CN103440111A - Method for expanding disk space of virtual machines, host machines and platform - Google Patents
Method for expanding disk space of virtual machines, host machines and platform Download PDFInfo
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- CN103440111A CN103440111A CN2013103374100A CN201310337410A CN103440111A CN 103440111 A CN103440111 A CN 103440111A CN 2013103374100 A CN2013103374100 A CN 2013103374100A CN 201310337410 A CN201310337410 A CN 201310337410A CN 103440111 A CN103440111 A CN 103440111A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/4557—Distribution of virtual machine instances; Migration and load balancing
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45583—Memory management, e.g. access or allocation
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Abstract
The invention discloses a method for expanding the disk space of virtual machines, host machines and a platform, wherein the method for expanding the disk space of the virtual machines comprises the steps of installing a virtual machine operating system in a first LVM (Logical Volume Manager) partition and forming a mirror image document of data in the first LVM partition; creating a second LVM partition which has the same size with the mirror image document, transmitting the mirror image document to the second LVM partition, and starting the virtual machines on the host machines by utilizing the second LVM partition; in need of expanding the disk space of the virtual machines, expanding the disk space of the virtual machines by utilizing the current disk space of the host machines. By the adoption of the method for expanding the disk space of the virtual machines, the host machines and the platform, the disk space of the virtual machines can be dynamically managed, so that the cost of the cloud computing virtualization platform is lowered and the efficiency is improved.
Description
Technical field
The present invention relates to computer technology, relate in particular to a kind of extended method, host and platform of virtual machine disk space.
Background technology
Along with the develop rapidly of computer technology, relating to virtual and platforms these two new technologies of cloud computing is that the cloud computing virtual platform has also obtained using widely.
Cloud computing virtual platform of the prior art, this platform software is concentrated various application software to be deployed on the cloud computing virtual platform, thereby can provide virtual application and virtual desktop to the user.Wherein, the method for the storage space of cloud computing virtual platform managing virtual machines is to utilize the independently storage space of storage device management virtual machine.As shown in Figure 1, cloud computing virtual platform 10 comprises host 11, host 12 and memory device 13, and wherein, host 11 comprises virtual machine 111, virtual machine 112 and virtual machine 113, and host 12 comprises virtual machine 121, virtual machine 122 and virtual machine 123.This cloud computing virtual platform 10 is managed the storage space of a plurality of virtual machines on host 11 and host 12 by memory device 13 independently.
But above-mentioned cloud computing virtual platform needs independently memory device and storage management software corresponding to this memory device, makes this platform cost very high, efficiency is very low.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of extended method, host and platform of virtual machine disk space, make when needs EVM(extended virtual machine) disk space, utilize the current disk space of host to be expanded the disk space of virtual machine, the disk space of managing virtual machines dynamically, thus reduce the cloud computing virtual platform cost, raise the efficiency.
First aspect, the embodiment of the present invention provides a kind of extended method of virtual machine disk space, and described method comprises:
VME operating system is arranged in the first Logical Disk volume management LVM subregion, and forms the image file of the data in a described LVM subregion;
Create the two LVM subregion identical with described image file size, described image file is transferred to described the 2nd LVM subregion, and utilize described the 2nd LVM subregion to be enabled in the virtual machine on host;
When needs are expanded described virtual machine disk space, utilize the current disk space of described host to be expanded the disk space of described virtual machine.
Second aspect, the embodiment of the present invention provides a kind of host, and described host comprises:
The image file generation unit, for VME operating system being arranged on to the first Logical Disk volume management LVM subregion, and form the image file of the data in a described LVM subregion;
The virtual machine activation unit, for creating the two LVM subregion identical with described image file size, transfer to described the 2nd LVM subregion by described image file, and utilize described the 2nd LVM subregion to be enabled in the virtual machine on host;
Virtual machine disk space expanding element, for when needs are expanded described virtual machine disk space, utilize the current disk space of described host to be expanded the disk space of described virtual machine.
The third aspect, the embodiment of the present invention also provides a kind of cloud computing virtual platform, and it comprises at least one host as described as second aspect.
