CN106155841A - The method and system of data backup - Google Patents
The method and system of data backup Download PDFInfo
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- CN106155841A CN106155841A CN201610470885.0A CN201610470885A CN106155841A CN 106155841 A CN106155841 A CN 106155841A CN 201610470885 A CN201610470885 A CN 201610470885A CN 106155841 A CN106155841 A CN 106155841A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1448—Management of the data involved in backup or backup restore
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1446—Point-in-time backing up or restoration of persistent data
- G06F11/1458—Management of the backup or restore process
- G06F11/1469—Backup restoration techniques
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- General Engineering & Computer Science (AREA)
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Disclosure embodiment provides the method and system of a kind of data backup, belongs to technical field of data processing.Wherein, the method for data backup includes: the data in ergodic data storehouse, based on the change operation to data of record in described database, obtains related data change operation information；Described change operation information is converted into the data alteration command that backup server can recognize that and operates；Send described data alteration command to described backup server.By the data in ergodic data storehouse, obtain data and the change operation that change wherein occurs, and convert thereof into the instruction that server end can recognize that and operates, change the waste resource of full backup in prior art, lose time and present situation that mortality is high, it is achieved that the differential backup of data.
Description
Technical field
Disclosure embodiment relates to technical field of data processing, particularly relates to a kind of data back up method and system.
Background technology
Existing data backup scenario is full dose synchronization scenario, and concrete scheme is when user wants Backup Data each time,
Fully synchronized one time of the significant data that he will be selected, replaces Backup Data by this full dose data.For example, user's desktop
On have 100 App, in the case of satisfied backup condition, this 100 App can full backups store to his high in the clouds；This
When, user has downloaded again 1 App from application shop, and now he has 101 App, meets backup condition in this case
After, this 101 App full backups can be stored to high in the clouds, and all replace original 100 App.
During realizing the application, inventor finds: in prior art, each backup all can existing data again
Backup, though the data having backed up beyond the clouds before comprising in new Backup Data and being not changed in.Therefore, prior art is extremely
There is problems in that less the 1st, because every time can full backup, so more flow can be consumed；2nd, because data volume is more,
The more time can be taken；3rd, because holding time is longer, data volume is big, and the mortality of backup also can increase.
Content of the invention
Disclosure embodiment provides the method and system of a kind of data backup, in order to solve present in prior art one
Or multiple problem, to realize the differential backup of data.
Disclosure embodiment provides a kind of method of data backup, comprising: the data in ergodic data storehouse, based on described number
According to the change operation to data of record in storehouse, obtain related data change operation information；Described change operation information is turned
Change the data alteration command that backup server can recognize that and operates into；Send described data alteration command to described backup services
Device.
Disclosure embodiment provides a kind of method of data backup, comprising: receive client upload backup identifier and
Data alteration command, obtains Backup Data based on described backup identifier；Based on described data alteration command to described standby
Number evidence changes operation accordingly to obtain this Backup Data.
Disclosure embodiment provides the system of a kind of data backup, comprising: spider module, is configured in ergodic data storehouse
Data, based in described database record to the change of data operation, obtain related data change operation information；Conversion
Module, is configured to described change operation information is converted into the data alteration command that backup server can recognize that and operates；Send out
Send module, be configured to send described data alteration command to described backup server.
Disclosure embodiment provides the system of a kind of data backup, comprising: receiver module, is configured to receive in client
The backup identifier passing and data alteration command, obtain Backup Data based on described backup identifier；And backup module, join
Put for operation being changed accordingly to obtain this time backup number to described Backup Data based on described data alteration command
According to.
The method and system of the data backup that disclosure embodiment provides, by the data in ergodic data storehouse, obtain it
The middle data that change occurs and change operation, and convert thereof into the instruction that server end can recognize that and operates, change existing
Full backup waste resource in technology, lose time and present situation that mortality is high, it is achieved that the differential backup of data.
