CN107544751A - A kind of method and apparatus for remotely accessing disk - Google Patents
A kind of method and apparatus for remotely accessing disk Download PDFInfo
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- CN107544751A CN107544751A CN201710346760.1A CN201710346760A CN107544751A CN 107544751 A CN107544751 A CN 107544751A CN 201710346760 A CN201710346760 A CN 201710346760A CN 107544751 A CN107544751 A CN 107544751A
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Abstract
The application provides a kind of method and apparatus for remotely accessing disk, and methods described is applied to virtual machine, and methods described includes：Virtual disk corresponding to designated disk on remote equipment is established on the cloud desktop that virtual machine is presented；After virtual disk is established, the listed files and caching of the designated disk are obtained from the remote equipment；When receiving the instruction for accessing the virtual disk, show a window on the cloud desktop, and in the window display caching the listed files, wherein the address field of the window shows local path.This cause the disk of remote equipment functionally with local disk can be equivalent in using effect, improve the flexibility of remote access disk.
Description
Technical field
The application is related to field of cloud calculation, more particularly to a kind of method and apparatus for remotely accessing disk.
Background technology
Cloud desktop as a basic usage scenario of cloud computing be by more virtual desktops operate in Cloud Server it
On, user's using terminal equipment is by network access virtual machine desktop, so as to substitute traditional desktop computer and notebook computer.Cloud
In desktop technology, user usually needs to access the data in magnetic disk of remote equipment on cloud desktop.A kind of conventional remote access magnetic
The mode of disk is by RDP (Remote Desktop Protocol, Remote desk process agreement) mapping mode, will remotely be set
Standby upper data in magnetic disk is mapped in cloud desktop.Fig. 1 shows the data in magnetic disk that remote equipment is accessed by RDP mapping modes.
As shown in figure 1, cloud desktop is by C, D, E and G on remote equipment " D12371G ", this four Disk Mappings have arrived this
Ground, user is by clicking on corresponding icon on cloud desktop, you can accesses the disk of remote equipment.The text shown from window address column
Part path " tsclient D the document retaining of oneself " as can be seen that RDP mapping modes by network path access remotely set
Standby disk, wherein tsclient are a kind of procotol.
But in practical application, some application programs do not support network path when accessing the disk of remote equipment, because
This network path may limit the versatility of remote access disk system to a certain extent.For example, incited somebody to action by browser
When file on network is saved in cloud desktop, if the browser None- identified network path, then in selection that this document is another
Be not in the option that file is saved in remote equipment disk when saving as, i.e., directly this document can not be saved in and remotely set
On standby disk.
The content of the invention
In view of this, the application provides a kind of method and apparatus for remotely accessing disk, for realizing a kind of general magnetic
Disk mapping techniques, improve versatility and the flexibility of remote access disk.
Specifically, the application is achieved by the following technical solution：
The application first aspect, there is provided a kind of method for remotely accessing disk, methods described are applied in cloud desktop
Virtual disk driver, methods described include：
Virtual disk corresponding to designated disk on remote equipment is established on the cloud desktop that virtual machine is presented；
After virtual disk is established, the listed files and caching of the designated disk are obtained from the remote equipment；
When receiving the instruction for accessing the virtual disk, a window is shown on the cloud desktop, and in the window
The listed files of display caching in mouthful, wherein the address field of the window shows local path.
The application second aspect, there is provided one kind remote access disk set, it is characterised in that described device is applied to cloud
Virtual disk driver in desktop, described device include：
Virtual disk establishes unit, corresponding for establishing designated disk on remote equipment on the cloud desktop that is presented in virtual machine
Virtual disk；
Data in magnetic disk acquiring unit, for being established in the disk after unit establishes virtual disk, remotely set from described
The standby listed files and caching for obtaining the designated disk；
Data in magnetic disk processing unit, for when receiving the instruction for accessing the virtual disk, on the cloud desktop
Show a window, and in the window display caching the listed files, wherein the address field display of the window is local
Path.
