CN109521967A - A kind of moving method and device of data - Google Patents
A kind of moving method and device of data Download PDFInfo
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- CN109521967A CN109521967A CN201811360317.0A CN201811360317A CN109521967A CN 109521967 A CN109521967 A CN 109521967A CN 201811360317 A CN201811360317 A CN 201811360317A CN 109521967 A CN109521967 A CN 109521967A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0646—Horizontal data movement in storage systems, i.e. moving data in between storage devices or systems
- G06F3/0647—Migration mechanisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0674—Disk device
- G06F3/0676—Magnetic disk device
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- Human Computer Interaction (AREA)
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- General Engineering & Computer Science (AREA)
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Abstract
The embodiment of the invention discloses a kind of moving method of data and devices, when there is Data Migration demand, in response to migration request, scans and determine the corresponding mirrored disk of former disk, target data mark to be migrated is carried in the migration request, target data is data currently stored in former disk；Write target data into mirrored disk；It receives the write-in that mirrored disk is sent and completes instruction, the target data in former disk is deleted in triggering, completes migration of the target data from former disk to mirrored disk.In this way, the migration to target data is realized using the disk mirroring function that the operating systems such as UNIX carry, without the setting of the configuration parameter of charging software or complexity, the cost of Data Migration is not only saved, also ensuring Data Migration can reliably complete, and provide more safely effectively Data Migration service for user.
Description
Technical field
The present invention relates to field of computer technology, more particularly to the moving method and device of a kind of data.
Background technique
With the continuous development of information age, provides and in time may be used for personal user or enterprise customer using computer system
The information and service leaned on, bring great convenience to personal user or enterprise customer to a certain extent.Data volume is at present
Exponential trend rises, and large-scale data center is required to carry out Data Migration, on the one hand ensures the reliability of data, on the other hand to the greatest extent
Memory space may be discharged, storage resource is saved.
But existing Data Migration is generally completed using the charging software of exploitation, moving costs is higher, alternatively, using
The other configuration of storage level is completed, and configuration parameter is easily lost so as to cause Data Migration failure even loss of data.
It would therefore be highly desirable to a kind of reliable data migration method is provided, it can be on the basis of lower cost, it is ensured that data
It can be by reliable, safe migration, to effectively maintain complete data for users to use.
Summary of the invention
In order to solve the above-mentioned technical problem, the embodiment of the present invention provides the moving method and device of a kind of data, passes through behaviour
The function of making system itself realizes the safety transfer of data, also can be empty in the storage after migration without carrying out additional configuration
Between in get complete data, user will not be read and use before generate and the data saved impact, thus
Improve the reliability of data storage.
In a first aspect, providing a kind of moving method of data, comprising:
In response to migration request, scans and determine the corresponding mirrored disk of former disk；It is carried in the migration request to be migrated
Target data mark, the target data is data currently stored in the former disk；
The target data is written to the mirrored disk；
It receives the write-in that the mirrored disk is sent and completes instruction, the target data in the former disk is deleted in triggering, complete
Migration at the target data from the former disk to the mirrored disk.
Optionally, this method further include:
Preset the corresponding mirrored disk of the former disk, and the Logical Disk quantity for including according to the former disk
The Logical Disk quantity and space size that the mirrored disk includes are planned with space size；
Mirrored disk after the former disk and the planning is connected to identical interchanger；
The same area of mirrored disk after configuring the former disk and the planning in the interchanger.
Optionally, after instruction is completed in the write-in for receiving the mirrored disk transmission, further includes:
Release the mirror between the former disk and the mirrored disk.
Optionally, the former disk and the mirrored disk belong to the same host.
Optionally, the former disk and the mirrored disk belong to different hosts.
