CN104407932B - A kind of data back up method and device - Google Patents
A kind of data back up method and device Download PDFInfo
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- CN104407932B CN104407932B CN201410594827.XA CN201410594827A CN104407932B CN 104407932 B CN104407932 B CN 104407932B CN 201410594827 A CN201410594827 A CN 201410594827A CN 104407932 B CN104407932 B CN 104407932B
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Abstract
The embodiment of the invention discloses a kind of data back up method and devices.Method therein may include：Data synchronous point is obtained in the case where production system does not interrupt production；The standby creation data of calamity in first disk of disaster recovery and backup systems is copied in the second disk of disaster recovery and backup systems；Disconnect the connection of the master catalogue and the second data directory of test system；The first data directory in the master catalogue and second disk of the system of testing is established into connection, to realize that test system can read the first data directory in second disk and the data set under the first data directory；The data set in second disk is repaired according to the data set modification record in production system journal file under data synchronous point, to obtain the data backup of creation data in a test system.It using the present invention, may be implemented in the case where not influencing production system normal operation, the data backup to creation data completed in test system.
Description
Technical field
The present invention relates to field of data storage more particularly to a kind of data back up method and device.
Background technology
In the science and technology society of today, the utilization of IT (Information Technology) technology has penetrated into me
Live and work every aspect, bring the previous all no facility of any technological revolution and fast for us, I
Be more than previous any type technology to the dependence of IT system.However IT system provides information skill in the fast development for business
While art architecture, the previous negative factor that we never realize also is brought.Such as the height due to information and processing
Concentration makes business operating be overly dependent upon IT system, and can be greatly affected because of the bursting problem of IT system, serious
Even it can cause operation system that can not be normally carried out.Therefore with the continuous development of IT technologies, production field, apparatus field etc.
Data calamity is increasingly improved for the requirement of technology.The standby i.e. data disaster backup of data calamity, refer to for prevent operation error or
The system failure leads to loss of data, and by total system or partial data set, copy to it from the hard disk or array of applied host machine
The process of his storage medium.
In the prior art, when testing new opplication version, the creation data for using production system is needed, is being tested
Period needs the normal operation for first stopping production system, in the state that production system is in static, completes to production system
The creation data of the disaster recovery of creation data, disaster recovery can test the test number that system uses as new opplication version
According to after disaster recovery process terminates, production system can just be continued, and production has been seriously affected during disaster recovery
The normal operation of system is unfavorable for actual production operation.
Invention content
Technical problem to be solved of the embodiment of the present invention is in the case where not influencing the normal operation of production system,
A kind of data back up method and device are provided, production system creation data is realized, the method for testing system backup data.
In a first aspect, an embodiment of the present invention provides a kind of data back up method, including：
Data synchronous point is obtained in the case where production system does not interrupt production；
When the data synchronous point reaches, the standby creation data of calamity in the first disk of disaster recovery and backup systems is copied to described
In the second disk of disaster recovery and backup systems, wherein the disaster recovery and backup systems are used for generated in process of production to the production system
The creation data progress calamity is standby, and the creation data includes the first of the storage relationship of data set and the reflection data set
Data directory；
Disconnect the connection of the master catalogue and the second data directory of test system, wherein the test system is used for described
Production system is tested, and second data directory is used data directory when testing the test system last time；
When the data synchronous point reaches, by the institute in the master catalogue of the test system and the second disk
It states the first data directory and establishes connection, to realize that the test system can read first number in the second disk
According to the data set under catalogue and first data directory；
According to the data set modification record in the production system journal file under the data synchronous point to described
Data set in two disks is repaired, to obtain the data backup of the creation data, the data in a test system
Collection modification record is the record for the modification operation that the data set is recorded in the journal file.
