CN107332904A - A kind of data migration method, apparatus and system across storage system - Google Patents
A kind of data migration method, apparatus and system across storage system Download PDFInfo
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- CN107332904A CN107332904A CN201710517683.1A CN201710517683A CN107332904A CN 107332904 A CN107332904 A CN 107332904A CN 201710517683 A CN201710517683 A CN 201710517683A CN 107332904 A CN107332904 A CN 107332904A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/563—Data redirection of data network streams
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Abstract
Corresponding storage volume is found the embodiment of the invention discloses a kind of data migration method, apparatus and system across storage system, including according to useful data, and obtains all data messages currently stored in storage volume；Data message is sent to cloud server as data to be backed up and carries out storage backup；Receive the information to be migrated of user's transmission and the ID of target storage system；Information to be migrated and ID are sent to cloud server, so that cloud server finds data to be migrated according to information to be migrated from the data to be backed up stored, and data to be migrated are sent into corresponding target storage system according to ID stored.It can be seen that, the embodiment of the present invention can realize that only migration includes the migration of some storage volume or certain several storage volume of useful data, you can to realize the migration of partial data.The embodiment of the present invention improves the flexibility of system in use, reduces the time needed for data migration process, improves efficiency.
Description
Technical field
The present embodiments relate to technical field of information storage, more particularly to a kind of Data Migration side across storage system
Method, apparatus and system.
Background technology
In the prior art, when changing storage system, it is necessary to which data message useful in original storage system is migrated
Into another storage system, it usually needs after two storage system connections, by each storage volume institute in original storage system
Storage all data message bulk migrations can ensure that into another storage system, just by useful data message migrate to
In another storage system.Due in addition to useful data message, also exist in original storage system it is substantial amounts of, no longer make
Data message, then to the bulk migration of all data messages in data message transition process, takes whole process
It is longer, less efficient, and using dumb.
Therefore, how to provide it is a kind of solve above-mentioned technical problem across the data migration method of storage system, device and be
System turns into the problem of those skilled in the art needs to solve.
The content of the invention
The purpose of the embodiment of the present invention is to provide a kind of data migration method, apparatus and system across storage system, makes
The flexibility of system is improved during, the time needed for data migration process is reduced, improves efficiency.
In order to solve the above technical problems, the embodiments of the invention provide a kind of data migration method across storage system, bag
Include：
Corresponding storage volume is found according to useful data, and obtains all data letter currently stored in the storage volume
Breath；
The data message is sent to cloud server as data to be backed up and carries out storage backup；
Receive the information to be migrated of user's transmission and the ID of target storage system；
The information to be migrated and the ID are sent to the cloud server, so that the cloud server is according to institute
State information to be migrated and find data to be migrated from the data to be backed up stored, and according to the ID by the data to be migrated
Transmission is stored into corresponding target storage system.
Optionally, described send the data message to cloud server as data to be backed up carries out storing backup
Process is specially：
Corresponding bitmap is generated according to the data message；
Each data block for having data is found according to the bitmap, and regard each described data block as data to be backed up
Send to cloud server and carry out storage backup.
Optionally, methods described also includes：
The data to be backed up are sent to during cloud server progress storage backup every time, records and accordingly treats standby
The backup information of number evidence；
Corresponding iteration table is generated according to backup information each described；
The information to be migrated of the reception user transmission and the ID of target storage system process are specially：
Information to be migrated and the target storage of user input that reception user is selected and sent by the iteration table
The ID of system.
Optionally, methods described also includes：
Receive the information to be restored that user is selected and sent by the iteration table；
The information to be restored is sent to the cloud server, so that the cloud server is according to described to be restored
Information finds corresponding data to be restored；
The data to be restored that the cloud server is returned are received, and the data to be restored are subjected to recovery of stomge.
In order to solve the above technical problems, the embodiments of the invention provide a kind of data migration device across storage system, bag
Include：
Acquisition module, for finding corresponding storage volume according to useful data, and obtains currently stored in the storage volume
All data messages；
Sending module, carries out storing standby for the data message to be sent to cloud server as data to be backed up
Part；It is additionally operable to send information to be migrated and ID to the cloud server, so that the cloud server is waited to move according to described in
Move information and find data to be migrated from the data to be backed up stored, and according to the ID by the data to be migrated send to
Stored in corresponding target storage system；
Receiving module, for receiving the information to be migrated of user's transmission and the ID of the target storage system, and is touched
Send out sending module described.
Optionally, the sending module includes：
Generation unit, for generating corresponding bitmap according to the data message；
Searching unit, for finding each data block for having data according to the bitmap；
Transmitting element, carries out storing standby for each described data block to be sent to cloud server as data to be backed up
Part.
