CN103425550B - A kind of system cloning process and device - Google Patents
A kind of system cloning process and device Download PDFInfo
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- CN103425550B CN103425550B CN201310291022.3A CN201310291022A CN103425550B CN 103425550 B CN103425550 B CN 103425550B CN 201310291022 A CN201310291022 A CN 201310291022A CN 103425550 B CN103425550 B CN 103425550B
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Abstract
The method and apparatus that the invention discloses a kind of system clone, the method includes: the paternal system being cloned for the needs in source server, create a snapshot document of mourning in silence, described snapshot document of mourning in silence preserves the related data in the paternal system needing to be cloned described in certain time point；Create the second snapshot document, described second snapshot document preserves the related data changed in the paternal system that the described needs after described time point are cloned；According to described establishment complete mourn in silence snapshot document and the second snapshot document generates the subsystem of correspondence in destination server.The technical scheme that the present invention provides can solve the problem that existing method cloning procedure is slow, and during clone, system external service disruption on source server and clone low success rate of problem.
Description
Technical field
The present invention relates to computer system clone technology field, particularly relate to a kind of system cloning process and
Device.
Background technology
With the fast development of Intel Virtualization Technology, IT environment implements Intel Virtualization Technology.Core application
After system deployment completes, owing to system and data constantly extend, the separate unit physical machine that height is joined all cannot realize
When applying properly functioning, when needing to use minicomputer or the higher equipment of the speed of service, according to existing work
Tool and software cannot be realized by clone.The traditional method currently realizing virtual machine clone is to utilize void
The existing static cloning function of plan machine, i.e. hangs up/recovers virtual machine, by hanging up on a machine
The virtual machine run, then copies the virtual machine file preserved on purpose machine to, then at purpose machine
The operation of upper recovery virtual machine.The process of this kind of clone is the slowest, it usually needs ten a few minutes and success rate are relatively
Low.
In sum, it is slow to there is clone's speed in existing system cloning process and device, and in the mistake of clone
Cheng Zhong, system external service disruption on source server and clone low success rate of problem.
Summary of the invention
The method and apparatus that the invention provides a kind of system clone, the technical scheme that the present invention provides can
Solve existing method cloning procedure slow, and during clone, the system external service on source server
Interrupt and clone low success rate of problem.
For reaching described purpose, the technical scheme is that and be achieved in that:
The method that the invention discloses a kind of system clone, the method includes:
The paternal system being cloned for the needs in source server, creates a snapshot document of mourning in silence, in institute
State the dependency number preserved in snapshot document of mourning in silence in the paternal system specifying the described needs of time point to be cloned
According to；Create the second snapshot document, preserve in described second snapshot document described in after described time point
Need the related data changed in the paternal system being cloned；The snapshot of mourning in silence completed according to described establishment
File and the second snapshot document generate the subsystem of correspondence in destination server.
In the above-mentioned methods, the described paternal system being cloned for the needs in source server, create one
Snapshot document of mourning in silence comprises determining that the paternal type united needing on source server to be cloned, and determines that source takes
The state of the paternal system being cloned is needed on business device；When the state of described paternal system is run-stopping status,
Type according to described paternal system and the state of paternal system, create paternal line system on source server and specifying
The snapshot document of mourning in silence of time point.
In the above-mentioned methods, before snapshot document is mourned in silence in establishment, the method also includes: the service of configuration source
The memory module of the paternal system that the needs in device are cloned, configuration source server and the paternal system needing clone
Storage device between mapping relations；The disk file of the paternal system on source server is set to read-only shape
State.
In the above-mentioned methods, described mourn in silence snapshot document and the second snapshot literary composition completed according to described establishment
Part generates the subsystem of correspondence in destination server and includes: by the described data mourned in silence in snapshot document first
It is written in destination server generate the subsystem of correspondence, protects in the storage device that destination server is corresponding
Deposit the data first write；In the subsystem generated of destination server, by the second snapshot document
Related data be synchronized in described subsystem.
