CN112988466A - Data backup method, device, equipment, storage medium and program product - Google Patents
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Abstract
An embodiment of the application provides a data backup method, a device, equipment, a storage medium and a program product, wherein the method comprises the following steps: acquiring system data and generating first backup data of the system data, wherein the data format of the first backup data is consistent with that of the system data; generating a plurality of redundant backup data of the first backup data, and storing each redundant backup data; and generating a shared access link of the multiple redundant backup data to access the redundant backup data based on the shared access link, so that data backup based on a cloud is realized, the data backup is flexible and has strong expandability, and the data backup is performed through a data redundancy mechanism, so that the data security is improved.
Description
Technical Field
The embodiment of the application relates to the technical field of internet of things, in particular to a data backup method, device, equipment, storage medium and program product
Background
With the development of 5G and digital economy, the construction level of information systems of various industries is rapidly improved, IT information technology services are deeply combined with various businesses, and data of various unit systems are explosively increased.
For enterprises, data continuously produced by the enterprises are the most valuable core assets of the enterprises, how to protect the safety of the data and avoid data loss is of great importance to the enterprises, and higher requirements are put forward on the IT technology of the enterprises.
The traditional backup product can be installed and used only in a data center, backup data is stored based on a tape format and can be used after being copied and restored to a disk array, the restoration time is from small to daily, and is in direct proportion to the amount of the backup data, so that repeated full backup must be performed periodically, the data backup is time-consuming, the expansibility is poor based on the tape format storage mode, and when the data backup equipment fails, the data cannot be restored.
Disclosure of Invention
The embodiment of the application provides a data backup method, a data backup device, a data backup storage medium and a program product, wherein data backup is performed through a cloud backup and data redundancy mechanism, so that the efficiency, flexibility and safety of data backup are improved, and the cloud storage expandability is high.
In a first aspect, an embodiment of the present application provides a data backup method, including:
acquiring system data and generating first backup data of the system data, wherein the data format of the first backup data is consistent with that of the system data; generating a plurality of redundant backup data of the first backup data, and storing each redundant backup data; generating a shared access link for the plurality of redundant backup data to access the redundant backup data based on the shared access link.
Optionally, generating first backup data of the system data includes:
first backup data of the system data is generated based on a permanent incremental composition technique.
Optionally, generating multiple redundant backup data of the first backup data includes:
acquiring a pre-compiled script file; uploading the first backup data at regular time based on a preset interface of an object storage platform and the script file; generating a plurality of redundant backup data of the first backup data based on an object storage mechanism.
Optionally, periodically uploading the first backup data based on a preset interface of an object storage platform and the script file, where the uploading includes:
acquiring verification information corresponding to the system data based on a preset interface of the object storage platform; and when the verification information meets a preset condition, executing the script file, and uploading the first backup data to the object storage platform at regular time through the preset interface.
Optionally, storing each of the redundant backup data includes:
and storing each redundant backup data into each storage server of the object storage platform.
Optionally, the method further comprises:
when a server for calculating the system data fails, copying any one piece of the redundant backup data through the shared access link so as to calculate the data based on the copied redundant backup data.
In a second aspect, an embodiment of the present application provides a data backup apparatus, including:
the system comprises a first backup module, a second backup module and a third backup module, wherein the first backup module is used for acquiring system data and generating first backup data of the system data, and the data format of the first backup data is consistent with that of the system data; the redundancy backup module is used for generating a plurality of redundancy backup data of the first backup data and storing each redundancy backup data; and the access link generating module is used for generating a shared access link of the multiple redundant backup data so as to access the redundant backup data based on the shared access link.
Optionally, the first backup module is specifically configured to:
first backup data of the system data is generated based on a permanent incremental composition technique.
Optionally, the redundant backup module comprises:
the script acquisition unit is used for acquiring a script file compiled in advance; the first backup uploading unit is used for uploading the first backup data at regular time based on a preset interface of the object storage platform and the script file; a redundant backup unit, configured to generate multiple redundant backup data of the first backup data based on an object storage mechanism; and the redundant data storage unit is used for storing each redundant backup data.