Optionally, described device also includes：
Logging modle, for every time by the data to be backed up send to the cloud server carry out storage backup when,
Record the backup information of corresponding data to be backed up；
Generation module, for generating corresponding iteration table according to backup information each described；
Then, the receiving module, for receiving information to be migrated and the institute that user is selected and sent by the iteration table
State the ID of the target storage system of user's input.
Optionally, the receiving module, is additionally operable to receive the letter to be restored that user is selected and sent by the iteration table
Breath；It is additionally operable to receive the data to be restored that the cloud server is returned, and the data to be restored is subjected to recovery of stomge
The sending module, is additionally operable to send the information to be restored to the cloud server, so as to the high in the clouds
Server finds corresponding data to be restored according to the information to be restored.
In order to solve the above technical problems, the embodiments of the invention provide a kind of data mover system across storage system, bag
Include cloud server, target storage system and the data migration device as described above across storage system.
Have the embodiments of the invention provide a kind of data migration method, apparatus and system across storage system, including foundation
Corresponding storage volume is found with data, and obtains all data messages currently stored in storage volume；Using data message as treating
Backup Data sends to cloud server and carries out storage backup；Receive information to be migrated and target storage system that user sends
ID；Information to be migrated and ID are sent to cloud server, so as to cloud server according to information to be migrated from treating for being stored
Data to be migrated are found in Backup Data, and data to be migrated are sent into corresponding target storage system according to ID deposited
Storage.
It can be seen that, current all data messages in the storage volume where useful data are first backed up to cloud by the embodiment of the present invention
Hold on server, the information to be migrated that user sends is sent to cloud server, cloud server is according to the information to be migrated
Corresponding data to be migrated can be found from the data to be backed up stored, and will according to ID corresponding with target storage system
Data to be migrated, which are sent into corresponding target storage system, carries out storage backup, so as to realize the number between two storage systems
According to migration, it is possible to achieve only migration includes the migration of some storage volume or certain several storage volume of useful data, you can with reality
The migration of existing partial data.The embodiment of the present invention improves the flexibility of system in use, reduces Data Migration mistake
Time needed for journey, improve efficiency.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of data migration method across storage system provided in an embodiment of the present invention；
A kind of Fig. 2 data backup bitmap schematic diagrames provided in an embodiment of the present invention；
Fig. 3 is a kind of structural representation of data migration device across storage system provided in an embodiment of the present invention.
Embodiment
The embodiments of the invention provide a kind of data migration method, apparatus and system across storage system, process is being used
In improve the flexibility of system, reduce the time needed for data migration process, improve efficiency.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 shows for a kind of flow of data migration method across storage system provided in an embodiment of the present invention
It is intended to.
This method includes：
S11：Corresponding storage volume is found according to useful data, and obtains all data letter currently stored in storage volume
Breath；
S12：Data message is sent to cloud server as data to be backed up and carries out storage backup；
S13：Receive the information to be migrated of user's transmission and the ID of target storage system；
S14：Information to be migrated and ID are sent to cloud server, so as to cloud server according to information to be migrated from institute
Data to be migrated are found in the data to be backed up of storage, and send data to be migrated to corresponding target storage system according to ID
It is middle to be stored.
It should be noted that former storage system and target storage system log on to cloud service by same cloud account
Device, to be migrated data to be migrated into target storage system from former storage system by Cloud Server.
Specifically, user can find out useful data as needed, former storage system is by the storage volume where useful data
Middle stored all data messages send into cloud server as Backup Data and carry out storage backup, can specifically store
Enter according to the method described above into the bucket of cloud server, and when being backed up every time to the data in some storage volume
Row backup, user can input the ID of information to be migrated and target storage system by former storage system, and former storage system should
Information to be migrated and corresponding ID are sent into Cloud Server, after cloud server to the information to be migrated, from its bucket
Corresponding with the information to be migrated backup data information (namely number to be migrated is found in middle stored all data to be backed up
According to), and target storage system corresponding with the ID is found according to the ID that former storage system is sent, then will corresponding number to be migrated
According to sending to target storage system, target storage system can be achieved across storage after the data to be migrated received are stored
The Data Migration of system.Specifically, target storage system is receiving first data block to be migrated of cloud server transmission
Afterwards, a new storage volume is set up automatically to be used to store first data block to be migrated and each subsequently received number to be migrated
According to block, so as to complete the storage to whole data to be migrated.
