CN106855820A - The CD hot-plug method and system of a kind of virtual machine - Google Patents
The CD hot-plug method and system of a kind of virtual machine Download PDFInfo
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- CN106855820A CN106855820A CN201611116228.2A CN201611116228A CN106855820A CN 106855820 A CN106855820 A CN 106855820A CN 201611116228 A CN201611116228 A CN 201611116228A CN 106855820 A CN106855820 A CN 106855820A
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- virtual machine
- libvirt
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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
- G06F2009/45562—Creating, deleting, cloning virtual machine instances
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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
- G06F2009/45579—I/O management, e.g. providing access to device drivers or storage
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Abstract
The present invention relates to hot plug technology, more particularly, to the CD hot-plug method and system of a kind of virtual machine.Method includes：Libvirt api, libvirt is called to create the virtual machine with virtual drive according to configuration file；Virtual machine information according to creating updates the data storehouse record；Share directory is provided with CD resources sharing storage region, optical file is uploaded in share directory；Using the media file switching interface of virsh instruments, insertion or ejection CD order are performed, completed to the CD hot plug operations in share directory.Different hypervisor is used uniformly across libvirt interfaces and is managed in the present invention, shields the difference of hypervisor.And the method for the present invention completes the hot plug of CD by the virtual drive of virtual machine, it is not necessary to the support of hardware CD-ROM drive, high efficiency, flexible CD warm connection function are realized.
Description
Technical field
The present invention relates to hot plug technology, more particularly, to the CD hot-plug method and system of a kind of virtual machine.
Background technology
Virtual machine（Virtual Machine）Refer to by software simulation it is with complete hardware system function, operate in
Complete computer in one completely isolated environment.
Image file is the file for being combined into data and program, its in future source material by after form conversion in hard disk
On be saved as with the duplicate file of purpose CD content, this file is then carved into CD in one to one corresponding mode
In.Image file is a kind of complete copy file of optical file information, and it includes all information of CD, it is necessary to special is virtual
CD-ROM drive software is loaded into this kind of image file and is read out.
Compact disc image files are also Disc image file, formal only one of which file, storage format and optical file phase
Together, it is possible to the content of true reflection CD, it can be created by imprinting software or image file tools.Image file
Form have many kinds, one of which is international standard ISO9660, and the compact disc image files for meeting this standard are typically with iso
Extension name, iso is CD mirroring form the most general, can be supported by most of imprinting softwares and virtual drive software.
Current operation of the virtual machine to CD, carry is carried out generally by ISO optical files are directly accessed.But this side
Formula needs copied files or dummy machine system shared storage environment, and operation and managerial efficiency are all very low.In order to improve behaviour
Make efficiency, the method for use is mainly and virtual management layer is optimized at present, specifically includes:
One is, for xen virtual machines, is supported using the configuration of xenstore and the loop equipment of linux, by way of carry
Realize.This mode is specifically to utilize Xenserver（Virtualized server）In xenstore provide that a kind of virtual machine is shared to be deposited
The support of storage, loop equipment carries, but generally virtualization are carried out to the ISO optical files of xenstore by xen administration orders
Management platform needs to support polytype hypervisor that this scheme is only applicable to xen, and can bring asking for compatibility
Topic, also needs to additionally install virtual drive support for windows system virtual machines.
Two are, hardware CD-ROM drive is distributed to virtual machine to be used, and the plug of entity optical disc medium is mapped to virtual machine operations.
Hardware CD-ROM drive is distributed directly to virtual machine and uses, if multiple virtual machines need to be supported using the plug of CD simultaneously, this side
Formula is still limited by hardware resource distribution limitation.
It can be seen that, although above two scheme solves the efficiency of CD hot plug operations, but to specific
Hypervisor relies on excessive, or need to support the exclusive of hardware CD-ROM drive, flexibility and hardware resource in management
Using above bearing very big cost.
The content of the invention
The present invention is to overcome at least one defect described in above-mentioned prior art（It is not enough）, there is provided a kind of high efficiency, flexibly
Virtual machine CD hot-plug method.