Optionally, the first backup uploading unit is specifically configured to:
acquiring verification information corresponding to the system data based on a preset interface of the object storage platform; and when the verification information meets a preset condition, executing the script file, and uploading the first backup data to the object storage platform at regular time through the preset interface.
Optionally, the redundant data storage unit is specifically configured to:
and storing each redundant backup data into each storage server of the object storage platform.
Optionally, the apparatus further comprises:
and the data replication module is used for replicating any one piece of redundant backup data through the shared access link when a server for computing the system data fails so as to perform data computation based on the replicated redundant backup data.
In a third aspect, an embodiment of the present application provides a data backup device, including: a memory, a processor, and a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to perform the data backup method as provided in any embodiment of the first aspect of the embodiments of the present application.
In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the computer-executable instructions are executed by a processor, the computer-readable storage medium is used to implement a data backup method as provided in any embodiment of the first aspect of the embodiment of the present application.
In a fifth aspect, an embodiment of the present application provides a computer program product, where the program product includes: a computer program stored in a readable storage medium, from which at least one processor of a data backup device can read the computer program, and the at least one processor executes the computer program to cause the data backup device to execute the data backup method provided in any embodiment of the first aspect of the embodiments of the present application.
According to the data backup method, the data backup device, the data backup equipment, the data backup storage medium and the program product, the first backup data of the locally generated system data are generated at the cloud end, the first backup data keep the original data format of the system data, the first backup data are generated by adopting the original format, and the data copying speed is improved; multiple redundant backup data of the first backup data are generated and stored at the cloud end, so that data backup based on the cloud end is realized, the flexibility and the expansibility of the data backup are improved, and meanwhile, the multiple backup data are generated through a redundancy mechanism, so that the safety and the robustness of the data backup are improved; the shared access links of the multiple redundant backup data are generated through the corresponding object identifications, so that when a user needs, the redundant backup data can be accessed based on the shared access links, and quick access and recovery of the data are realized.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is an application scenario diagram of a data backup method according to an embodiment of the present application;
FIG. 2 is a flowchart of a data backup method according to an embodiment of the present application;
FIG. 3 is a flowchart of a data backup method according to another embodiment of the present application;
fig. 4 is a schematic structural diagram of a data backup device according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a data backup device according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a data backup system according to an embodiment of the present application.
With the above figures, there are shown specific embodiments of the present application, which will be described in more detail below. These drawings and written description are not intended to limit the scope of the inventive concepts in any manner, but rather to illustrate the inventive concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
The following explains an application scenario of the embodiment of the present application:
fig. 1 is an application scenario diagram of a data backup method provided in an embodiment of the present application, and as shown in fig. 1, the data backup method provided in the embodiment of the present application is executed on a data backup device or system, specifically, the data backup device may be a computer or a server, and the data backup system may include a management node and a plurality of storage nodes. The production system 110 of a user may continuously generate system data 111, the system data 111 is often core data that is invaluable for the user, and in order to ensure the security of the system data 111, the system data 111 often needs to be backed up, an existing data backup manner often performs backup of the system data 111 by setting a special data center 120 to generate backup data 121, and a data format adopted by the backup data 121 is a tape format, so when data recovery is required, the backup data 121 needs to be copied and restored onto a disk array of the generation system 110 before use, and the recovery time is from an hour level to a day level and is proportional to the amount of data that needs to be backed up, so that repeated full backup must be performed periodically to reduce the complexity and the lengthy time of recovery operation. The traditional data backup method is performed based on the offline data center 120, the expandability is poor, the backup data 121 cannot be directly used due to format change during backup, the backup data 121 needs to be copied to a disk first during data recovery, the required time is long, and when the data center 120 fails, the backup data cannot be recovered, and the safety is poor.