The embodiment of the present invention is by the first logical volume that VME operating system is arranged on to Logical Disk volume management LVM, and the first logical volume is formed to image file through processing; Create second logical volume identical with the image file size and the LVM subregion corresponding with the second logical volume, image file is saved in the LVM subregion, and utilizes the LVM subregion to be enabled in the virtual machine on host; When needs EVM(extended virtual machine) disk space, utilize the current disk space of host to be expanded the disk space of virtual machine, make the host disk space of managing virtual machines dynamically, thus reduce the cloud computing virtual platform cost, raise the efficiency.
The accompanying drawing explanation
Fig. 1 is the Organization Chart of cloud computing virtual platform in prior art;
Fig. 2 is the process flow diagram of extended method of the virtual machine disk space of first embodiment of the invention;
Fig. 3 is the structural representation of the host of second embodiment of the invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, only show part related to the present invention in accompanying drawing but not full content.
Fig. 2 is the process flow diagram of extended method of the virtual machine disk space of first embodiment of the invention.As shown in Figure 2, described method comprises:
Step 210, VME operating system is arranged in the first Logical Disk volume management (Logical Volume Manager, LVM) subregion, and forms the image file of the data in a LVM subregion.
Particularly, LVM is a kind of mechanism under the Linux environment, disk partition managed, and it is the logical layer be based upon on hard disk and subregion, improves the dirigibility of disk partition management.VME operating system is arranged in a LVM subregion, and by the dd order by the data transmission in a LVM subregion out, and forms the image file of a piece (block) form.Wherein, block is minimum memory and the processing unit in database, and dd is an order under Linux/UNIX, and its effect is with specifying big or small file of block copy, and carries out the conversion of appointment in copy.
Step 220, the establishment two LVM subregion identical with the image file size, transfer to the 2nd LVM subregion by described image file, and utilize the 2nd LVM subregion to be enabled in the virtual machine on host.
Above-mentioned steps 210 and step 220 are the processes that start the virtual machine on host, be specially: VME operating system is arranged in a LVM subregion, and by the dd order by the data transmission in a LVM subregion out, and form the image file of a block form, create again two a LVM subregion identical with the size of image file, and by the dd order by above-mentioned image file transfer to the two LVM subregions, directly utilize the 2nd LVM subregion to start virtual machine.
Step 230, when needs EVM(extended virtual machine) disk space, utilize the current disk space of host to be expanded the disk space of virtual machine.
Particularly, when needs EVM(extended virtual machine) disk space, utilize the subregion expansion disk space of LVM order indication virtual machine on host on host, and on virtual machine, utilize disk commands that the disk space after described expansion is carried out to subregion.Such as, the process of the virtual machine disk space of needs expansion 20G is as follows:
The LVM order of carrying out on host is:
lvresize-L+20G/dev/vg1000/lvol0
Wherein ,+20G means to increase 20G, and/dev/vg1000/lvol0 is the subregion of virtual machine on host.
Utilize disk commands respectively on virtual machine:
(1) use fdisk-l to view the virtual machine disk space of the 20G of new expansion;
(2) use fdisk to divide subregion;
(3) format subregion with the mkfs order;
(4) with the mount order, subregion is mounted to the path needed and goes down, as/home/test.
In another embodiment, in step 210, also comprise after in VME operating system being arranged on to a LVM subregion: the virtual machine parameter is set, therefore the data in a LVM subregion also comprise after arranging the virtual machine parameter obtained, then form the image file of the data in a LVM subregion.
Therefore, the extended method of the virtual machine disk space that the above embodiment of the present invention provides, by VME operating system being arranged in the first subregion, and form the image file of the data in a LVM subregion, create the two LVM subregion identical with the image file size, described image file is transferred to the 2nd LVM subregion, and utilize the 2nd LVM subregion to be enabled in the virtual machine on host, when needs EVM(extended virtual machine) disk space, utilize the current disk space of host to be expanded the disk space of virtual machine, make the host disk space of managing virtual machines dynamically, thereby reduce the cost of cloud computing virtual platform, raise the efficiency.
Fig. 3 is the structural representation of the host of second embodiment of the invention.This host is for carrying out the extended method of virtual machine disk space of first embodiment of the invention.As shown in Figure 3, described host 30 comprises: image file generation unit 31, virtual machine activation unit 32 and virtual machine disk space expanding element 33.