Second aspect additionally provides a kind of moving apparatus of data, comprising:
Scanning element determines the corresponding mirrored disk of former disk for scanning in response to migration request；The migration request
Middle to carry target data mark to be migrated, the target data is data currently stored in the former disk；
Writing unit, for the target data to be written to the mirrored disk；
Unit is deleted, completes instruction for receiving the write-in that the mirrored disk is sent, triggering is deleted in the former disk
Target data, complete migration of the target data from the former disk to the mirrored disk.
Optionally, the device further include:
Planning unit, for presetting the corresponding mirrored disk of the former disk, and according to the former disk packet
The Logical Disk quantity and space size included plans the Logical Disk quantity and space size that the mirrored disk includes；
Connection unit, for the mirrored disk after the former disk and the planning to be connected to identical interchanger；
Configuration unit, for configuring the mirrored disk after the former disk and the planning in the same area of the interchanger
Domain.
Optionally, the device further include:
Lifting unit, for releasing the former magnetic after instruction is completed in the write-in for receiving the mirrored disk transmission
Mirror between disk and the mirrored disk.
Optionally, the former disk and the mirrored disk belong to the same host.
Optionally, the former disk and the mirrored disk belong to different hosts.
In embodiments of the present invention, a kind of moving method of data is provided, it, specifically can be with when there is Data Migration demand
It executes: in response to migration request, scanning and determine the corresponding mirrored disk of former disk, wherein carried in migration request to be migrated
Target data mark, the target data are data currently stored in the former disk；The target data is written to institute
State mirrored disk；It receiving the write-in that the mirrored disk is sent and completes instruction, the target data in the former disk is deleted in triggering,
Complete migration of the target data from the former disk to the mirrored disk.In this way, can be by being in advance storing data
Former disk corresponding mirrored disk is set, target data to be migrated is written in mirrored disk, in write-in mirrored disk
Number of targets can be deleted in former disk, be realized pair using the disk mirroring function that the operating systems such as UNIX carry after the completion
The migration of target data, without charging software or complexity configuration parameter setting, not only saved Data Migration at
This, also ensuring Data Migration can reliably complete, and provide more safely effectively Data Migration service for user.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations recorded in the present invention
Example, for those of ordinary skill in the art, is also possible to obtain other drawings based on these drawings.
Fig. 1 is network system block schematic illustration involved in an application scenarios in the embodiment of the present invention；
Fig. 2 is a kind of flow diagram of the moving method of data provided in an embodiment of the present invention；
Fig. 3 is the flow diagram of the method for setting mirrored disk provided in an embodiment of the present invention；
Fig. 4 is a kind of structural schematic diagram of the moving apparatus of data provided in an embodiment of the present invention.
Specific embodiment
For personal user or enterprise customer, the safety of data and comprehensive particularly significant, and Data Migration
It is to ensure that one of the conventional means that data reliably can be stored and be called.Data Migration, as its name suggests, that is, by data from
Originally the disk for storing the data moves to be stored in other disk, can not only discharge the space of former storage disk, but also
Also ensuring data completely can be found and be called in subsequent use.
Inventor has found that existing data migration method generally comprises two kinds: one is the tools of exploitation
There is the software of Data Migration function, data are migrated, but such software generally requires and collects usage charges, improves data
The input cost of migration；But the other Data Migration of storage level is utilized, by the configuration parameter that setting is complicated, realize to data
, still, often there is the problem of configuration parameter loss, it is not only possible to cause Data Migration to fail, also easily in migration in which
The situation of loss of data being migrated is caused, lower reliability is possessed.
Based on this, in embodiments of the present invention, a kind of moving method of data is provided, when there is Data Migration demand,
It can specifically execute: in response to migration request, scan and determine the corresponding mirrored disk of former disk, wherein carried in migration request
Target data to be migrated, the target data are data currently stored in the former disk；The target data is written
To the mirrored disk；It receives the write-in that the mirrored disk is sent and completes instruction, the target in the former disk is deleted in triggering
Data complete migration of the target data from the former disk to the mirrored disk.
