CN106874066A - A kind of virtual machine migration method and device, electronic equipment - Google Patents
A kind of virtual machine migration method and device, electronic equipment Download PDFInfo
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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
- G06F9/54—Interprogram communication
- G06F9/541—Interprogram communication via adapters, e.g. between incompatible applications
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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
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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
- G06F9/4843—Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system
- G06F9/485—Task life-cycle, e.g. stopping, restarting, resuming execution
- G06F9/4856—Task life-cycle, e.g. stopping, restarting, resuming execution resumption being on a different machine, e.g. task migration, virtual machine migration
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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
- G06F2009/4557—Distribution of virtual machine instances; Migration and load balancing
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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
- G06F2009/45579—I/O management, e.g. providing access to device drivers or storage
Abstract
The invention discloses a kind of virtual machine migration method and device, electronic equipment, methods described includes：Virtual machine to be migrated is selected in former virtual platform；Obtain former disk node chain information of the virtual machine in the former virtual platform；According to the former disk node chain information, target disk node chain information is configured；Based on the target disk node chain information, each file in the former disk node chain of the virtual machine is changed, the virtual machine is migrated to target virtualization platform from the former virtual platform.
Description
Technical field
The present invention relates to virtual machine migration technology, more particularly to a kind of virtual machine migration method and device, electronic equipment.
Background technology
The organizational constructions such as many enterprises, education, medical treatment have the cloud desktop of oneself.Resource pool cloud data center rank in the early stage
The series of factors such as section, the limitation based on cost ease for maintenance and scheme, may only have selected a kind of more ripe void
Planization scheme.And in stage middle and later periods, in the case where high-performance and solution such as optimize at the various requirement drives, it is necessary to all or
Selectivity by the virtual machine (vm) migration in the former virtual platform in part to new virtual platform.This is related to different virtual platforms
Between virtual machine migration, the migration scheme that presently, there are is using existing Migration tools, mirror image to be derived, and carries out pressure mirror image
Form is changed, the disk mirroring for finally importing after conversion, so as to complete virtual machine (vm) migration between different platform.
Because existing Migration tools can only do merging form conversion to each image file of magnetic disk of virtual machine, that is to say, that
Magnetic disk of virtual machine one image file of each disk correspondence after mirror-image format conversion, each disk is finally with a mirror image
Mode is migrated to new virtual platform, it is impossible to keep former magnetic disk of virtual machine image file in the chain structure of former virtual platform.
The content of the invention
In order to solve the above technical problems, the embodiment of the invention provides a kind of virtual machine migration method and device, electronics set
It is standby.
A kind of virtual machine migration method is the embodiment of the invention provides, methods described includes：
Virtual machine to be migrated is selected in former virtual platform；
Obtain former disk node chain information of the virtual machine in the former virtual platform；
According to the former disk node chain information, target disk node chain information is configured；
Based on the target disk node chain information, each file in the former disk node chain of the virtual machine is carried out
Conversion, the virtual machine is migrated to target virtualization platform from the former virtual platform.
In such scheme, the former disk node chain information for obtaining the virtual machine in the former virtual platform,
Including：
Obtain following information of the virtual machine in the former virtual platform：Number of files in former disk node chain
Store path, the former disk section of each file in form, the former disk node chain of each file in mesh, former disk node chain
The chain relationship of each file in point chain.
It is described according to the former disk node chain information in such scheme, target disk node chain information is configured, including：
According to the former disk node chain information, following information is configured：Number of files, target in target disk node chain
Store path, the target disk section of each file in form, the target disk node chain of each file in disk node chain
The chain relationship of each file in point chain.
In such scheme, according to the former disk node chain information, each text in the target disk node chain is configured
The chain relationship of part, including：
If necessary to be merged at least two files in former disk node chain, it is determined that object to be combined, and
By the object merging to be combined an into file in target disk node chain；
File after chain relationship and the merging based on each file in the former disk node chain, sets up institute
State the chain relationship of each file in target disk node chain.
In such scheme, according to the former disk node chain information, each text in the target disk node chain is configured
The chain relationship of part, including：
If need not be merged to the file in former disk node chain, described in the former disk node chain
File is used as a file in target disk node chain；
Based on the chain relationship of each file in the former disk node chain, set up in the target disk node chain
The chain relationship of each file.
In such scheme, in store path first storage system of correspondence of each file in the former disk node chain
Storage region；Memory block in store path second storage system of correspondence of each file in the target disk node chain
Domain；Wherein, first storage system is identical or different with second storage system.
It is described based on the target disk node chain information in such scheme, to the former disk node chain of the virtual machine
In each file changed, the virtual machine is migrated to target virtualization platform from the former virtual platform, bag
Include：
The form of each file in the target disk node chain, in the former disk node chain of the virtual machine
Each file enter row format conversion；
If necessary to be merged at least two files in former disk node chain, it is determined that object to be combined, and
A file in target disk node chain is merged into after the object to be combined is changed through form；
If need not be merged to the file in former disk node chain, described in the former disk node chain
File is after form conversion as a file in target disk node chain；
The store path of each file in the target disk node chain, to each in target disk node chain
File is stored, and the virtual machine is migrated to target virtualization platform from the former virtual platform.
