CN107015887A - Object stores remote copy method and system - Google Patents
Object stores remote copy method and system Download PDFInfo
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- CN107015887A CN107015887A CN201710094415.3A CN201710094415A CN107015887A CN 107015887 A CN107015887 A CN 107015887A CN 201710094415 A CN201710094415 A CN 201710094415A CN 107015887 A CN107015887 A CN 107015887A
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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
- G06F11/1451—Management of the data involved in backup or backup restore by selection of backup contents
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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
- G06F11/1466—Management of the backup or restore process to make the backup process non-disruptive
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- Theoretical Computer Science (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
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- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
Remote copy method is stored the invention discloses a kind of object, is comprised the following steps：According to each data and its characteristic value stored in the first object storage device, first list is generated；According to each data and its characteristic value stored in the second object storage device, second list is generated；Each characteristic value in the first list is searched in the second list；When the current characteristic value in the first list is not present in the second list, second object storage device replicates the corresponding data of the current characteristic value from first object storage device.Remote copy system is stored the invention also discloses a kind of object.Technical scheme aims to solve the problem that the technical problem that the data in storage device cannot be backed up in time.
Description
Technical field
The present invention relates to object storage technology field, more particularly to a kind of object storage remote copy method and object storage
Remote copy system.
Background technology
The data safety of information system is increasingly subject to the concern of masses.Wherein, information system and data are carried out timely
Replicate, be the important step guaranteed data security.
In the prior art, the data in storage device can usually there is a situation where to lose, for example：The maloperation of operating personnel
Cause the database lost that system destruction is caused, the database that the damage of hard disc of computer or the damage of storage medium are caused is lost
Lose, in addition, non-computer systems factor, such as fire, earthquake, floods, are all likely to result in loss of data.
The drawbacks of above-mentioned technical proposal is that the data in storage device cannot be backed up in time, therefore, difficult after loss of data
To give for change.
The content of the invention
It is a primary object of the present invention to provide a kind of object storage remote copy method, it is intended to solve in storage device
The technical problem that data cannot be backed up in time.
To achieve the above object, the object storage remote copy method that the present invention is provided, comprises the following steps：
According to each data and its characteristic value stored in the first object storage device, first list is generated；
According to each data and its characteristic value stored in the second object storage device, second list is generated；
Each characteristic value in the first list is searched in the second list；
When the current characteristic value in the first list is not present in the second list, the second object storage
Equipment replicates the corresponding data of the current characteristic value from first object storage device.
Preferably, the data are file.
Preferably, the data be by each file declustering into several objects.
Preferably, after each characteristic value searched in the second list in the first list, in addition to：
When the current characteristic value in the first list is present in the second list, looked into the second list
The next characteristic value looked in the first list.
Preferably, it is described when the current characteristic value when in the first list is not present in the second list
Second object storage device is replicated from first object storage device after the corresponding data of the current characteristic value, is also wrapped
Include：
The corresponding data of current characteristic value stored in second object storage device are verified to deposit with first object
Whether consistent store up corresponding data in equipment.
In addition, to achieve the above object, the present invention also provides a kind of object storage remote copy system, including：
First generation module, for according to each data and its characteristic value stored in the first object storage device, generation
First list；
Second generation module, for according to each data and its characteristic value stored in the second object storage device, generation
Second list；
Searching modul, for searching each characteristic value in the first list in the second list；
Replication module, for when the current characteristic value in the first list is not present in the second list, institute
State the second object storage device and the corresponding data of the current characteristic value are replicated from first object storage device.
Preferably, the data are file.
Preferably, the data be by each file declustering into several objects.
Preferably, the searching modul is further used for：Described in being present in when the current characteristic value in the first list
When in second list, next characteristic value in the first list is searched in the second list.
Preferably, the object storage remote copy system also includes：
Correction verification module, the corresponding data of current characteristic value stored for verifying in second object storage device and institute
Whether consistent state corresponding data in the first object storage device.
In the inventive solutions, according to each data and its characteristic value stored in the first object storage device,
First list is generated, according to each data and its characteristic value stored in the second object storage device, second list is generated, in institute
The each characteristic value searched in second list in the first list is stated, when the current characteristic value in the first list is not present
When in the second list, second object storage device replicates the current spy from first object storage device
The corresponding data of value indicative, therefore, by way of characteristic value is compared, you can will be not stored in second object storage device
Data copy in time in second object storage device, advantageously accounting for data in storage device cannot be standby in time
The technical problem of part.