The invention discloses the device of a kind of system clone, this device includes:
For the paternal system being cloned for the needs in source server, create a snapshot document of mourning in silence,
The dependency number in the paternal system needing to be cloned described in certain time point is preserved in described snapshot document of mourning in silence
According to snapshot document creating unit of mourning in silence；
For preserving the father that the described needs after described time point are cloned in described second snapshot document
Second snapshot document creating unit of the related data changed in system；
For mourn in silence snapshot document and the second snapshot document that complete according to described establishment at destination server
The middle processing unit generating corresponding subsystem；
Described snapshot document creating unit of mourning in silence is connected with processing unit, and described second snapshot document creates
Unit is connected with processing unit.
In said apparatus, described in mourn in silence snapshot document creating unit for determine need on source server by
The type of the paternal system of clone, determines the paternal state united needing on source server to be cloned；When described
When the state of paternal system is run-stopping status, according to type and the state of paternal system of described paternal system,
Source server creates the paternal line system snapshot document of mourning in silence at certain time point.
In said apparatus, this device also includes: for configuring the father that the needs in source server are cloned
The memory module of system, the mapping between configuration source server and the paternal storage device united needing clone
Relation；The disk file of the paternal system on source server is set to the dispensing unit of read-only status.
In said apparatus, described processing unit is used for after described snapshot document of mourning in silence has created,
The described data mourned in silence in snapshot document are first written in destination server generate the subsystem of correspondence,
The storage device that destination server is corresponding preserves the data first write.
In said apparatus, described processing unit is additionally operable to the subsystem generated at destination server
In, the related data in the second snapshot document is synchronized in described subsystem.
In sum, in the inventive solutions, by the needs in source server are cloned
Father's system creation is mourned in silence snapshot document and the second snapshot document, and establishment is completed mourn in silence snapshot document with
And second snapshot document read and write destination server generates correspondence subsystem, the method and device can
System external service in the service of holding source is not interrupted, and can the system in former framework be cloned into again new hard
On part, and cloning speed soon, success rate is high.
Accompanying drawing explanation
Fig. 1 is the flow chart of system cloning process in a kind of embodiment in the present invention；
Fig. 2 is the flow chart of system cloning process in another kind of embodiment in the present invention；
Fig. 3 is the principle assumption diagram of system clone device in a kind of embodiment in the present invention；
Fig. 4 is the principle assumption diagram of system clone device in another kind of embodiment in the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to this
Bright embodiment is described in further detail.
Fig. 1 is the flow chart of system cloning process in a kind of embodiment in the present invention.As described in Figure 1, should
Method comprises the steps.
Step 101, the paternal system being cloned for the needs in source server, create a snapshot of mourning in silence
File, preserves the phase in the paternal system specifying the described needs of time point to be cloned in snapshot document of mourning in silence
Close data.Appointment time point mentioned here refers to the time point of instruction clone's paternal line system.
In one specific embodiment of the present invention, before snapshot document is mourned in silence in establishment, need first to configure source
The memory module of the paternal system that the needs in server are cloned, configuration source server and the father needing clone
Mapping relations between the storage device of system；The disk file of the paternal system on source server is set to only
Read states.Then, it is determined that need the type of the paternal system being cloned on source server, determine source server
The state of the paternal system that upper needs are cloned；When the state of this paternal line system is run-stopping status, according to
The type of paternal system and the state of paternal system, create on source server and need the paternal system being cloned to exist
The snapshot document of mourning in silence of certain time point.
Step 102, creates the second snapshot document, after preserving described time point in the second snapshot document
The paternal system that is cloned of needs in the related data that changes.
Step 103, according to mourn in silence snapshot document and the second snapshot document created in destination service
Device generates the subsystem of correspondence.