The technical scheme of the application passes through network connection by establishing virtual disk on the cloud desktop that is presented in virtual machine
The virtual disk and the disk communicating data of remote equipment allowed on cloud desktop, can not be limited by network path, and user can be with
As accessing the local disk on cloud desktop, the disk number of the remote equipment preserved in virtual disk is accessed using local path
According to, this cause the disk of remote equipment functionally with local disk can be equivalent in using effect, improve remote access
The flexibility of disk.
Brief description of the drawings
Fig. 1 be in the prior art it is a kind of by RDP mapping modes access remote equipment schematic diagram；
Fig. 2 is a kind of principle schematic for remote access disk that the embodiment of the present application provides；
Fig. 3 is a kind of method flow diagram for remote access disk that the embodiment of the present application provides；
Fig. 4 is a kind of cloud desktop display effect schematic diagram established after virtual disk that the embodiment of the present application provides；
Fig. 5 is a kind of schematic diagram that disk is remotely accessed using local path that the embodiment of the present application provides；
Fig. 6 is a kind of effect signal that remote disk partition information is shown on cloud desktop that the embodiment of the present application provides
Figure；
Fig. 7 is a kind of functional block diagram for remote access disk set that the embodiment of the present application provides；
Fig. 8 is a kind of hardware architecture diagram for remote access disk set that the embodiment of the present application provides.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to
During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent apparatus and method of some aspects be described in detail in claims, the application.
It is only merely for the purpose of description specific embodiment in term used in this application, and is not intended to be limiting the application.
" one kind " of singulative used in the application and appended claims, " described " and "the" are also intended to including majority
Form, unless context clearly shows that other implications.It is also understood that term "and/or" used herein refers to and wrapped
Containing the associated list items purpose of one or more, any or all may be combined.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used for same type of information being distinguished from each other out.For example, do not departing from
In the case of the application scope, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on linguistic context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determining ".
Technical scheme is illustrated with reference to Figure of description and each embodiment.
The problem of limited is accessed existing for disk for being remotely accessed by RDP mapping modes, present applicant proposes one kind
Solution, this programme allow cloud desktop by establishing virtual disk on the cloud desktop that is presented in virtual machine, and by network connection
On virtual disk and remote equipment disk communicating data so that the disk of remote equipment functionally with it is complete in using effect
Local disk is equivalent to entirely, improves the flexibility of remote access disk.Its principle is as shown in Figure 2.
Referring to Fig. 2, technical scheme relates generally to two roles of remote equipment and virtual machine.
Remote equipment, it is the computer where the disk that will be remotely accessed.In the application, to enable remote equipment to match somebody with somebody
The operation that virtual machine completes remote access disk is closed, an application module can be installed in the application layer of remote equipment, should be answered
Be used to capture data in magnetic disk in the designated disk of remote equipment with module, and by the data in magnetic disk grabbed by network from remote
The application layer of journey equipment is transferred to the driving layer of virtual machine.
Virtual machine, it is responsible for that cloud desktop is presented.Virtual machine is operated on Cloud Server, and its all computing resource and data are deposited
Storage provides by Cloud Server.The cloud desktop that user can be provided with using terminal equipment by network access virtual machine, this feelings
The terminal device is only used as a display end under condition, is responsible for receiving and feeding back the operation of the external equipments such as mouse, keyboard.The application
In, the driving layer of virtual machine is provided with a virtual disk driver, and the virtual disk driver is responsible for building on cloud desktop
The data in magnetic disk and the data in magnetic disk of reception is buffered in Cloud Server distribution that vertical virtual disk, reception remote equipment are sent
To in the data storage of the virtual machine.
As for specifically how by virtual machine access remote equipment disk, will pass through the method flow shown in Fig. 3 below
Explanation.For any one remote equipment, the method that virtual machine can be deferred to shown in Fig. 3 is realized on the remote access remote equipment
Disk.This method as shown in Figure 3 may include step 301- steps 303, the wherein drive of step 301 and step 302 in virtual machine
Dynamic layer realizes that step 303 is realized in the driving layer and application layer of virtual machine.Next, each step included to this method is entered
Row is introduced.