In such scheme, methods described also includes：
After the completion of configuration target disk node chain information, all files in the former disk node chain of the virtual machine are calculated
Conversion time；
If the conversion time meets pre-conditioned, to each file in the former disk node chain of the virtual machine
Changed, the virtual machine is migrated to target virtualization platform from the former virtual platform.
The embodiment of the present invention additionally provides a kind of virtual machine (vm) migration device, and described device includes：
Select unit, for selecting virtual machine to be migrated in former virtual platform；
Acquiring unit, for obtaining former disk node chain information of the virtual machine in the former virtual platform；
Dispensing unit, for according to the former disk node chain information, configuring target disk node chain information；
Converting unit, for based on the target disk node chain information, in the former disk node chain of the virtual machine
Each file changed, the virtual machine is migrated to target virtualization platform from the former virtual platform.
In such scheme, the acquiring unit, specifically for：The virtual machine is obtained in the former virtual platform
Following information：Form, the former disk node chain of each file in number of files, former disk node chain in former disk node chain
In each file store path, former disk node chain in each file chain relationship.
In such scheme, the dispensing unit, specifically for：According to the former disk node chain information, the following letter of configuration
Breath：Form, the target disk node chain of each file in number of files, target disk node chain in target disk node chain
In each file store path, target disk node chain in each file chain relationship.
In such scheme, the dispensing unit, specifically for：If necessary to at least two texts in former disk node chain
Part is merged, it is determined that object to be combined, and by the object merging to be combined into target disk node chain
Individual file；File after chain relationship and the merging based on each file in the former disk node chain, sets up institute
State the chain relationship of each file in target disk node chain.
In such scheme, the dispensing unit, specifically for：If need not be carried out to the file in former disk node chain
Merge, then using the file in the former disk node chain an as file in target disk node chain；Based on described
The chain relationship of each file in former disk node chain, the chain type of each file set up in the target disk node chain is closed
System.
In such scheme, in store path first storage system of correspondence of each file in the former disk node chain
Storage region；Memory block in store path second storage system of correspondence of each file in the target disk node chain
Domain；Wherein, first storage system is identical or different with second storage system.
In such scheme, the converting unit, specifically for：Each file in the target disk node chain
Form, row format conversion is entered to each file in the former disk node chain of the virtual machine；If necessary to former disk node
At least two files in chain are merged, it is determined that object to be combined, and the object to be combined is changed through form
A file in target disk node chain is merged into afterwards；If need not be merged to the file in former disk node chain,
As a file in target disk node chain after then the file in the former disk node chain is changed through form；Root
According to the store path of each file in the target disk node chain, each file in target disk node chain is deposited
Storage, the virtual machine is migrated to target virtualization platform from the former virtual platform.
In such scheme, described device also includes：
Computing unit, for configuring target disk node chain information after the completion of, calculate the former disk node of the virtual machine
The conversion time of all files in chain；
The converting unit, specifically for：If the conversion time meets pre-conditioned, to the original of the virtual machine
Each file in disk node chain is changed, and the virtual machine is migrated to destination virtual from the former virtual platform
Change platform.
The embodiment of the present invention again provide a kind of electronic equipment, it is characterised in that the electronic equipment include processor and
Memory, be stored with computer program instructions in the memory, when computer program instructions described in the computing device,
The processor is used to perform any one virtual machine migration method described above.
In the technical scheme of the embodiment of the present invention, virtual machine to be migrated is selected in former virtual platform；Obtain institute
State former disk node chain information of the virtual machine in the former virtual platform；According to the former disk node chain information, configuration
Target disk node chain information；Based on the target disk node chain information, in the former disk node chain of the virtual machine
Each file is changed, and the virtual machine is migrated to target virtualization platform from the former virtual platform.Using this
The technical scheme of inventive embodiments, when virtual machine realizes across virtual platform migration, based on increment difference snapping technique institute shape
Into target virtualization platform of the chain structure after migration can still retain, do not influenceed by migration.
Brief description of the drawings
Accompanying drawing generally shows each embodiment discussed herein by way of example and not limitation.
Fig. 1 is existing and improved difference mirror-image format conversion regime contrast schematic diagram；
Fig. 2 is existing virtual machine (vm) migration scheme schematic diagram；
Fig. 3 is the virtual machine (vm) migration scheme schematic diagram for keeping chain relationship；
Fig. 4 is profiles versus figure of the XEN platforms to virtual machine image before and after KVM platform migrations in storage；
Fig. 5 is the schematic flow sheet of the virtual machine migration method of the embodiment of the present invention；
Fig. 6 is that the identical storage of different platform keeps chain type transition graph；
Fig. 7 is that the different storages of different platform keep chain type transition graph；
Fig. 8 is the different storage flexible configuration merge node transition graphs of different platform；
Fig. 9 is the structure composition schematic diagram of the virtual machine (vm) migration device of the embodiment of the present invention.
Specific embodiment
The characteristics of in order to more fully hereinafter understand the embodiment of the present invention and technology contents, below in conjunction with the accompanying drawings to this hair
The realization of bright embodiment is described in detail, appended accompanying drawing purposes of discussion only for reference, not for limiting the embodiment of the present invention.