Second aspect, an embodiment of the present invention provides a kind of data backup devices, including：
Acquisition module, for obtaining data synchronous point in the case where production system does not interrupt production；
Replication module is used for when the data synchronous point reaches, by the standby production of calamity in the first disk of disaster recovery and backup systems
Data copy in the second disk of the disaster recovery and backup systems, wherein the disaster recovery and backup systems are for producing the production system
The creation data progress calamity caused by the process is standby, and the creation data includes data set and the reflection data set
First data directory of storage relationship；
Module is disconnected, the connection of master catalogue and the second data directory for disconnecting test system, wherein the survey
For test system for testing the production system, second data directory tests when institute for the test system last time
The data directory used；
Establish link block, for when the data synchronous point reaches, by the master catalogue of the test system and
First data directory in the second disk establishes connection, to realize that the test system can read described second
The data set under first data directory and first data directory in disk；
Repair module, for being changed according to the data set in the production system journal file under the data synchronous point
Record repairs the data set in the second disk, to which the data for obtaining the creation data in a test system are standby
Part, the data set modification record is the record for the modification operation that the data set is recorded in the journal file.
By implementing the embodiment of the present invention, may be implemented, in the case where not influencing production system normal operation, testing
Realize that the normal use to the creation data of production system and the creation data to production system carry out data backup in system.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of flow diagram of data back up method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of tree structure provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of another data back up method provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of data backup device provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of another data backup device provided in an embodiment of the present invention；
Fig. 6 is the structural schematic diagram of the embodiment provided in an embodiment of the present invention for establishing link block；
Fig. 7 is the structural schematic diagram of the embodiment of recovery module provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment shall fall within the protection scope of the present invention.
It should be noted that the term used in embodiments of the present invention is the mesh only merely for description specific embodiment
, it is not intended to limit the invention." the one of the embodiment of the present invention and singulative used in the attached claims
Kind ", " described " and "the" are also intended to including most forms, unless context clearly shows that other meanings.It is also understood that this
Term "and/or" used herein refers to and includes one or more associated any or all possible group of list items purposes
It closes.
An embodiment of the present invention provides a kind of data back up method and equipment, can not influence production system normal operation
In the case of, test system realizes use and data backup to the creation data of production system.For the ease of understanding this hair
Bright embodiment is below first described the data back up method of the embodiment of the present invention.
Referring to Fig. 1, Fig. 1 is a kind of data back up method flow diagram disclosed by the embodiments of the present invention.Such as Fig. 1 institutes
Show, which may comprise steps of：
101, data synchronous point is obtained in the case where production system does not interrupt production.
In embodiments of the present invention, the production system refers to supporting the information system of routine work running under normal circumstances
System, it includes creation data, creation data processing system and production network.The creation data is production system in production when institute
The data of generation.In the case where not stopping production system normal operation, the operating personnel of production system according to set required, if
Set data synchronous point, the data synchronous point is some time point, can be production system operating personnel it is preset some when
Between point.
102, when the data synchronous point reaches, the standby creation data of calamity in the first disk of disaster recovery and backup systems is copied to
In the second disk of the disaster recovery and backup systems, wherein the disaster recovery and backup systems for producing the production system in process of production
Raw creation data progress calamity is standby, and the creation data includes the storage relationship of data set and the reflection data set
First data directory.
The backup content of disaster recovery and backup systems includes that it is standby to pertain only to calamity in embodiments of the present invention for data backup and system backup
Data backup of the system to the creation data of production system, the data that disaster recovery and backup systems generate production system in process of production into
Row backup, to have creation data in the first disk of disaster recovery and backup systems.Disaster recovery and backup systems relative to production system can be
Can also be locally in strange land, the embodiment of the present invention is not especially limited.Disaster recovery and backup systems can utilize zero to interrupt Flash Copy
(a kind of quick Data Replication Technology in Mobile in a short time copies to a large amount of data based on the state at source data a certain moment
In target data system) technology or other duplication technologies realize the creation data in the first disk stopping production system just
Often the creation data under data synchronous point is obtained in quick copy to second disk in the case of operation.The life of production system
It is hierarchical data to produce data, specifically, can refer to the tree structure of Fig. 2, which is the creation data of production system
Hierarchical structure, set the label name Data of disk that creation data is stored in production system to the root in tree structure
Node, there are two sub-branches under root node, are A files and B files respectively, and there are two sub-branches under A files, divide
Be not C files and D files, under B files there are one sub-branch be E files, under C files there are one leaf node be F numbers
According to collection, under D files there are one leaf node be G data collection, under E files there are one leaf node be H data collection.It is producing
In the disk of system, the storage format of creation data is recordable type, and each record all has recorded every in production system in detail
The data directory of one data set and the reflection data set storage tier relationship, the first data directory, that is, record
Data set storage tier relationship.Specifically, seeing table 1, disaster recovery and backup systems are used to carry out the creation data of production system
Calamity is standby, therefore the creation data in the first disk of disaster recovery and backup systems is identical as the creation data of production system, in the first disk
The storage format of creation data is also also identical as the storage format of the production system in the disk of production system, storage format
For recordable type.
