CN106227587A - A kind of band snapshot virtual machine complete machine dynamic migration method and device - Google Patents
A kind of band snapshot virtual machine complete machine dynamic migration method and device Download PDFInfo
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- CN106227587A CN106227587A CN201610573166.1A CN201610573166A CN106227587A CN 106227587 A CN106227587 A CN 106227587A CN 201610573166 A CN201610573166 A CN 201610573166A CN 106227587 A CN106227587 A CN 106227587A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/48—Program initiating; Program switching, e.g. by interrupt
- G06F9/4806—Task transfer initiation or dispatching
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
Abstract
The invention discloses a kind of band snapshot virtual machine complete machine dynamic migration method, including: logical structure between source disk file and snapshot in detection resources magnetic disk of virtual machine, and preserve；After receiving migration order, open the source storage device transmission channel with destination end storage device to transmit the transmission data being made up of source disk file and snapshot；When after the basic data end of transmission in transmission data, according to logical structure logical relation of Restorer varieties magnetic disk of virtual machine in destination end storage device；After basic data is recovered, utilize mirror function with by the dynamic data synchronization in transmission data to the target virtual machine disk in destination end storage device, and current virtual machine running status is switched to destination end storage device by source storage device.The process of band snapshot virtual machine complete machine dynamic migration can be completed by said method.Additionally, invention additionally discloses a kind of band snapshot virtual machine complete machine dynamic migration device, effect is as above.
Description
Technical field
The present invention relates to field of computer technology, particularly relate to a kind of band snapshot virtual machine complete machine dynamic migration method and
Device.
Background technology
Along with development and the rise of cloud computing technology of computer technology and the Internet, in the most increasingly automated, technology
Under the economic environment driven, server virtualization technology has shown huge resource consolidation advantage, by server physical resource
Being abstracted into logical resource, allow a station server become several the most up to a hundred mutually isolated virtual machines, we are no longer limited by
Boundary physically, but allow the hardware such as CPU, internal memory, disk, I/O become " resource pool " that can dynamically manage, thus improve
The utilization rate of resource, simplified system manages, allows the IT change more adaptive faculty to business.
Magnetic disk of virtual machine " snapshot " is that magnetic disk of virtual machine file puts duplicate timely at certain.System crash or system are different
Often, can return to snapshot by use keeps disk file system and system to store.When upgrade application and server and give
The when of they patch installing, the effect of snapshot is particularly important.
In being embodied as, it is sometimes necessary to by band snapshot virtual machine complete machine dynamic migration, but in prior art, lack
Corresponding method, thus have impact on high efficiency and the adaptation ability of server virtualization.
As can be seen here, how to realize band snapshot virtual machine complete machine dynamic migration with improve server virtualization high efficiency with
Adaptation ability is those skilled in the art's problem demanding prompt solutions.
Summary of the invention
It is an object of the invention to provide a kind of band snapshot virtual machine complete machine dynamic migration method and device, be used for realizing band fast
According to virtual machine complete machine dynamic migration to improve high efficiency and the ability of adaptation of server virtualization.
For solving above-mentioned technical problem, the present invention provides a kind of band snapshot virtual machine complete machine dynamic migration method, including:
S10: logical structure between source disk file and snapshot in detection resources magnetic disk of virtual machine, and preserve；
S11: after receiving migration order, opens the source storage device transmission channel with destination end storage device to pass
The defeated transmission data being made up of described source disk file and described snapshot；
S12: when after the basic data end of transmission in described transmission data, according to described logical structure in described destination end
Storage device is recovered the logical relation of described source virtual machine disk；
S13: after described basic data is recovered, utilizes mirror function with by the dynamic number in described transmission data
According to the target virtual machine disk being synchronized in described destination end storage device, and by current virtual machine running status by described source
Storage device switches to destination end storage device.
Preferably, also include: in transmitting described transmission data procedures, regulate the transfer rate of described transmission channel.
Preferably, also include: pointed out described band snapshot virtual machine complete machine dynamic migration process.
