KR101618992B1 - System for providing virtual desktop service, control method thereof, recording medium for recording program for executing the control method, application saved in the recording medium for executing the control method being combined with hardware - Google Patents

Abstract

The present invention relates to a virtual desktop service providing system, a control method thereof, a recording medium in which a program for executing the control method is recorded and an application stored in the medium for executing, being integrated with hardware, the control method. The virtual desktop service providing system according to the present invention includes: a management host which stores at least one original image which corresponds to at least one operating system (OS) in a local cache embedded in the management host and manages the original image; and at least one service host which stores, in a local cache embedded in the service host, at least one duplicated image which corresponds to the original image received from the management host by communicating with the management host and provides a user with a virtual desktop service by using the stored duplicated image. The management host transmits the duplicated image which corresponds to the original image, among the original images, which is necessary for each of the service hosts to provide the virtual desktop service, to the corresponding service host and stores a transmission history in the local cache. The service host provides the virtual desktop service after generating and operating at least one virtual machines in accordance with a request of the user by using the duplicated image stored in the local cache embedded in the service host.

Description

[0001] The present invention relates to a virtual desktop service providing system, a control method thereof, a recording medium on which a program for executing the control method is recorded, and an application stored in a medium for executing the control method, THEREOF, RECORDING MEDIUM FOR RECORDING PROGRAM FOR EXECUTING THE CONTROL METHOD, APPLICATION SAVED IN THE RECORDING MEDIUM FOR EXECUTING THE CONTROL METHOD BEING COMBINED WITH HARDWARE}

The present invention relates to a virtual desktop service providing system and a control method thereof, a recording medium on which a program for executing the control method is recorded, and an application stored in a medium for executing the control method in combination with hardware, A virtual desktop service providing system, a control method thereof, a recording medium on which a program for executing the control method is recorded, and a control unit Lt; RTI ID = 0.0 > media.

The virtual desktop service is a service that allows clients to access a predetermined server of the network and perform necessary functions without directly building an operating system (OS) and necessary applications on the client terminal.

For example, using a data center resource, a desktop work environment is provided to individual employees on a network. At this time, a virtual desktop data storage space having an independent operating system for each user is provided. It will perform the task by experiencing the environment which is almost the same as the environment where the application is installed.

In order to store and share virtual desktop OS images in a conventional virtual desktop service providing system such as a virtual desktop service providing system, expensive shared storage such as a SAN (Storage Area Network) and NAS (Network Attached Storage) There is a problem that the total system construction cost is increased.

For example, the cost of building a virtual desktop compared to a personal PC environment can be reduced to about 70%, but the storage cost increases more than 20 times. Because storage performance is a key component of overall system performance degradation, it is critical to select the right storage device and thus increase the cost of building the entire system.

1 is a schematic configuration diagram of a virtual desktop service providing system constructed according to a conventional method.

Referring to FIG. 1, the following will be described.

The Origin image (OS, Standard Application) of the virtual desktop is managed in shared storage, which is one storage space for all hosts. The Broker host (a kind of management host) manages the Origin image and the OS image In the Origin image.

Virtual machines can replicate, link, and store additional data for each Origin image in a single storage space according to the replication method (Full-Clone, Linked-Clone).

However, in the conventional system configuration, when a shared storage failure occurs, a failure occurs in the entire virtual desktop (Cloud PC), and the shared storage needs to be duplicated to the same volume in order to recover from the failure.

Published Patent No. 10-2014-0053549

SUMMARY OF THE INVENTION It is an object of the present invention to provide a virtual desktop service providing system and a control method thereof that enable a virtual desktop service to be provided without expensive mass storage and a program for executing the control method And an application stored in the medium in combination with the hardware to execute the control method.

According to an aspect of the present invention, there is provided a system for providing a virtual desktop service, the system including: a management host that stores at least one original image corresponding to at least one OS (Operating System) Wow; Communicating with the management host, storing at least one copy image corresponding to the at least one original image received from the management host in a self-contained local cache, and providing a virtual desktop service to the user using the stored copy image Wherein the management host transmits a copy image corresponding to an original image required for providing a virtual desktop service of each service host among the at least one original image to the corresponding service host, And the service host creates and drives at least one virtual machine according to a request of the user using at least one copy image stored in its own local cache, and provides the virtual desktop service.