Brief description
In order to be illustrated more clearly that disclosure embodiment or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the accompanying drawing of required use is briefly described, it should be apparent that, the accompanying drawing in describing below is these public affairs
Some embodiments opened, for those of ordinary skill in the art, on the premise of not paying creative work, can also root
Obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the exemplary system architecture that can apply disclosure embodiment；
Fig. 2 is an embodiment flow chart of the method for disclosure data backup；
Fig. 3 is another embodiment flow chart of the method for disclosure data backup；
Fig. 4 is the embodiment interaction flow schematic diagram of the method for disclosure data backup；
Fig. 5 is an example structure schematic diagram of the system of disclosure data backup；
Fig. 6 is another example structure schematic diagram of the system of disclosure data backup；
Fig. 7 is that the structure of the computer system that can apply to realize the terminal device of disclosure embodiment or server is shown
It is intended to.
Detailed description of the invention
Purpose, technical scheme and advantage for making disclosure embodiment are clearer, below in conjunction with disclosure embodiment
In accompanying drawing, the technical scheme in disclosure embodiment is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the disclosure, rather than whole embodiments.Based on the embodiment in the disclosure, those of ordinary skill in the art
The every other embodiment being obtained under the premise of not making creative work, broadly falls into the scope of disclosure protection.
It should be noted that in the case of not conflicting, the embodiment in the disclosure and the feature in embodiment can phases
Combination mutually.Describe the disclosure below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 shows the exemplary system architecture 100 that can apply disclosure embodiment.
As it is shown in figure 1, system architecture 100 can include terminal device the 101st, the 102nd, network 103 and server 104.Network
The 101st, 103 in order to provide the medium of communication link at terminal device between 102 and server 104.Network 103 can include various
Connection type, for example wired, wireless communication link or fiber optic cables etc..
User 110 can use terminal device the 101st, 102 mutual with server 104 by network 103, to receive or to send
Message etc..The 101st, terminal device can be provided with the application of various telecommunication customer end, such as JICQ, mailbox visitor on 102
Family end, social platform software, audio frequency and video software etc..
The 101st, terminal device 102 can be various electronic equipment, including but not limited to PC, smart mobile phone, flat board
Computer, personal digital assistant, wearable device etc., the 101st, terminal device 102 can also is that intelligent appliance, router etc..
Server 104 can be to provide the server of various service.The data receiving can carry out storing by server,
Analyses etc. are processed, and result is fed back to terminal device.
It should be understood that the number of terminal device in Fig. 1, network and server is only schematically.According to realizing need
Want, can have any number of terminal device, network and server.
Refer to Fig. 2, it illustrates embodiment flow process Figure 200 of the method for disclosure data backup.
As in figure 2 it is shown, in step 201, data in ergodic data storehouse, based on the change to data of record in database
More operate, obtain related data change operation information.
In the present embodiment, backup client is by the data in regular traversal stack room, right according to record in database
The change operation of data, obtains related data change operation information.Wherein, the change operation to data can be for example, new
Increase, delete and modification.Database can record the time of change and corresponding change operation, for example, user and in June, 2016
Within 19th, increased an alarm clock newly, then the time that can record change in database is on June 19th, 2016, and change operation is newly-increased
(add), the information after change is the information of newly-increased alarm clock.Change operation information for example can include change operation and change
After data, further can also include change time, change data unique identifier, change after data only
The backup identifier etc. of the data of the size of the data after one identifier, change and Last Backup, the application does not has in this regard
Restricted.
Then, in step 202., change operation information is converted into the data change that backup server can recognize that and operates
Instruction.
In the present embodiment, backup client changes into, by changing operation information, the number that backup server can recognize that and operates
According to alteration command.Wherein, backup server can recognize that and the data alteration command that operates can e.g. corresponding Json form
Instruction, or the operable instruction of extended formatting, the application does not limit in this regard.Backup client is by from data
Storehouse obtains the data after corresponding change operation and change, and will operate with data write in corresponding code accordingly, shape
Become the instruction that server end can recognize that and operates, directly can grasp accordingly according to corresponding instruction with convenient service device end
Make, and without the operation of the similar comparison carrying out other etc, without carrying out full backup to data, can significantly decrease
The workload of server end.
Afterwards, in step 203, send data alteration command to backup server.
In the present embodiment, backup client sends the data backup command having converted to corresponding backup server.