It should also be noted that, can be recorded in the embodiment of the present invention when carrying out data to be backed up every time and being backed up
Under each time backup when backup information, and information to be migrated can for represent which time backup backup information, cloud service
Device can find the data message of which time backup according to the information to be migrated, enter corresponding data message as data to be migrated
Row migration.
Further, in above-mentioned S12, the data message is sent to cloud server as data to be backed up and carried out
The process of backup is stored, is specifically as follows：
S111：Corresponding bitmap is generated according to the data message；
S112：Each data block for having data is found according to the bitmap, and each described data block is standby as treating
Number carries out storage backup according to transmission to cloud server.
It should be noted that after all data messages currently stored in some storage volume are determined, can foundation
The data message generates bitmap corresponding with the storage volume, and the bitmap can reflect the phase between each data block in the storage volume
Position relationship is answered, and can be found in which data block by the bitmap and have data, which is Blank data block, and will
Each data block for the data that are stored with is sent as data to be backed up to be stored into cloud server, without that will own
Data block send and stored into cloud server, so as to improve transmission speed.
For example, useful data is document 1, and the document 1 is stored in A storage volume, it is assumed that A storage volume has 10 numbers
Have data according to block, and in wherein 4 data blocks, then using this 4 data blocks as data to be backed up according to corresponding position
Transmission is stored into cloud server.
In addition, can be may include whether in cloud with the status information of record data block, the status information in bitmap
End server in backed up, namely when the data block for the data that are stored with is sent stored into cloud server after,
The status information that the data block has been backed up can be recorded on bitmap in the corresponding position of corresponding with this data block.Specifically, every
Corresponding position just has record on one data bitmap block of backup；If after the first time backup of data message is completed, A is deposited
The data message stored on storage volume has renewal, then, also can be according in now A storage volume when carrying out the process of second of backup
The specific data stored regenerate a bitmap, and the data block transmission that will can be only changed compared with first time backs up
Backed up into cloud server, and now position corresponding with the data block of this backup is remembered in new bitmap
Record, records the status information of the now data block.
Fig. 2 is refer to, Fig. 2 is a kind of data backup bitmap schematic diagram provided in an embodiment of the present invention.For example, standby for the first time
G1, t0 in bitmap during part according to the data message generation stored in A storage volume, such as Fig. 2:1111 corresponding bitmaps, G1,
t0:1111 represent the status information of four data blocks in A storage volume during backup for the first time, and 1111 represent four corresponding data
Block has been backed up in Cloud Server；When the data stored in A storage volume have been changed, then according to the data after change again
G2, t1 in one bitmap of secondary generation, such as Fig. 2:1121 corresponding bitmaps, are now backed up, the 3rd data compared to first time
The data that block (from left to right) is stored are changed, then the data that will be stored are only needed in second of backup procedure more
The data backup of the 3rd data block changed is into Cloud Server, and with number currently stored in the 3rd data block
According to the data that will be stored in the 3rd data block when covering backup for the first time, G2, t1:1121 represent to back up for the second time
Four data blocks are backed up in server beyond the clouds in journey, and the data stored in the 3rd data block are changed
Become, and change once.
Further, this method also includes：
Data to be backed up are sent to during cloud server progress storage backup every time, corresponding data to be backed up are recorded
Backup information；
Corresponding iteration table is generated according to each backup information；
Then, in above-mentioned S13, the information to be migrated of user's transmission and the ID of target storage system process are received, specifically
Can be：
Information to be migrated and the ID of the target storage system of user's input that reception user is selected and sent by iteration table.
It should be noted that the data message stored in former storage system rolls up respective stored is sent to cloud service
When device carries out storage backup, the backup information of this data message backed up can also be recorded.Specifically, will accordingly deposit every time
The data message that is stored is sent in storage volume when being backed up into cloud server, has been obtained and this corresponding position of backup
The status information of each data block recorded in figure and bitmap, will record the bitmap of stateful information as with corresponding and treats standby
Number is according to corresponding backup information.For example, when backing up for the first time, backup information corresponding with the data to be backed up of first time backup
There is the first bitmap of the status information of respective data blocks for record；During second of backup, the data to be backed up with second of backup
For backup information have second bitmaps of status information, etc. of respective data blocks for record.Corresponding first bitmap, second
Bitmap etc. constitutes iteration table.
Specifically, user can select corresponding bitmap according to the iteration table, which time corresponding bitmap can both represent
The backup information of backup, namely corresponding information to be migrated, so that the corresponding bitmap that former storage system is selected by user is obtained
Corresponding information to be migrated, and the information to be migrated is sent into cloud server, so that cloud server is waited to move according to this
Move information and find the corresponding data message of respective backup version, the data message is data to be migrated, and cloud server should
Data to be migrated are sent to be stored into target storage system.
