CN109710375A - A method of separation virtual machine system subregion - Google Patents
A method of separation virtual machine system subregion Download PDFInfo
- Publication number
- CN109710375A CN109710375A CN201811487265.3A CN201811487265A CN109710375A CN 109710375 A CN109710375 A CN 109710375A CN 201811487265 A CN201811487265 A CN 201811487265A CN 109710375 A CN109710375 A CN 109710375A
- Authority
- CN
- China
- Prior art keywords
- disk
- virtual machine
- subregion
- partitioning
- cylinder
- 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.)
- Withdrawn
Links
Abstract
The present invention relates to cloud computing and technical field of virtualization, especially a kind of method for separating virtual machine system subregion.The method of the present invention is that the magnetic disk of virtual machine file where needing system partitioning to be separated is converted to raw format, then the partitioning scenario of this disk is checked, if the cylinder of system partitioning to be separated and other subregions is overlapped, then the subregion other than system partitioning in disk is deleted, it then is new disk system partitioning copy, this disk is finally converted into required disc format according to different virtualizations, and starts virtual machine using this disk as starting disk.The present invention when solving the separation of a virtual machine system subregion can not batch operation, can not can be used in the case where not can enter virtual machine system the problem of separation system subregion in virtual machine external separation system subregion.
Description
Technical field
The present invention relates to cloud computing and technical field of virtualization, especially a kind of method for separating virtual machine system subregion.
Background technique:
In cloud computing, usually one piece of disk place system subregion puts data using other disks.It can accomplish to lead in this way
It crosses and changes system disk, that is, the disk for the system partitioning that changes the outfit, the function of carrying out switching system, go back original system also facilitates packing to be mirrored into, and uses
To create other virtual machines.
Disk can be understood as one piece of hard disk of computer, and system partitioning can be understood as the C disk inside windows.
It is packaged mirror image, after being exactly modified to virtual machine, using system disk as template, new mirror is created with this template
Picture.
Such as office is mounted in C disk inside windows, then system disk has been packaged into mirror image.Then this is used
A mirror image removes creation virtual machine, then just having office inside new virtual machine, not needing to install again.
But in some old virtual machines, or due to operation is nonstandard；It can be in the disk for being filled with system partitioning
On, and subregion has been divided, to fill data.Such as D disk has been divided to fill picture etc. again on this block disk.
This when, if to do replacement system disk, this partial data will lose.Or virtual machine is packaged into mirror
Picture will all be placed into these data inside mirror image.Both of which is unacceptable.So system partitioning point
From.
Separation system subregion common practices is into virtual machine, using the p2v tool of tool, such as xenserver,
System disk changes into a file, then this file is taken above physical machine.These operations are all face operations on a virtual machine.
The problem of operating in this way has:
First is that if there is many platform virtual machines will operate, it is necessary to which a tableland enters virtual machine and operated.Even if
It is a virtual machine, repetitive manual is also wanted to carry out these operations.
Second is that if it is not known that the case where virtual machine password or user are not intended to the information and data of leakage virtual machine
Under cannot be introduced into virtual machine, just have no idea to operate.
If it is not known that password, can also be mounted to virtual machine by the mini system such as winpe and be operated again, but such as
Fruit is that user is less comfortable with you to enter virtual machine, is afraid of information leakage, is then not to be allowed into virtual machine.
Third is that currently existing scheme, after being converted using software, the file of unloading is temporarily present inside virtual machine, if empty
Insufficient space in quasi- machine, then can not be operated.
Fourth is that after being converted using software, file there are in virtual machine, then also needing to pass to physical machine from virtual machine,
Time-consuming will greatly increase.
Summary of the invention
Present invention solves the technical problem that being to provide a kind of method for separating virtual machine system subregion, realize in physical machine
On the disk file of virtual machine is operated.
The technical solution that the present invention solves above-mentioned technical problem is:
The method is that the magnetic disk of virtual machine file where needing system partitioning to be separated is converted to raw format, so
The partitioning scenario of this disk is checked afterwards, if the cylinder of system partitioning to be separated and other subregions is overlapped, being in disk
Subregion other than system subregion is deleted, and is then new disk system partitioning copy, finally this disk according to different virtualizations
It is converted into required disc format, and starts virtual machine using this disk as starting disk.
The method uses disk tools, operates to the disk of raw format, checks the subregion feelings of this disk file
Condition；The tool is fdisk order.
