CN103425550A - System cloning method and device - Google Patents
System cloning method and device Download PDFInfo
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- CN103425550A CN103425550A CN2013102910223A CN201310291022A CN103425550A CN 103425550 A CN103425550 A CN 103425550A CN 2013102910223 A CN2013102910223 A CN 2013102910223A CN 201310291022 A CN201310291022 A CN 201310291022A CN 103425550 A CN103425550 A CN 103425550A
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Abstract
The invention discloses a system cloning method and device. The method includes: creating a silent snapshot file for a master system in a source server, to be cloned, and storing certain-moment related data of the master system, to be cloned, into the silent snapshot file; creating a second snapshot file, storing related data, which changes in the master system to be cloned after the certain moment, into the second snapshot file; generating a corresponding slave system in a target server according to the created silent snapshot file and the created second snapshot file. Through the system cloning method and device, the problems that the existing method is low in cloning speed, the system of the source server interrupts external services during the cloning process and the cloning success rate is low are solved.
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
Follow the fast development of Intel Virtualization Technology, in the IT environment, implemented Intel Virtualization Technology.After core application system has been disposed, because system and data are constantly expanded, when the separate unit physical machine that height is joined all can't realize applying normal operation, while needing to use minicomputer or the higher equipment of travelling speed, according to existing instrument and software, can't realize by the clone.The current classic method that realizes that virtual machine is cloned is to utilize the existing static cloning function of virtual machine, hang up/recover virtual machine, by hang up the virtual machine moved on a machine, then the virtual machine file of preserving is copied on the purpose machine, then recover the operation of virtual machine on the purpose machine.This kind of clone's process is too slow, usually need tens minutes and success ratio lower.
In sum, existing system cloning process and device exist clone's speed slow, and in clone's process, the external service disruption of the system on source server and the low problem of clone's success ratio.
Summary of the invention
The invention provides a kind of system clone's method and apparatus, it is slow that technical scheme provided by the invention can solve existing method clone process, and in clone's process, the external service disruption of the system on source server and the low problem of clone's success ratio.
For reaching described purpose, technical scheme of the present invention is achieved in that
The invention discloses a kind of system clone method, the method comprises:
The paternal line system be cloned for the needs in source server, create the snapshot document of mourning in silence, the related data in the paternal line system that the described needs of preservation fixed time point are cloned in the described snapshot document of mourning in silence; Create the second snapshot document, the related data changed in the paternal line system that the described needs in described the second snapshot document after the described time point of preservation are cloned; Mourn in silence snapshot document and the second snapshot document that according to described establishment, complete generate corresponding subsystem in destination server.
In said method, the described paternal line system be cloned for the needs in source server creates the snapshot document of mourning in silence and comprises: determine on source server the type that needs the paternal line system that is cloned, determine on source server the state that needs the paternal line system that is cloned; When the state of described paternal system is run-stopping status, according to the type of described paternal system and the state of paternal system, create the paternal system snapshot document of mourning in silence at the appointed time on source server.
In said method, before snapshot document is mourned in silence in establishment, the method also comprises: the memory module of the paternal line system that the needs in the source of configuration server are cloned, the mapping relations between the memory device that source of configuration server and the paternal line that need to clone are united; The disk file of the system of the paternal line on source server is made as to a read states.
In said method, described mourn in silence snapshot document and the second snapshot document completed according to described establishment generates corresponding subsystem and comprises in destination server: the data in the described snapshot document of mourning in silence are first written to subsystem corresponding to generation in destination server, at destination server, in corresponding memory device, preserve the data that first write; In the subsystem generated of destination server, the related data in the second snapshot document is synchronized in described subsystem.
The invention discloses a kind of system clone's device, this device comprises:
The paternal line system be cloned for the needs for source server, create the snapshot document of mourning in silence, the snapshot document creating unit of mourning in silence of the related data in the paternal line system that the described needs of certain time point of preservation are cloned in the described snapshot document of mourning in silence;
The second snapshot document creating unit of the related data changed in the paternal line system be cloned for the described needs after described the second snapshot document is preserved described time point;
The processing unit of mourn in silence snapshot document and the second snapshot document corresponding subsystem in the destination server generation that is used for completing according to described establishment;
The described snapshot document creating unit of mourning in silence is connected with processing unit, and described the second snapshot document creating unit is connected with processing unit.