If virtual machine (vm) migration cannot keep former magnetic disk of virtual machine image file in the chain structure of former virtual platform, this
For 1：N mode virtual machines, can bring problems with after migration：(1) the such as freezing point based on disk incremental snapshot technology
Reduction, chain type clone etc. other correlation functions after the old and new's virtual platform virtual machine (vm) migration cutover, due to the relation of file chain
Structure change all cannot be used normally again；(2) upset virtual machine image file distribution in storage above, cause virtual machine mirror
As file is in high speed solid hard disk (SSD, Solid State Drives) and the irrational distribution of low-speed discs；(3) for carrying
The storage of mirror image is also required to the situation of migration, it is impossible to determines which node does according to distribution of the mirror nodes in original storage and merges
Migration, which node retains chain structure migration, thus cannot be to the corresponding target repository of former mirror nodes flexible configuration；
(4) conventional migration scheme is required for reconfiguring new magnetic disk of virtual machine image file management data in new platform, is in management
Virtual machine rebuild on system uploaded to import new platform former virtual machine merge after mirror image, transition process is cumbersome, takes consumption
Power.
The technical scheme of the embodiment of the present invention, there is provided a kind of virtual machine migration method, using improved difference mirror image lattice
Formula crossover tool come realize between different virtual platforms holding mirror image chain relationship virtual machine (vm) migration.
Fig. 1 is the comparison diagram of original and improved difference mirror-image format conversion regime, as shown in figure 1, for increasing
The chain type virtual machine of difference mirror image is measured, its mirrored disk node chain is followed successively by from father node to child node：grandpa.vhd、
parent.vhd、son.vhd；Wherein, the file attribute of grandpa.vhd and parent.vhd is read-only, the file of son.vhd
Attribute is read-write.The disk file chain of virtual machine is done after form changes according to original Migration tools, father node and child node
A mirror nodes are merged into, i.e. grandpa_parent_son.qcow2 so just changes original chain relationship.And it is sharp
With improved img-convert crossover tools, after conversion step by step is done to file, the magnetic of the virtual machine on target KVM platforms
The chain relationship of disk node chain remains and is from father node to child node：grandpa.qcow2、parent.qcow2、
The chain structure of son.qcow2, so, virtual machine the institute that former XEN platforms are based on increment differential technique is functional can be former
Envelope is motionless to be continuing with target KVM platforms.
Fig. 2 is the virtual machine (vm) migration Organization Chart for not keeping chain relationship, as shown in Fig. 2 not keeping chain relationship to virtual
After machine is migrated, the disk node chain of all virtual machines permeates a node.Fig. 3 is the virtual machine for keeping chain relationship
Migration Organization Chart, as shown in figure 3, after keeping chain relationship to migrate virtual machine, the disk node chain of all virtual machines is removed
The format change of node is for outside qcow2, there is no any change in its disk node chain, so, virtual machine is in original scheme
It is different with its distribution in storage before and after new departure migration.
As shown in figure 4, the virtual machine storied placement of its mirror image in storage before and after new departure migration is constant, in public
The root node of reading location still can be in expensive high-speed disc, and virtual machine itself leaf node alone is placed on low speed
On SAS disks, performance is so both ensure that, again can be with reduces cost.And virtual machine its mirror image before and after the migration of original scheme is being deposited
Storied placement in storage changes completely, and the disk node chain of virtual machine has permeated a node, or namely virtual machine put
In high speed but on expensive SSD disks, otherwise but it is placed on the cheap relatively slow SAS disks of speed, it is impossible to accomplish performance
With taking into account for cost.
The virtual machine migration method of the embodiment of the present invention, can flexibly keep the chain relationship of disk node, and with can
Depending on changing configuration system, below for the technical scheme of the embodiment of the present invention is elaborated：
1. virtual machine is selected：The virtual machine for voluntarily selecting to need to do virtual platform switching is needed according to user first, can
The essential information of the virtual machine, such as extensible markup language (XML, the eXtensible Markup of virtual machine are browsed as needed
Language) the associated detailed information such as configuration, disk node chain.
2. conversion configurations：Then system lists disk image format (namely file format), the node of former virtual machine automatically
Between chain relationship and the information such as each size of node and specific path, disk image format after to migration, section
Chain relationship, node merging and store path between point number, node configure to determine the disk mirroring node after migration
Chain structure and its distribution in storage.
3. Transition Evaluation：System changes institute according to each disk mirroring that the conversion configurations of step 2 voluntarily calculate virtual machine
The time for needing, and judge whether the memory space of target virtualization platform meets condition, it is final to determine Transition Evaluation result.
4. conversion is performed：According to Transition Evaluation result, selection performs or cancels conversion.
Fig. 5 is the schematic flow sheet of the virtual machine migration method of the embodiment of the present invention, as shown in figure 5, methods described includes：
Step 501：Virtual machine to be migrated is selected in former virtual platform.
Step 502：Obtain former disk node chain information of the virtual machine in the former virtual platform.
In the embodiment of the present invention, the former disk node chain letter for obtaining the virtual machine in the former virtual platform
Breath, including：
Obtain following information of the virtual machine in the former virtual platform：Number of files in former disk node chain
Store path, the former disk section of each file in form, the former disk node chain of each file in mesh, former disk node chain
The chain relationship of each file in point chain.