Table 1
| Record number | Label name | Folder name | Filename | Data set name |
| 1 | Data | A | C | F |
| 2 | Data | A | D | G |
| 3 | Data | B | E | H |
103, disconnect test system master catalogue and the second data directory connection, wherein the test system be used for pair
The creation data is tested, and second data directory is used data mesh when testing the test system last time
Record.
In embodiments of the present invention, the host catalog of the test system is divided into master catalogue and data directory, the data
Catalogue can be the data directory for the other equipment for being loaded into the test system, and the other equipment can be disk, CD
Deng the embodiment of the present invention is not especially limited, and after the master catalogue and data directory are attached, could be realized and tested system
It accesses to the data directory of the other equipment under master catalogue in system.Test system is carrying out this production to production system
Before data are tested, the master catalogue for testing system needs the data directory first with the system of last test to disconnect.
It 104, will be in the master catalogue of the test system and the second disk when the data synchronous point reaches
First data directory establish connection, to realize that the test system can read described the in the second disk
The data set under one data directory and first data directory.
In embodiments of the present invention, when test system needs to test production system using creation data, need by
The master catalogue of test system and the first data directory being stored in the second disk of creation data are established and are connected, and are surveyed to realize
Test system can read the data set of the production system according to the first data directory.
105, according to the data set modification record in the production system journal file under the data synchronous point to institute
The data set stated in second disk is repaired, described to obtain the data backup of the creation data in a test system
Data set modification record is the record for the modification operation that the data set is recorded in the journal file.
In embodiments of the present invention, this step is the reparation completed to the creation data in the second disk in disaster recovery and backup systems
Operation, the method for all reparations are all based on the production number that the second disk in disaster recovery and backup systems is replicated from the first disk
According to.For some relatively simple production systems, the update of creation data is relatively slow, and test system is needed using production
When data, it is only necessary to do down at some time point a creation data data backup can, which can be true
Reflect the creation data under some time point on the spot, but for a busy large-scale production system, creation data
It updates relatively fast, when carrying out data backup at some time point, might have something and do honest work underway, therefore obtain
The data backup of creation data can and true creation data there are deviations, therefore only data backup be it is far from being enough, also
It needs to carry out data reparation to the creation data that data backup obtains.The core of data reparation is to maintain a running log, raw
Journal file in production system can record the critical operational information of each affairs, such as before updating the change of data set of operation
Value after value and change.When data synchronous point reaches, the standby creation data of calamity copies to institute in the first disk of disaster recovery and backup systems
In the second disk for stating disaster recovery and backup systems, replicate some possible data in this of short duration time of operation and be not carried out, carry out
Data will carry out data-backoff operation when repairing.It is exactly that the update done is cancelled to retract, cancel newer method be exactly from
The value before the change of data set, and second to that will there be creation data are taken out in the journal file of the creation data of production system
Corresponding data set is revised as the value before change in disk.Rollback means the creation data in second disk to be restored to data
Good working condition before synchronous point.