A kind of band snapshot virtual machine complete machine dynamic migration device, including:
Module is analyzed in source storage, and in detection resources magnetic disk of virtual machine, the logic between source disk file and snapshot is tied
Structure, and preserve；
Data Migration transport module, for after receiving migration order, opens source storage device and stores with destination end
The transmission data that the transmission channel of equipment is made up of described source disk file and described snapshot with transmission；
Data in magnetic disk logic recovers module, for when after the basic data end of transmission in described transmission data, according to institute
State logical structure in described destination end storage device, recover the logical relation of described source virtual machine disk；
Mirror synchronization module, for after described basic data is recovered, utilizes mirror function with by described biography
Target virtual machine disk in dynamic data synchronization in transmission of data extremely described destination end storage device, and current virtual machine is transported
Row state is switched to destination end storage device by described source storage device.
Preferably, described Data Migration transport module includes data transmission control module, for transmitting described transmission number
The transfer rate of described transmission channel is regulated during according to.
Preferably, also include: migrated reminding module, complete described band snapshot virtual machine complete machine for prompting and dynamically move
Move past journey.
Preferably, module is analyzed in the storage of described source and described mirror synchronization module is integrated in described source storage device
The server at place, described data in magnetic disk logic is recovered module and is integrated in the server at described destination end storage device place.
Band snapshot virtual machine complete machine dynamic migration method provided by the present invention and device, first detection resources disk file with
Logical structure between snapshot, and preserve；Then the basic data logically structure in transmission data is recovered logical relation,
Remaining dynamic data is synchronized by recycling mirror function, completes the mistake of band snapshot virtual machine complete machine dynamic migration with this
Journey.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention, the accompanying drawing used required in embodiment will be done simply below
Introduce, it should be apparent that, the accompanying drawing in describing below is only some embodiments of the present invention, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of a kind of band snapshot virtual machine complete machine dynamic migration method that Fig. 1 provides for the present invention；
Fig. 2 is building-block of logic corresponding to a kind of source storage device that the present invention provides；
Fig. 3 is building-block of logic corresponding to a kind of destination storage device that the present invention provides；
The structure chart of a kind of band snapshot virtual machine complete machine dynamic migration device that Fig. 4 provides for the present invention；
The structure chart of the another kind of band snapshot virtual machine complete machine dynamic migration device that Fig. 5 provides for the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiment wholely.Based on this
Embodiment in invention, those of ordinary skill in the art are not under making creative work premise, and obtained is every other
Embodiment, broadly falls into scope.
The core of the present invention is to provide a kind of band snapshot virtual machine complete machine dynamic migration method and device.
In order to make those skilled in the art be more fully understood that the present invention program, below in conjunction with the accompanying drawings and detailed description of the invention
The present invention is described in further detail.
The flow chart of a kind of band snapshot virtual machine complete machine dynamic migration method that Fig. 1 provides for the present invention.Fig. 2 is the present invention
Building-block of logic corresponding to a kind of source storage device provided.A kind of destination storage device pair that Fig. 3 provides for the present invention
The building-block of logic answered.As it is shown in figure 1, band snapshot virtual machine complete machine dynamic migration method includes:
S10: logical structure between source disk file and snapshot in detection resources magnetic disk of virtual machine, and preserve.
S11: after receiving migration order, opens the source storage device transmission channel with destination end storage device to pass
The defeated transmission data being made up of source disk file and snapshot.
S12: when after the basic data end of transmission in transmission data, extensive in destination end storage device according to logical structure
The logical relation of multiple source virtual machine disk.
S13: after basic data is recovered, utilizes mirror function with by the dynamic data synchronization in transmission data extremely
Target virtual machine disk in destination end storage device, and current virtual machine running status is switched to mesh by source storage device
Mark end storage device.
After receiving migration order (having band snapshot virtual machine complete machine dynamic migration demand), first detection source storage sets
Logical structure between source disk file and snapshot in the source virtual machine disk put, and preserve.As in figure 2 it is shown, source disk is civilian
Part is the inherent data of disk in source storage device, and if not done by beating snapshot, then source disk file is exactly above to move
State data (transmission data are divided into dynamic data and basic data), otherwise, it is simply that basic data.If carried out beating snapshot, then
First snapshot Snap-1 is exactly dynamic data, if making a call to a snapshot again, then first snapshot Snap-1 just becomes basis number
According to, second snapshot Snap-2 is exactly dynamic data, if making a call to a snapshot again, then second snapshot Snap-2 just becomes basis
Data, the 3rd snapshot Snap-3 is exactly dynamic data, by that analogy.As can be seen here, dynamically move at band snapshot virtual machine complete machine
Always with the presence of dynamic data and basic data during shifting.