In order to solve the above problems, a main technical solution of the data backup method provided in the embodiment of the present application is: data backup is carried out based on a cloud end, a plurality of redundant backup data can be rapidly derived from the first backup data by generating the first backup data which is consistent with the system data format, the safety and the robustness of the backup data can be improved by adopting a redundancy mechanism, and meanwhile, a shared access link is generated, so that a user can access the backup data according to the self requirement, and when data recovery is needed, one redundant backup data can be directly copied to the local for corresponding data calculation. The data backup is carried out based on the cloud and the data redundancy mechanism, the backup efficiency is high, the flexibility is strong, the expansibility is high, and the backup data consistent with the system data format is adopted, so that a user can directly copy the backup data for use, and the data recovery efficiency is improved.
Fig. 2 is a flowchart of a data backup method according to an embodiment of the present application, and as shown in fig. 2, the data backup method according to the embodiment may be executed by a data backup device or system, and the method includes the following steps:
step S201, acquiring system data, and generating first backup data of the system data.
Wherein the first backup data is consistent with a data format of the system data. The system data may be data generated during the use or production process of any system, such as communication data of each client of the communication system, status data of each user of the online taxi appointment system, and the like. For a system, in order to improve the security of system data, a data generation terminal and a data management terminal are often included, and the generation and management of data are separately performed to protect the security of original data, i.e. system data. The data generating terminal may be a local data center of the user.
Specifically, after acquiring system Data local to a user, first backup Data of the system Data may be generated based on a Data Copy Management (CDM) node. The CDM technology is a new generation cloud data management technology which is clearly defined by an independent consultation and evaluation organization Gartner in 2016, and can be used for data protection, data cross-domain storage, data rapid use and other scenes under enterprise and public unit data centers and hybrid cloud systems. The first backup data can be a golden copy, the golden copy is the latest backup data of the system data, and the golden copy and the system data have the same data format, so that a plurality of virtual copies can be rapidly derived on the basis of the golden copy. Meanwhile, the first backup data are in the original format, so that when the backup data of the cloud end needs to be copied locally, data recovery is not needed, and the backup data can be directly acquired from the cloud end for use.
Further, the system data from the user local related device may be received through an IO interface of the CDM node, thereby generating first backup data of the system data.
Optionally, generating first backup data of the system data includes:
first backup data of the system data is generated based on a permanent incremental composition technique.
Specifically, after the system data is captured, a first backup data of the system data is obtained by a CDM node based on a permanent incremental synthesis technique. And meanwhile, the full data snapshot of the system data is stored in the original format, so that when a logic error or a human error exists, the subsequent derived backup data corresponding to the first backup data can be directly mounted on a corresponding host without data format conversion and IO copy, and the system production is recovered.
Furthermore, the CDM node can adopt a CDM block-level change data capture technology and a permanent incremental synthesis technology to produce first backup data, so that efficient backup of system data is realized, a backup window is reduced, repeated data is eliminated, and the data backup efficiency is improved.
Step S202, generating a plurality of redundant backup data of the first backup data, and storing each of the redundant backup data.
The redundant backup data is generated on the basis of the first backup data, and the format of the redundant backup data is consistent with that of the first backup data.
Specifically, after generating the first backup data, the CDM node transfers the first backup data to the cloud object storage platform, and the object storage platform performs data backup on the first backup data and generates multiple redundant backup data. The object storage platform corresponds to a plurality of storage nodes, and each redundant backup data can be stored in different storage nodes or different disks of the same storage node.
Further, the object storage platform performs data backup by using an object storage mechanism and a redundant storage mechanism, so as to generate multiple redundant backup data of the first backup data. The object storage technology is a distributed data storage technology without a directory hierarchy and data format limitation. The main process of object storage is as follows: the backup data is divided into a plurality of parts and distributed in a plurality of pieces of hardware, and each part is regarded as an object and is stored in the storage space.
Further, the object storage platform may periodically detect the integrity of the redundant backup data, and when finding that part of the redundant backup data is damaged, for example, part of the redundant backup data is lost due to hardware failure, the object storage platform may reconstruct and repair the damaged data by using other redundant backup data.
Optionally, storing each of the redundant backup data includes:
and storing each redundant backup data into each storage server of the object storage platform.