In said apparatus, the described snapshot document creating unit of mourning in silence is for determining on source server the type that needs the paternal line system that is cloned, determine on source server the state that needs the paternal line system that is cloned; When the state of described paternal system is run-stopping status, according to the type of described paternal system and the state of paternal system, create the mourn in silence snapshot document of paternal system at certain time point on source server.
In said apparatus, this device also comprises: the memory module of the paternal line system be cloned for the needs of source of configuration server, the mapping relations between the memory device that source of configuration server and the paternal line that needs the clone are united; The disk file of the system of the paternal line on source server is made as to the dispensing unit of a read states.
In said apparatus, described processing unit is for after the described snapshot document of mourning in silence has created, data in the described snapshot document of mourning in silence are first written to subsystem corresponding to generation in destination server, preserve the data that first write at destination server in corresponding memory device.
In said apparatus, described processing unit also, for the subsystem generated at destination server, is synchronized to the related data in the second snapshot document in described subsystem.
In sum, in technical scheme of the present invention, the paternal line system be cloned by the needs in source server creates mourn in silence snapshot document and the second snapshot document, and mourn in silence snapshot document and the second snapshot document that establishment is completed are read and write subsystem corresponding to generation in destination server, the method and device can the maintenance source the external service of system in service do not interrupt, system in former framework can be cloned on new hardware again, and clone's speed is fast, success ratio is high.
The accompanying drawing explanation
Fig. 1 is the process flow diagram of system cloning process in a kind of embodiment in the present invention;
Fig. 2 is the process flow diagram 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.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Fig. 1 is the process flow diagram of system cloning process in a kind of embodiment in the present invention.As described in Figure 1, the method comprises the steps.
In a kind of specific embodiment of the present invention, before snapshot document is mourned in silence in establishment, the memory module of the paternal line system that needs the needs in first source of configuration server to be cloned, the mapping relations between the memory device that source of configuration server and the paternal line that need to clone are united; The disk file of the system of the paternal line on source server is made as to a read states.Then, determine on source server the type of the paternal line system that needs to be cloned, determine on source server the state that needs the paternal line system that is cloned; When the state of this paternal line system is run-stopping status, according to the type of paternal line system and the state of paternal system, the paternal line system that establishment need to be cloned on source server is at the snapshot document of mourning in silence of certain time point.
In a kind of specific embodiment of the present invention, in destination server, subsystem specific implementation process corresponding to generation is: at first, the data in the described snapshot document of mourning in silence are first written to subsystem corresponding to generation in destination server; Preserve the data that first write in corresponding memory device at destination server.Then, in the subsystem of the destination server generated, the related data in the second snapshot document is synchronized in this subsystem.
Fig. 2 is the process flow diagram of system cloning process in another kind of embodiment in the present invention.As described in Figure 2, the method comprises the steps.
In step 201, source server can be based on the PC server of X86-based.After determining source server, need on source server, build application platform, in this platform deploy application management module; The memory module of the paternal line system that the needs in the source of configuration server are cloned, this memory module can be ISCSI, NAS or FC storage; Source of configuration server and need the mapping relations between clone's the memory device of paternal line system, can pass through network connected reference application management module with this, and definite application platform deployment success whether.Finally, the disk file of the system of the paternal line on source server is made as to a read states.
In step 202, need to first determine on source server the type of the paternal line system that needs to be cloned, for example, this system is windows or linux.Secondly also to determine on source server the state that needs the paternal line system that is cloned; When the state of this paternal line system is run-stopping status, paternal line system for specified type, the paternal system of application management module creation is at the snapshot document of mourning in silence of certain time point, this snapshot document of mourning in silence is in paternal system disk file and memory file at certain time point duplicate timely, in order to use in follow-up clone's process.
