Features of cloud desktop and desktop virtualization

Cloud Desktop as desktop virtualization refers to virtualizing the desktop of a computer to achieve the security and flexibility of desktop use. Access to our personal desktop systems on the Web can be accessed from any device, at any location, at any time.

Server virtualization and Desktop virtualization use a software kernel called the hypervisor to run multiple operating systems on the same physical server hardware. Each operating system is independent and has the dedicated resources needed.

Because businesses can purchase modern servers that configure multiple processors, large amounts of memory, storage, and high-bandwidth network connectivity, each operating system has the same powerful computing power as a single server. Operating systems and applications rarely use all available resources, especially at the same time. As a result, more operating systems and applications can coexist in one hardware, resulting in better hardware utilization.

The cloud desktop and desktop have the following features:

1. Virtualization makes the most efficient use of server hardware

Many servers are very low in utilization over most of the day. Adding multiple operating systems and applications can help you effectively take advantage of these expensive server resources. Because a single server can run many virtual machines, the enterprise can significantly reduce the total cost of hardware.

2. Virtualization builds redundant servers with better fault tolerance

The hypervisor runs the operating system and its applications migrate from one system to another. If a hardware server or operating system or application fails, these operating systems and applications can be migrated to a hypervisor running on a different physical server. Large servers generally have better fault tolerance than small servers. For example, two large servers have better application migration capabilities than more than 10 small servers and provide better fault tolerance, while consuming less power and easier management.

3. Simplified management

Since all operating systems in one hypervisor can be managed through a simple interface, and the system can get more computing resources as needed, it is easier to manage dozens of virtual servers than to manage more than 10 physical servers. Each operating system must be managed separately, but the available plugins can also simplify the process.

4. Partitioning the application to different operating systems for increased availability

In general, a physical server will run an operating system. That operating system will have multiple server applications, such as Web servers, e-mail servers, database servers, and so on. However, running multiple server applications on one operating system will increase the likelihood of one application interfering with another application, causing bottlenecks and even system crashes. By partitioning applications into different virtual machines, each application has its own operating system and resources, which reduces interference between applications.

5. Simplify the setup of new server prototyping, testing and migration

Using virtualization, creating an additional server for testing takes only a few minutes and does not require any additional hardware. In contrast, buying a new physical server (or keeping an existing server for testing) is expensive, and installing the operating system and applications is time-consuming. Because existing virtual machines are able to use all operating system settings and application cloning, it is a very simple process to replicate a production system for testing new patches or new versions of the application.

6. Energy Saving

While the server has taken a big step toward saving energy, running one or two large servers is still cheaper than running more than 10 or more servers. With the latest servers, core pauses and other features allow resources to be shut down during unused time, further reducing energy consumption. A large server hosting more than 10 virtual machines may not consume more power than a small server at low usage rates. Large servers can replace more than 10 small servers.

This article is from the "Divinity New Space" blog, please make sure to keep this source http://abool.blog.51cto.com/8355508/1586507

Features of cloud desktop and desktop virtualization