The preparation before completing migration is equivalent to, if now receiving migration order after having detected logical structure
After, open the transmission channel of source storage device and destination end storage device.
In being embodied as, dynamic data is different with the moving method of basic data, and the moving method of basic data is permissible
It is directly transmission, but the moving method of dynamic data needs to utilize mirror function.The migration of dynamic data can not directly be adopted
By the mode read, need to utilize mirror function to synchronize.
First being by the transmission of basic data, the transmission of basic data here can directly read source storage device
Data in magnetic disk, after basic data end of transmission, the logical structure preserved according to step S10 is extensive in destination end storage device
The logical relation of multiple source virtual machine disk, will all basic data place according to original structure.
Then, utilize mirror function, by the target virtual machine disk in dynamic data synchronization to destination end storage device.
As shown in Figures 2 and 3, the building-block of logic phase that destination end storage device is corresponding building-block of logic is corresponding with source storage device
With, only in this way guarantee transmission data are the most chaotic.
Now, complete whole transition processes, owing to current virtual machine running status is still arranged in source storage,
Accordingly, it would be desirable to current virtual machine running status is switched to destination end storage device by source storage device.
As one preferred embodiment, also include: in transmitting described transmission data procedures, regulate transmission channel
Transfer rate.
In transmitting procedure, need to regulate at any time the transfer rate of transmission channel, avoid high speed data transfer with this, take
Physical server upper layer network I/O proportion is excessive, and affects physical server performance.It is understood that transfer rate is how
Depending on adjusting the running status needed according to physical server upper layer network, the present invention repeats no more.
As one preferred embodiment, also include: pointed out band snapshot virtual machine complete machine dynamic migration process.
Owing to above-mentioned steps needs certain execution time, in order to allow user recognize entering of transition process in time
Degree, exports information after transition process completes and has carried out complete with prompting user's transition process.
A kind of band snapshot virtual machine complete machine dynamic migration method that the present embodiment provides, first detection resources disk file are with fast
Logical structure between according to, and preserve；Then the basic data logically structure in transmission data is recovered logical relation, then
Utilize mirror function that remaining dynamic data is synchronized, complete the mistake of band snapshot virtual machine complete machine dynamic migration with this
Journey.
The structure chart of a kind of band snapshot virtual machine complete machine dynamic migration device that Fig. 4 provides for the present invention.As shown in Figure 4,
Band snapshot virtual machine complete machine dynamic migration device includes:
Module 10 is analyzed in source storage, and in detection resources magnetic disk of virtual machine, the logic between source disk file and snapshot is tied
Structure, and preserve；
Data Migration transport module 11 is analyzed module 10 with source storage and is connected, for, after receiving migration order, opening
Open the source storage device transmission channel with destination end storage device to transmit the transmission number being made up of source disk file and snapshot
According to；
Data in magnetic disk logic is recovered module 12 and is connected with Data Migration transport module 11, for when the basis in transmission data
After data end of transmission, according to logical structure logical relation of Restorer varieties magnetic disk of virtual machine in destination end storage device；
Mirror synchronization module 13 recovers module 12 with data in magnetic disk logic and is connected, for being recovered when basic data
After, utilize mirror function with by the target virtual machine magnetic in the dynamic data synchronization in transmission data to destination end storage device
Dish, and current virtual machine running status is switched to destination end storage device by source storage device.
After receiving migration order (having band snapshot virtual machine complete machine dynamic migration demand), first detection source storage sets
Logical structure between source disk file and snapshot in the source virtual machine disk put, and preserve.As in figure 2 it is shown, source disk is civilian
Part is the inherent data of disk in source storage device, and if not done by beating snapshot, then source disk file is exactly above to move
State data (transmission data are divided into dynamic data and basic data), otherwise, it is simply that basic data.If carried out beating snapshot, then
First snapshot Snap-1 is exactly dynamic data, if making a call to a snapshot again, then first snapshot Snap-1 just becomes basis number
According to, second snapshot Snap-2 is exactly dynamic data, if making a call to a snapshot again, then second snapshot Snap-2 just becomes basis
Data, the 3rd snapshot Snap-3 is exactly dynamic data, by that analogy.As can be seen here, dynamically move at band snapshot virtual machine complete machine
Always with the presence of dynamic data and basic data during shifting.