Brief description of the drawings
Fig. 1 is the schematic flow sheet that object of the present invention stores remote copy method first embodiment；
Fig. 2 is the schematic flow sheet that object of the present invention stores the embodiment of remote copy method the 5th；
Fig. 3 is the high-level schematic functional block diagram that object of the present invention stores remote copy system first embodiment；
Fig. 4 is the high-level schematic functional block diagram that object of the present invention stores the embodiment of remote copy system the 5th.
The object of the invention is realized, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
It should understand, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
The present invention provides a kind of object storage remote copy method.
Referring to Fig. 1, to achieve the above object, the first embodiment of the present invention provides a kind of object storage remote copy side
Method, comprises the following steps：
Step S10, according to each data and its characteristic value stored in the first object storage device, generates first list；
Step S20, according to each data and its characteristic value stored in the second object storage device, generates second list；
Step S30, searches each characteristic value in the first list in the second list；
Step S40, when the current characteristic value in the first list is not present in the second list, described second
Object storage device replicates the corresponding data of the current characteristic value from first object storage device.
In the inventive solutions, according to each data and its characteristic value stored in the first object storage device,
First list is generated, according to each data and its characteristic value stored in the second object storage device, second list is generated, in institute
The each characteristic value searched in second list in the first list is stated, when the current characteristic value in the first list is not present
When in the second list, second object storage device replicates the current spy from first object storage device
The corresponding data of value indicative, therefore, by way of characteristic value is compared, you can will be not stored in second object storage device
Data copy in time in second object storage device, advantageously accounting for data in storage device cannot be standby in time
The technical problem of part.
In the specific implementation, the function of first object storage device and second object storage device can be mutual
Change, that is to say, that any one in first object storage device and second object storage device can be as depositing
Store up equipment, another as the replicate data from the storage device copying equipment.
In the present embodiment, first object storage device is source object storage device, and the second object storage is set
Standby is client object storage device, is completed once after complete characteristic value comparison, the role of the two is replaceable, for example,
Each characteristic value in the second list is searched in the first list；When the current characteristic value in the second list is not deposited
When being in the first list, first object storage device replicates described current from second object storage device
The corresponding data of characteristic value.
First object storage device includes at least one source object memory node server, the second object storage
Equipment includes at least one synchronous end object storage nodes server.Deposited in source object memory node server and synchronous end object
At least one, each constituency node server is as bridgehead server in storage node server, first object storage device and institute
State the second object storage device and be respectively equipped with least one bridgehead server, the bridgehead server is used in first object
Replicate data between storage device and second object storage device, bridgehead server can be object storage nodes service
Device.
In view of when replicating heap file, having larger amount of calculation, many bridgehead servers can be achieved and are replicated,
Multiple bridgehead servers synchronous different file or object respectively are made using balanced way, duplicating efficiency is improved.
It is preferred that, during using many bridgehead servers, the bridgehead server that synchronous end object storage and source object are stored
Quantity should be identical.
It is preferred that, after the completion of single file or object synchronization, lead between the synchronous storage of end object and source object storage
Cross characteristic value to be compared, it is ensured that the uniformity of data.
First object storage device and second object storage device communication connection.Specifically, each source
Object storage nodes and each synchronous end object storage nodes are realized by gateway device and communicated to connect, to realize data
Transmission, it is possible to realize long-range data duplication between the source object storage device and client object storage device.
The gateway device includes but is not limited to three-tier switch, router, fire wall.First object storage device
Communication connection mode between second object storage device includes but is not limited to wide area network (WAN) or LAN (LAN).
First object storage device and second object storage device are same object storage device.Carrying out
Remote copy can use the mode that the file is deleted again or object is deleted again.
Object based on the present invention stores the first embodiment of remote copy method, object storage remote copy of the invention
In the second embodiment of method, the data are file.
Correspondingly, when the data are file, the step S10, including：
Step S11, according to each file and its characteristic value stored in the first object storage device, generates first list；
The step S20, including：
Step S21, according to each file and its characteristic value stored in the second object storage device, generates second list；
The step S40, including：
Step S41, when the current characteristic value in the first list is not present in the second list, described second
Object storage device replicates the corresponding file of the current characteristic value from first object storage device.
In the present embodiment, the data in first object storage device and second object storage device be all with
The form of single file is stored.