In order to accomplish the above object, the present invention provides a method of storing a copy image of at least one original image corresponding to at least one operating system (OS) according to the present invention in a self-contained local cache, A management host communicating with each service host providing a virtual desktop service to a user includes: a local cache having at least one original image corresponding to at least one OS; A communication unit for communicating with the service host; A copy image corresponding to an original image required for providing a virtual desktop service of each service host among at least one original image stored in the local cache is transmitted to the corresponding service host through the communication unit and the transmission history is stored in the local cache And a control unit.

According to an aspect of the present invention, there is provided a service host communicating with at least one management server that stores and manages at least one origin image corresponding to at least one operating system (OS) A local cache; A communication unit for communicating with the management host; And a service providing unit for storing at least one copy image corresponding to the at least one original image received from the management host through the communication unit in the local cache and providing a virtual desktop service to the user using the stored copy image .

In order to achieve the above object, a control method of a virtual desktop service providing system including a management host and at least one service host communicating with each other for providing a virtual desktop service according to the present invention comprises: Storing an original image corresponding to an operating system (OS) of the image processing apparatus in a self-contained local cache and managing the original image; The management host transmitting a copy image corresponding to an original image required for providing a virtual desktop service of each service host among the at least one original image to the corresponding service host and storing the transfer history in the local cache; The service host stores at least one copy image corresponding to the at least one original image received from the management host in a self-contained local cache, and uses at least a copy image stored in the local cache And creating and running one virtual machine and providing a virtual desktop service.

INDUSTRIAL APPLICABILITY As described above, according to the present invention, in providing a virtual desktop service, it is not necessary to construct a large-capacity storage, thereby reducing system construction cost.

And the OS for operating a virtual desktop service are not stored in a specific storage, thereby solving the problem that all services are limited due to a storage failure.

In addition, virtual desktop services can be immediately provided by other backup hosts even if a specific service host fails through synchronization (backup) between service hosts.

And, when a new service host is added to the network, the management host can maximize the system efficiency by relocating the copy image and additional data even if there is no user operation.

1 is a schematic configuration diagram of a system for providing a conventional virtual desktop service,
2 is a schematic configuration diagram of a system for providing a virtual desktop service according to an embodiment of the present invention,
3 is an example of a functional block of the management host of FIG. 2,
4 is an example of a functional block of the service host of FIG.
5 to 7 are a control flowchart of a system for providing a virtual desktop service according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, embodiments of the present invention will be described in order to facilitate understanding of the present invention, and the present invention is not limited to these embodiments. In particular, the present invention can be configured by combining at least any one of individual components, individual functions, or individual steps included in each embodiment.

A schematic configuration of a virtual desktop service providing system according to an embodiment of the present invention is shown in FIG.

As shown in the figure, the virtual desktop service providing system includes a broker host (i.e., the management host 100) and at least one service host (the host A 210 and the host B 220).

The management host 100 and the service hosts 210 and 220 each have their own local caches 211 and 221 corresponding to storage devices. Here, the local cache may consist of a solid state drive (SSD) whose speed is faster than the hard disk.

The management host 100 stores and manages at least one original image corresponding to at least one OS (Operating System) in its own local cache 101. Here, the original image may be an image including a specific OS.

For example, the local SSD cache 101 of the management host 100 may store an original image corresponding to Windows 7, Windows 8, and Windows XP corresponding to a Microsoft operating system.

The management host 100 transmits the copy image corresponding to the original image required for providing the virtual desktop service of each service host 210 and 220 among the at least one original image to the corresponding service hosts 210 and 220, (101).

The management host 100 also requests the service hosts 210 and 220 to reflect the change by referring to the transmission history when a change to the original image is made.

In addition, when a new service host is added to the network, the management host 100 registers the new service host as a server resource capable of creating a virtual machine by registering the new service host in the resource pool. When a request for a new virtual desktop service is detected by the user, A copy image corresponding to the original image required for providing the requested new virtual desktop service may be transmitted to the new service host to control creation and operation of the virtual machine.