Step 503：According to the former disk node chain information, target disk node chain information is configured.
It is described according to the former disk node chain information in the embodiment of the present invention, configure target disk node chain information, bag
Include：
According to the former disk node chain information, following information is configured：Number of files, target in target disk node chain
Store path, the target disk section of each file in form, the target disk node chain of each file in disk node chain
The chain relationship of each file in point chain.
In such scheme, according to the former disk node chain information, each text in the target disk node chain is configured
The chain relationship of part, including：
If necessary to be merged at least two files in former disk node chain, it is determined that object to be combined, and
By the object merging to be combined an into file in target disk node chain；
File after chain relationship and the merging based on each file in the former disk node chain, sets up institute
State the chain relationship of each file in target disk node chain.
In such scheme, according to the former disk node chain information, each text in the target disk node chain is configured
The chain relationship of part, including：
If need not be merged to the file in former disk node chain, described in the former disk node chain
File is used as a file in target disk node chain；
Based on the chain relationship of each file in the former disk node chain, set up in the target disk node chain
The chain relationship of each file.
Step 504：Based on the target disk node chain information, to each in the former disk node chain of the virtual machine
File is changed, and the virtual machine is migrated to target virtualization platform from the former virtual platform.
In the embodiment of the present invention, store path first storage system of correspondence of each file in the former disk node chain
In storage region；Storage in store path second storage system of correspondence of each file in the target disk node chain
Region；Wherein, first storage system is identical or different with second storage system.
It is described based on the target disk node chain information in the embodiment of the present invention, to the former disk section of the virtual machine
Each file in point chain is changed, and the virtual machine is migrated to target virtualization from the former virtual platform and is put down
Platform, including：
The form of each file in the target disk node chain, in the former disk node chain of the virtual machine
Each file enter row format conversion；
If necessary to be merged at least two files in former disk node chain, it is determined that object to be combined, and
A file in target disk node chain is merged into after the object to be combined is changed through form；
If need not be merged to the file in former disk node chain, described in the former disk node chain
File is after form conversion as a file in target disk node chain；
The store path of each file in the target disk node chain, to each in target disk node chain
File is stored, and the virtual machine is migrated to target virtualization platform from the former virtual platform.
In the embodiment of the present invention, after the completion of configuration target disk node chain information, the former disk section of the virtual machine is calculated
The conversion time of all files in point chain；If the conversion time meets pre-conditioned, to the former magnetic of the virtual machine
Each file in disk node chain is changed, and the virtual machine is migrated to target virtualization from the former virtual platform
Platform.
In such scheme, based on the target disk node chain information, in the former disk node chain of the virtual machine
Each file is changed, and is changed by the img-convert instruments of the embodiment of the present invention.Img-convert instruments
To disk mirroring file using successively conversion regime, VHD file is converted to QCOW2 files step by step, can turn file format
Change that front and rear set membership is constant, reach the purpose for keeping difference mirror image chain relationship.
Wherein, the know-why of img-convert instruments is described below：(1) former image file is verified and obtains basic letter
Breath：The least significant end leaf node file of the magnetic disk of virtual machine image file before the conversion carried in TO and analytic parameter
Metadata information, obtains the parent information of the node, the device number, UUID, deposit position including father node etc.；Then use
Same method is traveled through and accesses all nodes of the whole image file chain of the magnetic disk of virtual machine step by step, it is ensured that the image file chain
On all node files completely exist and metadata verification is normal, while obtaining the sizes of virtual of the disk and the reality of each node
The information such as border size；(2) the target image file of null data area is created：According to target image file after the conversion specified in parameter
The node number of chain, creates the null data area of the qcow2 forms of identical virtual machine size on corresponding target repository
Image file, and the backing-file fields in the qcow2 metadata of each node are changed, the father and son safeguarded between each node is closed
System；(3) node format conversion：Since former mirror image least significant end leaf node, the metadata information of the node file is parsed, obtained
The node file sector distributed intelligence, block size, BATMAP information, BAT positions, BAT quantity, data check information；And according to
BATMAP starts to read the valid data in the VHD image files, and is written to the qcow2 form corresponding node files of target
In data field；Its father node is no longer traversed for data non-existent in this node file to be read out, and directly return
Read successfully and continue；The data content of the deletion for being recorded in this node is based on, it is necessary to synchronously be generated in destination node
The deletion mark of qcow2 forms sector distribution；Data improve the unit of destination node qcow2 mirror images after destination node is written to
Data message, updates valid data distribution and size information；(4) wherein for any number of nodes for needing and changing and merge
Treatment：Since undermost leaf node, valid data are read after parsing metadata information, and be written to the qcow2 of target
In the data field of the corresponding node file of form；For data non-existent in this node file, up traversing needs to close
And top file node, if traversal these nodes in each own valid data, need to be written to file destination
In corresponding data field, union operation is synchronously realized；The data content of the deletion for being recorded in this node, then without up time
Go through, directly synchronously deletion of the generation based on the distribution of qcow2 forms sector is identified in destination node.
The scheme of the embodiment of the present invention is described in further detail with reference to concrete application scene.
