CN107679200A - A kind of online data moving method and device - Google Patents
A kind of online data moving method and device Download PDFInfo
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- CN107679200A CN107679200A CN201710941533.3A CN201710941533A CN107679200A CN 107679200 A CN107679200 A CN 107679200A CN 201710941533 A CN201710941533 A CN 201710941533A CN 107679200 A CN107679200 A CN 107679200A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
- G06F16/214—Database migration support
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Abstract
The invention discloses a kind of online data moving method and device, wherein this method includes：During the first storage location is normally provided in line service, first storage location and the second storage location are accessed；By the data duplication in first storage location into second storage location, and after duplication, it is corresponding in line service to indicate that second storage location substitutes the first storage location offer.The present invention is during the first storage location is normally provided in line service, by the data duplication in first storage location into the second storage location, after data all copy to second storage location, it is transferred to described in line service in second storage location, business is interrupted during transfer, it can be seen that this period for being only transferred to from first storage location second storage location in the present invention in business in line service is interrupted, and the time shifted is very short, the purpose for reducing business interruption time is reached.
Description
Technical field
The present invention relates to technical field of data storage, more specifically to a kind of online data moving method, further relates to
A kind of online data moving apparatus.
Background technology
Data Migration refers to that by the Data Migration in former storage device into new storage device existing method is to interrupt
In line service corresponding to storage device, the data in former storage device are moved in new storage device in Interruption period between The following article, when
After needing the mobile data completely mobile past, realize it is above-mentioned new storage device is just accessed in line service, without visiting again
Former storage device.But the above-mentioned body that will be unable to continue in line service, reduce user during data move
Effect is tested, especially when needing mobile data volume very big, the time correspondingly spent in migration operation is longer,
The time of i.e. online service disconnection is longer.
In summary, how a kind of data migration method for reducing online business interruption time is provided, is current this area
Technical staff's urgent problem to be solved.
The content of the invention
It is an object of the invention to provide a kind of online data moving method and device, it is possible to reduce during online service disconnection
Between.
To achieve these goals, the present invention provides following technical scheme：
A kind of online data moving method, including：
During the first storage location is normally provided in line service, first storage location and described second is accessed
Storage location；
By the data duplication in first storage location into second storage location, and after duplication, refer to
It is corresponding in line service to show that second storage location substitutes the first storage location offer.
Preferably, in addition to：
Judge whether the data in second storage location are consistent with the data in first storage location, if one
Cause, then perform the instruction second storage location substitute first storage location provide it is corresponding the line service the step of,
If inconsistent, change partial data inconsistent in second storage location and cause data in second storage location
It is consistent with the data in first storage location, instruction second storage location is performed after modification and substitutes described first
Storage location provides corresponding the line service the step of.
Preferably, by the data duplication in first storage location into second storage location, including：
When the data volume being copied in second storage location is preset data amount, the second storage position is judged
Whether the data put are consistent with corresponding data in first storage location, if unanimously, continuing to store described first
Data duplication in position is into second storage location, if inconsistent, suspends the number in first storage location
According to second storage location is copied to, check that the data for causing to have copied in second storage location are deposited with described first
Storage space the reason for corresponding data are inconsistent in putting, and respective operations are replicated according to adjustment the reason for checking, changed after adjustment
The inconsistent partial data being copied in second storage location so that be copied in second storage location
Data are consistent with corresponding data in first storage location, continue to answer the data in first storage location after modification
Make in second storage location.
Preferably, indicate that second storage location substitutes the first storage location offer and corresponded to after line service,
Also include：
Cut-out accesses the path of first storage location.
Preferably, after cut-out accesses the path of first storage location, in addition to：
Send the prompting for confirming that Data Migration is completed.
A kind of online data moving apparatus, including：
Access unit, it is used for：During the first storage location is normally provided in line service, first storage is accessed
Position and second storage location；
Data migration unit, it is used for：By the data duplication in first storage location into second storage location,
And after duplication, it is corresponding in line service to indicate that second storage location substitutes the first storage location offer.
Preferably, in addition to：
Judging unit, it is used for：After the data migration unit replicates, the number in second storage location is judged
According to whether consistent with the data in first storage location, if unanimously, controlling the data migration unit to perform the finger
Show that second storage location substitutes first storage location and provides corresponding the line service the step of, if inconsistent, change
Inconsistent partial data causes the data in second storage location and the described first storage in second storage location
Data in position are consistent, control the data migration unit to perform instruction second storage location after modification and substitute institute
State the first storage location provide it is corresponding the line service the step of.