In addition, when a new service host is added to the network as described above, the management host 100 registers the new service host in the resource pool and recognizes the new service host as a server resource capable of creating a virtual machine, The distributed relocation of the copy image and the additional data for providing the virtual desktop service can be automatically performed in consideration of physical resources, physical resources of the existing service hosts 210 and 220, and communication traffic of the respective service hosts 210 and 220.

The management host 100 may include a local cache 101, a communication unit 103, and a control unit 102 as shown in FIG.

As described above, the local cache 101 may include at least one original image corresponding to at least one OS (Operating System).

The communication unit 103 performs a function of communicating with a service host, and may be configured to include, for example, a network interface card (NIC).

The control unit 102 transmits a copy image corresponding to the original image required for providing the virtual desktop service of each service host 210 and 220 among the at least one original image stored in the local cache 101 to the corresponding service host 210 and 220, and stores the transmission history in the local cache 101. [

In addition, the control unit can perform the respective control functions of the management host 100 described above, which is redundant and is omitted.

Each of the service hosts 210 and 220 communicates with the management host 100 to store at least one copy image corresponding to at least one original image received from the management host 100 in its own local cache 211 and 221 , And provides a virtual desktop service to the user using the stored copy image.

That is, the service hosts 210 and 220 generate and operate at least one virtual machine according to a user's request using at least one copy image stored in the local caches 211 and 221, and provide a virtual desktop service.

For example, the host A 210 may store a copy of the original image corresponding to Windows 7 and Windows 8, that is, a copy image, of the original image stored in the local SSD cache 101 of the management host 100 And a copy of the original image corresponding to the Windows 8 in the original image stored in the local SSD cache 101 of the management host 100 may be stored in the host B 220.

Accordingly, the host A 210 can create and run the first virtual machine 301 based on Windows 7 and the fourth virtual machine 304 based on Windows 8, and the host B 220 can generate and run the first virtual machine 301 based on Windows 8 The fifth virtual machine 305 and the eleventh virtual machine 311 can be created and operated. Here, each virtual machine can independently provide a virtual desktop service to the user.

At this time, additional data is generated in each host according to virtual machine creation and driving, and this additional data can be stored in the local SSD caches 211 and 221 of each host.

For example, the host A 210 may create a first virtual machine 301 using a Windows 7 copy image. At this time, an application required for the host A 210 may be installed in a virtual machine after being requested and received by the management host 100 . Information on such additional installed applications may be included in the additional data.

That is, the application copy image itself, which is an image for an application installed additionally, and data generated by application installation and use can be included in the above-mentioned additional data. As another example, the application copy image itself, which is installed additionally, Only the data included in the copy image corresponding to the system and generated by the application installation and use may be included in the additional data.

In addition, the service hosts 210 and 220 receiving the change reflection request from the management host 100 also update the copy image corresponding to the change reflection request.

For example, when an update of the Windows 7 occurs, the management host 100 updates the original image corresponding to the Windows 7 among the original images stored in the local SSD cache 101, and then updates the original image corresponding to the Windows 7 The host A 210 may send a copy of the original image corresponding to the updated Windows 7 to the host A 210 storing the copy of the original image, You can update the copy image of Windows 7 that you were using.

Accordingly, even when a failure occurs in the management host 100 storing the original image for the OS, a necessary copy image for the original images is stored in the local SSD caches 211 and 221 of the service hosts 210 and 220, There is no obstacle for service hosts 210 and 220 to provide virtual desktop services.

Also, when a failure occurs in the local SSD caches 211 and 221 of the individual service hosts 210 and 220 or the corresponding individual service hosts 210 and 220, a failure occurs only in the virtual desktop service performed by the individual service hosts 210 and 220. That is, since the shared storage configuration is not the same as in the prior art, only the failure of each individual service host 210 and 220 occurs, and no failure occurs in the virtual desktop service performed by the other service hosts 210 and 220.

For example, if an error occurs in the copy image corresponding to the Windows 8 of the host A 210, it is impossible to provide the service using the fourth virtual machine 304 based on the Windows 8, The fifth virtual machine 305 and the eleventh virtual machine 311 of the first virtual machine 311 can maintain the operating state and provide the virtual desktop service to the users.

