not store key identification data.

For example, if a board that has key identification data is faulty except for a specific board, the faulty board is replaced by the third board. The third board does not save the key identification data.

320. The third board backs up the key identification data in any board that holds the key identification data to the board. The method for backing up the key identification data in this embodiment can participate in the foregoing embodiment, and details are not described herein again.

In this embodiment, when the board that holds the key identification data fails and is replaced by the third unit, the third board can save the key identification data, so that the third board replaces the faulty board to become a disaster recovery. Part of the system.

In another embodiment of the present invention, when a specific board in which the key identification data is saved in the second device fails, the faulty board is replaced by the fourth board, and the fourth board does not save the key identification. Data, and the other devices of the second device do not save the key identification data, and the second device is a brand new device. For example, if the fourth board selects the other board to copy the key identification data of the second device, the key identification number is not saved. According to. Then, the second device can be processed according to the existing open-end process, and after the second device is powered on, the disaster recovery system for constructing key identification data is constructed by using the method provided by the embodiment of the present invention, and occurs on some boards. When the fault is replaced, the key identification data is recovered from the disaster recovery system or the key identification data is synchronized in time, and will not be described here.

The first device in various embodiments of the present invention may be any telecommunication device, and the type of the board in the telecommunication device does not limit the method provided by the embodiments.

As shown in FIG. 4, another embodiment of the present invention provides a disaster tolerance system, where the system includes a main control board 410 in which a key identification data is stored in a first device, and at least a key identification data is stored in the first device. A common single board, such as a common single board 420, may also include a plurality of ordinary single boards such as ordinary single boards 430 and 440. Optionally, the key identification data saved by the main control board is that the main control board is backed up from the common board, or the key identification data saved by the common board is backed up by the common board from the main control board, and the foregoing implementation is performed. The method for backing up key identification data in the example is applicable to this embodiment, and details are not described herein again. The key identification data in this embodiment may include any one or more of the device identifier of the first device, the network identifier of the network where the first device is located, and the security certificate. Further, the key identification data may further include other data required for the first device to be connected to the external device and authenticated. The external device may be a network node device that is in the same network as the first device and is located on the upper layer of the first device.

The main control board is the main equipment component that is easy to be faulty in the telecommunication equipment (such as the first device), and the failure rate of the common board (such as the board used for processing the service) is relatively low. Therefore, the disaster recovery system provided by the present invention Make full use of the storage space of the common board, and build a data disaster recovery system by using the main control board and the common board (or the memory in the main control board and the ordinary board), so that the disaster recovery system with key identification data is in the first place. The disaster recovery system can restore the key identification data to the new board in a timely and effective manner when a board fails and is replaced by a new board. There is no need to import and export manual operation data in the central computer room, and there is no need to provide a real-time standby board for the main control board, saving time and manpower, and reducing the data error rate.

A person skilled in the art can understand that all or part of the steps of implementing the foregoing embodiments can be completed by a program instructing related hardware, and the program can be stored in a computer readable storage medium, the storage. Media, such as: ROM/RAM, disk, CD, etc.

The above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. These improvements and retouchings should also be considered as The scope of protection of the present invention.

Claims

Rights request

A data disaster recovery method, characterized in that:

The method of claim 1, wherein the at least one board in the first device backs up the key identification data saved in the specific board to the board, and further includes:

The first device is powered on.

The method according to claim 1, wherein the recovering the key identification data from the board that holds the key identification data by the second main control board includes:

The second main control board recovers the key identification data from a board that holds the key identification data; or the second main control board recovers part of the key identification data from a board that holds the key identification data, and saves the key identification from the key Another or multiple boards of data recover other critical identification data.

The method of claim 1, wherein before the main control board of the first device fails and is replaced by the second main control board, the method further includes:

A specific board imports new key identification data from the management device of the central office or an external data storage. The board that holds the key identification data updates the key identification data saved by the board with the new key identification data in the specific board.

The method according to any one of claims 1 to 4, wherein the key identification data comprises a device identifier of the first device, a network identifier of the network where the first device is located, and any one or more of the security certificates. item.

The method according to claim 1, wherein the specific single board is the main control board or a common single board.

The method of claim 1, wherein the replacing the main control board of the first device with the second main control board that does not save the key identification data further includes: The main control board has failed.

8. A disaster tolerance system, characterized in that:

a main control board in which the key identification data is stored in the first device, and

At least one ordinary board in which the key identification data is stored in the first device.

The system according to claim 8, wherein the key identification data saved by the main control board is backed up by the main control board from the ordinary board; or The key identification data saved by the common board is backed up by the ordinary board from the main control board. 0. The system according to claim 8, wherein the key identification data comprises any one or more of a network identifier of a network in which the device of the first device is located, and a security certificate.