The present invention also provides a kind of high efficiency, the CD hot plug system of flexible virtual machine.
In order to solve the above technical problems, technical scheme is as follows：
A kind of CD hot-plug method of virtual machine, including：
Libvirt api, libvirt is called to create the virtual machine with virtual drive according to configuration file；
Virtual machine information according to creating updates the data storehouse record；
Share directory is provided with CD resources sharing storage region, optical file is uploaded in share directory；
Using the media file switching interface of virsh instruments, insertion or ejection CD order are performed, completed in share directory
CD hot plug operations.
Libvirt is the Virtual Machine Manager storehouse increased income, and it supports various hypervisor, including Xen, KVM, QEMU
With some virtual products for other operating systems, unified api interfaces are externally provided.The present invention is by calling libvirt
Api carry out the management of virtual machine, the type of hypervisor by configure specified during xml document but hypervisor type
Unrestricted, different hypervisor is used uniformly across libvirt interfaces and is managed, and shields the difference of hypervisor.
And optical file is uploaded in the share directory of CD resources sharing storage region so that optical file can be across physical node
Shared, different physical machines can access the optical file of same storage region, so as to reduce management cost.Additionally, this
The method of invention completes the hot plug of CD by the virtual drive of virtual machine, it is not necessary to the support of hardware CD-ROM drive, realizes efficient
Rate, flexible CD warm connection function.
In such scheme, libvirt api, libvirt is called to create the virtual machine with virtual drive according to configuration file
Specific steps include：
Configuration xml document, specifies hypervisor types；
Configuration xml document, is virtual machine distribution virtual drive；
A physical machine node is selected, the libvirt on the physical machine node is connected remotely to；
Call libvirt api create virtual machine, libvirt according to the configuration of xml document determine hypervisor types and
Virtual drive, creates the virtual machine with virtual drive.
In such scheme, CD resources sharing storage region is built by NFS, glusterfs or SAN mode.
In such scheme, the specific steps that the CD in share directory completes the hot insertion operation in hot plug are included：
Inquiry database, the physical machine node where obtaining virtual machine；
It is connected remotely to the libvirt on physical machine node；
The change-media interfaces of libvirt are called, specifies optical file to distribute to virtual machine with inserted mode, complete CD
Insertion operation.
In such scheme, the specific steps that the CD in share directory completes the hot drawing division operation in hot plug are included：
Inquiry database, the physical machine node where obtaining virtual machine；
It is connected remotely to the libvirt on physical machine node；
The change-media interfaces of libvirt are called, optical file is ejected to eject mode, completed CD and pull out operation.
A kind of CD hot plug system of virtual machine, including：
Virtual machine creating module, for calling libvirt api, libvirt to create the void with virtual drive according to configuration file
Plan machine；
Database update module, for updating the data storehouse record according to the virtual machine information for creating；
Optical file processing module, the share directory for optical file to be uploaded to CD resources sharing storage region；
CD hot plug module, for the media file switching interface using virsh instruments, performs insertion or ejection CD life
Order, completes to the CD hot plug operations in share directory.
Libvirt is the Virtual Machine Manager storehouse increased income, and it supports various hypervisor, including Xen, KVM, QEMU
With some virtual products for other operating systems, unified api interfaces are externally provided.The present invention is by calling libvirt
Api carry out the management of virtual machine, the type of hypervisor specified when configuring xml document by virtual machine creating module but
The type of hypervisor is unrestricted, and different hypervisor is used uniformly across libvirt interfaces and is managed, shielding
The difference of hypervisor.And optical file is uploaded to being total to for CD resources sharing storage region by optical file processing module
In enjoying catalogue so that optical file can be shared across physical node, and different physical machines can access same storage region
Optical file, so as to reduce management cost.Additionally, system of the invention completes the heat of CD by the virtual drive of virtual machine
Plug, it is not necessary to the support of hardware CD-ROM drive, realizes high efficiency, flexible CD warm connection function.