Wherein, data backup command can be the instruction of Json form, can only comprise to change accordingly operation in data backup command
Identifier with the data of change, it is also possible to the data after the identifier of the data comprise change operation, changing and change
Data after identifier or address information or change.Backup server can periodically carry out the traversal of database and the upper of instruction
Pass, for example, can carry out once weekly, can also be set in the user equipment idle time time of backup, such as morning,
And being set in user when use non-payment network, such as when user uses WiFi, backup client can also be
Remind whether user recovers Backup Data when user equipment start, or also can be with timed reminding, the application is in this regard
Do not limit.
In the present embodiment, backup client passes through ergodic data storehouse, obtains the data of change operation and change, and by it
It is converted into the data alteration command that backup server can recognize that and operates, upload related data alteration command, Ke Yishi afterwards
The now backup to the data that change occurs, thus without all of data are uploaded, the network bandwidth can be saved significantly, improve
Backup efficiency, promotes Consumer's Experience.
In some optional embodiments, backup server is according to the difference of the change operation to data, the data of acquisition
Change operation information is also different.Optionally, when ergodic data storehouse draws the operation of the change to data for updating operation, phase is obtained
The data change operation information closed includes obtaining the exclusive identification code of data, the change to described data operates and the number after change
According to wherein, renewal operation includes newly-increased and modification.For example, user has increased data newly or have modified a certain data, then need
Obtain the data after exclusive identification code, change operation and the change of change data.In other optional embodiments, when
When ergodic data storehouse draws the operation of the change to data for deletion action, obtain related data change operation information and include: obtain
The exclusive identification code fetched data and the change operation to described data.When i.e. change operation is for deletion action, owing to being by former
The data come are deleted, and therefore have only to obtain the exclusive identification code of change data and change operates.
In other optional embodiments, the method for data backup also includes: obtain change operation targeted original
The backup identifier of data, and backup identifier is uploaded to described backup server.Wherein, the backup identifier of initial data
Can be the data that change occurs, the backup identifier of Backup Data i.e..Can e.g. each Backup Data when all can be
Client or server end generate a backup identifier, and this backup identifier can be to set only the time based on backup
One identifier, it is also possible to being the unique identifier of other forms, the application does not limit in this regard.Backup server is by obtaining
Taking and uploading this backup identifier, what can be with the basis of this backup of notification server end, convenient service device end is fixed as early as possible
Position is to corresponding Backup Data.
With further reference to Fig. 3, it illustrates another embodiment flow chart 300 of the method for disclosure data backup.
As it is shown on figure 3, in step 301, receive backup identifier and the data alteration command of client upload, based on standby
Part identifier obtains corresponding Backup Data.
In the present embodiment, backup server receives backup identifier and the data alteration command that backup client uploads,
And obtain corresponding Backup Data by backup identifier.Wherein, backup server can store the multiple of client
Backup Data, specifies exclusive identification code by backup identifier for Backup Data each time, by this exclusive identification code side
Just lookup and the operation to corresponding Backup Data.Wherein, data alteration command can comprise following information, change data
Identifier, the relevant information of data after change operation and change, such as the unique identifier of the data after changing, change
After data address information or change after data itself, further, data alteration command can also include change
Time, the size of data etc. of change, the application does not limit in this regard.
Then, in step 302, based on data alteration command, operation is changed accordingly to obtain to Backup Data
This Backup Data.
In the present embodiment, backup server carries out corresponding change behaviour based on data alteration command to Backup Data
Make to obtain this Backup Data.Backup server is right accordingly according to the change operation of the change data in data backup command
The Backup Data being stored in backup server carries out identical operation to obtain the data of this backup.Such as data change refers to
Order have recorded the deletion action of some data to Backup Data, then server according to this instruction in Backup Data
Some data carry out the data that deletion action i.e. defines this backup, accordingly, also have to the newly-increased of data and modification,
Do not repeat them here.