Step 301：Virtual disk corresponding to designated disk on remote equipment is established on the cloud desktop that virtual machine is presented.
Alternatively, virtual machine can determine to be visited on remote equipment specify according to the control instruction that remote equipment is sent
Disk；Designated disk to be visited on remote equipment can also be determined according to the human configuration instruction received from terminal interface, this
In terminal interface refer to the external interface for having logged in the terminal device of cloud desktop, can be Command Line Interface, man-machine interface or
The interface of person's other forms.Then, virtual machine can drive layer to establish corresponding with the designated disk on remote equipment empty at it
Intend disk.
When designated disk to be visited on remote equipment has multiple, virtual machine can be established multiple with this on cloud desktop
Multiple virtual disks corresponding to designated disk difference.
Alternatively, when establishing virtual disk, may be accomplished by：Virtual machine can be according to having generated
The root device object (Root Device Object) of FILE_DEVICE_UNKNOWN (unknown file equipment) type, it is counter to find
Driven object corresponding to the virtual disk driver that virtual machine includes (Driver Object), further according to the anti-driving found
Object establishes the virtual disk of FILE_DEVICE_DISK (disk file equipment) type, and the virtual disk given disc to establish
Symbol.After the completion of virtual disk establishment, local disk icon as shown in Figure 4 can be shown in cloud desktop, in Fig. 4, " local disk
(X:) " it is icon corresponding to virtual disk, now local disk (X:) in any data are not present.
Virtual disk driver mentioned here, can be NT (New Technology) class commonly used in existing realization
Type is driven, and is typically loaded when virtual machine starts, and Driver Entry function (DriverEntry) establishment can be called during loading
The device object (Device Object) of one FILE_DEVICE_UNKNOWN type, this device object is above-mentioned root device
Object.Root device object is located at the driving layer of virtual machine, contains the important information of virtual disk driver, and main function is
Realize the dynamic load of virtual disk.
Step 302：After virtual disk is established, the listed files of the designated disk is obtained simultaneously from the remote equipment
Caching.
Before step 302, remote equipment can by API (Application Programming Interface,
Application programming interface) function obtains the partition information of designated disk to be visited on the remote equipment, and according to acquisition
Disk partition information determines the position of designated disk to be visited, file pointer is defined at the Disk Locality determined, with text
The mode of part pointer is written and read to disk, so as to obtain the listed files of designated disk to be visited.Read using file pointer
The file management system of computer can be bypassed by writing the mode of data in magnetic disk, and mean to read and write disk around file management system
Data can pass through less process module, so as to reduce link complexity, improve the read-write efficiency of disk.
Another task of remote equipment is to create network connection, and the data in magnetic disk encapsulation such as listed files by reading
Virtual machine is sent to by network connection into suitable data structure, the data structure after encapsulation can indicate in data head
Offset and length of each listed files in the entity of data structure, so that virtual machine can be according to the data head of data structure
Instruction, the listed files of designated disk to be visited on remote equipment is read out from the entity of data structure.
To ensure the security of data transfer, remote equipment can also be right before data in magnetic disk is sent by network connection
Data in magnetic disk is encrypted, and conventional AES has DES (Data Encryption Standard, data encryption standards) algorithm
Deng.
Specifically, network connection here can be TCP (Transmission Control Protocol, transmission control
Agreement) connection, and the network connection can be established between the application layer of remote equipment and the driving layer of virtual machine, so as to magnetic
Disk data can directly be transferred to the driving layer of virtual machine from the application layer of remote equipment, it is not necessary to by the application layer of virtual machine,
This data in magnetic disk transmission means can reduce link complexity, improve data transmission efficiency.In addition, the application is not intended to limit far
Network connection between journey equipment and virtual machine is established opportunity, for example, virtual machine can after virtual disk is established again with far
Journey equipment establishes network connection, or can also be before virtual disk is established (such as it is determined that finger to be visited on remote equipment
After determining disk) just establish network connection with remote equipment.Optionally, the network connection can be TCP length connections, i.e. virtual machine
Even if during no data transfer, the network connection will not also be interrupted therebetween with remote equipment.
