Desktop virtualization
With the desktop virtualization (or it is a desktop or is so desktop virtualization), you are called the client virtualization [1], but, in a client server model, carry out plural desktop environment using virtualization. Virtual desktop infrastructure (VDI; virtual desktop infrastructure or virtual desktop interface[2]) Including hardware and the software for とは, virtual environment point to the server system for desktop virtualization [3] [4]. I am divided into remote desktop method and a client hyper visor method whether you carry out whether you carry out desktop environment in a server side by a client-side. When I contribute it from a public cloud over the Internet, I am called DaaS (Desktop as a Service). The remote desktop method may be called presentation virtualization.
Table of contents
Remote desktop method
These much technical corporate implementation runs a virtualized desktop with a central server of the remote not the local storage of the client of the remote. That is why all programs and data carry it out on a server, and they are kept when a user uses it. I transfer a screen to a client as remote desktop. I can in this way carry out the OS and application on a machine more than the performance of the hardware including the smartphone tablet thin client.
Client hyper visor method
Some virtualization platforms can run plural virtual machines using a hyper visor with the local hardware such as PCs at the same time. This technique is called a client hyper visor. Because the virtual machine image is made with a central server and is managed, it is local, and, as for the change to a desktop imagination machine, both merits to control portability and the machine image by what I carry out intensively are provided because I am reflected through a network by the machine of all users using it. However, it is not portable than pure client server architecture because higher-performance hardware environment is necessary that this method is local and carries out the image of the virtual machine. In addition, I can use this method without building a server, and there is a merit that plural desktop imagination machines are available to small organization or individuals flexibly.
Definition
The desktop virtualization packages access to all information of the system environment or system environment in itself to a client device of the remote and has a technique to send. The client device uses it in the totally different hardware architecture from original desktop environment and may operate it on the OS different at all.
As for the desktop virtualization model, plural users are available on the server that different Desktop was performed one central dispatching of every individual. The central server is the company, and datacenter has it. The user may separate geographically, but it is necessary to be connected to the central server in networks such as LAN or the Internet.
Good and bad points
As for the resource joint ownership model peculiar to desktop virtualization, a computer is advantageous in for a conventional model to work as a perfection self conclusion type unit of the individual operating system, peripheral device, application. Because a resource is assigned to a user as needed and can share a resource again, as a whole, an expense of the hardware may decrease. Because all data are maintained in datacenter and can back it up, the virtualization improves the consistency of data of the user info potentially.
The advantage includes the following:
- A desktop image is controllable
- It is simpler and provides the new desktop environment (プロビジョニング)
- Reduction of the cost to deploy new application
- Shortening of the downtime at the time of the hardware obstacle
- Longer replacement by purchase cycle of the desktop facilities of the client
- Safe remote access to corporate desktop environment
- In the case of remote desktop method, the following increases, too
- Reduction of the hardware cost
- It is feasible in the environment that is higher-performance than a client-side
Restrictions of the desktop virtualization:
- Problem on setting up the screwdriver of a printer and other peripheral devices, and maintaining it
- It has difficulty in carrying out specific complicated application (multimedia)
- Potential security risk when a network is not managed appropriately
- When a network disorder occurs, it is increased the downtime. I can prevent it by use of the cluster file system.
- Increase of the dependence to the network in the company or the Internet
- Cost increase of complexity and VDI introduction and the management [5]
Allied item
Reference
- ^ John Lamb (2009). The Greening of IT: How Companies Can Make a Difference for the Environment. Pearson Education. p. 95. It is reading ISBN 9780137150830 on C April 12, 2010. "...] client, or desktop, virtualization. [...] The concept of client virtualization-often called thin-client computing-is not a new concept...] "
- ^ "Virtual Desktop Interface". Networkworld.com. April 1, 2010 reading.
- ^ Cloud-based desktops a reality
- ^ Paula Rooney. "VMware, Linux ISVs Launch Alternative Desktop Models - Desktop Software". InformationWeek. March 17, 2010 reading.
- ^ Microsoft Windows Enterprise: Virtual Desktop Infrastructure VDI - - Virtual desktop infrastructure delivers the flexibility you need
This article is taken from the Japanese Wikipedia Desktop virtualization
This article is distributed by cc-by-sa or GFDL license in accordance with the provisions of Wikipedia.
In addition, Tranpedia is simply not responsible for any show is only by translating the writings of foreign licenses that are compatible with CC-BY-SA license information.
0 개의 댓글:
댓글 쓰기