Image file generation unit 31 is for VME operating system being arranged on to the first Logical Disk volume management LVM subregion, and forms the image file of the data in a described LVM subregion; Virtual machine activation unit 32, for creating the two LVM subregion identical with described image file size, transfers to described the 2nd LVM subregion by described image file, and utilizes described the 2nd LVM subregion to be enabled in the virtual machine on host; Virtual machine disk space expanding element 33, for when needs are expanded described virtual machine disk space, utilizes the current disk space of described host to be expanded the disk space of described virtual machine.
In one embodiment, described virtual machine disk space expanding element 33 is also for utilize the subregion expansion disk space of the described virtual machine of LVM order indication on host on described host, and on described virtual machine, utilizes disk commands that the disk space after described expansion is carried out to subregion.
In another embodiment, described image file generation unit 31 is also for the virtual machine parameter is set, and the data in a described LVM subregion also comprise described virtual machine parameter.
In another embodiment, described image file generation unit 31 is also for read the data of a described LVM subregion by the dd order, and form the image file of the data in a described LVM subregion, and described image file is the block form.
In another embodiment, described virtual machine activation unit 32 is also for passing through the dd command transfer to described the 2nd LVM subregion by described image file.
Therefore, the host that the embodiment of the present invention provides, by VME operating system being arranged in the first subregion, and form the image file of the data in a LVM subregion, create the two LVM subregion identical with the image file size, described image file is transferred to the 2nd LVM subregion, and utilize the 2nd LVM subregion to be enabled in the virtual machine on host, when needs EVM(extended virtual machine) disk space, utilize the current disk space of host to be expanded the disk space of virtual machine, make the host disk space of managing virtual machines dynamically, thereby reduce the cost of cloud computing virtual platform, raise the efficiency.
The embodiment of the present invention also provides a kind of cloud computing virtual platform, and this platform comprises the host of at least one second embodiment of the invention.Wherein, can comprise at least one virtual machine on each host.
Obviously, it will be understood by those skilled in the art that above-mentioned each module of the present invention or each step can be by communication terminal enforcements as above.Alternatively, the embodiment of the present invention can realize by the executable program of computer installation, thereby they can be stored in memory storage and be carried out by processor, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be ROM (read-only memory), disk or CD etc.; Perhaps they are made into respectively to each integrated circuit modules, or a plurality of modules in them or step are made into to the single integrated circuit module realize.Like this, the present invention is not restricted to the combination of any specific hardware and software.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, to those skilled in the art, the present invention can have various changes and variation.All any modifications of doing, be equal to replacement, improvement etc., within protection scope of the present invention all should be included within spirit of the present invention and principle.
Claims (11)
1. the extended method of a virtual machine disk space, is characterized in that, comprising:
VME operating system is arranged in the first Logical Disk volume management LVM subregion, and forms the image file of the data in a described LVM subregion;
Create the two LVM subregion identical with described image file size, described image file is transferred to described the 2nd LVM subregion, and utilize described the 2nd LVM subregion to be enabled in the virtual machine on host;
When needs are expanded described virtual machine disk space, utilize the current disk space of described host to be expanded the disk space of described virtual machine.
2. the extended method of virtual machine disk space according to claim 1, is characterized in that, the described current disk space of described host that utilizes is expanded described virtual machine disk space, comprising:
Utilize the subregion expansion disk space of the described virtual machine of LVM order indication on host on described host, and on described virtual machine, utilize disk commands that the disk space after described expansion is carried out to subregion.
3. the extended method of virtual machine disk space according to claim 1 and 2, is characterized in that, described by VME operating system, be arranged in a LVM subregion after, also comprise:
The virtual machine parameter is set, and the data in a described LVM subregion also comprise described virtual machine parameter.
4. according to the extended method of the described virtual machine disk space of claim 1-3 any one, it is characterized in that, the image file of the data in the described LVM subregion of described formation is specially:
Read the data in a described LVM subregion by the dd order, and form the image file of the data in a described LVM subregion, described image file is piece block form.
5. according to the extended method of the described virtual machine disk space of any one in claim 1-4, it is characterized in that, describedly described image file is transferred to described the 2nd LVM subregion be specially:
Described image file is passed through to the dd command transfer to described the 2nd LVM subregion.