Specifically, now for the example of a bank transfer, from account button money is produced, it is not in time for write-in and is transferred to account
The creation data that calamity is standby in first disk just has occurred, and to copy to this duplication in the second disks of the disaster recovery and backup systems dynamic
Make.Data set in second disk can show that the money for producing account has deducted, but the money for the user that transfers accounts does not increase, it is clear that be in
The true inconsistent state of creation data, will be from the journal file of production system producing account balance when data-backoff
Change before value find out, and corresponding data set in second disk is revised as the value before change, affairs of transferring accounts just retract
?.Account does not change into inessential, can turn primary again after a period of time, it is important that the creation data in second disk can be extensive
Correct shape in the multiple second disk for copying to the disaster recovery and backup systems to the standby creation data of calamity in the first disk before This move
State.Therefore, the integrality of the creation data in second disk is just maintained.
Referring to Fig. 3, Fig. 3 is the flow diagram of another data back up method provided in an embodiment of the present invention.Such as Fig. 3
Shown, which may comprise steps of：
301, by the data set that the production system generates in process of production and reflect depositing for the data set
First data directory of storage relationship is stored to third disk, as the creation data.
In embodiments of the present invention, production system is in the case where interrupting production, the number that will be generated in process of production
Store the third disk to production system in real time according to the first data directory of the storage relationship for collecting and reflecting these data sets
In, as creation data.The production system can be any application system for being related to data, and the embodiment of the present invention is not made to have
Body limits.
It 302, will be in the modification operation note to the journal file of the data set of the production system.
In embodiments of the present invention, production system is not in the case where interrupting production, meeting in the journal file of production system
The modification operation of each data set, including the value before data set change, the value after change and modification operation are recorded in real time
Time.
303, the creation data in the third disk is copied to described the first of the disaster recovery and backup systems in real time
In disk.
In embodiments of the present invention, production system, can be (a kind of based on master by XRC in the case where not interrupting production
A kind of long-range asynchronous duplication technology that machine Parallel coupled technology and disk hardware are realized) technology or other reproduction technologies realize the
Creation data in three disks is copied in real time in the first disk of disaster recovery and backup systems, to make the first disk in disaster recovery and backup systems
In data it is consistent with the creation data in the third disk of production system.
304, data synchronous point is obtained in the case where production system does not interrupt production.
In embodiments of the present invention, the production system refers to supporting the information system of routine work running under normal circumstances
System, it includes creation data, creation data processing system and production network.The creation data is production system in production when institute
The data of generation.In the case where not stopping production system normal operation, the operating personnel of production system according to set required, if
Set data synchronous point, the data synchronous point is some time point, can be production system operating personnel it is preset some when
Between point.
305, when the data synchronous point reaches, the standby creation data of calamity in the first disk of disaster recovery and backup systems is copied to
In the second disk of the disaster recovery and backup systems, wherein the disaster recovery and backup systems for producing the production system in process of production
Raw creation data progress calamity is standby, and the creation data includes the storage relationship of data set and the reflection data set
First data directory.
The backup content of disaster recovery and backup systems includes that it is standby to pertain only to calamity in embodiments of the present invention for data backup and system backup
Data backup of the system to the creation data of production system, disaster recovery and backup systems can also be locally relative to production system
In strange land, the embodiment of the present invention is not especially limited.Disaster recovery and backup systems can utilize zero to interrupt a kind of Flash Copy (quick numbers
According to reproduction technology, based on the state at source data a certain moment, a large amount of data are copied to target data system in a short time
In) technology or other duplication technologies realize the creation data in the first disk the case where not stopping production system normal operation
In lower quick copy to second disk, the creation data under data synchronous point is obtained.The creation data of production system is level
Type data, specifically, can refer to the tree structure of Fig. 2, which is the hierarchical structure of the creation data of production system,
The label name Data for the disk that creation data is stored in production system is set to the root node in tree structure, in root node
Lower there are two sub-branches, are A files and B files respectively, and there are two sub-branches under A files, are C files and D respectively
File, under B files there are one sub-branch be E files, under C files there are one leaf node be F data sets, in D files
Lower there are one leaf node is G data collection, there are one leaf node is H data collection under E files.In the disk of production system
In, the storage format of creation data is recordable type, and each record all has recorded each data set in production system in detail
And the data directory of the reflection data set storage tier relationship, the data set of first data directory, that is, record
Storage tier relationship.Specifically, seeing table 1, creation data progress calamity of the disaster recovery and backup systems for production system is standby, therefore calamity
Creation data in first disk of standby system is identical as the creation data of production system, and the creation data in the first disk is deposited
It is also also identical as the storage format of the production system in the disk of production system to store up format, storage format is also recordable type.