At least one of the service hosts 210 and 220 may serve as a backup host 220 corresponding to the specific service hosts 210 and 220. Each of the service hosts 210 and 220 may be connected to each backup host 220 ) To perform synchronization of the copy image as well as additional data that occurs in addition to the operation of the virtual machine.

2, the host B 220 generates and drives the fifth virtual machine 305 and the eleventh virtual machine 311 to provide a virtual desktop service and the function of the backup host 220 for the host A 210 .

That is, while the copy image and the additional data necessary for driving the first to fourth virtual machines 301 to 304 are stored in the local SSD cache 211 of the host A 210, the host B 210 The local SSD cache 221 of the host A 210 stores the copy image and the additional data necessary for driving the fifth virtual machine 305 to the eleventh virtual machine 311 and performs the backup function of the host A 210 The copy image and the additional data necessary for driving the first virtual machine 301 to the fourth virtual machine 304 are stored through the synchronization process with the host A 210. [

In this case, if a failure occurs in a predetermined service host 210, the backup host 220 corresponding to the failed service host 210 may receive a copy image that has been synchronized with the failed service host 210 before the failure occurs, Additional data can be used to drive virtual machines to provide uninterrupted virtual desktop services to users.

That is, when a failure occurs in the host A 210, a copy image and additional data for providing the virtual desktop service of the host A 210 have already been stored in the host B 220, which is the backup host 220 for the host A 210 The host B 220 can immediately provide the necessary virtual desktop service on behalf of the host A 210.

More specifically, the host B 220 can drive the first virtual machine 301 to the fourth virtual machine 304 on behalf of the host A 210.

In the process of setting the specific service host 220 as a backup host, the backup host 220 communicates with the matched service host 210 to synchronize the copy image and the additional data. And a process of providing a virtual desktop service on behalf of the generated service host 210 may all be performed under the control of the management host 100. [

An example of a functional block of the above-described service hosts 210 and 220 is shown in Fig.

As shown in the figure, the service hosts 210 and 220 may include a local cache 211, a communication unit 213, and a service provider 212.

At least one copy image is stored in the local cache 211 as described above, and the communication unit performs communication with the management host.

The service providing unit 212 stores a copy image (i.e., at least one copy image corresponding to at least one original image) received through the communication unit from the management host in a local cache, And performs the function of providing a desktop service.

In addition, the service providing unit 212 may perform various control functions of the service hosts 210 and 220 as described above.

2, the original image (OS, standard application) for the virtual desktop service is stored in the local SSD cache 101 of the management host 100, and the OS of the virtual machine, Application images and data are stored in the local SSD caches 211 and 221 of the respective service hosts 210 and 220. It can be seen that each image is synchronized, stored and distributed among the respective devices.

Accordingly, most of the R / W (READ / WRITE) operations generated for providing the virtual desktop service in the service hosts 210 and 220 are not processed through the SANs (LANs) Is processed in the local SSD caches 211 and 221 in the service hosts 210 and 220, thereby achieving the effect that the response time is fast and the network traffic is small.

2, the hypervisor refers to a SW virtualization platform between an HW and an OS capable of running a plurality of operating systems (OS) on one host computer at the same time, and is a known technology. do.

Hereinafter, with reference to FIG. 5, a description will be made of a process in which a service host 210 stores and operates a copy image corresponding to an original image in a virtual desktop service providing system according to an exemplary embodiment of the present invention.

The management host 100 stores and manages each origin image corresponding to the operating system necessary for the virtual desktop service to be executed in each service host 210 in the local cache 101 (step S1).

In this case, when the user detects a service application (step S3), for example, when the user selects an operating system, a resource, and the like to request a specific virtual desktop service, the management host 100 transmits a service The host 210 is selected (step S5).

At this time, the management host 100 considers the resource utilization state (for example, the CPU, the memory load state, the network utilization state, etc.) of each service host 210 and 220 in the current network, Can be selected.

Then, the management host 100 extracts the original image required for processing the user's request (step S7), and transmits a copy of the original image, that is, a copy image, to the selected service host 210 (step S9). Of course, if the service host 210 already has a corresponding copy image, this step may be omitted. For this, the management host 100 must manage the copy image history stored in each of the service hosts 210 and 220.