The storage server may also be referred to as a storage node. Different redundant backup data are stored in different storage servers, so that when part of the storage servers fail, complete backup data can still be obtained, the reliability and the availability of the data are ensured, and the safety and the robustness of data backup are improved.
Step S203, generating a shared access link of the multiple redundant backup data, so as to access the redundant backup data based on the shared access link.
The shared access link may be a link based on HTTP (Hyper Text Transfer Protocol) Protocol.
Specifically, after generating multiple redundant backup data, the object storage platform may generate a shared access link based on a storage condition of each redundant backup data, so that an authorized user may access one of the redundant backup data through the shared access link.
Specifically, the shared access link may be sent to the relevant user terminal based on a RESTful (Representational State Transfer) interface of the object storage platform.
According to the data backup method provided by the embodiment of the application, the first backup data of the system data generated locally are generated at the cloud end, the first backup data keep the original data format of the system data, and the first backup data are generated by adopting the original format, so that the data copying speed is improved; multiple redundant backup data of the first backup data are generated and stored at the cloud end, so that data backup based on the cloud end is realized, the flexibility and the expansibility of the data backup are improved, and meanwhile, the multiple backup data are generated through a redundancy mechanism, so that the safety and the robustness of the data backup are improved; the shared access links of the multiple redundant backup data are generated through the corresponding object identifications, so that when a user needs, the redundant backup data can be accessed based on the shared access links, and quick access and recovery of the data are realized.
Fig. 3 is a flowchart of a data backup method according to another embodiment of the present application, and as shown in fig. 3, the data backup method according to this embodiment is further detailed in step S202 in the embodiment shown in fig. 2, and includes a step of adding a data copy after step S203, where the data backup method according to this embodiment includes the following steps:
in step S301, system data is acquired.
Step S302, based on the permanent increment synthesis technology, generating first backup data of the system data.
Step S303, a pre-compiled script file is acquired.
The script file can be placed under an installation folder of an uploading tool of the object storage platform, so that corresponding data can be uploaded to the object storage platform by executing the script file.
Specifically, the script file includes a data upload statement, where the data upload statement may include a name or a path of a folder in which each first backup data is located, and may further include a setting statement of synchronization time.
For example, the upload tool may be S3 Brower, S3 Brower is a graphical interface tool, and the data upload statement may be: s3browser-con. exe sync Test for TK D \ Test s3: obs-180103/Test ncdhs, wherein D: \ Test s3: obs-180103/Test ncdhs is a path where each first backup data is located.
Further, after generating the first backup data, the method further includes: and acquiring a user name and backup configuration information of the user on the object storage platform. The backup configuration information includes an Access domain name Endpoint, an Access Key (AK), an identity verification Key (SK), a data archiving policy, and the like. And after the user passes the verification, determining the storage position and the state of each generated redundant backup data based on the access domain name, the data archiving policy and the like, for example, setting the redundant backup data to be in a readable state only.
Step S304, periodically uploading the first backup data based on a preset interface of the object storage platform and the script file.
The preset interface may be any one or more IO interfaces of the object storage platform.
Specifically, after the user passes the verification, each first backup data in the script file is continuously uploaded to the object storage platform through a preset interface of the object storage platform by executing the script file.
Step S305, based on an object storage mechanism, generating multiple redundant backup data of the first backup data, and storing each of the redundant backup data in each storage server of an object storage platform.
Specifically, the object storage platform generates multiple redundant backup data of the first backup data based on an object storage mechanism, divides each redundant backup data into multiple parts, regards each part as an object, and corresponds to one storage unit, thereby realizing distributed storage of the redundant backup data.
In some embodiments, the number of redundant backup data copies is at least 3 to ensure the security of the backup data.
Optionally, periodically uploading the first backup data based on a preset interface of an object storage platform and the script file, where the uploading includes:
acquiring verification information corresponding to the system data based on a preset interface of the object storage platform; and when the verification information meets a preset condition, executing the script file, and uploading the first backup data to the object storage platform at regular time through the preset interface.