306, disaster recovery and backup systems set the label name of the second disk to the label name of the third disk, the label
Name in first data directory for indicating the disk name that the data set is stored.
In embodiments of the present invention, label is a mark of a disk, is automatically generated by formatting or is manually set,
An only mark for being different from other disks.Specifically, the disk partition of the lower computer system of acquiescence is this earth magnetism
Disk (C:), local disk (D:) etc., it is called no label at this time, if given a name again to them, such as makes System (C into:),
Game(D:) etc., at this moment the label of C is exactly System, and the label of D is exactly Game.Specifically, corresponding to table 1, it is by production
The third disk renamed as Data of system, the then entitled Data of the label of third disk, by the second disk renaming of disaster recovery and backup systems
For Copy, then the entitled Copy of the label of second disk, the number recorded in the first data directory in the creation data of production system
According to the storage disk integrated as the third disk of production system, the first data in creation data in the second disk of disaster recovery and backup systems
The storage disk of the data set recorded in catalogue is the third disk for being also production system, in order to realize test system from the standby system of calamity
It accesses to creation data in the second disk of system, the label name of the first second disk by disaster recovery and backup systems is needed to be set as described
The label name of third disk, this step are the label for the third disk for setting the label name Copy of second disk to production system
Name Data.
307, disconnect test system master catalogue and the second data directory connection, wherein the test system be used for pair
The creation data is tested, and second data directory is used data mesh when testing the test system last time
Record.
In embodiments of the present invention, the host catalog of the test system is divided into master catalogue and data directory, the data
Catalogue can be the data directory for the other equipment for being loaded into the test system, and the other equipment can be disk, CD
Deng the embodiment of the present invention is not especially limited, and after the master catalogue and data directory are attached, could be realized and tested system
It accesses to the data directory of the other equipment under master catalogue in system.Test system is carrying out this production to production system
Before data are tested, the master catalogue for testing system needs the data directory first with the system of last test to disconnect.
308, the first data directory in the master catalogue of the test system and the second disk is established into physics
Connection, using the first data directory described in software language logical definition in the test system, to realize the test system
System can read first data directory in the second disk and the data set under first data directory.
In embodiments of the present invention, it when test system needs to test the creation data of production system, needs to survey
The master catalogue of test system establishes physical connection with the second disk for being stored with creation data, and uses database in a test system
First data directory described in language or other software programming language logical definition, to realize that the test system can read institute
State first data directory in second disk and the data set under first data directory.
309, all numbers under the data synchronous point are searched in the journal file according to the data synchronous point
According to collection modification operation.
In embodiments of the present invention, the journal file of production system has recorded all modification operations of each data set
Record includes the time of the value before the change of data set, the value after change and modification operation, according to data synchronous point from daily record
All data set modification operation notes corresponded under the data synchronous point are searched in file.
310, all data sets modification under the data synchronous point is operated into corresponding data set in second magnetic
Data-backoff operation is carried out in disk, is the data set modification behaviour under the data synchronous point by the data set recovery
Data set before work, to obtain the data backup of the creation data in a test system.