The service host 210 stores the copy image received from the management host 100 in its local cache 211 (step S11).

The management host 100 also transmits an instruction to the service host 210 to perform the virtual desktop service according to the user's request (step S13).

Of course, the transmission of the copy image in step S9 and the transmission of the command in step S13 may be made of one signal.

The service host 210 creates and drives a virtual machine using the copy image of its local cache 211 (step S15). Here, the service host 210 can automatically delete a copy image corresponding to a virtual machine that is not used for a predetermined time.

On the other hand, when the original image stored in the local cache 101 of the management host 100 is updated (step S17), the management host 100 requests the service host 210, which stores the copy image corresponding to the original image, (Step S19), and the service host 210 updates the copy image of the local cache 211 (step S21).

In the above example, only the original image related to the operating system has been described, but it goes without saying that the present invention can be applied to various applications required to provide a virtual desktop service.

As described above, when an operating image required for individual hosts providing a virtual desktop service by executing an actual virtual machine is stored, the virtual desktop service can be normally provided even if the management host 100 fails.

Hereinafter, a process of using the backup host 220 in the virtual desktop service providing system according to an embodiment of the present invention will be described with reference to FIG.

Here, the backup host 220 may be any one of the service hosts 210 and 220 that provide a virtual desktop service even in normal circumstances, or may be a separately provided host that performs a virtual desktop service only in an emergency. In this embodiment, One of the hosts 210 and 220 functions as a backup host 220 as well.

First, the service host 210 (the host A 210 in FIG. 6) selects the backup host 220 (step S31).

For example, the service host 210 may directly communicate with other service hosts 220 in the network and directly select the backup host 220 according to the communication result, The backup host 220 may be selected according to the control.

The backup host 220 can be selected in consideration of the types of available machines, hardware or software resource occupancy, and network communication traffic generation rate among the service hosts 210 and 220.

For example, another service host having the closest type of copy image stored in the service host may be selected as the backup host. That is, a copy image corresponding to Windows 7 is stored in the first host, a copy image corresponding to Windows 7 and Windows 8 is stored in the second host, and a copy image corresponding to Windows 8 and Windows XP When the copy image is stored, the management host 100 selects a second host to the backup host 220 for the first host, communicates with the backup host 220 to perform a backup, As shown in FIG.

The backup host 220 may be changed automatically and dynamically according to the resource utilization rate (margin rate). That is, when the resource utilization rate at the second host surges even after the backup host 220 for the first host is set as the second host, the third host is selected and set as the backup host 220 for the first host .

In this case, under the control of the first host or the management host 100, the second host deletes the copy image and the additional data that have been stored for backup, and the third host receives the copy image and the additional data from the first host and stores And management.

On the other hand, the service host 210 requests the backup host 220 to store the copied image details for providing the virtual desktop service (step S33).

When the copy image description is received from the backup host 220 (step S35), the service host 210 transmits a copy image not stored in the backup host 220 (step S37).

For example, if a copy image corresponding to Windows 7 and Windows 8 is stored in the service host 210, and a copy image corresponding to Windows 8 and Windows XP is stored in the backup host 220, The host 210 can transfer only the copy image corresponding to Windows 7 to the backup host 220. [

When the process host 210 directly communicates with the backup host 220 and determines the type of copy image to be transmitted, when the management host 100 informs the type of the copy image stored in the backup host 220 Can be omitted.

The service host 210 also transmits the additional data generated according to the virtual machine operation to the backup host 220 (step S). Here, the additional data may include an application required for operating the virtual machine, setting values, and data newly generated. That is, all the data except the image corresponding to the OS necessary for providing the virtual desktop service may correspond to additional data.

The copy image transmission process of step S37 and the additional data transmission process of step S39 may be performed by one transmission signal.

The backup host 220 stores the copy image and the additional data received from the service host 210 in its local cache 221 (step S41).

When the backup host 220 detects that a failure has occurred in the service host 210 that has transmitted the copy image or the like to the backup host 220 in step S43, the backup host 220 transmits the copy image and the additional data to the service host 210 , The host A 210), and drives the virtual desktop service (step S45).

Here, the backup host 220 may detect the occurrence of a failure of the service host 210 by periodic communication with the service host 210, but may detect the failure by the control signal transmitted from the management host 100.