The authentication information may include a user name, an access key, an authentication key, and other information. The verification information meeting the preset condition may be that the verification information is matched with the pre-stored verification information of the user, or that the verification information is matched with each other.
Step S306, generating a shared access link of the multiple redundant backup data.
Step S307, when the server for calculating the system data fails, copying any one piece of the redundant backup data through the shared access link, so as to perform data calculation based on the copied redundant backup data.
Wherein, the server for calculating the system data can be a data management terminal of the system.
Specifically, when the data management terminal breaks down, the cloud data management server or the emergency host is linked through the shared access without format conversion and IO copying, and the redundant backup data of the object storage platform can be directly copied to the cloud data management server or the emergency host, so that the cloud data management server or the emergency host can take over local application, relevant data management tasks of a system can be continued, and the system of a user can normally run. Namely, when the local data is lost or damaged, the user can directly reuse the backup data of the cloud end to carry out system application, and the smooth operation of the system is ensured.
In this embodiment, a CDM node generates first backup data, that is, a gold copy, of a cloud of system data local to a user, where the first backup data and the system data maintain a same data format, and then the first backup data is stored based on an object, and the first backup data is transferred and generated as multiple redundant backup data of the first backup data, and data backup is performed through a data redundancy mechanism, so that security and reliability of data backup are improved; data backup is carried out based on the cloud, so that the flexibility and the expandability of the data backup are improved; the backup data adopts the same data format as the original data, namely the system data, so that when the system fails and the data needs to be copied or restored, the backup data can be directly acquired for application without format conversion and IO copying, and the restoring speed and the response speed of the backup data are improved.
Fig. 4 is a schematic structural diagram of a data backup device according to an embodiment of the present application, and as shown in fig. 4, the data backup device according to the embodiment includes: a first backup module 410, a redundant backup module 420, and an access link generation module 430.
The first backup module 410 is configured to acquire system data and generate first backup data of the system data, where the first backup data is consistent with a data format of the system data; a redundant backup module 420, configured to generate multiple redundant backup data of the first backup data, and store each of the redundant backup data; an access link generating module 430, configured to generate a shared access link for the multiple redundant backup data, so as to access the redundant backup data based on the shared access link.
Optionally, the first backup module 410 is specifically configured to:
first backup data of the system data is generated based on a permanent incremental composition technique.
Optionally, the redundant backup module 420 comprises:
the script acquisition unit is used for acquiring a script file compiled in advance; the first backup uploading unit is used for uploading the first backup data at regular time based on a preset interface of the object storage platform and the script file; a redundant backup unit, configured to generate multiple redundant backup data of the first backup data based on an object storage mechanism; and the redundant data storage unit is used for storing each redundant backup data.
Optionally, the first backup uploading unit is specifically configured to:
acquiring verification information corresponding to the system data based on a preset interface of the object storage platform; and when the verification information meets a preset condition, executing the script file, and uploading the first backup data to the object storage platform at regular time through the preset interface.
Optionally, the redundant data storage unit is specifically configured to:
and storing each redundant backup data into each storage server of the object storage platform.
Optionally, the apparatus further comprises:
and the data replication module is used for replicating any one piece of redundant backup data through the shared access link when a server for computing the system data fails so as to perform data computation based on the replicated redundant backup data.
The data backup apparatus provided in this embodiment may execute the technical solutions of the method embodiments shown in fig. 2 to fig. 3, and the implementation principles and technical effects thereof are similar and will not be described herein again.
Fig. 5 is a schematic diagram of a data backup device according to an embodiment of the present application, and as shown in fig. 5, the data backup device according to the embodiment includes: memory 510, processor 520, and computer programs.
The computer program is stored in the memory 510 and configured to be executed by the processor 520 to implement the data backup method provided in any embodiment corresponding to fig. 2-3 of the present application.
Wherein the memory 510 and the processor 520 are connected by a bus 530.
The relevant description may be understood by referring to the relevant description and effect corresponding to the steps in fig. 2 to fig. 3, and redundant description is not repeated here.