In embodiments of the present invention, this step is the reparation completed to the creation data in the second disk in disaster recovery and backup systems
Operation, the method for all reparations are all based on the production number that the second disk in disaster recovery and backup systems is replicated from the first disk
According to.For some relatively simple production systems, the update of creation data is relatively slow, and test system is needed using production
When data, it is only necessary to do down at some time point a creation data data backup can, which can be true
Reflect the creation data under some time point on the spot, but for a busy large-scale production system, creation data
It updates relatively fast, when carrying out data backup at some time point, might have something and do honest work underway, therefore obtain
The data backup of creation data can and true creation data there are deviations, therefore only data backup be it is far from being enough, also
It needs to carry out data reparation to the creation data that data backup obtains.The core of data reparation is to maintain a running log, raw
Journal file in production system can record the critical operational information of each affairs, such as before updating the change of data set of operation
Value after value and change.When data synchronous point reaches, the standby creation data of calamity copies to institute in the first disk of disaster recovery and backup systems
In the second disk for stating disaster recovery and backup systems, replicate some possible data in this of short duration time of operation and be not carried out, carry out
Data will carry out data-backoff operation when repairing.It is exactly that the update done is cancelled to retract, cancel newer method be exactly from
The value before the change of data set, and second to that will there be creation data are taken out in the journal file of the creation data of production system
Corresponding data set is revised as the value before change in disk.Rollback means the creation data in second disk to be restored to data
Good working condition before synchronous point.
The above-mentioned method for illustrating the embodiment of the present invention, following for convenient for preferably implementing the embodiment of the present invention
Said program is correspondingly also provided below for coordinating the relevant apparatus for implementing said program.
Referring to Fig. 4, being a kind of structural schematic diagram of data backup device provided in an embodiment of the present invention, the data processing
Device 40 may include：Acquisition module 401, replication module 402 disconnect module 403, establish link block 404 and repair mould
Block 405.
Acquisition module 401, for obtaining data synchronous point in the case where production system does not interrupt production.
In embodiments of the present invention, the production system refers to supporting the information system of routine work running under normal circumstances
System, it includes creation data, creation data processing system and production network.The creation data is production system in production when institute
The data of generation.In the case where not stopping production system normal operation, the operating personnel of production system according to set required, if
Set data synchronous point, the data synchronous point is some time point, can be production system operating personnel it is preset some when
Between point.
Replication module 402 is used for when the data synchronous point reaches, by the standby life of calamity in the first disk of disaster recovery and backup systems
Production data copy in the second disk of the disaster recovery and backup systems, wherein the disaster recovery and backup systems are used for the production system in life
The creation data progress calamity caused by during production is standby, and the creation data includes data set and the reflection data set
Storage relationship the first data directory.
Module 403 is disconnected, the connection of master catalogue and the second data directory for disconnecting test system, wherein institute
Test system is stated for testing the production system, second data directory is tested for the test system last time
When used data directory.
Link block 404 is established, is used for when the data synchronous point reaches, by the master catalogue of the test system
It establishes and connects with first data directory in the second disk, to realize that the test system can read described the
The data set under first data directory and first data directory in two disks.
Repair module 405, for according to the data set in the production system journal file under the data synchronous point
Modification record repairs the data set in the second disk, to obtain the number of the creation data in a test system
According to backup, the data set modification record is the record for the modification operation that the data set is recorded in the journal file.
It will be appreciated that the function of modules can correspond to and scheme with reference in above method embodiment in data backup device 40
The specific implementation mode of 1 embodiment, details are not described herein.
Referring to Fig. 5, being a kind of structural schematic diagram of data backup device provided in an embodiment of the present invention, the data processing
Device 50 may include：Acquisition module 401, copied cells 402 disconnect module 403, establish link block 404, repair module
405, memory module 406, logging modle 407, the first replication module 408 and recovery module 409.
Wherein, acquisition module 401, copied cells 402, disconnect module 403, establish link block 404 and repair mould
The structure and function of block 405 sees the associated description of embodiment illustrated in fig. 4, and details are not described herein.
Memory module 406, the data set for generating the production system in process of production and reflection institute
First data directory for stating the storage relationship of data set is stored to third disk, as the creation data.
Logging modle 407, for the modification operation note of the data set of the production system is literary to the daily record
In part.
First replication module 408, for the creation data in the third disk to be copied to the calamity in real time
In first disk of standby system.
Recovery module 409 sets the label name of the second disk to for disaster recovery and backup systems the volume of the third disk
Entitling, the label name in first data directory for indicating the disk name that the data set is stored.
It will be appreciated that the function of modules can correspond to and scheme with reference in above method embodiment in data backup device 50
The specific implementation mode of 3 embodiments, details are not described herein.