The preparation before completing migration is equivalent to, if now receiving migration order after having detected logical structure
After, open the transmission channel of source storage device and destination end storage device.
In being embodied as, dynamic data is different with the moving method of basic data, and the moving method of basic data is permissible
It is directly transmission, but the moving method of dynamic data needs to utilize mirror function.The migration of dynamic data can not directly be adopted
By the mode read, need to utilize mirror function to synchronize.
First being by the transmission of basic data, the transmission of basic data here can directly read source storage device
Data in magnetic disk, after basic data end of transmission, empty according to the logical structure preserved Restorer varieties in destination end storage device
The logical relation of plan machine disk, will all basic data place according to original structure.
Then, utilize mirror function, by the target virtual machine disk in dynamic data synchronization to destination end storage device.
As shown in Figures 2 and 3, the building-block of logic phase that destination end storage device is corresponding building-block of logic is corresponding with source storage device
With, only in this way guarantee transmission data are the most chaotic.
Now, complete whole transition processes, owing to current virtual machine running status is still arranged in source storage,
Accordingly, it would be desirable to current virtual machine running status is switched to destination end storage device by source storage device.
A kind of band snapshot virtual machine complete machine dynamic migration device that the present embodiment provides, first detection resources disk file are with fast
Logical structure between according to, and preserve；Then the basic data logically structure in transmission data is recovered logical relation, then
Utilize mirror function that remaining dynamic data is synchronized, complete the mistake of band snapshot virtual machine complete machine dynamic migration with this
Journey.
The structure chart of the another kind of band snapshot virtual machine complete machine dynamic migration device that Fig. 5 provides for the present invention.Preferably, number
Data transmission control module 110 is included according to migrating transport module, logical for regulation transmission in transmitting described transmission data procedures
The transfer rate in road.
Preferably, also include: migrated reminding module 14, complete band snapshot virtual machine complete machine dynamic migration for prompting
Process.It is understood that migrated reminding module 14 can be 2, it is integrated in the server at source storage device place,
Data in magnetic disk logic is recovered module and is integrated in the server at destination end storage device place.
Preferably, source storage is analyzed module 10 and mirror synchronization module 13 and is integrated in the clothes at source storage device place
Business device, data in magnetic disk logic is recovered module 12 and is integrated in the server at destination end storage device place.
Owing to the embodiment of device part is the most corresponding with the embodiment of method part, therefore the embodiment of device part please
See the description of the embodiment of method part, wouldn't repeat here.
Above band snapshot virtual machine complete machine dynamic migration method provided by the present invention and device are described in detail.
In description, each embodiment uses the mode gone forward one by one to describe, and what each embodiment stressed is with other embodiments not
Same part, between each embodiment, identical similar portion sees mutually.For device disclosed in embodiment, due to it
Corresponding to the method disclosed in Example, so describe is fairly simple, relevant part sees method part and illustrates.Should
Point out, for those skilled in the art, under the premise without departing from the principles of the invention, it is also possible to this
Bright carrying out some improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Professional further appreciates that, in conjunction with the unit of each example that the embodiments described herein describes
And algorithm steps, it is possible to electronic hardware, computer software or the two be implemented in combination in, in order to clearly demonstrate hardware and
The interchangeability of software, the most generally describes composition and the step of each example according to function.These
Function performs with hardware or software mode actually, depends on application-specific and the design constraint of technical scheme.Specialty
Technical staff specifically should can be used for using different methods to realize described function to each, but this realization should not
Think beyond the scope of this invention.
The method described in conjunction with the embodiments described herein or the step of algorithm can direct hardware, processor be held
The software module of row, or the combination of the two implements.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, depositor, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Claims (7)
1. a band snapshot virtual machine complete machine dynamic migration method, it is characterised in that including:
Logical structure between source disk file and snapshot in detection resources magnetic disk of virtual machine, and preserve；
After receiving migration order, open source storage device with the transmission channel of destination end storage device to transmit by described
The transmission data that source disk file and described snapshot are constituted；
When after the basic data end of transmission in described transmission data, according to described logical structure in described destination end storage device
The logical relation of middle recovery described source virtual machine disk；
After described basic data is recovered, utilize mirror function with by the dynamic data synchronization in described transmission data extremely
Target virtual machine disk in described destination end storage device, and by current virtual machine running status by described source storage device
Switch to destination end storage device.