Step 303：When receiving the instruction for accessing the virtual disk, a window is shown on the cloud desktop, and
The listed files of display caching in the window, wherein the address field of the window shows local path.
Specifically, virtual machine can receive to access and specify void by the external interface for the terminal device for having logged in cloud desktop
Intend the instruction of disk, afterwards, the text that the driving layer request of the application layer of virtual machine to virtual machine associates with the specified virtual disk
Part list, driving layer listed files and return to application layer according to corresponding to reading the request of application layer, and application layer is by this document
List is shown in the window.
For example, it is assumed that establishing virtual disk on the cloud desktop of virtual machine, the drive of the virtual disk is " local disk
(X:) ", the local disk (X:) associated with the listed files of some disk on the remote equipment of local cache.Work as virtual machine
Receive to local disk (X:) access instruction, such as receive mouse to local disk (X：) double-click instruction when, virtual machine
Application layer can be to virtual machine driving layer request with local disk (X:) association remote equipment on disk file row
Table, after driving layer returns to corresponding listed files, window as shown in Figure 5 can be presented in application layer, and shows in the window
This document list, and show in the address field of window local path " computer local disk (X：)”.It is empty in the application
Application program on plan machine can access the disk of remote equipment by local path, and this causes the disk of remote equipment in function
Local disk can be equivalent in upper and using effect, is protected in the case where some are related to the scene of file path identification, such as by file
Under the scenes such as some file being stored on the disk or opening remote equipment disk of remote equipment, it can avoid the occurrence of long-range
Access the problem of limited.
When designated disk to be visited on remote equipment has multiple, virtual machine can parse from the data in magnetic disk of reception
When going out more parts of listed files, this more parts of listed files can be saved in corresponding virtual disk by virtual machine respectively.
According to the method shown in Fig. 3, virtual machine can load one or more on one or more remote equipments simultaneously
For the data of disk to virtual machine, this improves the flexibility of remote access disk.
After virtual machine shows the disk file list of remote equipment in the window of cloud desktop, it is directed to if received
The reading instruction for the object that the listed files includes, then content corresponding to the object can be obtained from the designated disk, and
Shown on the cloud desktop.And if receiving the write command of the object included for the listed files, then can be to
The remote equipment sends the write command, so that the remote equipment is carried out according to the write command in the designated disk
Write operation.The object can be file or file.
, can be from remotely setting for example, when virtual machine receives the reading instruction for some file in listed files
The listed files that this document folder further comprises is obtained in standby designated disk and is shown on cloud desktop；When virtual machine receives
For some file in listed files reading instruction when, the content of this document can be obtained from the designated disk of remote equipment
And shown on cloud desktop, remote equipment side can read file by way of file pointer from the designated disk of local.
Optionally, in order to allow display effect of the disk on cloud desktop of remote equipment can be closer to local disk, remotely
After equipment can obtain the partition information of designated disk to be visited in this equipment by api function, and the disk that will be got
Partition information is sent to virtual machine, wherein, disk partition information is mainly used in indicating designated disk to be visited on remote equipment
The information such as residual capacity, active volume and total capacity.Virtual machine can show the disk partition information of reception on cloud desktop
Show.For example, in figure 6, " local disk (X:) " represent the icon of the virtual disk that the application provides, " C " on D12371F and
" D " on D12371F represents to be mapped to local the disk icon by RDP mapping modes, in the application offer knowable to contrast
The active volume of remote equipment disk corresponding to the virtual disk, total capacity and capacity bar are shown around the icon of virtual disk
Etc. information, local disk is more nearly in display effect.