Preferably, the data migration unit includes：
Data Migration subelement, is used for：When the data volume being copied in second storage location is preset data amount
When, judge whether the data in second storage location are consistent with corresponding data in first storage location, if unanimously,
Then continue by the data duplication in first storage location into second storage location, if inconsistent, suspend institute
The data duplication stated in the first storage location causes to have copied to second storage location to second storage location, inspection
In data data corresponding with first storage location it is inconsistent the reason for, and according to the reason for checking adjust replicate
Respective operations, the inconsistent partial data being copied in second storage location is changed after adjustment so that be copied to
Data in second storage location are consistent with corresponding data in first storage location, continue described after modification
Data duplication in one storage location is into second storage location.
Preferably, in addition to：
Cutting unit, it is used for：Performed in the data migration unit described in the instruction the second storage location replacement
First storage location, which provides, to be corresponded to after the step of line service, is cut off the access unit and is accessed first storage location
Path.
Preferably, in addition to：
Tip element, it is used for：The road of the access unit access first storage location is cut off in the cutting unit
Behind footpath, the prompting for confirming that Data Migration is completed is sent.
Method provided by the invention：During the first storage location is normally provided in line service, described first is accessed
Storage location and second storage location；By the data duplication in first storage location to second storage location
In, and after duplication, it is corresponding in line service to indicate that second storage location substitutes the first storage location offer.This
Invention is during the first storage location is normally provided in line service, by the data duplication in first storage location to
In two storage locations, after data all copy to second storage location, it is transferred to described second by described in line service and deposits
Storage space is put, and business is interrupted during transfer, it is seen that only stores position from described first in business in line service in the present invention
Put to be transferred to and be interrupted this period of second storage location, and the time shifted is very short, has reached reduction business
The purpose of break period.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of online data moving method provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of online data moving apparatus provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, it illustrates a kind of online data moving method provided in an embodiment of the present invention, can include：
Step S11：During the first storage location is normally provided in line service, the first storage location and second is accessed
Storage location.
A kind of execution subject of online data moving method provided in an embodiment of the present invention can be corresponding online data
Moving apparatus, and the device can be integrated in the equipment with replicate data function, therefore the one of the embodiment of the present application offer
The execution subject of kind online data moving method can have the equipment of replicate data function for this, set this for the ease of expression
For referred to as copying equipment, a kind of online data moving method provided in the application using copying equipment as subject the application enters
Row explanation.For a storage location, the storage location might have stored substantial amounts of data, and these data are the storage
Position realizes that it provides support in line service accordingly, but there may come a time when can there is the demand of Data Migration, will this deposit
The Data Migration that storage space is put is correspondingly, above-mentioned to be then transferred in other storage location in line service to other storage location.
The first storage location is corresponding in line service A in the present invention, in order that the experiencer for obtaining business A keeps good business experience, I
Need holding business A to be normally carried out；Second storage location is the storage location selected according to actual conditions, and it is the first storage
The destination of Data Migration in position.Copying equipment accesses the first storage device and the second storage device, shows the copying equipment
With the authority that data are read and write into the two equipment, it is ready for step S12.
Step S12：By the data duplication in the first storage location into the second storage location, and after duplication, refer to
It is corresponding in line service to show that the second storage location substitutes the offer of the first storage location.
After completing step S11, copying equipment can is by the data duplication in the first storage location to the second storage location
Suffer, because reproduction process can't impact to the data in the first storage location, therefore the first storage in reproduction process
Position still can normally ensure being normally carried out for business A, when copying equipment replicates the data in the first storage location completely
After into the second storage location, the second storage location have with identical data in the first storage location, now second storage position
Support can be provided for business A by putting, so after replicating completely, copying equipment can indicate that the second storage location replaces the first storage
Position provides support for business A, i.e., business A is transferred into the second storage location from the first storage location, the first storage after transfer
Position will not continue to provide support for business A.
In the embodiment of the present invention, during the first storage location is normally provided in line service, by the first storage location
In data duplication into the second storage location, after data all copy to the second storage location, will be transferred in line service
In two storage locations, business is interrupted during transfer, it is seen that only stores position from first in business in line service in the present invention
Put to be transferred to and be interrupted this period of the second storage location, and the time shifted is very short, has reached reduction service disconnection
The purpose of time.