As it can be seen that in embodiments of the present invention, it, will by the way that corresponding mirrored disk is arranged for the former disk of storing data in advance
Target data to be migrated is written in mirrored disk, can be deleted number of targets in former disk after the completion of mirrored disk is written
It removes, realizes the migration to target data using the disk mirroring function that the operating systems such as UNIX carry, it is soft without charging
The setting of the configuration parameter of part or complexity, has not only saved the cost of Data Migration, also ensuring Data Migration can be reliable
It completes, provides more safely effectively Data Migration service for user.
For example, one of the scene of the embodiment of the present invention, can be applied in scene as shown in Figure 1.The scene
In, former disk 10 pre-sets its corresponding mirrored disk 20, and preserves data A in former disk 10.Specific data A's
Transition process may include: when former disk needs to migrate data A, server can by the mark of data A (such as:
The address of data A) it is carried in migration request, after former disk 10 receives migration request, parsing obtains to be carried in migration request
Data A mark, find data A；Data A is written in mirrored disk 20 again, when data A is written mirrored disk 20
After the completion, write-in is sent to former disk 10 complete instruction；At this point, former disk 10 deletes data A from itself memory space, from
And complete the migration to data A.
It should be noted that former disk 10 can correspond to one mirrored disk 20 of setting, multiple mirror images also can be set
Disk 20；Moreover, former disk 10 and mirrored disk 20 can be the disk in same host, the magnetic being also possible in different hosts
Disk is not especially limited in embodiments of the present invention.
It should be noted that carrying disk mirroring function in UNIX operating system, it can use function progress data and move
It moves, still, the scene that the embodiment of the present invention is directed to includes but is not limited to UNIX operating system.
It is understood that above-mentioned scene is only a Sample Scenario provided in an embodiment of the present invention, the embodiment of the present invention
It is not limited to this scene.
With reference to the accompanying drawing, by embodiment come the method and dress of data storage a kind of in the present invention will be described in detail embodiment
The specific implementation set.
Fig. 2 is a kind of flow diagram of the moving method of data provided in an embodiment of the present invention.Referring to fig. 2, this method
It can specifically include:
Step 201, it in response to migration request, scans and determines the corresponding mirrored disk of former disk；It is taken in the migration request
It is identified with target data to be migrated, the target data is data currently stored in the former disk.
It is understood that migration request, for requesting the Data Migration that will be stored in master disk empty to others storage
Between in, when need in master disk carry out Data Migration when, can be using data to be migrated as target data, by target data
Mark (such as address of the target data), which is carried in migration request, is sent to master disk.
It should be noted that in order to improve the reliability of data storage, it can be before step 201, based in advance
Corresponding mirrored disk is arranged in disk, so that when master disk receives migration request, master disk can be by target to be migrated
Data are written in mirrored disk.Wherein, it is the corresponding mirrored disk of master disk setting, can be one, be also possible to more
A, the quantity that mirrored disk is arranged is more, and the reliability of the target data after migration is higher.
When specific implementation, mirrored disk configuration can be carried out according to mode shown in Fig. 3 before step 201, specifically may be used
To include:
Step 301, the corresponding mirrored disk of the former disk is preset, and is patrolled according to what the former disk included
Volume disk quantity and space size plan the Logical Disk quantity and space size that the mirrored disk includes.
Step 302, the mirrored disk after the former disk and the planning is connected to identical interchanger.
Step 303, the same area of mirrored disk after configuring the former disk and the planning in the interchanger.
It is understood that needing to be arranged in order to which data can be effectively migrated in mirrored disk from former disk
The consistent mirrored disk of Logical Disk quantity for including with former disk, and the space size of configuration mirroring disk is also required to and former disk
Space size it is consistent.In this way, planning and the mirrored disk set, can be used to store the data in former disk, it will not
Former data in magnetic disk is caused to occur the problem of migration failure in transition process.