In summary, the technical scheme of the application on the cloud desktop that is presented in virtual machine by establishing virtual disk, and leads to
The disk communicating data of virtual disk that network connection allows on cloud desktop and remote equipment is crossed, can not be limited by network path
System, user can be long-range using being preserved in local path access virtual disk as accessing the local disk on cloud desktop
The data in magnetic disk of equipment, this cause the disk of remote equipment functionally with local disk can be equivalent in using effect, carry
The high flexibility of remote access disk.
The method provided above the application is described.The device provided below the application is described.
Referring to Fig. 7, the figure is a kind of functional block diagram for remote access disk set that the embodiment of the present application provides, should
Device is applied to virtual machine, and described device can include：
Virtual disk establishes unit 701, for establishing designated disk on remote equipment on the cloud desktop that is presented in virtual machine
Corresponding virtual disk.
Data in magnetic disk acquiring unit 702, for being established in the disk after unit 701 establishes virtual disk, from described
Remote equipment obtains the listed files and caching of the designated disk.
Data in magnetic disk processing unit 703, for when receiving the instruction for accessing the virtual disk, in the cloud desktop
It is upper display one window, and in the window display caching the listed files, wherein the window address field display this
Ground path.
Optionally, when establishing virtual disk corresponding to designated disk on remote equipment on the cloud desktop that virtual machine is presented,
The virtual disk is established unit 701 and is specifically used for：
According to the root device object of the FILE_DEVICE_UNKNOWN types generated, search what the virtual machine included
Driven object corresponding to virtual disk driver；Driven object according to finding establishes FILE_DEVICE_DISK types
Virtual disk, and the virtual disk to establish specifies drive.
Optionally, the data in magnetic disk acquiring unit 702, can be also used for obtaining the specified magnetic from the remote equipment
The partition information of disk, the partition information include residual capacity, active volume and the total capacity of the designated disk.
The data in magnetic disk processing unit 703, it can be also used for showing the partition information on the cloud desktop.
Optionally, the data in magnetic disk acquiring unit 702, can be also used for working as to receive including for the listed files
Object reading instruction when, obtain content corresponding to the object from the designated disk, and shown on the cloud desktop；When
When receiving the write command of the object included for the listed files, the write command is sent to the remote equipment, so that
The remote equipment is according to the write command in the enterprising row write operation of the designated disk.
The function of modules and the implementation process of effect specifically refer to and step are corresponded in the above method in said apparatus
Implementation process, it will not be repeated here.
It should be noted that the division in the embodiment of the present invention to unit is schematical, only a kind of logic function
Division, can there is other dividing mode when actually realizing.Each functional unit in embodiments herein can be integrated in
In one processing unit or unit is individually physically present, can also two or more units be integrated in one
In individual unit.Above-mentioned integrated unit can both be realized in the form of hardware, can also use the form of SFU software functional unit
Realize.
As shown in figure 8, the embodiment of the present application also provides a kind of remote access disk set, described device includes communication interface
801st, processor 802, memory 803 and bus 804；Wherein, communication interface 801, processor 802, memory 803 pass through bus
804 complete mutual communication.
Wherein, communication interface 801, for being communicated with remote equipment.Processor 802 can be a CPU, memory 803
It can be nonvolatile memory (non-volatile memory), and remote access disk is stored with memory 803 and is patrolled
Instruction is collected, processor 802 can perform the remote access disk logical order stored in memory 803, to realize shown in Fig. 3
Disk method is remotely accessed, for details, reference can be made to the flow shown in Fig. 3.
The preferred embodiment of the application is the foregoing is only, not limiting the application, all essences in the application
God any modification, equivalent substitution and improvements done etc., should be included within the scope of the application protection with principle.
Claims (8)
- A kind of 1. method for remotely accessing disk, it is characterised in that methods described is applied to virtual machine, and methods described includes：Virtual disk corresponding to designated disk on remote equipment is established on the cloud desktop that virtual machine is presented；After virtual disk is established, the listed files and caching of the designated disk are obtained from the remote equipment；When receiving the instruction for accessing the virtual disk, a window is shown on the cloud desktop, and in the window The listed files of display caching, wherein the address field of the window shows local path.