In the present embodiment, backup server is by obtaining data alteration command and backing up identifier accordingly, to standby
Number evidence operates to obtain the data of this backup accordingly, it is possible to achieve only back up variance data.Further
Ground, it is not necessary to all data are backed up by server end, such that it is able to improve backup efficiency, reduces and takies the network bandwidth,
Backup server only need to operate according to corresponding data backup command accordingly, it is not necessary to is analyzed Backup Data, from
And the operand of server can be reduced, significantly increase the efficiency of backup, shorten BACKUP TIME.
Fig. 4 shows the interaction flow schematic diagram 400 of the embodiment of the data back up method of the disclosure.
As shown in Figure 4, mutual in figure both-end is respectively client 410 and server end 420, it should be noted that this
Disclosed data back up method is not limiting as the quantity of client and server end, can have multiple server end 420 He simultaneously
Multiple clients 410, interaction flow schematic diagram 400 simply schematically illustrates mutual general flow, disclosure side at this
Face does not limit.
In certain embodiments, client 410 and server end 420 carry out the backup operation of data.
First, in step 411, data in client 410 ergodic data storehouse, based in database record to data
Change operation, obtain related data change operation information.Wherein, change operation information and can include occurring the number of change
According to the relevant information of data after, change operation and change, the such as unique identifier of data, data itself, certainly, also may be used
To include the change time, the information such as size of data, the application does not limit in this regard.
Then, in step 412, change operation information is converted into backup server and can recognize that and operate by client 410
Data alteration command.Wherein, data alteration command can the instruction of for example, Json form, wherein have recorded corresponding change
Operation information.Data alteration command can specify, by add, del and mod field, the behaviour that will perform Backup Data
Make.
Afterwards, in step 412, data change operational order is sent to backup server by client 410.Wherein, become
More operation information can be json string, it will be understood to those skilled in the art that and can also is that other data forms, and the disclosure exists
Do not limit in this respect.
Then, in step 421, server end 420 receives backup identifier and the data alteration command of client upload,
Obtain corresponding Backup Data based on backup identifier.Server end 420 can receive according to the Backup Data receiving
Identifier (such as PrevGroupId), obtain corresponding Backup Data.
Then, in step 422, Backup Data is become accordingly by server end 420 based on data alteration command
More operate to obtain this Backup Data.Data alteration command (the such as Json lattice that service end 420 uploads according to client 410
The instruction of formula) in change operation associative operation is carried out to Backup Data, ultimately produce this Backup Data.
Wherein, the associative operation of process can be described as follows by pseudo-code:
In further embodiments, client 410 and server end 420 carry out the recovery operation of data.
First, in step 413, client 410 sends Backup Data recovery request to server end 420.For example, terminal
During start, client 410 can point out the data that can back up, and user selects to need the data of backup afterwards, and client 410 can
Sending corresponding Backup Data recovery request to server end 420, this request can include the mark of the data that needs back up
Know symbol.
Then, in step 423, server end 420 returns corresponding Backup Data to client 410.Server end 420
Resolve the request that client 410 sends, return corresponding data.
The scheme of the data backup that the present embodiment is described can realize following beneficial effect:
1st, the historical data of user is preserved so that it is will not lose, can be recovered when needed；
2nd, by only transmission variance data so that the transmission data payload between client and service end reduces, thus increases
Add the performance of monolithic backup.
Before not using the program, need the data of current backup are all uploaded to service end when uploading backup, because using
The change of the Backup Data at family is fewer (will not even change), repeats to upload so having resulted in substantial amounts of Backup Data
Fall, thus reduce the efficiency of backup；
After using the program, greatly reduce the data volume that backup uploads, effectively reduce offered load, and then increase
Backup efficiency.
Refer to Fig. 5, it illustrates an example structure schematic diagram of the system of disclosure data backup.
As it is shown in figure 5, the system 500 of data backup includes spider module the 501st, modular converter 502 and sending module 503.
Wherein, spider module 501, are configured to the data in ergodic data storehouse, based on the change behaviour to data of record in database
Make, obtain related data change operation information；Modular converter 502, is configured to the change operation obtaining spider module 501
Information is converted into the data alteration command that backup server can recognize that and operates；And sending module 503, it is configured to change
The data alteration command of module 502 conversion sends to backup server.