In step 203, the paternal line system be cloned at the needs in source server according to the method in step 202 creates while mourning in silence snapshot document, in current parent's system, the disk file that can write is a read states, so while needing establishment the second snapshot document to mourn in silence snapshot document to be kept at establishment, the related data changed in the disk in paternal system and internal memory.Under original state, the size of this second snapshot document is generally 16MB, and along with source server increases the write operation of disk file.When in destination server, synchronously during this second snapshot document, all data in subsystem, file all can keep and source server in the paternal line system that is cloned of needs in data, file synchronization.
In step 204, the specific implementation process that generates corresponding subsystem in destination server is: the data in the snapshot document of mourning in silence are first written in destination server, be about in source server to need the partial data of the paternal line system that is cloned first to copy read-write in destination server, the data that copy out are exactly unite needed file and data of the paternal line that need to be cloned; Preserve the data that first write in corresponding memory device at destination server.
Related data in the second snapshot document is synchronized in destination server, because having recorded data in the snapshot document of mourning in silence in the second snapshot document generates in the process of subsystem in being written to destination server, the related data changed in the paternal line system that needs in source server are cloned, so in order to keep the consistance of clone front and back system, the data that change in clone's process need to be synchronized in the subsystem that destination server is corresponding, disk file and memory file after upgrading in subsystem corresponding to destination server have formed new subsystem jointly.
The snapshot document of mourning in silence of the paternal line system that the needs in the source server that deletion creates are cloned, the deleted snapshot document of mourning in silence has just just started as cloning disk file and the memory file of certain time point that paternal system creates, and the paternal line that the needs in source server are cloned subsystem corresponding to destination server of unifying all do not affect.
In step 205, after confirm that subsystem corresponding to destination server cloned successfully, the subsystem that this destination server is corresponding has possessed all application of uniting of paternal line that the needs in the source server are cloned.As need are cloned a plurality of subsystems, can clone a plurality of subsystems with the cloning process in the application to meet consumers' demand in the environment under cloud computing simultaneously.
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 comprises as lower unit.
The paternal line system be cloned for the needs for source server, create the snapshot document of mourning in silence, the snapshot document creating unit 301 of mourning in silence of the related data in the paternal line system that the described needs of certain time point of preservation are cloned in the described snapshot document of mourning in silence.
The second snapshot document creating unit 302 of the related data changed in the paternal line system be cloned for the needs after described the second snapshot document holding time point.
The processing unit 303 of mourn in silence snapshot document and the second snapshot document corresponding subsystem in the destination server generation that is used for completing according to described establishment.
The snapshot document creating unit 301 of mourning in silence is connected with processing unit 303, and the second snapshot document creating unit 302 is connected with processing unit 303.
In a kind of specific embodiment of the present invention, this device also comprises, the memory module of the paternal line system be cloned for the needs of source of configuration server, the mapping relations between the memory device that source of configuration server and the paternal line that needs the clone are united; The disk file of the system of the paternal line on source server is made as to the dispensing unit 304 of a read states.
After dispensing unit 304 completes above-mentioned configuration, the snapshot document creating unit 301 of mourning in silence is for determining on source server the type that needs the paternal line system that is cloned, determine on source server the state that needs the paternal line system that is cloned; When the state of described paternal system is run-stopping status, according to the type of described paternal system and the state of paternal system, create the mourn in silence snapshot document of paternal system at certain time point on source server.
In a kind of specific embodiment of the present invention, processing unit 303, specifically for after the snapshot document of mourning in silence has created, is first written to subsystem corresponding to generation in destination server by the data in the snapshot document of mourning in silence; Preserve the data that first write in corresponding memory device at destination server.Processing unit 303 also, for the subsystem generated at destination server, is synchronized to the related data in the second snapshot document in described subsystem.
Fig. 4 is the principle assumption diagram of system clone device in another kind of embodiment in the present invention.As described in Figure 4, this device comprises as lower unit.