Fig. 6 is referred to, is the structural schematic diagram of the embodiment provided in an embodiment of the present invention for establishing link block；The foundation
Link block 404 may include：Establish connection unit 4041 and definition unit 4042.
Connection unit 4041 is established, is used for first in the master catalogue of the test system and the second disk
Data directory establishes physical connection.
Definition unit 4042, for using the first data mesh described in software language logical definition in the test system
Record, to realize that the test system can read first data directory in the second disk and first number
According to the data set under catalogue.
It will be appreciated that establishing the function of each unit in link block 404 can correspond to reference in above method embodiment
The specific implementation mode of Fig. 3 embodiments, details are not described herein.
Fig. 7 is referred to, is the structural schematic diagram of the embodiment of recovery module provided in an embodiment of the present invention；The recovery module
409 may include：Searching unit 4091 and recovery unit 4092.
Connection unit 4091 is established, for being searched in the data in the journal file according to the data synchronous point
All data sets modification operation under synchronous point.
Recovery unit 4092, for all data sets modification under the data synchronous point to be operated corresponding data set
In the second disk carry out data-backoff operation, by the data set recovery be under the data synchronous point described in
Data set before data set modification operation, to obtain the data backup of the creation data in a test system.
It will be appreciated that the function of each unit can be corresponded to reference to Fig. 3 realities in above method embodiment in recovery module 409
The specific implementation mode of example is applied, details are not described herein.
In conclusion by implementing the embodiment of the present invention, may be implemented the case where not influencing production system normal operation
Under, realize that the normal use to the creation data of production system and the creation data to production system carry out in test system
Data backup.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
It is above disclosed to be only a preferred embodiment of the present invention, the power of the present invention cannot be limited with this certainly
Sharp range, those skilled in the art can understand all or part of the processes for realizing the above embodiment, and is weighed according to the present invention
Equivalent variations made by profit requirement, still belong to the scope covered by the invention.
Claims (10)
1. a kind of data back up method, which is characterized in that including：
Data synchronous point is obtained in the case where production system does not interrupt production；
When the data synchronous point reaches, it is standby that the standby creation data of calamity in the first disk of disaster recovery and backup systems is copied into the calamity
In the second disk of system, wherein the disaster recovery and backup systems are used for generated described in process of production to the production system
Creation data progress calamity is standby, and the creation data includes the first data of the storage relationship of data set and the reflection data set
Catalogue；
Disconnect the connection of the master catalogue and the second data directory of test system, wherein the test system is used for the production
System is tested, and second data directory is used data directory when testing the test system last time；
When the data synchronous point reaches, by described the in the master catalogue of the test system and the second disk
One data directory establishes connection, to realize that the test system can read the first data mesh in the second disk
The data set under record and first data directory；
According to the data set modification record in the production system journal file under the data synchronous point to second magnetic
Data set in disk is repaired, and to obtain the data backup of the creation data in a test system, the data set is repaiied
Change the record for the modification operation for being recorded as recording the data set in the journal file.
2. according to the method described in claim 1, it is characterized in that, described obtain in the case where production system does not interrupt production
Before data synchronous point, the method further includes：
The storage relationship of the data set and the reflection data set that the production system is generated in process of production
The first data directory storage is to third disk, as the creation data；
It will be in the modification operation note to the journal file of the data set of the production system；
The creation data in the third disk is copied in real time in first disk of the disaster recovery and backup systems.
3. according to the method described in claim 2, it is characterized in that, described when the data synchronous point reaches, by the standby system of calamity
After the standby creation data of calamity copies in the second disks of the disaster recovery and backup systems in first disk of system, the disconnections test is
With before the connection of the second data directory, the method further includes the master catalogue of system：
Disaster recovery and backup systems set the label name of the second disk to the label name of the third disk, and the label name is used for
The disk name that the data set is stored is indicated in first data directory.
4. according to the method described in claim 1, it is characterized in that, described when the data synchronous point reaches, by the survey
The master catalogue of test system is established with first data directory in the second disk and is connected, to realize the test
System can read first data directory in the second disk and the data under first data directory
Collection, including：
When the data synchronous point reaches, by the first number in the master catalogue of the test system and the second disk
Physical connection is established according to catalogue, using the first data directory described in software language logical definition in the test system, thus
Realize that the test system can read first data directory in the second disk and first data directory
Under the data set.