Embodiment one：Migration of the virtual machine between the identical storage system of same manufacturer's different platform
Reference picture 6, the present embodiment does detailed explaining to the process step that virtual machine is migrated from XEN platforms to the cutover of KVM platforms
State, the present embodiment is the migration of holding chain relationship of the virtual machine between the same storage system of different platform, including：
1) virtual machine is selected：A virtual machine for needing to do platform migration is selected first under former virtual platform, virtually
The entitled testVM of machine, the navigation button provided by interface, can view XML file, the disk of the virtual machine after click
Etc. essential information.
2) conversion configurations：Then system lists disk node chain information of the virtual machine under former virtual platform automatically,
The virtual machine as shown in this example belongs to chain type virtual machine, and 4 files are contained in former disk node chain, and form is VHD, file reality
Border size is followed successively by 40G, 10G, 5G, 2G from root node to leaf node, and list shows each file node in storage simultaneously
On position, public root node 1 be located at original platform former storage system s1 storages on, general s1 be high speed storing disk, node
Specific path is /storage/s1/1.vhd, and intermediate node 2,3 and leaf node 4 are respectively positioned on the s2 storages of former storage system
On, usual s2 is low-speed discs, and path is /storage/s2/2.vhd ,/storage/s2/3.vhd ,/storage/s2/
4.vhd；According to institute's column information, dividing by the disk mirroring node chain structure after user voluntarily configuration emigration and its in storage
Cloth is, it is necessary to whether configuration node merges, and the thesaurus after migration.Fig. 6 configuration parameters example migration after destination node number still
Be 4, original chain structure kept completely, wherein, root node 1 be changed into after being converted to qcow2 forms from vhd forms A nodes/
Storage/s1/A.qcow2, is still placed on the s1 of former storage system as virtual machine root node, the conversion lattice of intermediate node 2,3
Formula be qcow2 be changed into respectively/storage/s2/B.qcow2 ,/storage/s2/C.qcow2 be still located at source storage s2 on, i.e.,
Storage keeps constant, only does form conversion, and leaf node 4 is changed into D and is placed on i.e./storage/s2/ on the s2 of source storage after changing
D.qcow2, points to its father node C.
3) Transition Evaluation：System is voluntarily calculated changes time-consuming according to needed for 2 step configuration informations.
4) conversion is performed：According to Transition Evaluation result, selection performs or cancels conversion.
Embodiment two：Migration of the virtual machine between same manufacturer's different platform difference storage system
Reference picture 7, the present embodiment does detailed explaining to the process step that virtual machine is migrated from XEN platforms to the cutover of KVM platforms
State, the present embodiment is the migration of holding chain relationship of the virtual machine between the different storages of different platform, including：
1) virtual machine is selected：A virtual machine for needing to do platform migration is selected first under former virtual platform, virtually
The entitled testVM of machine, the navigation button provided by interface, can view the virtual machine XML file, disk etc. after click
Essential information.
2) conversion configurations：Then system lists disk node chain information of the virtual machine under original platform, such as this example automatically
Shown in virtual machine belong to chain type virtual machine, in former disk node chain contain 4 files, form is VHD, file actual size
40G, 10G, 5G, 2G are followed successively by from root node to leaf node, list shows each position of file node in storage simultaneously
Put, public root node 1 is located in the s1 storages of original platform original storage class, general s1 is high speed storing disk, the specific road of node
Footpath is /storage/s1/1.vhd, and intermediate node 2,3 and leaf node 4 are respectively positioned in the s2 storages of former storage system, generally
S2 is low-speed discs, and path is /storage/s2/2.vhd ,/storage/s2/3.vhd ,/storage/s2/4.vhd；According to institute
Column information, by the disk mirroring node chain structure after user voluntarily configuration emigration and its distribution in storage, it is necessary to configure
Whether node merges, and the thesaurus after migration.Destination node number is still for 4 keep completely after the migration of Fig. 7 configuration parameters example
Original chain structure, wherein, root node 1 is changed into A nodes/storage_dest/s1/ after being converted to qcow2 forms from vhd forms
A.qcow2, is still placed on the s1 of target storage system as virtual machine root node, and the format transformation of intermediate node 2,3 is qcow2
It is changed into B, C, is stored in respectively on the s2 of target storage, i.e. ,/storage_dest/s2/B.qcow2 ,/storage_dest/s2/
C.qcow2, leaf node 4 is changed into D and is placed on i.e./storage_dest/s2/D.qcow2 on the s2 of target storage after changing, point to
Its father node C.
3) Transition Evaluation：System is voluntarily calculated according to changing time-consuming needed for 2 step configuration informations, and from XEN platforms to
During KVM platform migrations, whether target storage storage_dest meets condition.
4) conversion is performed：According to Transition Evaluation result, selection performs or cancels conversion.
Embodiment three：Switching of the virtual machine between different vendor's different platform difference storage system
Reference picture 8, the present embodiment does detailed explaining to the process step that virtual machine is migrated from XEN platforms to the cutover of KVM platforms
State, the present embodiment is migration of the virtual machine between the different storages of different platform, and merge the chain type node of redundancy as needed,
Specified target repository is made, specifies which node participates in merging the flexible configuration which node keeps chain type, including：
1) virtual machine is selected：A virtual machine for needing to do platform migration is selected first under former virtual platform, virtually
The entitled testVM of machine, the navigation button provided by interface, can view the virtual machine XML file, disk etc. after click
Essential information.