In such scheme, virtual machine creating module is specifically included：
Xml file configuration modules, for configuring xml document, specify hypervisor types and for virtual machine distributes virtual drive；
Far call module, for selecting a physical machine node, is connected remotely to the libvirt on the physical machine node；
Creation module, for calling libvirt api to create virtual machine, libvirt determines according to the configuration of xml document
Hypervisor types and virtual drive, create the virtual machine with virtual drive.
In such scheme, CD resources sharing storage region is built by NFS, glusterfs or SAN mode.
In such scheme, CD hot plug module is specifically included：
Enquiry module, for inquiring about database, the physical machine node where obtaining virtual machine；
Long-range link block, for the libvirt being connected remotely on physical machine node；
Hot-swappable module, the change-media interfaces for calling libvirt specify optical file to distribute to inserted mode
Virtual machine, completes CD insertion operation；And, the change-media interfaces of libvirt are called, eject CD to eject mode
File, completes CD and pulls out operation.
The present invention is used uniformly across libvirt interfaces and is managed to different hypervisor, shields virtualization layer
The difference of hypervisor, optical file can be shared across physical machine, it is not necessary to the support of hardware CD-ROM drive, realizes high efficiency, spirit
CD warm connection function living.And the shared storage of cross-node of the present invention so that can access same in different physical machines
The optical file of individual storage region, so as to reduce management cost.
Brief description of the drawings
Fig. 1 is a kind of flow chart of the CD hot-plug method specific embodiment of virtual machine of the invention.
Fig. 2 is a kind of logical architecture figure of the CD hot-plug method specific embodiment of virtual machine of the invention.
Fig. 3 is a kind of Organization Chart of the CD hot plug system specific embodiment of virtual machine of the invention.
Specific embodiment
Accompanying drawing being for illustration only property explanation, it is impossible to be interpreted as the limitation to this patent；
In order to more preferably illustrate the present embodiment, accompanying drawing some parts have omission, zoom in or out, and do not represent the chi of actual product
It is very little；
To those skilled in the art, some known features and its explanation may be omitted and will be understood by accompanying drawing.
In the description of the invention, it is to be understood that additionally, term " first ", " second " are only used for describing purpose, and
It is not intended that indicating or implying relative importance or imply the quantity of indicated technical characteristic.Thus, " first " of restriction,
One or more this feature can be expressed or be implicitly included to the feature of " second ".In the description of the invention, unless separately
It is described, " multiple " is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " company
Connect " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or it is integrally connected；It can be machine
Tool is connected, or electrically connected；It can be joined directly together, or be indirectly connected with by intermediary, it may be said that two
The connection of element internal.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood in the present invention
Concrete meaning.
Technical scheme is described further with reference to the accompanying drawings and examples.
Embodiment 1
As shown in figure 1, the flow chart of the CD hot-plug method specific embodiment for a kind of virtual machine of the invention.Referring to Fig. 1, this
A kind of specific steps of the CD hot-plug method of virtual machine of specific embodiment include：
S110. libvirt api, libvirt is called to create the virtual machine with virtual drive according to configuration file.In this step
Resources of virtual machine is defined using the xml configuration files of Libvirt, specific steps include：
S111. xml document is configured, hypervisor types are specified；
S112. xml document is configured, is virtual machine distribution virtual drive；
S113. a physical machine node is selected, the libvirt on the physical machine node is connected remotely to；
S114. libvirt api are called to create virtual machine, libvirt determines hypervisor types according to the configuration of xml document
And virtual drive, create the virtual machine with virtual drive.
When implementing, described for distributing a virtual drive comprising following in configuration file：
<disk type='block' device='cdrom'>
<driver name='qemu' type='raw'/>
<target dev='hdr' bus='ide'/>
<readonly/>
</disk>
Wherein driver name is specified according to different hypervisor, and QEMU conducts are used in this example
Hypervisor, need to such as be switched to other hypervisor, and the configuration for changing xml document can be completed.