- 2. the method as described in claim 1, it is characterised in that establish on remote equipment and refer on the cloud desktop that virtual machine is presented Determine virtual disk corresponding to disk, including：According to the root device object of the unknown file equipment FILE_DEVICE_UNKNOWN types generated, virtual machine bag is searched Driven object corresponding to the virtual disk driver included；Driven object according to finding establishes the virtual disk of disk file equipment FILE_DEVICE_DISK types, and to build Vertical virtual disk specifies drive.
- 3. method as claimed in claim 1 or 2, it is characterised in that after virtual disk is established, methods described also includes：The partition information of the designated disk is obtained from the remote equipment, the partition information includes the surplus of the designated disk Covolume amount, active volume and total capacity；The partition information is shown on the cloud desktop.
- 4. the method as described in claim 1, it is characterised in that methods described also includes：When receiving the reading instruction of the object included for the listed files, the object pair is obtained from the designated disk The content answered, and shown on the cloud desktop；When receiving the write command of the object included for the listed files, finger is write to described in remote equipment transmission Order, so that the remote equipment operates according to the write command in the enterprising row write of the designated disk.
- 5. one kind remote access disk set, it is characterised in that described device is applied to virtual machine, and described device includes：Virtual disk establishes unit, empty corresponding to designated disk for being established on the cloud desktop that is presented in virtual machine on remote equipment Intend disk；Data in magnetic disk acquiring unit, for being established in the disk after unit establishes virtual disk, obtained from the remote equipment Take the listed files and caching of the designated disk；Data in magnetic disk processing unit, for when receiving the instruction for accessing the virtual disk, being shown on the cloud desktop One window, and in the window display caching the listed files, wherein the window address field show local path.
- 6. device as claimed in claim 5, it is characterised in that establish on remote equipment and refer on the cloud desktop that virtual machine is presented When determining virtual disk corresponding to disk, the virtual disk is established unit and is specifically used for：According to the root device object of the unknown file equipment FILE_DEVICE_UNKNOWN types generated, search described virtual Driven object corresponding to the virtual disk driver that machine includes；Driven object according to finding establishes the virtual disk of disk file equipment FILE_DEVICE_DISK types, and to build Vertical virtual disk specifies drive.
- 7. the device as described in claim 5 or 6, it is characterised in thatThe data in magnetic disk acquiring unit, it is additionally operable to obtain the partition information of the designated disk from the remote equipment, it is described Partition information includes residual capacity, active volume and the total capacity of the designated disk；The data in magnetic disk processing unit, it is additionally operable to show the partition information on the cloud desktop.
- 8. device as claimed in claim 5, it is characterised in thatThe data in magnetic disk acquiring unit, it is additionally operable to when receiving the reading instruction of the object included for the listed files, Content corresponding to the object is obtained from the designated disk, and is shown on the cloud desktop；The text is directed to when receiving During the write command for the object that part list includes, the write command is sent to the remote equipment, so that the remote equipment foundation The write command is in the enterprising row write operation of the designated disk.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346760.1A CN107544751B (en) | 2017-05-17 | 2017-05-17 | Method and device for remotely accessing disk |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710346760.1A CN107544751B (en) | 2017-05-17 | 2017-05-17 | Method and device for remotely accessing disk |
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| CN107544751B CN107544751B (en) | 2021-11-23 |
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| CN201710346760.1A Active CN107544751B (en) | 2017-05-17 | 2017-05-17 | Method and device for remotely accessing disk |
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| CN112528285A (en) * | 2020-12-18 | 2021-03-19 | 南方电网电力科技股份有限公司 | Security protection method and device for cloud computing platform, electronic equipment and storage medium |
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|---|---|
| CN107544751B (en) | 2021-11-23 |
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