Using the combination of the time of data and index as the characteristic value, before data duplication is carried out, the client
Respective listed files is first generated between object storage device and source object storage device, is carried out successively by both listed files
The comparison of file characteristic value, when not having the file of this feature value in client object storage device, you can replicate this document.
Object based on the present invention stores the first embodiment of remote copy method, object storage remote copy of the invention
In the 3rd embodiment of method, the data be by each file declustering into several objects.
Correspondingly, when the data are object, the step S10, including；
Step S12, according to each object and its characteristic value stored in the first object storage device, generates first list；
The step S20, including：
Step S22, according to each object and its characteristic value stored in the second object storage device, generates second list；
The step S40, including：
Step S42, when the current characteristic value in the first list is not present in the second list, described second
Object storage device replicates the corresponding object of the current characteristic value from first object storage device.
When the data are file, carry out after the characteristic value lookup, changed even if only having made part in a file,
Also complete file can be copied in second object storage device, causes the waste of doubling time.
In the present embodiment, the data stored in first object storage device and second object storage device are
Object, can also be based on second embodiment, before step S11, be by the file declustering in each first object storage device
Several objects, after step s 11, list object are converted to by the first list.Before step S21, by each
File declustering in two object storage devices is several objects, after step s 21, the second list is converted into object
List.
Now, when each file, which has only made part, to be changed, only the corresponding object in the part of modification can be replicated,
Effectively to save doubling time.
Any one of the first embodiment of object storage remote copy method based on the present invention into 3rd embodiment,
In the fourth embodiment of the object storage remote copy method of the present invention, after step S30, in addition to：
Step S50, when the current characteristic value in the first list is present in the second list, described second
Next characteristic value in the first list is searched in list.
When the current characteristic value in the first list is present in the second list, it is not necessary to lose time to carry out
The corresponding data of current characteristic value are replicated.Next characteristic value in the first list is searched in the second list,
That is, needing to be compared one by one according to certain order to each characteristic value among the first list, this sequentially may be used
Set, be not limited herein with any as needed.
Referring to Fig. 2, the first embodiment of the object storage remote copy method based on the present invention is into 3rd embodiment
Any one, in the 5th embodiment of object storage remote copy method of the invention, after step S40, in addition to：
Step S60, verifies the corresponding data of current characteristic value that are stored in second object storage device and described the
Whether corresponding data are consistent in one object storage device.
After data duplication is completed, in addition it is also necessary to which whether verification data is replicated succeeds.In the present embodiment, verification mode can be with
Have a variety of, for example, can be by judging that the current characteristic value stored in second object storage device is corresponding than size of data
Data it is whether consistent with corresponding data in first object storage device, can also be by the head and the tail byte of comparison data
Judged.
In addition, referring to Fig. 3, to achieve the above object, it is long-range that the first embodiment of the present invention provides a kind of object storage
Dubbing system, including：
First generation module 10, it is raw for according to each data and its characteristic value stored in the first object storage device
Into first list；
Second generation module 20, it is raw for according to each data and its characteristic value stored in the second object storage device
Into second list；
Searching modul 30, for searching each characteristic value in the first list in the second list；
Replication module 40, for when the current characteristic value in the first list is not present in the second list,
Second object storage device replicates the corresponding data of the current characteristic value from first object storage device.
In the specific implementation, the function of first object storage device and second object storage device can be mutual
Change, that is to say, that any one in first object storage device and second object storage device can be as depositing
Store up equipment, another as the replicate data from the storage device copying equipment.
In the present embodiment, first object storage device is source object storage device, and the second object storage is set
Standby is client object storage device, is completed once after complete characteristic value comparison, the role of the two is replaceable, for example,
Each characteristic value in the second list is searched in the first list；When the current characteristic value in the second list is not deposited
When being in the first list, first object storage device replicates described current from second object storage device
The corresponding data of characteristic value.
First object storage device includes at least one source object memory node server, the second object storage
Equipment includes at least one synchronous end object storage nodes server.Deposited in source object memory node server and synchronous end object
At least one, each constituency node server is as bridgehead server in storage node server, first object storage device and institute
State the second object storage device and be respectively equipped with least one bridgehead server, the bridgehead server is used in first object
Replicate data between storage device and second object storage device, bridgehead server can be object storage nodes service
Device.