When controlling Data Migration for subsequent server, the corresponding mirror image magnetic of master disk can be scanned in a switch
Disk needs for the mirrored disk after former disk and planning to be connected in identical interchanger.As an example, which can
To be former disk and the identical optical fiber switch of server fiber adapter.
Then, the interchanger that the mirrored disk after can configuring former disk and planning is connected to, after former disk and planning
Mirrored disk configure in the same area, and the corresponding fiber port of mirrored disk is added.
Finally, when can be migrated by follow-up data in order to ensure the mirror between the former disk and mirrored disk of foundation
Using arriving, former disk and mirrored disk can also be carried out to corresponding preservation.
It can be after the operation that corresponding mirror image slave node is arranged for host node be completed, by host node and the standby section of its mirror image
Point is associated, specific interrelational form, such as be can be and be associated with by identical call number, passes through equipment in another example can also be
The corresponding of mark saves association.
It should be noted that the original disk and the mirrored disk can be the disk for belonging to the same host, it can also
To be to belong to the corresponding disk of different hosts；Moreover, on the basis of Data Migration is reliable, in order to save Data Migration at
This, can be that a corresponding mirrored disk is arranged in former disk according to mode for example shown in Fig. 3, still, if will be as far as possible
The reliability that data store after improving Data Migration and migrating, or multiple corresponding mirrored disks are arranged in former disk,
The position of specific mirrored disk and quantity are not especially limited in embodiments of the present invention.
Based on this, step 201 may include: to be somebody's turn to do after master disk receives migration request by parsing in specific implementation
Migration request gets target data mark；Then, on the one hand master disk obtains the target data and identifies corresponding target data,
On the other hand, master disk determine corresponding preservation, the mirrored disk that pre-sets；Then, master disk is based on number of targets
Data command is write according to generation, instruction writes target data into mirrored disk, is that subsequent step 202 and step 203 realize data
Data basis has been accomplished fluently in migration.
Step 202, the target data is written to the mirrored disk.
When specific implementation, master disk generate carry target data write data command after, this can be write data command to
Identified mirrored disk is sent, and instruction mirrored disk stores target data in its memory space.
When mirrored disk, which receives, writes data command, it is possible, firstly, to data command be write by parsing, wherein being carried
Target data；Then, i.e. may be in response to this writes data command to the mirrored disk, which is written to the storage of itself
In space；Then, when target data is written mirrored disk completes, write-in can be generated and complete instruction, and to corresponding master
Disk sends the write-in and completes instruction, and completion is stored on the mirrored disk for informing the corresponding master disk target data.
Step 203, it receives the write-in that the mirrored disk is sent and completes instruction, the target in the former disk is deleted in triggering
Data complete migration of the target data from the former disk to the mirrored disk.
It is understood that knowing after instruction is completed in the write-in that master disk receives mirrored disk transmission in mirror image magnetic
Complete target data being written in disk, then, the target data of itself storage can be deleted in master disk, to release
Itself memory space is put, resource utilization is improved.Target data to be migrated is completely written to mirrored disk and by the number of targets
In the case where deleting from master disk, which can determine that this time migrates target data success, indicate completion pair
Migration of the target data from master disk to mirrored disk.
In this way, the target data in master disk is moved in the corresponding mirrored disk of the master disk, master is not only released
The space resources of disk, improves resource utilization, and ensures when needing using the target data, still can be from other
Mirrored disk in extract and use complete target data, improve data storage performance.
It should be noted that after completing to receive the write-in completion instruction that the mirrored disk is sent, alternatively, deleting institute
After stating the target data in former disk, the embodiment of the present invention can also include: release the former disk and the mirrored disk it
Between mirror.In this way, after completing Data Migration, such as UNIX operating system can store and locate according to data before
Reason mode handles data.
