CN107807842A - A kind of online cloning process of virtual machine - Google Patents
A kind of online cloning process of virtual machine Download PDFInfo
- Publication number
- CN107807842A CN107807842A CN201710991181.2A CN201710991181A CN107807842A CN 107807842 A CN107807842 A CN 107807842A CN 201710991181 A CN201710991181 A CN 201710991181A CN 107807842 A CN107807842 A CN 107807842A
- Authority
- CN
- China
- Prior art keywords
- virtual machine
- snapshot
- data
- online
- disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
-
- 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
- G06F2009/45562—Creating, deleting, cloning virtual machine instances
Abstract
The present invention relates to virtual machine technique field, particularly a kind of online cloning process of virtual machine.Methods described comprises the following steps：Obtain the disk that inquiry virtual machine uses and online snapshot is carried out to disk, snapshot data is copied out from snapshot again, the snapshot data copied out is merged into new virtual machine with source data that snapshot relies on and uses data in magnetic disk, then the online snapshot of original virtual machine is deleted, the configuration file of new virtual machine is configured and starts new virtual machine.The online cloning process of virtual machine of the present invention, in the case where not influenceing the regular traffic running situation of original virtual machine, extends the virtual machine of same system and data online.
Description
Technical field
The present invention relates to virtual machine technique field, particularly a kind of online cloning process of virtual machine.
Background technology
With the popularization of cloud computing, many applications are migrated on virtual machine.Operation system on virtual machine is also continuous
Development, many scenes need to expand the support capacity of original operation system.Traditional mode is to give virtual machine addition CPU, interior
The resource such as deposit；But this can also run into the bottleneck limitation of host resource.If its operation system supports distributed architecture, extend
New deploying virtual machine identical application system is a kind of better selection.Certain this deployment way, if from old void
New virtual machine is cloned on plan machine, the workload of operation system operation maintenance personnel can be greatly reduced, without disposing business again from zero
System, the cans such as the network parameter of local directed complete set virtual machine host are only needed to activate business the ability of system.It is and traditional virtual
Machine clonal fashion, it is by virtual machine power-off operation, then copies out the disk file that virtual machine needs to use.This mode is certain
The operation of original operation system can be influenceed in degree.
The content of the invention
Present invention solves the technical problem that being to provide a kind of virtual machine online cloning process, original virtual machine is not being influenceed
Regular traffic running situation under, extend the virtual machine quantity of same system and data, lifted original business computing capability and
Reliability.
The present invention solve above-mentioned technical problem technical scheme be：
Described method comprises the following steps：
(1) obtain the disk that virtual machine uses and online snapshot is carried out to disk；
(2) snapshot data is copied out from snapshot；
(3) source data that the snapshot data copied out and snapshot rely on is merged into operation, be merged into new virtual
Machine uses data in magnetic disk；
(4) and then the online snapshot of original virtual machine is deleted, recovers the disc information of former virtual machine；
(5) configure the configuration file of new virtual machine and start new virtual machine.
The disk that virtual machine uses includes system disk and data disks, and the described disk used supports the COW of snapshot
(copy-on-write) technology.It is convenient that online snapshot is carried out to data in magnetic disk.
The whole copy procedure that snapshot data is copied out from snapshot is continuous, and original snapshot data is protected in copy procedure
Hold constant.
The data in magnetic disk that the new virtual machine uses is uses caused by the processes such as online snapping technique, its data in magnetic disk
As the data in magnetic disk being cloned before virtual machine snapshot；Network card configuration in its configuration file with original virtual machine is become
More, the network conflict of virtual machine for avoiding new virtual machine and being cloned.
The present invention proposes the online cloning process of virtual machine, is not influenceing the regular traffic system operation feelings of original virtual machine
Under condition, the virtual machine quantity of same system and data is extended online, lifts the computing capability and reliability of original business.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings：
Fig. 1 is the flow chart of the inventive method.
Embodiment
Cloned with KVM virtual machine, exemplified by the disk storages of KVM virtual machines is on distributed type assemblies, illustrated herein：
1st, inquire about the disk that virtual machine uses and online snapshot is carried out to disk
(1) disk that inquiry virtual machine uses
It can be seen that the disk file that virtual machine uses is /instances/disk/ from configuration file
28d0bac727c14e129aafceab52066ae7/i-FC3A3DFC/i-FC3A3D FC_snap。
(2) snapshot is carried out to disk file
ls-al/instances/disk/28d0bac727c14e129aafceab52066ae7/i-FC3A3DFC/i-
FC3A3D FC_snap check that corresponding ceph file is
volumes/volume-6cfdac53-98b9-4882-a3c4-8cf25249fae4
Volumes/volume-6cfdac53-98b9-4882-a3c4-8cf25249fae4 is carried out using rbd orders
The online disk snapshot of virtual machine, snapshot document are entitled
volumes/volume-6cfdac53-98b9-4882-a3c4-8cf25249fae4@snapshot
2nd, snapshot data is copied out
Using rbd orders from
Copied in volumes/volume-6cfdac53-98b9-4882-a3c4-8cf25249fae4@snapshot snapshots
Shellfish goes out snapshot data, the entitled volumes/volume-1cfdac52-98b9-4882-a3c4- of snapshot new file
9cf25249faec
3rd, using rbd orders by snapshot data
Volumes/volume-1cfdac52-98b9-4882-a3c4-9cf25249faec and source data
Volumes/volume-6cfdac53-98b9-4882-a3c4-8cf25249fae4 is merged, and is merged and is produced
New data in magnetic disk volumes/volume-1cfdac52-98b9-4882-a3c4-9cf25249faec.