A kind of online data moving method provided in an embodiment of the present invention, after duplication, can also include：
Judge whether the data in the second storage location are consistent with the data in the first storage location, if unanimously, performing
Indicate that the second storage location substitutes the first storage location and provides corresponding the line service the step of, if inconsistent, modification second is deposited
Storage space partial data inconsistent in putting make it that the data in the second storage location are consistent with the data in the first storage location, repaiies
Performed after changing the second storage location of instruction substitute the first storage location provide it is corresponding the line service the step of.
, can be to second after the data in the first storage location are completely copied in the second storage device by copying equipment
Data in storage location are verified, judge data in the second storage location and the data in the first storage location whether one
Cause, when finding there are inconsistent data, then need to modify inconsistent data, i.e., above-mentioned inconsistent data exist
Corresponding data renewal is into the second storage location in first storage location so that the data in the second storage location are deposited with first
Data during storage space is put are consistent.This method can ensure the data in the second storage location and the data one in the first storage location
Cause, and then enable the second storage location normally to provide support in line service A.
Certainly, according to actual conditions, the percentage of an acceptable data concordance rate can be set, when data are consistent
When rate is not less than the percentage, inconsistent data can not be modified；And when data concordance rate is less than the percentage
Than when, then need to modify to inconsistent data, but change when can also need not will all it is inconsistent
Data are all modified to unanimously, can be carried out according to the importance of data selectively modified, i.e., first change even more important data,
So that the concordance rate compared with the data in the first storage location of the data after modification in the second storage location reaches data percentage
.For example, there are 10,000,000 datas, copying equipment needs to replicate 10,000,000 data in the first storage location
Into the second storage location, if data in the second storage location and the concordance rate of the data in the first storage location can be with
The value of reception is arranged to percentage 99.9999%, i.e., in every 1,000,000 data, it is allowed to have 1 data inconsistent, if having replicated
Bi Hou, found by verification, the data concordance rate in the second storage location is 99.9999%, therefore is had in the second storage location
10 datas and the data in the first storage location are inconsistent, but because concordance rate now can be received, then this 10
Inconsistent data can not have to modification；If concordance rate is 99.9998% after checking, it is inconsistent to have 20 datas
, because concordance rate now is less than acceptable percentage, now 20 data can be all modified to and be deposited with first
Storage space puts that middle corresponding data is consistent, can also be modified to 10 even more important datas and first according to the importance of data
Corresponding data is consistent in storage location.
A kind of online data moving method provided in an embodiment of the present invention, by the data duplication in the first storage location to
In two storage locations, it can include：
When the data volume being copied in the second storage location is preset data amount, the number in the second storage location is judged
According to whether data corresponding with the first storage location are consistent, if unanimously, continuing the data duplication in the first storage location
Into the second storage location, if inconsistent, suspend the data duplication in the first storage location to the second storage location, check
Cause to have copied to the reason for data corresponding with the first storage location of the data in the second storage location are inconsistent, and according to
The reason for checking adjustment replicates respective operations, and the inconsistent part number being copied in the second storage location is changed after adjustment
According to so that it is consistent to be copied to the data corresponding with the first storage location of the data in the second storage location, continues after modification
By the data duplication in the first storage location into the second storage location.
The present embodiment can set a default data volume previously according to being actually needed, when copying equipment is by the data volume
Data duplication to after the second storage location, duplication can be temporarily ceased, then to having been copied to the number of the second storage location
According to being verified, check that whether corresponding with the first storage location these data data are consistent.For example, it is assumed that this is pre-
If data volume be arranged to 1,000,000 datas, after 1,000,000 datas are copied to the second storage location by copying equipment, pause
Replicate, check whether 1,000,000 data is consistent with the corresponding data in the first storage location, change and differ if inconsistent
The data of cause make it that data replicated in the second storage location are consistent with the data in the first storage location.In addition, should also
Check that it is what to cause the reason for inconsistent, according to setting related to replicating operation in copying equipment the reason for checking, member
Part or program carry out corresponding modification so that and avoid or reduce as far as possible when continuing to replicate afterwards and cause the inconsistent of data, its
Middle realize searches the technical scheme for causing the reason for inconsistent and corresponding modification and lookup of the prior art and modification principle
Unanimously, will not be repeated here.Beneficial effect when this method is for needing mobile data volume very huge is more apparent, because such as
Fruit verifies to data again after replicating completely, may there is that mass data is inconsistent, and later stage data of modifying are allowed to consistent
Work will bother very much, data may be caused to differ so this method can check in time after the certain data volume of movement
The reason for cause, then modify, can improve be moved to the data in the second storage location with the first storage location
The concordance rate of data.