For example, the management host 100 communicates with each of the service hosts 210 and 220 to detect a failure occurrence state of each of the service hosts 210 and 220. In this case, the backup host 220 matching the failed service host 210, The failure of the service host 210 can be notified.

It is needless to say that the matching relation between the predetermined service host 210 and the matching backup host 220 is stored in the management host 100.

Hereinafter, a process when a new service host is added to the network will be described with reference to FIG.

The management host 100 continuously monitors the network to detect whether a new service host has been added (step S51).

For example, the management host 100 may periodically send a response request signal to the network, analyze the response signal to the response request signal to determine whether there is a new unregistered new service host, The presence of a new service host may be determined by detecting an active notification signal of the service host.

When the addition of the new service host is detected (step S51), the management host 100 recognizes the new service host as a server resource capable of providing the virtual desktop service by registering the new service host in the resource pool (step S53).

If there is a new virtual desktop service provision request from the user (step S55), the management host 100 firstly selects the newly registered new service host 210 as a service host for providing the requested virtual desktop service ( Step S57).

Then, the management server extracts the original image required for providing the requested virtual desktop service (step S59), and transmits the copy image for the original image to the new service host (step S61).

The new service host 210 stores the copy image in its local cache 211 (step S63).

In addition, the management host 100 can transmit a virtual desktop service execution command to the new service host 210 (step S65), and the new service host 210 can use the copied image of its local cache 211 And generates and drives a machine (step S67).

Although not shown in FIG. 7, the management host 100 may automatically perform the distributed relocation process when addition of a new service host is detected.

For example, the management host 100 may distribute the copy image and the additional data for providing the virtual desktop service, considering the physical resources of the new service host, the physical resources of the existing service hosts, Relocation can be performed automatically.

For example, a first virtual machine 301 using Windows 7 and a fourth virtual machine 304 using Windows 8 are running in the first service host, and a fifth virtual machine 305 using Windows 8 in the second service host When the eighth virtual machine using Windows XP is operated, at the time when a new service host is added, the management host 100 accesses the fourth virtual machine 304 using the Windows 8 running on the first service host, And the fifth virtual machine 305 using the Windows 8 operating in the second service host are both operated in the new service host.

At this time, the copy image corresponding to Windows 8, the additional data due to the operation of the fourth virtual machine, and the additional data due to the operation of the fifth virtual machine can all be received and stored in the new service host. In the first service host, All related images and data are deleted, and in the second service host, all images and data related to the fifth virtual machine can be deleted. Or at least one of the first service host or the second service host may perform the above-described backup host 220 function for the new service host, in which case deletion of the related image and data may not be performed.

Meanwhile, it goes without saying that the process of performing each of the above-described embodiments can be performed by a program or an application stored in a predetermined recording medium (for example, a computer-readable). Here, the recording medium includes an electronic recording medium such as a RAM (Random Access Memory), a magnetic recording medium such as a hard disk, and an optical recording medium such as a CD (Compact Disk).

At this time, the program stored in the recording medium may be executed on hardware such as a computer or a smart phone to perform each of the above embodiments. In particular, any of the components according to the present invention described above may be implemented by such a program or application.

The present invention is not limited to the above-described specific embodiments, and various modifications and changes may be made without departing from the gist of the present invention. It is to be understood that such variations and modifications are intended to be included in the scope of the appended claims.

100: management host 210: service host
220: Backup Host

Claims (16)