2) conversion configurations：Then system lists disk node chain information of the virtual machine under original platform, such as this example automatically
Shown in virtual machine belong to chain type virtual machine, in former disk node chain contain 4 files, form is VHD, file actual size
40G, 10G, 5G, 2G are followed successively by from root node to leaf node, list shows each position of file node in storage simultaneously
Put, public root node 1 is located in the s1 storages of original platform original storage class, general s1 is high speed storing disk, the specific road of node
Footpath is /storage/s1/1.vhd, and intermediate node 2,3 and leaf node 4 are respectively positioned in the s2 storages of former storage system, generally
S2 is low-speed discs, and path is /storage/s2/2.vhd ,/storage/s2/3.vhd ,/storage/s2/4.vhd；According to institute
Column information, by the disk mirroring node chain structure after user voluntarily configuration emigration and its distribution in storage, it is necessary to configure
Whether node merges, and the thesaurus after migration.Destination node number is 3 after the migration of Fig. 8 configuration parameters example, wherein, root section
Point 1 is changed into A nodes/storage_dest/s1/A.qcow2 after being converted to qcow2 forms from vhd forms, still as virtual machine
Root node is placed on the s1 of target storage system, and intermediate node 2, and 3 format transformations are placed on target for qcow2 is merged into B node
On the s2 of storage/storage_dest/s2/B.qcow2, and root node A is pointed to, leaf node 4 is changed into C and is placed on target after changing
I.e./storage_dest/s2/C.qcow2 on the s2 of storage, points to middle merge node B.
3) Transition Evaluation：System is voluntarily calculated according to changing time-consuming needed for 2 step configuration informations, and from XEN platforms to
During KVM platform migrations, whether target storage storage_dest meets condition.
4) conversion is performed：According to Transition Evaluation result, selection performs or cancels conversion.
Fig. 9 is the structure composition schematic diagram of the virtual machine (vm) migration device of the embodiment of the present invention, as shown in figure 9, described device
Including：
Select unit 901, for selecting virtual machine to be migrated in former virtual platform；
Acquiring unit 902, for obtaining former disk node chain information of the virtual machine in the former virtual platform；
Dispensing unit 903, for according to the former disk node chain information, configuring target disk node chain information；
Converting unit 904, for based on the target disk node chain information, to the former disk node chain of the virtual machine
In each file changed, the virtual machine is migrated to target virtualization platform from the former virtual platform.
In the embodiment of the present invention, the acquiring unit 902, specifically for：The virtual machine is obtained in the former virtualization
Following information in platform：Form, the former magnetic of each file in number of files, former disk node chain in former disk node chain
The chain relationship of each file in the store path of each file in disk node chain, former disk node chain.
In the embodiment of the present invention, the dispensing unit 903, specifically for：According to the former disk node chain information, configuration
Following information：Form, the target disk of each file in number of files, target disk node chain in target disk node chain
The chain relationship of each file in store path, the target disk node chain of each file in node chain.
In the embodiment of the present invention, the dispensing unit 903, specifically for：If necessary to in former disk node chain extremely
Few two files are merged, it is determined that object to be combined, and by the object merging to be combined into target disk node
A file in chain；Text after chain relationship and the merging based on each file in the former disk node chain
Part, the chain relationship of each file set up in the target disk node chain.
In the embodiment of the present invention, the dispensing unit 903, specifically for：If need not be in former disk node chain
File is merged, then using the file in the former disk node chain an as file in target disk node chain；
Based on the chain relationship of each file in the former disk node chain, each file set up in the target disk node chain
Chain relationship.
In the embodiment of the present invention, store path first storage system of correspondence of each file in the former disk node chain
In storage region；Storage in store path second storage system of correspondence of each file in the target disk node chain
Region；Wherein, first storage system is identical or different with second storage system.
In the embodiment of the present invention, the converting unit 904, specifically for：It is each in the target disk node chain
The form of individual file, row format conversion is entered to each file in the former disk node chain of the virtual machine；If necessary to original
At least two files in disk node chain are merged, it is determined that object to be combined, and the object to be combined is passed through
A file in target disk node chain is merged into after form conversion；If need not enter to the file in former disk node chain
Row merges, then as in target disk node chain after the file in the former disk node chain is changed through form
File；The store path of each file in the target disk node chain, to each text in target disk node chain
Part is stored, and the virtual machine is migrated to target virtualization platform from the former virtual platform.
In the embodiment of the present invention, described device also includes：
Computing unit 905, for configuring target disk node chain information after the completion of, calculate the former disk section of the virtual machine
The conversion time of all files in point chain；
The converting unit 904, specifically for：If the conversion time meets pre-conditioned, to the virtual machine
Former disk node chain in each file changed, the virtual machine is migrated to target from the former virtual platform
Virtual platform.
The embodiment of the present invention can all keep chain structure to disk mirroring node as needed, or close as needed
And the chain type node of redundancy, the automation feature with flexible configuration, while being applicable across manufacturer platform switching, cut with across storage
Change；Expanded well on the basis of existing migration pattern is included, so as to meet existing virtual machine to greatest extent in difference
The diversified demand of platform migration.