For example, the data message of backup is word document 1 and picture 1, corresponding and the first bitmap for the first time；Second of backup
Data message be word document 1 and video 1, correspondence with the second bitmap, then constitute repeatedly is represented as the first bitmap and second
Figure, if user wants to be migrated in picture 1, can select the corresponding option of the first bitmap in iteration table, further former
Storage system will obtain corresponding information to be migrated by the first bitmap, and the information to be migrated is sent into cloud server,
Cloud server can find the data message of backup for the first time according to the information to be migrated, and the data of first time backup are believed
Breath is as data to be migrated, namely data to be migrated now are word document 1 and picture 1, by the word texts of first time backup
Shelves 1 and picture 1 send and stored into target storage system, to realize the migration of respective backup edition data, due to data
All data in whole storage volume can only be migrated during migration, it is therefore desirable to by data respective backup version to be migrated
In all data migrated, so as to realize the migration to corresponding target data.
Optionally, this method can also include：
Receive the information to be restored that user is selected and sent by iteration table；
Information to be restored is sent to cloud server, treated accordingly so that cloud server is found according to information to be restored
Recover data；
The data to be restored that cloud server is returned are received, and data to be restored are subjected to recovery of stomge.
It should be noted that the data to be restored that can also be specified in the embodiment of the present invention to user are recovered, namely
Same data message can be recovered, be easy to after user deletes because of the data in error will be stored in former storage system,
Target data can be recovered by the Backup Data in backup beyond the clouds server.
Have the embodiments of the invention provide a kind of data migration method, apparatus and system across storage system, including foundation
Corresponding storage volume is found with data, and obtains all data messages currently stored in storage volume；Using data message as treating
Backup Data sends to cloud server and carries out storage backup；Receive information to be migrated and target storage system that user sends
ID；Information to be migrated and ID are sent to cloud server, so as to cloud server according to information to be migrated from treating for being stored
Data to be migrated are found in Backup Data, and data to be migrated are sent into corresponding target storage system according to ID deposited
Storage.
It can be seen that, current all data messages in the storage volume where useful data are first backed up to cloud by the embodiment of the present invention
Hold on server, the information to be migrated that user sends is sent to cloud server, cloud server is according to the information to be migrated
Corresponding data to be migrated can be found from the data to be backed up stored, and will according to ID corresponding with target storage system
Data to be migrated, which are sent into corresponding target storage system, carries out storage backup, so as to realize the number between two storage systems
According to migration, it is possible to achieve only migration includes the migration of some storage volume or certain several storage volume of useful data, you can with reality
The migration of existing partial data.The embodiment of the present invention improves the flexibility of system in use, reduces Data Migration mistake
Time needed for journey, improve efficiency.
Accordingly the embodiment of the invention also discloses a kind of data migration device across storage system, Fig. 2 is specifically refer to,
Fig. 2 is a kind of structural representation of data migration device across storage system provided in an embodiment of the present invention.In above-described embodiment
On the basis of：
The device includes：
Acquisition module 1, for finding corresponding storage volume according to useful data, and obtains institute currently stored in storage volume
There is data message；
Sending module 2, storage backup is carried out for data message to be sent to cloud server as data to be backed up；Also
For information to be migrated and ID to be sent to cloud server, so as to cloud server according to information to be migrated from treating for being stored
Data to be migrated are found in Backup Data, and data to be migrated are sent into corresponding target storage system according to ID deposited
Storage；
Receiving module 3, for receiving the information to be migrated of user's transmission and the ID of target storage system, and triggers transmission mould
Block 2.
Optionally, sending module 2 includes：
Generation unit, for generating corresponding bitmap according to data message；
Searching unit, each data block for having data for being found according to bitmap；
Transmitting element, storage backup is carried out for each data block to be sent to cloud server as data to be backed up.
Optionally, device also includes：
Logging modle, for every time sending data to be backed up to during cloud server progress storage backup, records phase
Answer the backup information of data to be backed up；
Generation module, for generating corresponding iteration table according to each backup information；
Then, receiving module 3, for receiving information to be migrated that user selects and sent by iteration table and user's input
The ID of target storage system.
Optionally, receiving module 3, are additionally operable to receive the information to be restored that user is selected and sent by iteration table；Also use
Recovery of stomge is carried out in the data to be restored for receiving cloud server return, and by data to be restored
Sending module 2, is additionally operable to send information to be restored to cloud server, so that cloud server is according to be restored
Information finds corresponding data to be restored.