The cylinder overlapping is checked by the output of fdisk order；The end position of system partitioning and data subregion
Starting position is in the same cylinder.
The method calculates data block size and number, system partitioning is then copied out work according to cylinder information
For new disk.
Whole operation of the invention is all to operate in physical machine to the disk file of virtual machine.It does not need to enter void
Quasi- machine is kept completely separate with the system of virtual machine, disk size, network condition these factors completely, is not influenced by these factors.It can
Grasped automatically to all designated virtual machines in same physical machine automatically by writing script file in physical machine
Make, does not need an artificial platform virtual machine and operated.And the virtual machine of either what operating system, it is all same foot
This operation.
Detailed description of the invention
The following further describes the present invention with reference to the drawings:
Fig. 1 is flow chart of the present invention.
Specific embodiment
As shown in Figure 1, the implementation steps of the method for the present invention are as follows:
Step 1: the magnetic disk of virtual machine file where needing system partitioning to be separated is converted to raw format；
There are above physical machine for the disk file of virtual machine.
Raw format is changed into, is to leave behind this naked format of raw to remove other all information, it can be in physics
The corresponding partition information of this file is seen on machine.
Step 2: using disk tools, the disk of raw format is operated, checks the partitioning scenario of this disk file；
Such as with fdisk order, so that it may see the partitioning scenario of raw formatted file.
Step 3: if the cylinder of system partitioning to be separated and other subregions is overlapped, then follow the steps 4:
Cylinder overlapping can be can see by the output of fdisk order, the end position and data subregion of system partitioning
Starting position on the same cylinder.
It is to be operated according to cylinder for unit because can't see smaller granularity, when operation.If number
It is separated according to inside raw file, is separated according to how many a cylinders.If cylinder is overlapped, the knot of system partitioning
While beam cylinder separates, the data of the data subregion on this cylinder of a part can be also separated.This can be directly resulted in
Entire disk is unavailable.
Step 4: using disk partition tool, other subregions other than system partitioning in raw disk file are all deleted；
As talking about above, it is unavailable that cylinder overlapping will lead to the disk separated, so in addition to system point
Subregion other than area is all deleted.Accordingly even when the entire cylinder data of cylinder that system partitioning terminates all are exported when copy
?.Only more spaces of a part of blank, do not interfere with whole system partitioning operation yet.
Step 5: checking cylinder information, calculate data block size and number, then system partitioning is copied out as new
Disk；
Because having gone out other than dress number system subregion before this block disk, it is also possible to have other data subregions, so entire magnetic
Disk file is very big.And system partitioning is now only needed, so only system partitioning is copied out.
By the available system partitioning of disk tools, the cylinder of beginning, the cylinder of end thus can be only this portion
Cylinder is divided to copy out.Form a new disk file.
Step 6: new system disk being converted into required disc format according to different virtualizations, and using this disk as starting
Disk starts virtual machine.
Disk file after copying out is raw format, and there is no the characteristics such as compression, is also not necessarily suitable all
Virtualization.So this disk file is changed into format required for corresponding virtualize.
Claims (5)
1. a kind of method for separating virtual machine system subregion, it is characterised in that: the method is that handle needs system point to be separated
Magnetic disk of virtual machine file where area is converted to raw format, then checks the partitioning scenario of this disk, if system to be separated
The cylinder of subregion and other subregions is overlapped, then the subregion other than system partitioning in disk is deleted, then system partitioning is copied
For new disk, this disk is finally converted into required disc format according to different virtualizations, and using this disk as starting magnetic
Disk startup virtual machine.
2. according to the method described in claim 1, it is characterized by: the method uses disk tools, to the magnetic of raw format
Disk is operated, and checks the partitioning scenario of this disk file；The tool is fdisk order.
3. according to the method described in claim 1, it is characterized by: the cylinder overlapping is looked by the output of fdisk order
It sees；The end position of system partitioning and the starting position of data subregion are in the same cylinder.
4. according to the method described in claim 2, it is characterized by: the cylinder overlapping is looked by the output of fdisk order
It sees；The end position of system partitioning and the starting position of data subregion are in the same cylinder.