A kind of online data moving method provided in an embodiment of the present invention, the second storage location of instruction substitute the first storage position
It is corresponding after line service to put offer, can also include：
Cut-out accesses the path of the first storage location.
The first storage location is substituted as after line service A provides support, cut-out accesses the first storage in the second storage location
The path of position can be avoided because error is that the data in the first storage location are completely copied into the second storage location is follow-up
The continuous data replicated in the first storage location, because it is to repeat for the second storage device to continue copied next data
, be likely to result in the second storage location normally can not provide support for business A.Therefore this method can ensure that the second storage is set
Data in standby are not destroyed, and normally can provide support for business A.
A kind of online data moving method provided in an embodiment of the present invention, after cut-out accesses the path of the first storage location,
It can also include：
Send the prompting for confirming that Data Migration is completed.
The prompting for confirming that Data Migration is completed is sent, the prompting can send what can be viewed in time to relevant staff
In equipment, so that relevant staff knows the situation of data Successful migration in time.
The embodiment of the present invention additionally provides a kind of online data moving apparatus, as shown in Fig. 2 can include：
Access unit 11, is used for：During the first storage location is normally provided in line service, the first storage position is accessed
Put and the second storage location；
Data migration unit 12, is used for：By the data duplication in the first storage location into the second storage location, and multiple
After system, it is corresponding in line service that the second storage location of instruction substitutes the offer of the first storage location.
A kind of online data moving apparatus provided in an embodiment of the present invention, can also include：
Judging unit, it is used for：After data migration unit replicates, judge data in the second storage location whether with
Data in first storage location are consistent, if unanimously, control data migration units perform the second storage location of instruction and substitute the
One storage location provides corresponding the line service the step of, if inconsistent, changes part number inconsistent in the second storage location
Consistent with the data in the first storage location according to the data caused in the second storage location, control data migration units are held after modification
Row the second storage location of instruction substitute the first storage location provide it is corresponding the line service the step of.
A kind of online data moving apparatus provided in an embodiment of the present invention, data migration unit can include：
Data Migration subelement, is used for：When the data volume being copied in the second storage location is preset data amount, sentence
Whether corresponding with the first storage location the data data in disconnected second storage location are consistent, if unanimously, continuing first
Data duplication in storage location is into the second storage location, if inconsistent, the data in the first storage location are answered in pause
Make to the second storage location, inspection and cause to have copied to the number corresponding with the first storage location of the data in the second storage location
According to it is inconsistent the reason for, and according to the reason for checking adjustment replicate respective operations, changed after adjustment and be copied to the second storage
Inconsistent partial data in position so that it is corresponding with the first storage location to be copied to the data in the second storage location
Data it is consistent, continue the data duplication in the first storage location after modification into the second storage location.
A kind of online data moving apparatus provided in an embodiment of the present invention, can also include：
Cutting unit, it is used for：The second storage location of instruction is performed in data migration unit, and the offer of the first storage location is provided
Correspond to after the step of line service, cut-out access unit accesses the path of the first storage location.
A kind of online data moving apparatus provided in an embodiment of the present invention, can also include：
Tip element, it is used for：After cutting unit cut-out access unit accesses the path of the first storage location, confirmation is sent
The prompting that Data Migration is completed.
The explanation of relevant portion refers to of the invention real in a kind of online data moving apparatus provided in an embodiment of the present invention
The detailed description of corresponding part in a kind of online data moving method of example offer is provided, will not be repeated here.In addition, the present invention is public
The consistent part of technical scheme realization principle corresponding with prior art and unspecified in the above-mentioned technical proposal opened, in order to avoid mistake
Repeat more.
The foregoing description of the disclosed embodiments, those skilled in the art are enable to realize or using the present invention.To this
A variety of modifications of a little embodiments will be apparent for a person skilled in the art, and generic principles defined herein can
Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited
The embodiments shown herein is formed on, and is to fit to consistent with principles disclosed herein and features of novelty most wide
Scope.