In a kind of specific embodiment of the present invention, the subsystem generating correspondence in destination server is concrete
The process of realization is: first, the described data mourned in silence in snapshot document is first written in destination server raw
Become corresponding subsystem；Preserve, in the storage device that destination server is corresponding, the data first write.Then,
In the subsystem of the destination server generated, the related data in the second snapshot document is synchronized to
In this subsystem.
Fig. 2 is the flow chart of system cloning process in another kind of embodiment in the present invention.As described in Figure 2,
The method comprises the steps.
Step 201, the memory module of the paternal system that the needs in configuration source server are cloned, configure source
Mapping relations between server and the paternal storage device united needing clone；By the father on source server
The disk file of system is set to read-only status；
In step 201, source server can be PC server based on X86-based.Determining source
After server, need to build application platform, on the platform application deployment management mould on source server
Block；The memory module of the paternal system that the needs in configuration source server are cloned, this memory module can be
ISCSI, NAS or FC store；Configuration source server with need clone paternal system storage device it
Between mapping relations, network connected reference application management module can be passed through with this, and determine application platform
Whether deployment success.Finally, the disk file of the paternal system on source server is set to read-only status.
Step 202, the paternal system being cloned for the needs in source server, create a snapshot of mourning in silence
File, preserves in the paternal system needing to be cloned described in certain time point in described snapshot document of mourning in silence
Related data；
In step 202., need first to determine the paternal type united needing on source server to be cloned, example
As, this system is windows or linux.Next is also predefined on source server the father needing to be cloned
The state of system；When the state of this paternal line system is run-stopping status, for the paternal system of specified type,
Application management module creation paternal line system is at the snapshot document of mourning in silence of certain time point, and this mourns in silence snapshot document i.e.
In uniting for paternal line, disk file and memory file are at certain time point duplicate timely, in order to follow-up clone's
During use.
Step 203, creates the second snapshot document, after preserving described time point in the second snapshot document
The paternal system that is cloned of described needs in the related data that changes.
In step 203, according to the method in step 202 needs in source server are being cloned
Father's system creation mourn in silence snapshot document time, in current parent's system, writeable disk file is read-only status,
So need to create the second snapshot document be saved in establishment mourn in silence snapshot document time, the disk in paternal system
With the related data changed in internal memory.In an initial condition, the size of this second snapshot document is general
For 16MB, and along with the write operation of disk file is increased by source server.When in destination server,
When synchronizing this second snapshot document, all data, file in subsystem all can keep and in source server
The paternal system that is cloned of needs in data, file synchronization.
Step 204, mourn in silence snapshot document and the second snapshot document that complete according to described establishment are in target
Server generates the subsystem of correspondence.
In step 204, the process that implements of the subsystem generating correspondence in destination server is:
The data mourned in silence in snapshot document are first written in destination server, will source server need by gram
The part data of grand paternal system first replicate to be read and write in destination server, and replicating data out needs exactly
File required for paternal system to be cloned and data；The storage device that destination server is corresponding is protected
Deposit the data first write.
Related data in second snapshot document is synchronized in destination server, because the second snapshot document
In have recorded in the process that the data mourning in silence in snapshot document are written in destination server generate subsystem
In, the related data changed in the paternal system that the needs in source server are cloned, so in order to protect
Hold the concordance of system before and after clone, need to take the data syn-chronization changed in cloning procedure to target
In the subsystem that business device is corresponding, the disk file after updating in the subsystem that destination server is corresponding and internal memory
File together constitutes new subsystem.
Delete the snapshot document of mourning in silence of the paternal system that the needs in the source server created are cloned, be deleted
Snapshot document of mourning in silence simply just started the disk file of certain time point that created by clone's paternal line system and
Memory file, the paternal subsystem corresponding with destination server of uniting that the needs in source server are cloned
The most do not affect.
Step 205, by network connected reference application management module, checks the son that destination server is corresponding
System has been cloned successfully the most.
In step 205, after confirming that the subsystem that destination server is corresponding is cloned successfully, this target
The subsystem that server is corresponding has possessed the paternal line all of application of system that the needs in source server are cloned.