A management host for storing and managing at least one origin image corresponding to at least one OS (Operating System) in a self-contained local cache;
Communicating with the management host, storing at least one copy image corresponding to the at least one original image received from the management host in a self-contained local cache, and providing a virtual desktop service to the user using the stored copy image Comprising at least one service host,
Wherein the management host transmits a copy image corresponding to an original image required for providing a virtual desktop service of each service host among the at least one original image to the corresponding service host and stores the transfer history in the local cache,
The service host generates and operates at least one virtual machine according to a request of a user using at least one copy image stored in its own local cache, and provides a virtual desktop service,
When a new service host is added to the network, the management host registers the new service host in the resource pool and recognizes the new service host as a server resource capable of creating a virtual machine,
When a request for a new virtual desktop service is detected by the user, the management host transmits a copy image corresponding to the original image required for providing the requested new virtual desktop service to the new service host to create and run the virtual machine The virtual desktop service providing system comprising: The method according to claim 1,
Wherein the management host refers to the transmission history when a change is made to the original image, requests the service host to reflect the change,
Wherein the service host receiving the change reflection request from the management host updates the copy image corresponding to the change reflection request. The method according to claim 1,
At least one of the at least one service host acts as a backup host corresponding to a specific service host, and each service host communicates with each backup host matched to each service host, And synchronizing the additional data generated in the virtual desktop service. The method of claim 3,
If a failure occurs in at least one of the at least one service host, the backup host corresponding to the failed service host uses the copy image and the additional data that have been synchronized with the failed service host before the occurrence of the failure, The virtual desktop service providing system comprising: delete The method according to claim 1,
When a new service host is added to the network, the management host recognizes the new service host as a server resource capable of creating a virtual machine by registering the new service host in the resource pool, and recognizes the physical resources of the new service host, And distributing a copy image and additional data for providing a virtual desktop service in consideration of resources and communication traffic of each service host. A method for providing a virtual desktop service to a user by storing a copy image of at least one origin image corresponding to at least one operating system (OS) in a local cache, and using the stored copy image, A management host communicating with a host,
A local cache having at least one Origin image corresponding to at least one Operating System;
A communication unit for communicating with the service host;
A copy image corresponding to an original image required for providing a virtual desktop service of each service host among at least one original image stored in the local cache is transmitted to the corresponding service host through the communication unit and the transmission history is stored in the local cache And a control unit,
Wherein the control unit recognizes the new service host as a server resource capable of creating a virtual machine by registering the new service host in a resource pool when a new service host is added to the network, Wherein the management host is configured to generate and run a virtual machine by transmitting a copy image corresponding to the original image required for providing a new virtual desktop service to the new service host. delete A control method of a virtual desktop service providing system including a management host and at least one service host communicating with each other for providing a virtual desktop service,
(a) storing and managing an origin image corresponding to at least one operating system (OS) in a self-contained local cache;
(b) transmitting, by the management host, a copy image corresponding to an original image required for providing a virtual desktop service of each service host among the at least one original image to the corresponding service host, and storing the transfer history in the local cache Wow;
(c) storing the at least one copy image corresponding to the at least one original image received from the management host in a self-contained local cache, and using the copied image stored in the local cache, And creating and running at least one virtual machine according to the virtual desktop service,
When a new service host is added to the network, the management host detects an addition on the network of the new service host and registers the new service host as a server resource capable of creating a virtual machine by registering with the resource pool;
When the management host detects a request for a new virtual desktop service from the user, transmits a copy image corresponding to the original image required for providing the requested new virtual desktop service to the new service host so as to create and operate the virtual machine The method of claim 1, further comprising: 10. The method of claim 9,
When the management host generates a change to the original image, the management host requests the service host to reflect the change by referring to the transmission history;
Wherein the service host receiving the change reflection request from the management host updates the copy image corresponding to the change reflection request. 10. The method of claim 9,
Wherein at least one of the at least one service host acts as a backup host corresponding to a specific service host,
Wherein each service host communicates with each backup host matched to each service host to perform synchronization of additional data generated according to a copy image and a virtual machine operation, / RTI > 12. The method of claim 11,
The backup host corresponding to the failed service host is able to use the copy image and the additional data that have been synchronized with the failed service host before the occurrence of the failure to use the virtual machine Wherein the virtual desktop service providing system further includes a virtual desktop service providing system. delete 10. The method of claim 9,
When a new service host is added to the network, the management host detects an addition on the network of the new service host and registers the new service host as a server resource capable of creating a virtual machine by registering with the resource pool;
The management host automatically performs distributed relocation of a copy image and additional data for providing a virtual desktop service in consideration of physical resources of the new service host, physical resources of an existing service host, and communication traffic of each service host The method of claim 1, further comprising: A computer-readable recording medium recording a program embodying each step corresponding to the method of any one of claims 9 to 12 and 14. 14. An application program implementing each step corresponding to the method of any one of claims 9 to 12 stored in a computer readable medium.

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