Claims (10)
- A kind of 1. online data moving method, it is characterised in that including：During the first storage location is normally provided in line service, first storage location and the second storage position are accessed Put；By the data duplication in first storage location into second storage location, and after duplication, institute is indicated It is corresponding in line service to state the first storage location offer of the second storage location replacement.
- 2. according to the method for claim 1, it is characterised in that after duplication, in addition to：Judge whether the data in second storage location are consistent with the data in first storage location, if unanimously, Perform the instruction second storage location substitute first storage location provide it is corresponding the line service the step of, if differing Cause, then change partial data inconsistent in second storage location cause data in second storage location with it is described Data in first storage location are consistent, and instruction second storage location is performed after modification and substitutes the first storage position It is corresponding the line service the step of to put offer.
- 3. according to the method for claim 1, it is characterised in that by the data duplication in first storage location described in In second storage location, including：When the data volume being copied in second storage location is preset data amount, judge in second storage location Data it is whether consistent with corresponding data in first storage location, if unanimously, continuing first storage location In data duplication into second storage location, if inconsistent, pause the data in first storage location are answered Second storage location is made, checks the data for causing to have copied in second storage location and the described first storage position The reason for corresponding data are inconsistent in putting, and respective operations are replicated according to adjustment the reason for checking, changed after adjustment multiple Make to the inconsistent partial data in second storage location so that the data being copied in second storage location It is consistent with corresponding data in first storage location, continue to arrive the data duplication in first storage location after modification In second storage location.
- 4. according to the method described in claim any one of 1-3, it is characterised in that described in instruction second storage location substitutes First storage location, which provides, to be corresponded to after line service, in addition to：Cut-out accesses the path of first storage location.
- 5. according to the method for claim 4, it is characterised in that after cut-out accesses the path of first storage location, also Including：Send the prompting for confirming that Data Migration is completed.
- A kind of 6. online data moving apparatus, it is characterised in that including：Access unit, it is used for：During the first storage location is normally provided in line service, first storage location is accessed With the second storage location；Data migration unit, it is used for：By the data duplication in first storage location into second storage location, and After duplication, it is corresponding in line service to indicate that second storage location substitutes the first storage location offer.
- 7. device according to claim 6, it is characterised in that also include：Judging unit, it is used for：After the data migration unit replicates, judge that the data in second storage location are It is no consistent with data in first storage location, if unanimously, controlling the data migration unit to perform the instruction institute State the second storage location substitute first storage location provide it is corresponding the line service the step of, if inconsistent, described in modification Inconsistent partial data causes the data in second storage location and first storage location in second storage location In data it is consistent, control the data migration unit to perform instruction second storage location after modification and substitute described the One storage location provides corresponding the line service the step of.
- 8. device according to claim 6, it is characterised in that the data migration unit includes：Data Migration subelement, is used for：When the data volume being copied in second storage location is preset data amount, sentence Whether the data in second storage location of breaking are consistent with corresponding data in first storage location, if unanimously, after It is continuous by the data duplication in first storage location into second storage location, if inconsistent, pause is by described the Data duplication in one storage location causes to have copied in second storage location to second storage location, inspection The reason for data data corresponding with first storage location are inconsistent, and replicated and corresponded to according to adjustment the reason for checking Operation, changes the inconsistent partial data being copied in second storage location after adjustment so that be copied to described Data in second storage location are consistent with corresponding data in first storage location, continue to deposit described first after modification Storage space put in data duplication into second storage location.
- 9. according to the device described in claim any one of 6-8, it is characterised in that also include：Cutting unit, it is used for：Instruction second storage location, which is performed, in the data migration unit substitutes described first Storage location, which provides, to be corresponded to after the step of line service, cut off the road that the access unit accesses first storage location Footpath.
- 10. device according to claim 9, it is characterised in that also include：Tip element, it is used for：Behind the path that the cutting unit cuts off that the access unit accesses first storage location, Send the prompting for confirming that Data Migration is completed.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710941533.3A CN107679200A (en) | 2017-10-11 | 2017-10-11 | A kind of online data moving method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710941533.3A CN107679200A (en) | 2017-10-11 | 2017-10-11 | A kind of online data moving method and device |
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| CN107679200A true CN107679200A (en) | 2018-02-09 |
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| CN112131179A (en) * | 2020-09-23 | 2020-12-25 | 平安科技（深圳）有限公司 | Task state detection method and device, computer equipment and storage medium |
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