Performing virsh create guest.xml can create a virtual machine with virtual drive.
The virtual machine for being created is actually to operate in be mounted with the physical machine node of libvirt, and libvirt is only right
The virtual machine operated in this physical machine is managed.
S210. storehouse record is updated the data according to the virtual machine information for creating；Database is created in system deployment with mysql
Physical machine on, by system remote connected reference.By this step, the information of virtual machine can be recorded in database, convenient
Subsequent step obtains virtual machine information.
S310. share directory is provided with CD resources sharing storage region, optical file is uploaded in share directory；CD
Resource-sharing storage region is specified in environmental structure, can be NFS, glusterfs or SAN mode.Use in this example
NFS, optical file is uploaded and deletion action can be completed by calling service interface.Created in CD resources sharing storage region
A share directory/source/media/ is built, during optical file uploaded into this catalogue, hypervisor is visited with read-only mode
Ask optical file, therefore multiple virtual machines while can be independent of each other when accessing optical file, this mode ensure that same light
Disk file can be used by multiple virtual machines simultaneously, based on this, it is possible to achieve the shared storage of cross-node, on different virtual machines
The optical file of same storage region can be accessed, management cost is reduced.
S410. using the media file switching interface of virsh instruments, insertion or ejection CD order are performed, it is right to complete
CD hot plug operations in share directory.Specifically, heat insertion and hot drawing division operation during CD is hot-swappable are specially：
（1）Hot insertion operation
Inquiry database, the physical machine node where obtaining virtual machine；
It is connected remotely to the libvirt on physical machine node；
The change-media interfaces of libvirt are called, specifies optical file to distribute to virtual machine with inserted mode, complete CD
Insertion operation；
（2）Hot drawing division operation：
Inquiry database, the physical machine node where obtaining virtual machine；
It is connected remotely to the libvirt on physical machine node；
The change-media interfaces of libvirt are called, optical file is ejected to eject mode, completed CD and pull out operation.
Step S410 performs an order, you can realize to sharing mesh using the media file switching interface of virsh instruments
CD in record carries out hot plug operations, and specific instructions are：
Insertion CD：Perform virsh guest1 hdr change-media -- insert/source/media/
test.iso
Ejection CD：Perform virsh guest1 hdr change-media -- eject.
As shown in Fig. 2 the logical construction schematic diagram of the CD hot-plug method for a kind of virtual machine of this specific embodiment.Ginseng
See Fig. 2, the layering logic layers include interface layer, management level and virtual machine, interface layer provides service interface, and management level are provided with physics
Machine, CD resources sharing storage region specified type in environmental structure such as uses NFS, optical file to upload and deletion action
Can by calling interface layer service interface complete, created in CD resources sharing storage region a share directory/
Source/media/ carrys out stored CD file.Virtual machine is to operate in be mounted with the physical machine node of libvirt,
Virtual machines of the libvirt only to operating in this physical machine is managed, and the information of virtual machine can be recorded in database.
The method of this specific embodiment is used uniformly across libvirt interfaces and is managed to different hypervisor, shielding
The difference of virtualization layer hypervisor, optical file can be shared across physical machine, it is not necessary to the support of hardware CD-ROM drive, realizes
High efficiency, flexible CD warm connection function.And the shared storage of cross-node of the present invention so that can be in different physical machines
The optical file of same storage region is accessed, so as to reduce management cost.
Embodiment 2
On the basis of embodiment 1, present invention also offers a kind of CD hot plug system of virtual machine.Referring to Fig. 3, this is specific
A kind of CD hot plug system of virtual machine of embodiment specifically include virtual machine creating module 510, database update module 610,
Optical file processing module 710 and CD hot plug module 810；Specifically：
Virtual machine creating module 510, for calling libvirt api, libvirt to create band virtual drive according to configuration file
Virtual machine.Specifically, virtual machine creating module evidence includes：
Xml file configuration modules, for configuring xml document, specify hypervisor types and for virtual machine distributes virtual drive；
When implementing, described for distributing a virtual drive comprising following in configuration file：
<disk type='block' device='cdrom'>
<driver name='qemu' type='raw'/>
<target dev='hdr' bus='ide'/>
<readonly/>
</disk>
Wherein driver name is specified according to different hypervisor, and QEMU conducts are used in this example
Hypervisor, need to such as be switched to other hypervisor, and the configuration for changing xml document can be completed.