In view of when replicating heap file, having larger amount of calculation, many bridgehead servers can be achieved and are replicated,
Multiple bridgehead servers synchronous different file or object respectively are made using balanced way, duplicating efficiency is improved.
It is preferred that, during using many bridgehead servers, the bridgehead server that synchronous end object storage and source object are stored
Quantity should be identical.
It is preferred that, after the completion of single file or object synchronization, lead between the synchronous storage of end object and source object storage
Cross characteristic value to be compared, it is ensured that the uniformity of data.
First object storage device and second object storage device communication connection.Specifically, each source
Object storage nodes and each synchronous end object storage nodes are realized by gateway device and communicated to connect, to realize data
Transmission, it is possible to realize long-range data duplication between the source object storage device and client object storage device.
The gateway device includes but is not limited to three-tier switch, router, fire wall.First object storage device
Communication connection mode between second object storage device includes but is not limited to wide area network (WAN) or LAN (LAN).
First object storage device and second object storage device are same object storage device.Carrying out
Remote copy can use the mode that the file is deleted again or object is deleted again.
Object based on the present invention stores the first embodiment of remote copy system, object storage remote copy of the invention
In the second embodiment of system, the data are file.
Correspondingly, when the data are file, first generation module 10 according to the first object specifically for storing
The each file and its characteristic value stored in equipment, generates first list；
Second generation module 20 is specifically for according to each file stored in the second object storage device and its spy
Value indicative, generates second list；
The replication module 40 is specifically for when the current characteristic value in the first list is not present in the secondary series
When in table, second object storage device replicates the corresponding text of the current characteristic value from first object storage device
Part.
In the present embodiment, the data in first object storage device and second object storage device be all with
The form of single file is stored.
Using the combination of the time of data and index as the characteristic value, before data duplication is carried out, the client
Respective listed files is first generated between object storage device and source object storage device, is carried out successively by both listed files
The comparison of file characteristic value, when not having the file of this feature value in client object storage device, you can replicate this document.
Object based on the present invention stores the first embodiment of remote copy system, object storage remote copy of the invention
In the 3rd embodiment of system, the data be by each file declustering into several objects.
Correspondingly, when the data are object, first generation module 10 according to the first object specifically for storing
The each object and its characteristic value stored in equipment, generates first list；
Second generation module 20 is specifically for according to each object stored in the second object storage device and its spy
Value indicative, generates second list；
The replication module 40 is specifically for when the current characteristic value in the first list is not present in the secondary series
When in table, it is corresponding right that second object storage device replicates the current characteristic value from first object storage device
As.
When the data are file, carry out after the characteristic value lookup, changed even if only having made part in a file,
Also complete file can be copied in second object storage device, causes the waste of doubling time.
In the present embodiment, the data stored in first object storage device and second object storage device are
Object, can also be based on second embodiment, before step S11, be by the file declustering in each first object storage device
Several objects, after step s 11, list object are converted to by the first list.Before step S21, by each
File declustering in two object storage devices is several objects, after step s 21, the second list is converted into object
List.
Now, when each file, which has only made part, to be changed, only the corresponding object in the part of modification can be replicated,
Effectively to save doubling time.
Any one of the first embodiment of object storage remote copy system based on the present invention into 3rd embodiment,
In the fourth embodiment of the object storage remote copy system of the present invention, the searching modul 30 is further used for：When described
When current characteristic value in one list is present in the second list, searched in the second list in the first list
Next characteristic value.
When the current characteristic value in the first list is present in the second list, it is not necessary to lose time to carry out
The corresponding data of current characteristic value are replicated.Next characteristic value in the first list is searched in the second list,
That is, needing to be compared one by one according to certain order to each characteristic value among the first list, this sequentially may be used
Set, be not limited herein with any as needed.
Referring to Fig. 4, the first embodiment of the object storage remote copy system based on the present invention is into 3rd embodiment
Any one, in the 5th embodiment of object storage remote copy system of the invention, the object storage remote copy system
System also includes：
Correction verification module 50, the corresponding data of current characteristic value stored for verifying in second object storage device with
Whether corresponding data are consistent in first object storage device.