The memory module of the paternal line system be cloned for the needs of source of configuration server, the mapping relations between the memory device that source of configuration server and the paternal line that needs the clone are united; The disk file of the system of the paternal line on source server is made as to the dispensing unit 401 of a read states.
Source server can be based on the PC server of X86-based.After determining source server, need on source server, build application platform, in this platform deploy application management module; The memory module of the paternal line system that the needs in the source of configuration server are cloned, this memory module can be ISCSI, NAS or FC storage; Source of configuration server and need the mapping relations between clone's the memory device of paternal line system, can pass through network connected reference application management module with this, and definite application platform deployment success whether.Finally, the disk file of the system of the paternal line on source server is made as to a read states.
The paternal line system be cloned for the needs in source server, create the snapshot document of mourning in silence, the snapshot document creating unit 402 of mourning in silence of the related data in the paternal line system that the described needs of certain time point of preservation are cloned in the described snapshot document of mourning in silence.
Need to first determine on source server the type of the paternal line system that needs to be cloned, for example, this system is windows or linux.Secondly also to determine on source server the state that needs the paternal line system that is cloned; When the state of this paternal line system is run-stopping status, paternal line system for specified type, the paternal system of application management module creation is at the snapshot document of mourning in silence of certain time point, this snapshot document of mourning in silence is in paternal system disk file and memory file at certain time point duplicate timely, in order to use in follow-up clone's process.
The second snapshot document creating unit 403 of the related data changed in the paternal line system be cloned for the described needs after described the second snapshot document is preserved described time point.
The paternal line system that the snapshot document creating unit 402 of mourning in silence is cloned at the needs in source server creates while mourning in silence snapshot document, in current parent's system, the disk file that can write is a read states, so while needing establishment the second snapshot document to mourn in silence snapshot document to be kept at establishment, the related data changed in the disk in paternal system and internal memory.Under original state, the size of this second snapshot document is generally 16MB, and along with source server increases the write operation of disk file.When in destination server, synchronously during this second snapshot document, all data in subsystem, file all can keep and source server in the paternal line system that is cloned of needs in data, file synchronization.
Mourn in silence snapshot document and the second snapshot document completed according to described establishment generates the processing unit 404 of corresponding subsystem in destination server.
The specific implementation process that generates corresponding subsystem in destination server is: the data in the snapshot document of mourning in silence are first written in destination server, be about in source server to need the partial data of the paternal line system that is cloned first to copy read-write in destination server, the data that copy out are exactly unite needed file and data of the paternal line that need to be cloned; Preserve the data that first write in corresponding memory device at destination server.
Related data in the second snapshot document is synchronized in destination server, because having recorded data in the snapshot document of mourning in silence in the second snapshot document generates in the process of subsystem in being written to destination server, the related data changed in the paternal line system that needs in source server are cloned, so in order to keep the consistance of clone front and back system, the data that change in clone's process need to be synchronized in the subsystem that destination server is corresponding, disk file and memory file after upgrading in subsystem corresponding to destination server have formed new subsystem jointly.
The snapshot document of mourning in silence of the paternal line system that the needs in the source server that deletion creates are cloned, the deleted snapshot document of mourning in silence has just just started as cloning disk file and the memory file of certain time point that paternal system creates, and the paternal line that the needs in source server are cloned subsystem corresponding to destination server of unifying all do not affect.
In sum, in technical scheme of the present invention, the paternal line system be cloned by the needs in source server creates mourn in silence snapshot document and the second snapshot document, and mourn in silence snapshot document and the second snapshot document that establishment is completed are read and write subsystem corresponding to generation in destination server, the method can the maintenance source the external service of system in service do not interrupt, system in former framework can be cloned on new hardware again, and clone's speed is fast, success ratio is high.