Virtual machine (vm) migration device provided in an embodiment of the present invention is that one kind is changed based on flexible form is done to image file,
And the cross-platform Migration tools of the virtual machine with visual configuration.The device at least has the advantage that：(1) can realize
By the virtual machine image file of VHD/VHDX forms, the virtual machine image file of QCOW2 forms is converted into, realized flat across virtualization
The virtual machine (vm) migration of platform；(2) the disk mirroring file of virtual machine is can guarantee that before platform migration, based on increment difference snapping technique
New virtual platform of the chain structure for being formed after migration can still retain, and not influenceed by migration；(3) can neatly basis
User needs selectively to realize certain the several image file node in the magnetic disk of virtual machine image file chain of chain structure
Form is changed and merged, so that storage and distribution requirement of the new platform to the image file after migration is flexibly met；(4) for holding
In the case that the storage of load virtual machine image changes, distributed intelligence that can be according to former mirror nodes in original storage is flexibly matched somebody with somebody
Put corresponding target repository；(5) the visual configuration automation migration of virtual machine is realized.
It will be appreciated by those skilled in the art that each unit in virtual machine (vm) migration device shown in Fig. 9 realizes that function can
Understand with reference to the associated description of aforementioned virtual machine moving method.
The embodiment of the present invention also provides a kind of electronic equipment, and the electronic equipment includes processor and memory, the storage
Be stored with computer program instructions in device, and when computer program instructions described in the computing device, the processor is used for
Perform any described virtual machine migration method of the embodiment of the present invention.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can be using the shape of the embodiment in terms of hardware embodiment, software implementation or combination software and hardware
Formula.And, the present invention can be used can use storage in one or more computers for wherein including computer usable program code
The form of the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram are described.It should be understood that every first-class during flow chart and/or block diagram can be realized by computer program instructions
The combination of flow and/or square frame in journey and/or square frame and flow chart and/or block diagram.These computer programs can be provided
The processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced for reality by the instruction of computer or the computing device of other programmable data processing devices
The device of the function of being specified in present one flow of flow chart or multiple one square frame of flow and/or block diagram or multiple square frames.
These computer program instructions may be alternatively stored in can guide computer or other programmable data processing devices with spy
In determining the computer-readable memory that mode works so that instruction of the storage in the computer-readable memory is produced and include finger
Make the manufacture of device, the command device realize in one flow of flow chart or multiple one square frame of flow and/or block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that in meter
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented treatment, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
The above, only presently preferred embodiments of the present invention is not intended to limit the scope of the present invention.
Claims (17)
1. a kind of virtual machine migration method, it is characterised in that methods described includes：
Virtual machine to be migrated is selected in former virtual platform；
Obtain former disk node chain information of the virtual machine in the former virtual platform；
According to the former disk node chain information, target disk node chain information is configured；
Based on the target disk node chain information, each file in the former disk node chain of the virtual machine is turned
Change, the virtual machine is migrated to target virtualization platform from the former virtual platform.
2. method according to claim 1, it is characterised in that the acquisition virtual machine is in the former virtual platform
In former disk node chain information, including：
Obtain following information of the virtual machine in the former virtual platform：Number of files, original in former disk node chain
The store path of each file in the form of each file in disk node chain, former disk node chain, former disk node chain
In each file chain relationship.
3. method according to claim 2, it is characterised in that described according to the former disk node chain information, configures mesh
Mark disk node chain information, including：
According to the former disk node chain information, following information is configured：Number of files, target disk in target disk node chain
Store path, the target disk node chain of each file in form, the target disk node chain of each file in node chain
In each file chain relationship.
4. method according to claim 3, it is characterised in that according to the former disk node chain information, configures the mesh
The chain relationship of each file in mark disk node chain, including：
If necessary to being merged at least two files in former disk node chain, it is determined that object to be combined, and by institute
State object merging to be combined an into file in target disk node chain；
File after chain relationship and the merging based on each file in the former disk node chain, sets up the mesh
The chain relationship of each file in mark disk node chain.
5. method according to claim 3, it is characterised in that according to the former disk node chain information, configures the mesh
The chain relationship of each file in mark disk node chain, including：
If need not be merged to the file in former disk node chain, by the file in the former disk node chain
As a file in target disk node chain；
Based on the chain relationship of each file in the former disk node chain, each in the target disk node chain is set up
The chain relationship of file.
6. method according to claim 3, it is characterised in that the storage road of each file in the former disk node chain
Storage region in the first storage system of correspondence of footpath；The store path correspondence the of each file in the target disk node chain
Storage region in two storage systems；Wherein, first storage system is identical or different with second storage system.
7. method according to claim 3, it is characterised in that described based on the target disk node chain information, to institute
Each file stated in the former disk node chain of virtual machine is changed, and the virtual machine is moved from the former virtual platform
Target virtualization platform is moved to, including：
The form of each file in the target disk node chain, to the former disk node chain of the virtual machine in it is each
Individual file enters row format conversion；
If necessary to being merged at least two files in former disk node chain, it is determined that object to be combined, and by institute
State a file being merged into target disk node chain after object to be combined is changed through form；
If need not be merged to the file in former disk node chain, by the file in the former disk node chain
As a file in target disk node chain after being changed through form；
The store path of each file in the target disk node chain, to each file in target disk node chain
Stored, the virtual machine is migrated to target virtualization platform from the former virtual platform.