As multiple subsystem need to be cloned, then the cloning process in the application can be used same in the environment under cloud computing
The multiple subsystem of Shi Kelong is to meet user's request.
Fig. 3 is the principle assumption diagram of system clone device in a kind of embodiment in the present invention.As described in Figure 3,
This device includes such as lower unit.
For the paternal system being cloned for the needs in source server, create a snapshot document of mourning in silence,
The dependency number in the paternal system needing to be cloned described in certain time point is preserved in described snapshot document of mourning in silence
According to snapshot document creating unit 301 of mourning in silence.
The paternal system that needs after the holding time in described second snapshot document puts are cloned is sent out
Second snapshot document creating unit 302 of the related data of changing.
For mourn in silence snapshot document and the second snapshot document that complete according to described establishment at destination server
The middle processing unit 303 generating corresponding subsystem.
Snapshot document creating unit 301 of mourning in silence is connected with processing unit 303, and the second snapshot document creates
Unit 302 is connected with processing unit 303.
In one specific embodiment of the present invention, this device also includes, for configuring the need in source server
The memory module of paternal system to be cloned, configuration source server sets with the storage of the paternal system needing clone
Mapping relations between Bei；The disk file of the paternal system on source server is set to the configuration of read-only status
Unit 304.
After dispensing unit 304 completes above-mentioned configuration, snapshot document creating unit 301 of mourning in silence is for really
Determine the paternal type united needing on source server to be cloned, determine the father needing on source server to be cloned
The state of system；When the state of described paternal system is run-stopping status, according to the class of described paternal system
Type and the state of paternal system, create the paternal line system snapshot literary composition of mourning in silence at certain time point on source server
Part.
In a kind of specific embodiment of the present invention, processing unit 303 is specifically at snapshot document of mourning in silence
After establishment completes, it is first written to the data mourned in silence in snapshot document in destination server generate correspondence
Subsystem；Preserve, in the storage device that destination server is corresponding, the data first write.Processing unit 303
It is additionally operable in the subsystem generated of destination server, by the related data in the second snapshot document
It is synchronized in described subsystem.
Fig. 4 is the principle assumption diagram of system clone device in another kind of embodiment in the present invention.Such as Fig. 4 institute
Stating, this device includes such as lower unit.
For configuring the memory module of the paternal system that the needs in source server are cloned, configure source server
And need the mapping relations between the paternal storage device united of clone；By the paternal system on source server
Disk file is set to the dispensing unit 401 of read-only status.
Source server can be PC server based on X86-based.After determining source server, need
Source server to be built application platform, on the platform application deployment management module；Configuration source services
The memory module of the paternal system that the needs in device are cloned, this memory module can be ISCSI, NAS or
Person FC stores；Mapping relations between configuration source server and the paternal storage device united needing clone,
Network connected reference application management module can be passed through with this, and determine application platform whether deployment success.
Finally, the disk file of the paternal system on source server is set to read-only status.
The paternal system being cloned for the needs in source server, creates a snapshot document of mourning in silence, in institute
State the related data preserved in snapshot document of mourning in silence during the paternal line needing to be cloned described in certain time point is united
Mourn in silence snapshot document creating unit 402.
Needing first to determine the paternal type united needing on source server to be cloned, such as, this system is
Windows or linux.Next is also predefined on source server the paternal state united needing to be cloned；
When the state of this paternal line system is run-stopping status, for the paternal system of specified type, application management mould
Block creates the paternal line system snapshot document of mourning in silence at certain time point, and this snapshot document of mourning in silence is in paternal system
Disk file and memory file are at certain time point duplicate timely, in order to use during follow-up clone.
For preserving the father that the described needs after described time point are cloned in described second snapshot document
Second snapshot document creating unit 403 of the related data changed in system.