Band snapshot virtual machine complete machine dynamic migration method the most according to claim 1, it is characterised in that also include: passing
Defeated described transmission data procedures regulates the transfer rate of described transmission channel.
Band snapshot virtual machine complete machine dynamic migration method the most according to claim 1, it is characterised in that also include: prompting
Complete described band snapshot virtual machine complete machine dynamic migration process.
4. a band snapshot virtual machine complete machine dynamic migration device, it is characterised in that including:
Module is analyzed in source storage, logical structure between source disk file and snapshot in detection resources magnetic disk of virtual machine, and
Preserve；
Data Migration transport module, for, after receiving migration order, opening source storage device and destination end storage device
Transmission channel with the transmission data that are made up of described source disk file and described snapshot of transmission；
Data in magnetic disk logic recovers module, for when, after the basic data end of transmission in described transmission data, patrolling described in foundation
Collect structure in described destination end storage device, recover the logical relation of described source virtual machine disk；
Mirror synchronization module, for after described basic data is recovered, utilizes mirror function with by described transmission number
Target virtual machine disk in dynamic data synchronization according to extremely described destination end storage device, and current virtual machine is run shape
State is switched to destination end storage device by described source storage device.
Band snapshot virtual machine complete machine dynamic migration device the most according to claim 4, it is characterised in that described Data Migration
Transport module includes data transmission control module, for regulating the biography of described transmission channel in transmitting described transmission data procedures
Defeated speed.
Band snapshot virtual machine complete machine dynamic migration device the most according to claim 4, it is characterised in that also include: migrate
Complete reminding module, complete described band snapshot virtual machine complete machine dynamic migration process for prompting.
Band snapshot virtual machine complete machine dynamic migration device the most according to claim 4, it is characterised in that described source stores
Analysis module and described mirror synchronization module are integrated in the server at described source storage device place, and described data in magnetic disk is patrolled
Collect recovery module and be integrated in the server at described destination end storage device place.
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| CN106874066A (en) * | 2017-01-20 | 2017-06-20 | 中兴通讯股份有限公司 | A kind of virtual machine migration method and device, electronic equipment |
| CN107391231A (en) * | 2017-07-31 | 2017-11-24 | 郑州云海信息技术有限公司 | A kind of data migration method and device |
| CN110688200A (en) * | 2019-09-29 | 2020-01-14 | 北京浪潮数据技术有限公司 | Method and device for migrating disk tree of virtual machine on line |
| CN111124615A (en) * | 2019-12-22 | 2020-05-08 | 北京浪潮数据技术有限公司 | Virtual machine migration method, device, equipment and computer readable storage medium |
| CN111125010A (en) * | 2019-12-20 | 2020-05-08 | 北京浪潮数据技术有限公司 | Method, system and equipment for on-line migration of bare disk file |
| CN112181589A (en) * | 2020-09-25 | 2021-01-05 | 苏州浪潮智能科技有限公司 | Optimization method for realizing post-snapshot migration of KVM (Kernel-based virtual machine) based on reflink |
| CN113296716A (en) * | 2021-07-09 | 2021-08-24 | 云宏信息科技股份有限公司 | Virtual machine disk online migration method, computer readable storage medium and computer |
| CN113791870A (en) * | 2021-09-24 | 2021-12-14 | 上海交通大学 | Fine-grained migration method and system for distributed system of WebAssembly virtual machine |
| WO2021259094A1 (en) * | 2020-06-23 | 2021-12-30 | 中兴通讯股份有限公司 | Method and apparatus for migration of virtual machine across cloud platform, and storage medium and electronic apparatus |
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| CN113791870A (en) * | 2021-09-24 | 2021-12-14 | 上海交通大学 | Fine-grained migration method and system for distributed system of WebAssembly virtual machine |
| CN113791870B (en) * | 2021-09-24 | 2024-03-26 | 上海交通大学 | WebAssemble virtual machine distributed system fine granularity migration method and system |
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