In some optional embodiments, when traversal draws the operation of the change to data for updating operation, spider module
501 include being configured to further: obtain the exclusive identification code of data, the change to data operates and the data after change, its
In, update operation and include newly-increased and modification.
In some optional embodiments, when traversal draws the operation of the change to data for deletion action, spider module
501 include being configured to further: obtain exclusive identification code and the change operation to data of data.
In other optional embodiments, the system 500 of data backup also includes that identifier acquisition module (does not shows in figure
Go out), it is configured to obtain the backup identifier of the targeted initial data of change operation, and backup identifier is uploaded to backup
Server.
In the present embodiment, the system of data backup passes through spider module ergodic data storehouse, obtains data alteration command, turns
The data change operation information that spider module is obtained by die change block is converted to the data alteration command that server can recognize that and operates,
Sending module sends this instruction to backup server afterwards, it is possible to achieve sorts out variance data in client, and is converted into
Operable instruction is sent to server end, it is achieved only back up variance data, it is not necessary to back up all of data, greatly carry
High backup efficiency.
With further reference to Fig. 6, it illustrates another example structure schematic diagram of the system of disclosure data backup
As shown in Figure 6, the system 600 of data backup includes receiver module 601 and backup module 602.Wherein, receiver module
601, it is configured to receive backup identifier and the data alteration command of client upload, obtain based on backup identifier and back up
Data；And backup module 602, it is configured to the data alteration command based on receiver module 601 receives and Backup Data is entered
Row corresponding change operation is to obtain this Backup Data.
In the present embodiment, the system of data backup by receive change operational order and backup identifier, afterwards based on
Corresponding data are operated by instruction, it is possible to achieve the differential backup of server end, server end only need to receive standby accordingly
Part instruction, and according to instruction, corresponding data are operated, and without all of data being backed up, without to backup
Data are analyzed, and can realize differential backup, improve backup efficiency, significantly reduce the load of backup server.
It should be appreciated that all unit described in Fig. 5 and Fig. 6 and each step in the method with reference to described in Fig. 2 level Fig. 3
Corresponding.Thus, the operation and feature and the corresponding technique effect that describe above with respect to method are equally applicable to Fig. 5 and Fig. 6
In all unit, do not repeat them here.
The server relating in each system above-described and method can be all a server or server
Cluster, wherein each unit above-mentioned also can be single server or server cluster, now, between said units
Show as between the server corresponding to each unit alternately is mutual.
Below with reference to Fig. 7, it illustrates the calculating being suitable to for the terminal device or server realizing disclosure embodiment
The structural representation of machine system 700.
As it is shown in fig. 7, computer system 700 includes CPU (CPU) 701, it can be read-only according to being stored in
Program in memory (ROM) 702 or the program that is loaded into random access storage device (RAM) 703 from storage part 708 and
Perform various suitable action and process.In RAM 703, the system that is also stored with 700 operates required various program and data.
CPU the 701st, ROM 702 and RAM 703 is connected with each other by bus 704.Input/output (I/O) interface 705 is also connected to always
Line 704.
It is connected to I/O interface 705 with lower component: include the importation 706 of keyboard, mouse etc.；Including such as negative electrode is penetrated
The output part 707 of spool (CRT), liquid crystal display (LCD) etc. and loudspeaker etc.；Storage part 708 including hard disk etc.；
And include the communications portion 709 of the NIC of LAN card, modem etc..Communications portion 709 via such as because of
The network of special net performs communication process.Driver 710 is connected to I/O interface 705 also according to needs.Detachable media 711, such as
Disk, CD, magneto-optic disk, semiconductor memory etc., be arranged on driver 710, in order to read from it as required
Computer program as required be mounted into storage part 708.
Especially, according to embodiment of the disclosure, the process describing above with reference to flow chart may be implemented as computer
Software program.For example, embodiment of the disclosure and include a kind of computer program, it includes being tangibly embodied in machine readable
Computer program on medium, described computer program comprises for performing the method shown in flow process Figure 200 and flow chart 300
Program code.In such embodiments, this computer program can be downloaded by communications portion 709 and pacify from network
Dress, and/or be mounted from detachable media 711.