Snapshot document creating unit 402 of mourning in silence is at the father's system creation being cloned the needs in source server
Mourn in silence snapshot document time, in current parent's system, writeable disk file is read-only status, thus need wound
Build the second snapshot document be saved in establishment mourn in silence snapshot document time, disk in paternal system and internal memory are sent out
The related data of changing.In an initial condition, the size of this second snapshot document is generally 16MB,
And along with the write operation of disk file is increased by source server.When in destination server, synchronize this
During two snapshot documents, all data in subsystem, file all can keep and in source server need by
Data in the paternal system of clone, file synchronization.
Mourn in silence snapshot document and the life in destination server of the second snapshot document completed according to described establishment
Become the processing unit 404 of corresponding subsystem.
The process that implements of the subsystem generating correspondence in destination server is: snapshot document of mourning in silence
In data be first written in destination server, source server will need the portion of the paternal system being cloned
Divided data first replicates to be read and write in destination server, and replicating data out is exactly the paternal line needing to be cloned
File required for system and data；Preserve, in the storage device that destination server is corresponding, the data first write.
Related data in second snapshot document is synchronized in destination server, because the second snapshot document
In have recorded in the process that the data mourning in silence in snapshot document are written in destination server generate subsystem
In, the related data changed in the paternal system that the needs in source server are cloned, so in order to protect
Hold the concordance of system before and after clone, need to take the data syn-chronization changed in cloning procedure to target
In the subsystem that business device is corresponding, the disk file after updating in the subsystem that destination server is corresponding and internal memory
File together constitutes new subsystem.
Delete the snapshot document of mourning in silence of the paternal system that the needs in the source server created are cloned, be deleted
Snapshot document of mourning in silence simply just started the disk file of certain time point that created by clone's paternal line system and
Memory file, the paternal subsystem corresponding with destination server of uniting that the needs in source server are cloned
The most do not affect.
In sum, in the inventive solutions, by the needs in source server are cloned
Father's system creation is mourned in silence snapshot document and the second snapshot document, and establishment is completed mourn in silence snapshot document with
And second snapshot document read and write destination server generates correspondence subsystem, the method can keep source
System external service in service is not interrupted, and can the system in former framework be cloned on new hardware again,
And clone speed soon, success rate is high.
Due to the fact that and employ api interface function, it is not necessary on each virtual machine, dispose agency,
Only need to dispose virtualization clone software plug-in unit on individually management server, therefore performance with clone into
Present aspect has obvious advantage.When system is during hardware platform is cloned, first need not stop
Cluster Service, keeps applying and runs on single virtual machine, thus ensured that business is not interrupted；Secondly
By virtualized clone vehicle, whole source storage device is made online reflection level to clone, then clone
The file access pattern gone out is under purpose platform, it is achieved thereby that application is from clone's merit of source platform to purpose platform
Energy.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the protection model of the present invention
Enclose.All any modification, equivalent substitution and improvement etc. made within the spirit and principles in the present invention, all
Comprise within the scope of the present invention.
Claims (7)
1. a system cloning process, it is characterised in that the method includes:
The paternal system being cloned for the needs in source server, creates a snapshot document of mourning in silence, in institute
State the dependency number preserved in snapshot document of mourning in silence in the paternal system specifying the described needs of time point to be cloned
According to；
Create the second snapshot document, preserve in described second snapshot document described in after described time point
Need the related data changed in the paternal system being cloned；
Mourn in silence snapshot document and the life in destination server of the second snapshot document completed according to described establishment
Become corresponding subsystem；
The described paternal system being cloned for the needs in source server, creates a snapshot document bag of mourning in silence
Include:
Determine the type of the paternal system needing on source server to be cloned, determine need on source server by gram
The state of grand paternal system；
When the state of described paternal system is run-stopping status,
Type according to described paternal system and the state of paternal system, create paternal line system on source server and exist
Specify the snapshot document of mourning in silence of time point.