It, can be in this way, realize the migration of storing data according to embodiment shown in Fig. 2 for example for UNIX operating system
Data directly are carried out using image feature to synchronize, and save cost；Also, it is not necessary to which additional software is completed, can effectively subtract
Few set-up time reduces human time's cost, and is more suitable the migration of multi-application system.
As it can be seen that in embodiments of the present invention, a kind of moving method of data is provided, and when there is Data Migration demand, tool
Body can execute: in response to migration request, scanning and determine the corresponding mirrored disk of former disk, wherein carried in migration request to
The target data of migration identifies, and the target data is data currently stored in the former disk；The target data is write
Enter to the mirrored disk；It receives the write-in that the mirrored disk is sent and completes instruction, the mesh in the former disk is deleted in triggering
Data are marked, migration of the target data from the former disk to the mirrored disk is completed.In this way, can be by depositing in advance
Corresponding mirrored disk is arranged in the former disk for storing up data, and target data to be migrated is written in mirrored disk, in write-in mirror
As that can delete number of targets in former disk after the completion of disk, the disk mirroring function of being carried using operating systems such as UNIX is real
The migration to target data is showed, without the setting of the configuration parameter of charging software or complexity, has not only saved data and moved
The cost of shifting, also ensuring Data Migration can reliably complete, and provide more safely effectively Data Migration for user
Service.
Correspondingly, the embodiment of the invention also provides a kind of moving apparatus of data, as shown in figure 4, the device specifically may be used
To include:
Scanning element 401 determines the corresponding mirrored disk of former disk for scanning in response to migration request；The migration
Target data mark to be migrated is carried in request, the target data is data currently stored in the former disk；
Writing unit 402, for the target data to be written to the mirrored disk；
Unit 403 is deleted, completes instruction for receiving the write-in that the mirrored disk is sent, the former disk is deleted in triggering
In target data, complete migration of the target data from the former disk to the mirrored disk.
Optionally, the device further include:
Planning unit, for presetting the corresponding mirrored disk of the former disk, and according to the former disk packet
The Logical Disk quantity and space size included plans the Logical Disk quantity and space size that the mirrored disk includes；
Connection unit, for the mirrored disk after the former disk and the planning to be connected to identical interchanger；
Configuration unit, for configuring the mirrored disk after the former disk and the planning in the same area of the interchanger
Domain.
Optionally, the device further include:
Lifting unit, for releasing the former magnetic after instruction is completed in the write-in for receiving the mirrored disk transmission
Mirror between disk and the mirrored disk.
Optionally, the former disk and the mirrored disk belong to the same host.
Optionally, the former disk and the mirrored disk belong to different hosts.
As it can be seen that in embodiments of the present invention, providing a kind of moving apparatus of data, the migration side of above-mentioned data is utilized
Method can specifically be executed when there is Data Migration demand: in response to migration request, being scanned and determined the corresponding mirror image magnetic of former disk
Disk, wherein target data mark to be migrated is carried in migration request, the target data is currently stored in the former disk
Data；The target data is written to the mirrored disk；It receives the write-in that the mirrored disk is sent and completes instruction, touching
Hair deletes the target data in the former disk, completes the target data from former disk the moving to the mirrored disk
It moves.In this way, target data to be migrated can be write by the way that corresponding mirrored disk is arranged for the former disk of storing data in advance
Enter into mirrored disk, number of targets can be deleted in former disk after the completion of mirrored disk is written, be operated using UNIX etc.
The included disk mirroring function of system realizes the migration to target data, without the configuration ginseng of charging software or complexity
Number setting, has not only saved the cost of Data Migration, also ensuring Data Migration can reliably complete, and provide more for user
Add safely effectively Data Migration service.