6. a host, is characterized in that, comprising:
The image file generation unit, for VME operating system being arranged on to the first Logical Disk volume management LVM subregion, and form the image file of the data in a described LVM subregion;
The virtual machine activation unit, for creating the two LVM subregion identical with described image file size, transfer to described the 2nd LVM subregion by described image file, and utilize described the 2nd LVM subregion to be enabled in the virtual machine on host;
Virtual machine disk space expanding element, for when needs are expanded described virtual machine disk space, utilize the current disk space of described host to be expanded the disk space of described virtual machine.
7. host according to claim 6, it is characterized in that, described virtual machine disk space expanding element is also for utilize the subregion expansion disk space of the described virtual machine of LVM order indication on host on described host, and on described virtual machine, utilizes disk commands that the disk space after described expansion is carried out to subregion.
8. according to the described host of claim 6 or 7, it is characterized in that, described image file generation unit is also for the virtual machine parameter is set, and the data in a described LVM subregion also comprise described virtual machine parameter.
9. according to the described host of any one in claim 6-8, it is characterized in that, described image file generation unit is also for reading the data of a described LVM subregion by the dd order, and forming the image file of the data in a described LVM subregion, described image file is the block form.
10. according to the described host of any one in claim 6-9, it is characterized in that, described virtual machine activation unit is also for passing through the dd command transfer to described the 2nd LVM subregion by described image file.
11. a cloud computing virtual platform, is characterized in that, comprises that at least one is according to the described host of any one in claim 6-10.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310337410.0A CN103440111B (en) | 2013-08-05 | 2013-08-05 | The extended method in magnetic disk of virtual machine space, host and platform |
| PCT/CN2014/078642 WO2015018225A1 (en) | 2013-08-05 | 2014-05-28 | Method for expanding disk space of virtual machine, host machine and platform |
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| CN201310337410.0A CN103440111B (en) | 2013-08-05 | 2013-08-05 | The extended method in magnetic disk of virtual machine space, host and platform |
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| CN103440111B CN103440111B (en) | 2016-08-10 |
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Cited By (7)
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| WO2015018225A1 (en) * | 2013-08-05 | 2015-02-12 | 北京京东尚科信息技术有限公司 | Method for expanding disk space of virtual machine, host machine and platform |
| CN104850469A (en) * | 2015-05-12 | 2015-08-19 | 浪潮电子信息产业股份有限公司 | LV mirror image-based method for realizing data backup, recovery and migration in linux system |
| CN106126115A (en) * | 2016-06-15 | 2016-11-16 | 浪潮电子信息产业股份有限公司 | A kind of method and device of the disk of EVM(extended virtual machine) |
| CN106528324A (en) * | 2015-09-10 | 2017-03-22 | 华为技术有限公司 | Fault recovery method and apparatus |
| CN107844260A (en) * | 2016-09-19 | 2018-03-27 | 深圳市深信服电子科技有限公司 | A kind of method and device of magnetic disk of virtual machine space dilatation |
| CN108255573A (en) * | 2016-12-29 | 2018-07-06 | 北京国双科技有限公司 | Virtual machine starts restorative procedure and server |
| WO2023236745A1 (en) * | 2022-06-08 | 2023-12-14 | 中兴通讯股份有限公司 | Disk processing method, apparatus, and storage medium |
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| WO2015018225A1 (en) * | 2013-08-05 | 2015-02-12 | 北京京东尚科信息技术有限公司 | Method for expanding disk space of virtual machine, host machine and platform |
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| WO2023236745A1 (en) * | 2022-06-08 | 2023-12-14 | 中兴通讯股份有限公司 | Disk processing method, apparatus, and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015018225A1 (en) | 2015-02-12 |
| CN103440111B (en) | 2016-08-10 |
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Effective date of registration: 20191126 Address after: 100176 room 222, 2f, building C, No. 18, Kechuang 11th Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing Jingdong three hundred and sixty degree e-commerce Co., Ltd. Address before: 100080, Beijing, Suzhou Street, No. 20, building 2, No. 2, Haidian District Patentee before: Beijing Jingdong Shangke Information Technology Co., Ltd. |