Method the most according to claim 1, it is characterised in that before snapshot document is mourned in silence in establishment,
The method also includes:
The memory module of the paternal system that the needs in configuration source server are cloned, configures source server and needs
Mapping relations between the storage device of paternal system to be cloned；
The disk file of the paternal system on source server is set to read-only status.
Method the most according to claim 1, it is characterised in that described complete according to described establishment
Mourn in silence snapshot document and the second snapshot document generate the subsystem of correspondence in destination server and includes:
The described data mourned in silence in snapshot document are first written in destination server generate the subsystem of correspondence
System, preserves, in the storage device that destination server is corresponding, the data first write；
In the subsystem generated of destination server, the related data in the second snapshot document is same
Walk in described subsystem.
4. the device of a system clone, it is characterised in that this device includes:
For the paternal system being cloned for the needs in source server, create a snapshot document of mourning in silence,
The dependency number in the paternal system needing to be cloned described in certain time point is preserved in described snapshot document of mourning in silence
According to snapshot document creating unit of mourning in silence；
For preserving the paternal system that the described needs after described time point are cloned in the second snapshot document
In the second snapshot document creating unit of related data of changing；
For mourn in silence snapshot document and the second snapshot document that complete according to described establishment at destination server
The middle processing unit generating corresponding subsystem；
Described snapshot document creating unit of mourning in silence is connected with processing unit, and described second snapshot document creates
Unit is connected with processing unit；
Described snapshot document creating unit of mourning in silence is for determining what the paternal line needing to be cloned on source server was united
Type, determines the paternal state united needing on source server to be cloned；When the state of described paternal system is
During run-stopping status, according to type and the state of paternal system of described paternal system, on source server
Create the paternal line system snapshot document of mourning in silence at certain time point.
Device the most according to claim 4, it is characterised in that this device also includes:
For configuring the memory module of the paternal system that the needs in source server are cloned, configure source server
And need the mapping relations between the paternal storage device united of clone；By the paternal system on source server
Disk file is set to the dispensing unit of read-only status.
Device the most according to claim 5, it is characterised in that described processing unit is for described
After snapshot document of mourning in silence has created, the described data mourned in silence in snapshot document are first written to target clothes
Business device generates the subsystem of correspondence, preserves, in the storage device that destination server is corresponding, the number first write
According to.
Device the most according to claim 6, it is characterised in that described processing unit is additionally operable at mesh
In the subsystem generated of mark server, the related data in the second snapshot document is synchronized to described
In subsystem.
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| CN103713970B (en) * | 2013-12-31 | 2017-02-15 | 曙光云计算技术有限公司 | Disk mirroring file snapshot making method and system based on virtual machine |
| CN104239444B (en) * | 2014-09-01 | 2017-11-03 | 上海爱数信息技术股份有限公司 | The consistent data protection of oracle database and the method for capture coherency state |
| CN107807842A (en) * | 2017-10-23 | 2018-03-16 | 国云科技股份有限公司 | A kind of online cloning process of virtual machine |
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| US8151263B1 (en) * | 2006-03-31 | 2012-04-03 | Vmware, Inc. | Real time cloning of a virtual machine |
| CN103092678A (en) * | 2013-01-22 | 2013-05-08 | 华中科技大学 | Multi-increment virtual machine memory management system and method |
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| US7536525B2 (en) * | 2004-11-09 | 2009-05-19 | Dell Products L.P. | Virtual machine hot cloning including freezing and unfreezing memory in a distributed network |
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| US8151263B1 (en) * | 2006-03-31 | 2012-04-03 | Vmware, Inc. | Real time cloning of a virtual machine |
| CN101064730A (en) * | 2006-09-21 | 2007-10-31 | 上海交通大学 | Local and remote backup method for computer network data file |
| CN103092678A (en) * | 2013-01-22 | 2013-05-08 | 华中科技大学 | Multi-increment virtual machine memory management system and method |
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Inventor after: Zhao Ke Inventor after: Tao Kemeng Inventor before: Tao Kemeng |
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| COR | Change of bibliographic data |