4th, deleted using rbd orders
Volumes/volume-6cfdac53-98b9-4882-a3c4-8cf25249fae4@snapshot snapshots, recover
The disk logical relation of former virtual machine.
5th, configure new virtual machine configuration and start virtual machine
Wherein/dev/rbd15 is ceph volumes/
Volume-1cfdac52-98b9-4882-a3c4-9cf25249faec maps block device.
Embodiments described above is only part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, those of ordinary skill in the art are not making the obtained scheme of substantive creation, are belonging to the present invention
The scope of protection.
Claims (5)
1. a kind of online cloning process of virtual machine, it is characterised in that described method comprises the following steps：
(1) obtain the disk that virtual machine uses and online snapshot is carried out to disk；
(2) snapshot data is copied out from snapshot；
(3) source data that the snapshot data copied out and snapshot rely on is merged into operation, being merged into new virtual machine makes
Use data in magnetic disk；
(4) and then the online snapshot of original virtual machine is deleted, recovers the disc information of former virtual machine；
(5) configure the configuration file of new virtual machine and start new virtual machine.
2. according to the method for claim 1, it is characterised in that the disk that virtual machine uses includes system disk and data disks,
The described disk used supports the COW technologies of snapshot.
3. according to the method for claim 1, it is characterised in that the whole copy procedure of snapshot data is copied out from snapshot
To be continuous, original snapshot data is kept constant in copy procedure.
4. according to the method for claim 2, it is characterised in that the whole copy procedure of snapshot data is copied out from snapshot
To be continuous, original snapshot data is kept constant in copy procedure.
5. according to the method described in any one of Claims 1-4, it is characterised in that the new virtual machine configuration neutralizes
The network card configuration of original virtual machine is changed, the network conflict of virtual machine for avoiding new virtual machine and being cloned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991181.2A CN107807842A (en) | 2017-10-23 | 2017-10-23 | A kind of online cloning process of virtual machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710991181.2A CN107807842A (en) | 2017-10-23 | 2017-10-23 | A kind of online cloning process of virtual machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107807842A true CN107807842A (en) | 2018-03-16 |
Family
ID=61585149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710991181.2A Withdrawn CN107807842A (en) | 2017-10-23 | 2017-10-23 | A kind of online cloning process of virtual machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107807842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112181596A (en) * | 2020-10-10 | 2021-01-05 | 济南浪潮数据技术有限公司 | Virtual machine cloning method, device, equipment and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010056748A1 (en) * | 2008-11-11 | 2010-05-20 | Netapp, Inc. | Cloning virtual machines |
| CN103425550A (en) * | 2013-07-11 | 2013-12-04 | 济南万联信息科技有限公司 | System cloning method and device |
| CN104375877A (en) * | 2014-10-15 | 2015-02-25 | 国云科技股份有限公司 | Virtual machine online snapshot generating and deleting method |
| CN104468734A (en) * | 2014-11-18 | 2015-03-25 | 国云科技股份有限公司 | Virtual cluster expanding method based on cloning |
| CN104486392A (en) * | 2014-12-05 | 2015-04-01 | 国云科技股份有限公司 | Virtual machine image packaging method with low storage space |
| CN106354547A (en) * | 2016-08-31 | 2017-01-25 | 浪潮电子信息产业股份有限公司 | BS (browser/server) based virtual machine establishment realizing method |
| CN106775957A (en) * | 2017-01-20 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of virtual machine snapshot implementation method |
-
2017
- 2017-10-23 CN CN201710991181.2A patent/CN107807842A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010056748A1 (en) * | 2008-11-11 | 2010-05-20 | Netapp, Inc. | Cloning virtual machines |
| CN103425550A (en) * | 2013-07-11 | 2013-12-04 | 济南万联信息科技有限公司 | System cloning method and device |
| CN104375877A (en) * | 2014-10-15 | 2015-02-25 | 国云科技股份有限公司 | Virtual machine online snapshot generating and deleting method |
| CN104468734A (en) * | 2014-11-18 | 2015-03-25 | 国云科技股份有限公司 | Virtual cluster expanding method based on cloning |
| CN104486392A (en) * | 2014-12-05 | 2015-04-01 | 国云科技股份有限公司 | Virtual machine image packaging method with low storage space |
| CN106354547A (en) * | 2016-08-31 | 2017-01-25 | 浪潮电子信息产业股份有限公司 | BS (browser/server) based virtual machine establishment realizing method |
| CN106775957A (en) * | 2017-01-20 | 2017-05-31 | 郑州云海信息技术有限公司 | A kind of virtual machine snapshot implementation method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112181596A (en) * | 2020-10-10 | 2021-01-05 | 济南浪潮数据技术有限公司 | Virtual machine cloning method, device, equipment and storage medium |
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| WW01 | Invention patent application withdrawn after publication | ||
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Application publication date: 20180316 |