Device embodiment described above is only schematically, and the wherein said unit illustrating as separating component can
To be or to may not be physically separate, as the parts that unit shows can be or may not be physics list
Unit, i.e. may be located at a place, or also can be distributed on multiple NE.Can be selected it according to the actual needs
In some or all of module realize the purpose of the present embodiment scheme.Those of ordinary skill in the art are not paying creativeness
Work in the case of, be i.e. appreciated that and implement.
Through the above description of the embodiments, those skilled in the art it can be understood that to each embodiment can
The mode adding required general hardware platform by software realizes, naturally it is also possible to pass through hardware.Based on such understanding, on
State the part that prior art contributes by technical scheme substantially in other words to embody with the form of software product, should
Computer software product can store in a computer-readable storage medium, such as ROM/RAM, magnetic disc, CD etc., including some fingers
Order is with so that a computer equipment (can be personal computer, server, or the network equipment etc.) performs each and implements
The method described in some part of example or embodiment.
Last it is noted that above example is only in order to illustrate the technical scheme of the disclosure, it is not intended to limit；Although
With reference to previous embodiment, the disclosure is described in detail, it will be understood by those within the art that: it still may be used
Modify with the technical scheme described in foregoing embodiments, or equivalent is carried out to wherein portion of techniques feature；
And these modification or replace, do not make appropriate technical solution essence depart from the disclosure each embodiment technical scheme spirit and
Scope.
Claims (10)
1. the method for a data backup, comprising:
Data in ergodic data storehouse, based on the change operation to data of record in described database, obtain related data
Change operation information；
Described change operation information is converted into the data alteration command that backup server can recognize that and operates；
Send described data alteration command to described backup server.
2. method according to claim 1, the described change operation to data operates for updating, the related number of described acquisition
Include according to change operation information:
Obtain the exclusive identification code of described data, the change to described data operates and the data after change, wherein, and described renewal
Operation includes newly-increased and modification.
3. method according to claim 1, the described change operation to data is deletion action, the related number of described acquisition
Include according to change operation information:
Obtain exclusive identification code and the change operation to described data of described data.
4. method according to claim 1, also includes:
Obtain the backup identifier of the targeted initial data of described change operation, and described backup identifier is uploaded to described
Backup server.
5. a data back up method, comprising:
Receive backup identifier and the data alteration command of client upload, obtain standby accordingly based on described backup identifier
Number evidence；
Based on described data alteration command, operation is changed accordingly to obtain this Backup Data to described Backup Data.
6. the system of a data backup, comprising:
Spider module, is configured to the data in ergodic data storehouse, based on the change behaviour to data of record in described database
Make, obtain related data change operation information；
Modular converter, is configured to described change operation information is converted into the data change that backup server can recognize that and operates
Instruction；
Sending module, is configured to send described data alteration command to described backup server.
7. system according to claim 6, the described change operation to data is for updating operation, and described spider module includes
It is configured to further:
Obtain the exclusive identification code of described data, the change to described data operates and the data after change, wherein, and described renewal
Operation includes newly-increased and modification.
8. system according to claim 6, the described change operation to data is deletion action, and described spider module includes
It is configured to further:
Obtain exclusive identification code and the change operation to described data of described data.
9. system according to claim 6, also includes:
Identifier acquisition module, is configured to obtain the backup identifier of the targeted initial data of described change operation, and will
Described backup identifier is uploaded to described backup server.
10. the system of a data backup, comprising:
Receiver module, is configured to receive backup identifier and the data alteration command of client upload, based on described backup mark
Know symbol and obtain Backup Data；
Backup module, be configured to based on described data alteration command to described Backup Data accordingly change operation with
Obtain this Backup Data.
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| CN201610470885.0A CN106155841A (en) | 2016-06-24 | 2016-06-24 | The method and system of data backup |
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| CN110046060A (en) * | 2018-12-04 | 2019-07-23 | 阿里巴巴集团控股有限公司 | A kind of backup method of asset data, device and service server |
| CN110188142A (en) * | 2019-06-04 | 2019-08-30 | 成都鼎桥通信技术有限公司 | Long-distance disaster method of data synchronization, device, server and storage medium |
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