It should be noted that the embodiments of the invention provide a kind of data mover system across storage system, using
It can realize that only migration includes the migration of some storage volume or certain several storage volume of useful data in journey, you can with achievement unit
The migration of divided data, so as to improve the flexibility of system, reduces the time needed for data migration process, improves efficiency.
In addition, for the specific introduction for the data migration method across storage system being related in the embodiment of the present invention, please
With reference to above method embodiment, the application will not be repeated here.
On the basis of above-described embodiment, a kind of data mover system across storage system, including cloud server, target
Storage system and the data migration device described above across storage system.
It should be noted that the embodiments of the invention provide a kind of data mover system across storage system, using
It can realize that only migration includes the migration of some storage volume or certain several storage volume of useful data in journey, you can with achievement unit
The migration of divided data, so as to improve the flexibility of system, reduces the time needed for data migration process, improves efficiency.
In addition, for the specific introduction for the data migration method across storage system being related in the embodiment of the present invention, refer to above-mentioned
Embodiment of the method, the application will not be repeated here.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
1. a kind of data migration method across storage system, it is characterised in that including：
Corresponding storage volume is found according to useful data, and obtains all data messages currently stored in the storage volume；
The data message is sent to cloud server as data to be backed up and carries out storage backup；
Receive the information to be migrated of user's transmission and the ID of target storage system；
The information to be migrated and the ID are sent to the cloud server, so that the cloud server is treated according to described in
Migration information finds data to be migrated from the data to be backed up stored, and sends the data to be migrated according to the ID
Stored into corresponding target storage system.
2. the data migration method according to claim 1 across storage system, it is characterised in that described to believe the data
Ceasing the process sent as data to be backed up to cloud server progress storage backup is specially：
Corresponding bitmap is generated according to the data message；
Each data block for having data is found according to the bitmap, and each described data block is sent as data to be backed up
Storage backup is carried out to cloud server.
3. the data migration method according to claim 2 across storage system, it is characterised in that methods described also includes：
The data to be backed up are sent to during cloud server progress storage backup every time, corresponding number to be backed up is recorded
According to backup information；
Corresponding iteration table is generated according to backup information each described；
The information to be migrated of the reception user transmission and the ID of target storage system process are specially：
Information to be migrated and the target storage system of user input that reception user is selected and sent by the iteration table
ID.
4. the data migration method according to claim 3 across storage system, it is characterised in that methods described also includes：
Receive the information to be restored that user is selected and sent by the iteration table；
The information to be restored is sent to the cloud server, so that the cloud server is according to the information to be restored
Find corresponding data to be restored；
The data to be restored that the cloud server is returned are received, and the data to be restored are subjected to recovery of stomge.
5. a kind of data migration device across storage system, it is characterised in that including：
Acquisition module, for finding corresponding storage volume according to useful data, and obtains institute currently stored in the storage volume
There is data message；
Sending module, storage backup is carried out for the data message to be sent to cloud server as data to be backed up；Also
For information to be migrated and ID to be sent to the cloud server, so that the cloud server is according to the information to be migrated
Data to be migrated are found from the data to be backed up stored, and send the data to be migrated to corresponding according to the ID
Stored in target storage system；
Receiving module, for receiving the information to be migrated of user's transmission and the ID of the target storage system, and triggers institute
State sending module.
6. the data migration device according to claim 5 across storage system, it is characterised in that the sending module bag
Include：
Generation unit, for generating corresponding bitmap according to the data message；
Searching unit, for finding each data block for having data according to the bitmap；
Transmitting element, storage backup is carried out for each described data block to be sent to cloud server as data to be backed up.
7. the data migration device according to claim 6 across storage system, it is characterised in that described device also includes：
Logging modle, for every time sending the data to be backed up to during cloud server progress storage backup, remembers
Picture recording answers the backup information of data to be backed up；
Generation module, for generating corresponding iteration table according to backup information each described；
Then, the receiving module, the information to be migrated and the use for selecting and sending by the iteration table for receiving user
The ID of the target storage system of family input.
8. the data migration device according to claim 7 across storage system, it is characterised in that the receiving module, also
For receiving the information to be restored that user is selected and sent by the iteration table；It is additionally operable to receive the cloud server return
Data to be restored, and the data to be restored are subjected to recovery of stomge
The sending module, is additionally operable to send the information to be restored to the cloud server, so as to the cloud service
Device finds corresponding data to be restored according to the information to be restored.
9. a kind of data mover system across storage system, it is characterised in that including cloud server, target storage system and such as
The data migration device across storage system described in claim 5-8 any one.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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