5. according to the method described in claim 1, it is characterized in that, it is described according in the production system journal file described
Data set modification record under data synchronous point repairs the data set in the second disk, in a test system
The data backup of the creation data is obtained, including：
All data sets modification under the data synchronous point is searched in the journal file according to the data synchronous point
Operation；
All data sets modification under the data synchronous point is operated corresponding data set to carry out in the second disk
Data-backoff operates, before being the data set modification operation under the data synchronous point by the data set recovery
Data set, to obtain the data backup of the creation data in a test system.
6. a kind of data backup device, which is characterized in that including：
Acquisition module, for obtaining data synchronous point in the case where production system does not interrupt production；
Replication module is used for when the data synchronous point reaches, by the standby creation data of calamity in the first disk of disaster recovery and backup systems
It copies in the second disk of the disaster recovery and backup systems, wherein the disaster recovery and backup systems are used for the production system in production process
In the generated creation data carry out that calamity is standby, the creation data includes the storage of data set and the reflection data set
First data directory of relationship；
Module is disconnected, the connection of master catalogue and the second data directory for disconnecting test system, wherein the test system
For testing the production system, second data directory uses system when being tested by the test system last time
Data directory；
Establish link block, for when the data synchronous point reaches, by the master catalogue of the test system with it is described
First data directory in second disk establishes connection, to realize that the test system can read the second disk
In first data directory and the data set under first data directory；
Repair module, for according to the data set modification record in the production system journal file under the data synchronous point
Data set in the second disk is repaired, to obtain the data backup of the creation data in a test system,
The data set modification record is the record for the modification operation that the data set is recorded in the journal file.
7. device according to claim 6, which is characterized in that described device further includes：
Memory module, the data set for generating the production system in process of production and the reflection data set
Storage relationship first data directory store to third disk, as the creation data；
Logging modle, being used for will be in the modification operation note to the journal file of the data set of the production system；
First replication module, for the creation data in the third disk to be copied to the disaster recovery and backup systems in real time
In first disk.
8. device according to claim 7, which is characterized in that described device further includes,
Recovery module sets the label name of the second disk to for disaster recovery and backup systems the label name of the third disk, institute
Label name is stated for indicating the disk name that the data set is stored in first data directory.
9. device according to claim 6, which is characterized in that the link block of establishing includes：
Establish connection unit, for when the data synchronous point reaches, by the master catalogue of the test system with it is described
The first data directory in second disk establishes physical connection；
Definition unit, for using the first data directory described in software language logical definition in the test system, to real
The existing test system can be read under first data directory and first data directory in the second disk
The data set.
10. device according to claim 6, which is characterized in that the repair module includes：
Searching unit, for searching the institute under the data synchronous point in the journal file according to the data synchronous point
There is data set modification operation；
Recovery unit, for all data sets modification under the data synchronous point to be operated corresponding data set described the
Data-backoff operation is carried out in two disks, and the data set recovery is repaiied for the data set under the data synchronous point
Change the data set before operation, to obtain the data backup of the creation data in a test system.
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| CN109614266A (en) * | 2018-12-05 | 2019-04-12 | 北京和利时***工程有限公司 | A kind of method of data synchronization and device |
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| CN111722880B (en) * | 2020-05-11 | 2024-02-09 | 深圳市共进电子股份有限公司 | Equipment production method and device, terminal equipment and medium |
| CN112395135A (en) * | 2020-11-30 | 2021-02-23 | 福建安正智能科技有限公司 | Data backup method and device for computer room server |
| CN113553007A (en) * | 2021-07-20 | 2021-10-26 | 中国工商银行股份有限公司 | Host disk data snapshot copy method, device, equipment and storage medium |
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| CN101494651B (en) * | 2009-02-11 | 2011-12-07 | 江苏敏捷科技股份有限公司 | Method for active backup of data |
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