Far call module, for selecting a physical machine node, is connected remotely on the physical machine node
libvirt；
Creation module, for calling libvirt api to create virtual machine, libvirt determines according to the configuration of xml document
Hypervisor types and virtual drive, create the virtual machine with virtual drive.When implementing, virsh create are performed
Guest.xml creates a virtual machine with virtual drive.
Database update module 610, for updating the data storehouse record according to the virtual machine information for creating；The information of virtual machine
Can record in database, convenient inquiry virtual machine information.
Optical file processing module 710, the shared mesh for optical file to be uploaded to CD resources sharing storage region
Record.CD resources sharing storage region is specified in environmental structure, can be NFS, glusterfs or SAN mode.In this example
Using NFS, optical file processing module 710 can be uploaded and deletion action by calling service interface to complete optical file.
Being created in CD resources sharing storage region has a share directory/source/media/, and optical file is uploaded into this catalogue
In, hypervisor accesses optical file, therefore multiple virtual machines while can mutually not when accessing optical file with read-only mode
Influence, this mode ensure that same optical file can be used by multiple virtual machines simultaneously, based on this, it is possible to achieve cross-node
Shared storage, can access the optical file of same storage region on different virtual machines, reduce management cost.
CD hot plug module 810, for the media file switching interface using virsh instruments, performs insertion or bullet
Go out CD order, complete to the CD hot plug operations in share directory.It is specifically included：
Enquiry module, for inquiring about database, the physical machine node where obtaining virtual machine；
Long-range link block, for the libvirt being connected remotely on physical machine node；
Hot-swappable module, the change-media interfaces for calling libvirt specify optical file to distribute to inserted mode
Virtual machine, completes CD insertion operation；And, the change-media interfaces of libvirt are called, eject CD to eject mode
File, completes CD and pulls out operation.
System of the invention is managed collectively to different hypervisor interfaces, shields the difference of hypervisor,
Optical file can across physical machine nodes sharing so that the CD of same storage region can be accessed in different physical machines
File, so as to reduce management cost.At the same time, the method does not need the support of hardware CD-ROM drive, realizes high efficiency, flexible
CD warm connection function.
The same or analogous part of same or analogous label correspondence；
Position relationship for the explanation of being for illustration only property described in accompanying drawing, it is impossible to be interpreted as the limitation to this patent；
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not to this hair
The restriction of bright implementation method.For those of ordinary skill in the field, can also do on the basis of the above description
Go out the change or variation of other multi-forms.There is no need and unable to be exhaustive to all of implementation method.It is all in the present invention
Spirit and principle within any modification, equivalent and the improvement made etc., should be included in the guarantor of the claims in the present invention
Within the scope of shield.
Claims (9)
1. the CD hot-plug method of a kind of virtual machine, it is characterised in that including：
Libvirt api, libvirt is called to create the virtual machine with virtual drive according to configuration file；
Virtual machine information according to creating updates the data storehouse record；
Share directory is provided with CD resources sharing storage region, optical file is uploaded in share directory；
Using the media file switching interface of virsh instruments, insertion or ejection CD order are performed, completed in share directory
CD hot plug operations.
2. the CD hot-plug method of virtual machine according to claim 1, it is characterised in that call libvirt api,
Libvirt includes according to the specific steps that configuration file creates the virtual machine with virtual drive：
Configuration xml document, specifies hypervisor types；
Configuration xml document, is virtual machine distribution virtual drive；
A physical machine node is selected, the libvirt on the physical machine node is connected remotely to；
Call libvirt api create virtual machine, libvirt according to the configuration of xml document determine hypervisor types and
Virtual drive, creates the virtual machine with virtual drive.