5. method according to any one of claims 1 to 4, it is characterised in that: the method is calculated according to cylinder information
Then data block size and number is copied out system partitioning as new disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487265.3A CN109710375A (en) | 2018-12-06 | 2018-12-06 | A method of separation virtual machine system subregion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811487265.3A CN109710375A (en) | 2018-12-06 | 2018-12-06 | A method of separation virtual machine system subregion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109710375A true CN109710375A (en) | 2019-05-03 |
Family
ID=66254668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811487265.3A Withdrawn CN109710375A (en) | 2018-12-06 | 2018-12-06 | A method of separation virtual machine system subregion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109710375A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806922A (en) * | 2019-10-14 | 2020-02-18 | 广州微算互联信息技术有限公司 | Script execution method, device, equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5675769A (en) * | 1995-02-23 | 1997-10-07 | Powerquest Corporation | Method for manipulating disk partitions |
| US6167494A (en) * | 1998-04-28 | 2000-12-26 | International Business Machine Corporation | Method and system for recovering from operating system failure |
| CN102354302A (en) * | 2011-09-28 | 2012-02-15 | 奇智软件（北京）有限公司 | Method and device for erasing disk |
| CN103383648A (en) * | 2012-12-21 | 2013-11-06 | 北京安天电子设备有限公司 | Method and system for compressible virtual machine magnetic disk size recycling |
| CN105718377A (en) * | 2014-12-05 | 2016-06-29 | 华为技术有限公司 | Method and apparatus for copying magnetic disk data in virtual application |
-
2018
- 2018-12-06 CN CN201811487265.3A patent/CN109710375A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5675769A (en) * | 1995-02-23 | 1997-10-07 | Powerquest Corporation | Method for manipulating disk partitions |
| US6167494A (en) * | 1998-04-28 | 2000-12-26 | International Business Machine Corporation | Method and system for recovering from operating system failure |
| CN102354302A (en) * | 2011-09-28 | 2012-02-15 | 奇智软件（北京）有限公司 | Method and device for erasing disk |
| CN103383648A (en) * | 2012-12-21 | 2013-11-06 | 北京安天电子设备有限公司 | Method and system for compressible virtual machine magnetic disk size recycling |
| CN105718377A (en) * | 2014-12-05 | 2016-06-29 | 华为技术有限公司 | Method and apparatus for copying magnetic disk data in virtual application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806922A (en) * | 2019-10-14 | 2020-02-18 | 广州微算互联信息技术有限公司 | Script execution method, device, equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3138010B1 (en) | System and method for optimized signature comparisons and data replication | |
| CN104298559B (en) | The method and device of physical host system virtualization | |
| US8825936B2 (en) | Systems and methods for increasing data volume sparseness | |
| US11403146B2 (en) | Method, apparatus, and server for managing image across cloud servers | |
| US10437487B2 (en) | Prioritized backup operations for virtual machines | |
| US10574524B2 (en) | Increasing reusability of and reducing storage resources required for virtual machine images | |
| US9792075B1 (en) | Systems and methods for synthesizing virtual hard drives | |
| US20110078681A1 (en) | Method and system for running virtual machine image | |
| KR20110050452A (en) | Recovery of a computer that includes virtual disks | |
| CN105573830B (en) | A kind of virtual machine migration method | |
| CN103218227B (en) | The method of compatible multiple file system and device on a kind of Android device built-in hard disk | |
| EP3474143B1 (en) | Method and apparatus for incremental recovery of data | |
| WO2016065956A1 (en) | Method and device for creating virtual machine | |
| JP7012074B2 (en) | Virtual disk expansion method and equipment | |
| CN109995814A (en) | Moving method and device, communication equipment, the storage medium of cloud host resource | |
| CN113312155B (en) | Virtual machine creation method, device, equipment, system and computer program product | |
| CN109739617A (en) | A method of across the cloud migration of Linux virtual machine based on cloudy system under the overall leadership | |
| CN106126115A (en) | A kind of method and device of the disk of EVM(extended virtual machine) | |
| US9459883B2 (en) | Modifying disk images | |
| CN109710375A (en) | A method of separation virtual machine system subregion | |
| CN106815067A (en) | The online moving method of virtual machine, device with I/O virtualizations | |
| US11263082B2 (en) | Data recovery of guest virtual machines | |
| CN101645048B (en) | Method for realizing computer virtualized evidence obtaining | |
| CN109615668A (en) | Digital picture based on component is synchronous | |
| CN106021373A (en) | File updating method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190503 |