8. the method according to any one of claim 1 to 7, it is characterised in that methods described also includes：
After the completion of configuration target disk node chain information, turning for all files in the former disk node chain of the virtual machine is calculated
Change the time；
If the conversion time meets pre-conditioned, each file in the former disk node chain of the virtual machine is carried out
Conversion, the virtual machine is migrated to target virtualization platform from the former virtual platform.
9. a kind of virtual machine (vm) migration device, it is characterised in that described device includes：
Select unit, for selecting virtual machine to be migrated in former virtual platform；
Acquiring unit, for obtaining former disk node chain information of the virtual machine in the former virtual platform；
Dispensing unit, for according to the former disk node chain information, configuring target disk node chain information；
Converting unit, for based on the target disk node chain information, to the former disk node chain of the virtual machine in it is each
Individual file is changed, and the virtual machine is migrated to target virtualization platform from the former virtual platform.
10. device according to claim 9, it is characterised in that the acquiring unit, specifically for：Obtain described virtual
Following information of the machine in the former virtual platform：It is each in number of files, former disk node chain in former disk node chain
The chain of each file in store path, the former disk node chain of each file in the form of individual file, former disk node chain
Formula relation.
11. devices according to claim 10, it is characterised in that the dispensing unit, specifically for：According to the former magnetic
Disk node chain information, configures following information：Each text in number of files, target disk node chain in target disk node chain
The chain of each file in store path, the target disk node chain of each file in form, the target disk node chain of part
Formula relation.
12. devices according to claim 11, it is characterised in that the dispensing unit, specifically for：If necessary to original
At least two files in disk node chain are merged, it is determined that object to be combined, and the object to be combined is closed
And into a file in target disk node chain；Chain relationship based on each file in the former disk node chain and
File after the merging, the chain relationship of each file set up in the target disk node chain.
13. devices according to claim 11, it is characterised in that the dispensing unit, specifically for：If need not be right
File in former disk node chain is merged, then using the file in the former disk node chain as target disk node
A file in chain；Based on the chain relationship of each file in the former disk node chain, the target disk section is set up
The chain relationship of each file in point chain.
14. devices according to claim 11, it is characterised in that the storage of each file in the former disk node chain
Storage region in the first storage system of correspondence of path；The store path correspondence of each file in the target disk node chain
Storage region in second storage system；Wherein, first storage system is identical or different with second storage system.
15. devices according to claim 11, it is characterised in that the converting unit, specifically for：According to the target
The form of each file in disk node chain, row format is entered to each file in the former disk node chain of the virtual machine and is turned
Change；If necessary to be merged at least two files in former disk node chain, it is determined that object to be combined, and will be described
Object to be combined is merged into a file in target disk node chain after being changed through form；If need not be to former disk section
File in point chain is merged, then as target disk after the file in the former disk node chain is changed through form
A file in node chain；The store path of each file in the target disk node chain, to target disk section
Each file in point chain is stored, and the virtual machine is migrated to target virtualization from the former virtual platform and is put down
Platform.
16. device according to any one of claim 9 to 15, it is characterised in that described device also includes：
Computing unit, for configuring target disk node chain information after the completion of, in calculating the former disk node chain of the virtual machine
All files conversion time；
The converting unit, specifically for：If the conversion time meets pre-conditioned, to the former disk of the virtual machine
Each file in node chain is changed, and the virtual machine is migrated to target virtualization from the former virtual platform and is put down
Platform.
17. a kind of electronic equipment, it is characterised in that the electronic equipment includes processor and memory, is deposited in the memory
Computer program instructions are contained, when computer program instructions described in the computing device, the processor is used for right of execution
Profit requires the virtual machine migration method described in 1 to 8 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710049191.4A CN106874066B (en) | 2017-01-20 | 2017-01-20 | Virtual machine migration method and device and electronic equipment |
| PCT/CN2017/115562 WO2018133578A1 (en) | 2017-01-20 | 2017-12-12 | Method and device for migrating virtual machine, computer storage medium, and electronic apparatus |
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| CN201710049191.4A CN106874066B (en) | 2017-01-20 | 2017-01-20 | Virtual machine migration method and device and electronic equipment |
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| WO2018133578A1 (en) * | 2017-01-20 | 2018-07-26 | 中兴通讯股份有限公司 | Method and device for migrating virtual machine, computer storage medium, and electronic apparatus |
| CN108459883A (en) * | 2018-01-11 | 2018-08-28 | 杭州魔点科技有限公司 | application program chain configuration management method and device |
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| CN109597671A (en) * | 2018-12-11 | 2019-04-09 | 国云科技股份有限公司 | A kind of desktop cloud implementation method being compatible with centralized and distributed operation |
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| 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 |
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Also Published As
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| CN106874066B (en) | 2021-01-26 |
| WO2018133578A1 (en) | 2018-07-26 |
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