Fig. 6 is a schematic structural diagram of a data backup system according to an embodiment of the present application, and as shown in fig. 6, the system includes: CDM node 610, object storage platform 620, cloud server 630, and schedule management platform 640.
The CDM node 610, the object storage platform 620, and the cloud server 630 are connected by establishing a communication link. CDM node 610 is configured to receive system data and generate first backup data for the system data. The object storage platform 620 is configured to generate multiple redundant backup data of the first backup data, store each of the redundant backup data, and generate a shared access link of the multiple redundant backup data, so as to access the redundant backup data based on the shared access link. The cloud server 630 is configured to copy any one of the redundant backup data through the shared access link when a server that calculates the system data fails, so as to perform data calculation based on the copied redundant backup data.
Specifically, CDM node 610 is configured to generate first backup data of the system data based on a permanent incremental synthesis technique. The object storage platform 620 is specifically configured to generate multiple redundant backup data of the first backup data based on an object storage mechanism, and store each of the redundant backup data in each storage server of the object storage platform.
One embodiment of the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the data backup method provided in any embodiment corresponding to fig. 2 to fig. 6 of the present application.
The computer readable storage medium may be, among others, ROM, Random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.
One embodiment of the present application provides a computer program product, the program product comprising: the computer program is stored in a readable storage medium, from which at least one processor of the data backup device can read the computer program, and the at least one processor executes to implement the data backup method provided in any one of the embodiments corresponding to fig. 2 to fig. 3 of the present application.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules is merely a division of logical functions, and an actual implementation may have another division, for example, a plurality of modules or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or modules, and may be in an electrical, mechanical or other form.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the application being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the application is limited only by the appended claims.
Claims (10)
1. A method for data backup, comprising:
acquiring system data and generating first backup data of the system data, wherein the data format of the first backup data is consistent with that of the system data;
generating a plurality of redundant backup data of the first backup data, and storing each redundant backup data;
generating a shared access link for the plurality of redundant backup data to access the redundant backup data based on the shared access link.
2. The method of claim 1, wherein generating first backup data for the system data comprises:
first backup data of the system data is generated based on a permanent incremental composition technique.
3. The method of claim 1, wherein generating redundant copies of the first backup data comprises:
acquiring a pre-compiled script file;
uploading the first backup data at regular time based on a preset interface of an object storage platform and the script file;
generating a plurality of redundant backup data of the first backup data based on an object storage mechanism.
4. The method of claim 3, wherein the uploading the first backup data periodically based on a preset interface of an object storage platform and the script file comprises:
acquiring verification information corresponding to the system data based on a preset interface of the object storage platform;
and when the verification information meets a preset condition, executing the script file, and uploading the first backup data to the object storage platform at regular time through the preset interface.
5. The method of claim 1, wherein storing each of the redundant backup data comprises:
and storing each redundant backup data into each storage server of the object storage platform.
6. The method of any one of claims 1-5, further comprising:
when a server for calculating the system data fails, copying any one piece of the redundant backup data through the shared access link so as to calculate the data based on the copied redundant backup data.
7. A data backup apparatus, comprising:
the system comprises a first backup module, a second backup module and a third backup module, wherein the first backup module is used for acquiring system data and generating first backup data of the system data, and the data format of the first backup data is consistent with that of the system data;
the redundancy backup module is used for generating a plurality of redundancy backup data of the first backup data and storing each redundancy backup data;
and the access link generating module is used for generating a shared access link of the multiple redundant backup data so as to access the redundant backup data based on the shared access link.
8. A data backup device, comprising: a memory and at least one processor;
the memory stores computer-executable instructions;
the at least one processor executing the computer-executable instructions stored by the memory causes the at least one processor to perform the data backup method of any of claims 1 to 6.
9. A computer-readable storage medium having stored thereon computer-executable instructions which, when executed by a processor, implement the data backup method of any one of claims 1 to 6.
10. A computer program product comprising a computer program which, when executed by a processor, implements a data backup method according to any one of claims 1 to 6.
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