As seen through the above description of the embodiments, those skilled in the art can be understood that above-mentioned implementation
All or part of the steps in example method can add the mode of general hardware platform to realize by software.Based on this understanding,
Technical solution of the present invention can be embodied in the form of software products, which can store is situated between in storage
In matter, such as read-only memory (English: read-only memory, ROM)/RAM, magnetic disk, CD etc., including some instructions to
So that a computer equipment (can be the network communication equipments such as personal computer, server, or router) executes
Method described in certain parts of each embodiment of the present invention or embodiment.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for device reality
For applying example, since it is substantially similar to the method embodiment, so describing fairly simple, related place is referring to embodiment of the method
Part explanation.The apparatus embodiments described above are merely exemplary, wherein mould as illustrated by the separation member
Block may or may not be physically separated, and the component shown as module may or may not be physics
Module, it can it is in one place, or may be distributed over multiple network units.It can select according to the actual needs
Some or all of the modules therein achieves the purpose of the solution of this embodiment.Those of ordinary skill in the art are not paying creation
Property labour in the case where, it can understand and implement.
The above is only a preferred embodiment of the present invention, it is not intended to limit the scope of the present invention.It should refer to
Out, for those skilled in the art, under the premise of not departing from the present invention, can also make several improvements
And retouching, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (10)
1. a kind of moving method of data characterized by comprising
In response to migration request, scans and determine the corresponding mirrored disk of former disk；Mesh to be migrated is carried in the migration request
Data Identification is marked, the target data is data currently stored in the former disk；
The target data is written to the mirrored disk；
It receives the write-in that the mirrored disk is sent and completes instruction, triggering deletes the target data in the former disk, completes institute
State migration of the target data from the former disk to the mirrored disk.
2. the method according to claim 1, wherein further include:
The Logical Disk quantity and sky for presetting the corresponding mirrored disk of the former disk, and including according to the former disk
Between size plan Logical Disk quantity and space size that the mirrored disk includes；
Mirrored disk after the former disk and the planning is connected to identical interchanger；
The same area of mirrored disk after configuring the former disk and the planning in the interchanger.
3. the method according to claim 1, wherein in the write-in completion for receiving the mirrored disk and sending
After instruction, further includes:
Release the mirror between the former disk and the mirrored disk.
4. the method according to claim 1, wherein the original disk and the mirrored disk belong to the same master
Machine.
5. the method according to claim 1, wherein the original disk and the mirrored disk belong to different masters
Machine.
6. a kind of moving apparatus of data characterized by comprising
Scanning element determines the corresponding mirrored disk of former disk for scanning in response to migration request；It is taken in the migration request
It is identified with target data to be migrated, the target data is data currently stored in the former disk；
Writing unit, for the target data to be written to the mirrored disk；
Unit is deleted, completes instruction for receiving the write-in that the mirrored disk is sent, the mesh in the former disk is deleted in triggering
Data are marked, migration of the target data from the former disk to the mirrored disk is completed.
7. device according to claim 6, which is characterized in that further include:
Planning unit includes for presetting the corresponding mirrored disk of the former disk, and according to the former disk
Logical Disk quantity and space size plan the Logical Disk quantity and space size that the mirrored disk includes；
Connection unit, for the mirrored disk after the former disk and the planning to be connected to identical interchanger；
Configuration unit, for configuring the mirrored disk after the former disk and the planning in the same area of the interchanger.
8. device according to claim 6, which is characterized in that further include:
Lifting unit, for being received after the write-in that the mirrored disk is sent completes instruction described, release the former disk and
Mirror between the mirrored disk.
9. device according to claim 6, which is characterized in that the original disk and the mirrored disk belong to the same master
Machine.
10. device according to claim 6, which is characterized in that it is described original disk and the mirrored disk belong to it is different
Host.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111208947A (en) * | 2020-01-10 | 2020-05-29 | 深信服科技股份有限公司 | Data migration method and device, physical machine, cloud platform and computer storage medium |
| CN113657720A (en) * | 2021-07-21 | 2021-11-16 | 新浪网技术(中国)有限公司 | Method, system, medium and equipment for automatically planning CDN server disk |
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