After data duplication is completed, in addition it is also necessary to which whether verification data is replicated succeeds.In the present embodiment, verification mode can be with
Have a variety of, for example, can be by judging that the current characteristic value stored in second object storage device is corresponding than size of data
Data it is whether consistent with corresponding data in first object storage device, can also be by the head and the tail byte of comparison data
Judged.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of object stores remote copy method, it is characterised in that comprise the following steps：
According to each data and its characteristic value stored in the first object storage device, first list is generated；
According to each data and its characteristic value stored in the second object storage device, second list is generated；
Each characteristic value in the first list is searched in the second list；
When the current characteristic value in the first list is not present in the second list, second object storage device
The corresponding data of the current characteristic value are replicated from first object storage device.
2. object according to claim 1 stores remote copy method, it is characterised in that the data are file.
3. object according to claim 1 stores remote copy method, it is characterised in that the data are by each file
Several objects split into.
4. object as claimed in any of claims 1 to 3 stores remote copy method, it is characterised in that it is described
After searching each characteristic value in the first list in the second list, in addition to：
When the current characteristic value in the first list is present in the second list, institute is searched in the second list
State next characteristic value in first list.
5. object as claimed in any of claims 1 to 3 stores remote copy method, it is characterised in that described to work as
When current characteristic value in the first list is not present in the second list, second object storage device is from described
After replicating the corresponding data of the current characteristic value in first object storage device, in addition to：
The corresponding data of current characteristic value stored in second object storage device are verified to set with the first object storage
Whether corresponding data are consistent in standby.
6. a kind of object stores remote copy system, it is characterised in that including：
First generation module, for according to each data and its characteristic value stored in the first object storage device, generation first
List；
Second generation module, for according to each data and its characteristic value stored in the second object storage device, generation second
List；
Searching modul, for searching each characteristic value in the first list in the second list；
Replication module, for when the current characteristic value in the first list is not present in the second list, described
Two object storage devices replicate the corresponding data of the current characteristic value from first object storage device.
7. object according to claim 6 stores remote copy system, it is characterised in that the data are file.
8. object according to claim 6 stores remote copy system, it is characterised in that the data are by each file
Several objects split into.
9. the object storage remote copy system according to any one in claim 6 to 8, it is characterised in that described to look into
Module is looked for be further used for：When the current characteristic value in the first list is present in the second list, described
Next characteristic value in the first list is searched in two lists.
10. the object storage remote copy system according to any one in claim 6 to 8, it is characterised in that described right
As storage remote copy system also includes：
Correction verification module, the corresponding data of current characteristic value stored for verifying in second object storage device and described the
Whether corresponding data are consistent in one object storage device.
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| CN201710094415.3A CN107015887A (en) | 2017-02-21 | 2017-02-21 | Object stores remote copy method and system |
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|---|---|---|---|
| CN201710094415.3A CN107015887A (en) | 2017-02-21 | 2017-02-21 | Object stores remote copy method and system |
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| CN107015887A true CN107015887A (en) | 2017-08-04 |
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Citations (5)
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| CN1457457A (en) * | 2000-06-05 | 2003-11-19 | 米拉林克公司 | Flexible remote data mirroring system and method |
| CN1670709A (en) * | 2004-03-19 | 2005-09-21 | 株式会社日立制作所 | A replicated database system and device executing log data transfer synchronously and database data transfer asynchronously |
| CN104408163A (en) * | 2014-12-05 | 2015-03-11 | 浪潮(北京)电子信息产业有限公司 | Data hierarchical storage method and device |
| CN105653209A (en) * | 2015-12-31 | 2016-06-08 | 浪潮(北京)电子信息产业有限公司 | Object storage data transmitting method and device |
| CN105988890A (en) * | 2015-01-29 | 2016-10-05 | 阿里巴巴集团控股有限公司 | Information backup method and device |
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2017
- 2017-02-21 CN CN201710094415.3A patent/CN107015887A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1457457A (en) * | 2000-06-05 | 2003-11-19 | 米拉林克公司 | Flexible remote data mirroring system and method |
| CN1670709A (en) * | 2004-03-19 | 2005-09-21 | 株式会社日立制作所 | A replicated database system and device executing log data transfer synchronously and database data transfer asynchronously |
| CN104408163A (en) * | 2014-12-05 | 2015-03-11 | 浪潮(北京)电子信息产业有限公司 | Data hierarchical storage method and device |
| CN105988890A (en) * | 2015-01-29 | 2016-10-05 | 阿里巴巴集团控股有限公司 | Information backup method and device |
| CN105653209A (en) * | 2015-12-31 | 2016-06-08 | 浪潮(北京)电子信息产业有限公司 | Object storage data transmitting method and device |
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