3. the CD hot-plug method of virtual machine according to claim 1, it is characterised in that CD resources sharing memory block
Built by NFS, glusterfs or SAN mode in domain.
4. the CD hot-plug method of virtual machine according to claim 1, it is characterised in that to the CD in share directory
The specific steps for completing the hot insertion operation in hot plug include：
Inquiry database, the physical machine node where obtaining virtual machine；
It is connected remotely to the libvirt on physical machine node；
The change-media interfaces of libvirt are called, specifies optical file to distribute to virtual machine with inserted mode, complete CD
Insertion operation.
5. the CD hot-plug method of the virtual machine according to claim any one of 1-4, it is characterised in that to share directory
In the specific steps of hot drawing division operation that complete in hot plug of CD include：
Inquiry database, the physical machine node where obtaining virtual machine；
It is connected remotely to the libvirt on physical machine node；
The change-media interfaces of libvirt are called, optical file is ejected to eject mode, completed CD and pull out operation.
6. the CD hot plug system of a kind of virtual machine, it is characterised in that including：
Virtual machine creating module, for calling libvirt api, libvirt to create the void with virtual drive according to configuration file
Plan machine；
Database update module, for updating the data storehouse record according to the virtual machine information for creating；
Optical file processing module, the share directory for optical file to be uploaded to CD resources sharing storage region；
CD hot plug module, for the media file switching interface using virsh instruments, performs insertion or ejection CD life
Order, completes to the CD hot plug operations in share directory.
7. the CD hot plug system of virtual machine according to claim 6, it is characterised in that virtual machine creating module is specific
Including：
Xml file configuration modules, for configuring xml document, specify hypervisor types and for virtual machine distributes virtual drive；
Far call module, for selecting a physical machine node, is connected remotely to the libvirt on the physical machine node；
Creation module, for calling libvirt api to create virtual machine, libvirt determines according to the configuration of xml document
Hypervisor types and virtual drive, create the virtual machine with virtual drive.
8. the CD hot plug system of virtual machine according to claim 6, it is characterised in that CD resources sharing memory block
Built by NFS, glusterfs or SAN mode in domain.
9. the CD hot plug system of the virtual machine according to claim any one of 6-8, it is characterised in that CD hot plug
Module is specifically included：
Enquiry module, for inquiring about database, the physical machine node where obtaining virtual machine；
Long-range link block, for the libvirt being connected remotely on physical machine node；
Hot-swappable module, the change-media interfaces for calling libvirt specify optical file to distribute to inserted mode
Virtual machine, completes CD insertion operation；And, the change-media interfaces of libvirt are called, eject CD to eject mode
File, completes CD and pulls out operation.
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| CN201611116228.2A CN106855820A (en) | 2016-12-07 | 2016-12-07 | The CD hot-plug method and system of a kind of virtual machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611116228.2A CN106855820A (en) | 2016-12-07 | 2016-12-07 | The CD hot-plug method and system of a kind of virtual machine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108536515A (en) * | 2018-03-02 | 2018-09-14 | 武汉噢易云计算股份有限公司 | The virtual machine of VDI plays the method and system of the music CD of client computer |
| CN112015520A (en) * | 2020-09-14 | 2020-12-01 | 支付宝(杭州)信息技术有限公司 | Data uploading system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108536515A (en) * | 2018-03-02 | 2018-09-14 | 武汉噢易云计算股份有限公司 | The virtual machine of VDI plays the method and system of the music CD of client computer |
| CN108536515B (en) * | 2018-03-02 | 2021-10-01 | 武汉噢易云计算股份有限公司 | Method and system for playing music CD of client by virtual machine of VDI |
| CN112015520A (en) * | 2020-09-14 | 2020-12-01 | 支付宝(杭州)信息技术有限公司 | Data uploading system and method |
| CN112015520B (en) * | 2020-09-14 | 2024-06-07 | 支付宝(杭州)信息技术有限公司 | Data uploading system and method |
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