The present invention, owing to having used the api interface function, need to not dispose the agency on each virtual machine, only need, at the virtual clone software plug-in unit of independent management server deploy, therefore aspect performance and clone's cost, obvious advantage arranged.In hardware platform clone's process, at first do not need to stop Cluster Service when system, keep being applied on independent virtual machine moving, thereby the business that ensured is not interrupted; Secondly by virtualized clone's instrument, whole source memory device is done to online reflection level clone, then the file cloned is returned under the purpose platform, thereby realized the cloning function of application from source platform to the purpose platform.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., all be included in protection scope of the present invention.
Claims (9)
1. a system cloning process, is characterized in that, the method comprises:
The paternal line system be cloned for the needs in source server, create the snapshot document of mourning in silence, the related data in the paternal line system that the described needs of preservation fixed time point are cloned in the described snapshot document of mourning in silence;
Create the second snapshot document, the related data changed in the paternal line system that the described needs in described the second snapshot document after the described time point of preservation are cloned;
Mourn in silence snapshot document and the second snapshot document that according to described establishment, complete generate corresponding subsystem in destination server.
2. method according to claim 1, is characterized in that, the described paternal line system be cloned for the needs in source server creates the snapshot document of mourning in silence and comprises:
Determine on source server the type of the paternal line system that needs to be cloned, determine on source server the state that needs the paternal line system that is cloned;
When the state of described paternal system is run-stopping status,
According to the type of described paternal system and the state of paternal system, create the paternal system snapshot document of mourning in silence at the appointed time on source server.
3. method according to claim 2, is characterized in that, before snapshot document is mourned in silence in establishment, the method also comprises:
The memory module of the paternal line system that the needs in the source of configuration server are cloned, the mapping relations between the memory device that source of configuration server and the paternal line that need to clone are united;
The disk file of the system of the paternal line on source server is made as to a read states.
4. method according to claim 1, is characterized in that, described mourn in silence snapshot document and the second snapshot document completed according to described establishment generates corresponding subsystem and comprise in destination server:
Data in the described snapshot document of mourning in silence are first written to subsystem corresponding to generation in destination server, preserve the data that first write at destination server in corresponding memory device;
In the subsystem generated of destination server, the related data in the second snapshot document is synchronized in described subsystem.
5. a system clone device, is characterized in that, this device comprises:
The paternal line system be cloned for the needs for source server, create the snapshot document of mourning in silence, the snapshot document creating unit of mourning in silence of the related data in the paternal line system that the described needs of certain time point of preservation are cloned in the described snapshot document of mourning in silence;
The second snapshot document creating unit of the related data changed in the paternal line system be cloned for the described needs after described the second snapshot document is preserved described time point;
The processing unit of mourn in silence snapshot document and the second snapshot document corresponding subsystem in the destination server generation that is used for completing according to described establishment;
The described snapshot document creating unit of mourning in silence is connected with processing unit, and described the second snapshot document creating unit is connected with processing unit.
6. device according to claim 5, is characterized in that,
The described snapshot document creating unit of mourning in silence is for determining on source server the type that needs the paternal line system that is cloned, determine on source server the state that needs the paternal line system that is cloned; When the state of described paternal system is run-stopping status, according to the type of described paternal system and the state of paternal system, create the mourn in silence snapshot document of paternal system at certain time point on source server.
7. device according to claim 6, is characterized in that, this device also comprises:
The memory module of the paternal line system be cloned for the needs of source of configuration server, the mapping relations between the memory device that source of configuration server and the paternal line that needs the clone are united; The disk file of the system of the paternal line on source server is made as to the dispensing unit of a read states.
8. device according to claim 7, it is characterized in that, described processing unit is for after the described snapshot document of mourning in silence has created, data in the described snapshot document of mourning in silence are first written to subsystem corresponding to generation in destination server, preserve the data that first write at destination server in corresponding memory device.
9. device according to claim 8, is characterized in that, described processing unit also, for the subsystem generated at destination server, is synchronized to the related data in the second snapshot document in described subsystem.
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| CN104239444A (en) * | 2014-09-01 | 2014-12-24 | 上海爱数软件有限公司 | Consistent data protection and consistent state capture method for Oracle databases |
| 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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| CN103425550B (en) | 2016-11-23 |
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