Shulou(Shulou.com)11/24 Report--

Nothing can stop me from yearning for money.

Although bravely beating workers is not afraid of difficulties, the usual meetings and reviews are enough to exercise the minds of workers. Is there any way to beat workers' bodies without having to carry the mainframe?

Yes, there is! That is server virtualization technology!

What is server virtualization technology when it comes to server virtualization technology, it has a wide range of applications in our daily life. For example, commonly used Wechat, Taobao, health code and other applications, are running on virtualized servers.

What's the difference between virtualized servers and familiar personal computers?

The following picture shows the composition of a personal computer, including software (operating system, application software), hardware (CPU responsible for computing, hard disk and memory responsible for storage, various interfaces and network cards responsible for transmission), etc.

In order to facilitate the management of the data and multi-person operation, the server can no longer save the data on a person's dedicated computer. As a result, servers were born.

We are familiar with the scene, is a group of several people set up a FTP or SVN to manage files, generally find an ordinary computer to install software can be used as a server. When I was at school, it was the same with Warcraft and everything. In the scenario where there are higher business requirements, it is necessary to choose dedicated server equipment.

Virtualized servers are the product of virtualizing server resources.

Speaking of which, perhaps the first question that pops up in everyone's mind is:

What is virtualization? Virtualization is a fragmentation-based technology.

The birth of the previous server solves the problem of multi-user use, but with the expansion of the number of teams, assuming that each team uses one server, some servers are used more and some are less. And sometimes the capacity of the server will explode, such as double 11.

How can we improve the efficiency of the server and flexibly deploy the resources of the server?

The method used now is to split the physical resources such as CPU, memory, I / O interface and other physical resources of traditional computers into many logical resource particles in the form of fragments by means of virtualization. The advantage of this is to turn the physical resources that could not be shared before into small building blocks. When in use, you can use these small logical resource building blocks to form the desired business shape.

The fragmentation of physical resources by virtualization is only an appearance, and behind it, what is more important is the ability to centralize the management of fragmented resources.

So why is centralized management at the core of virtualization?

For example, some virtual currencies are worthless because they have nothing behind them except the concepts blown by swindlers. Behind the national sovereign currency, a national credit system is endorsing. The stronger the comprehensive strength of a country, the more valuable its currency will be. It is believed that with the enhancement of China's national strength, the proportion of RMB in the global payment currency will gradually increase, and the exchange rate of RMB will continue to rise.

Accordingly, the virtualization technology also needs strong management ability to support it. For fragmented physical resources, only by relying on a centralized, effective and reliable management platform can virtualization technology really serve us without dropping the chain at a critical moment.

The advantages of virtualization technology first, fragmentation to reduce costs from the above analysis, the advantages of virtualization technology, on the one hand, comes from the fragmentation of physical resources.

According to statistics, for traditional servers, 90% of the servers have a CPU occupancy rate of less than 10% of the time. It's like when you go to work to your computer, you spend most of your time brushing email and typing, and occasionally you need to run heavy programs. So the computers we configure to meet the upper limit spend most of the time fishing legally.

Before virtualization, computers were like anti-aircraft guns. When you wanted to shoot mosquitoes, you had only one weapon and could only fire.

After virtualization, the original anti-aircraft gun was divided into many parts, using all the firepower to masturbate, the firepower to shoot tigers, and the firepower to shoot mosquitoes. When others want to fight dinosaurs, they can lend out the firepower they don't need for the time being.

The "fragmentation" of virtualization realizes the sharing of resources, significantly improves the utilization of resources, and can bring tangible financial benefits:

It can reduce the purchase cost of hardware by about 50%. In the past, I bought 100 computers for 100 people, but if I switched to a virtual server for 100 people, it would cost about half as much as before.

It can reduce operating costs by about 50%. In the past, the electricity bill for 100 computers and the heat dissipation cost for heating can be turned off temporarily without using hardware and save about half of the cost if they are replaced by a virtual server.

Second, centralized management improves the advantages of flexibility and reliability of virtualization technology, on the other hand, it comes from the centralized management of virtual resources.

More flexible. You can deploy resources flexibly according to your needs. When you use more, you will give more resources, and when you use less, you can recover idle resources. And for resources that we do not use for a long time, we can also turn off the corresponding hardware power supply, and then re-power distribution when it is needed, which is economical and affordable.

More reliable. In the event of a failure, you have to carry the computer to repair or reinstall it, which is time-consuming and laborious. After using the virtualized server, because the users only use part of the virtual resources, and the virtual hardware resources and storage resources are separated, they can switch to other resources without failure at any time. Through centralized scheduling management, it is even possible to achieve uninterrupted and user-insensitive switching.

More convenient. Because resources are concentrated in the cloud, there is no need to move mainframes when telecommuting is needed, such as an epidemic. As long as you install the corresponding software, you can access the interface of daily work on any computer.

There are so many benefits of server virtualization, now these applications are just wet water.

Like electricity, computers and the Internet, server virtualization technology will be the foundation for the future.

In some science fiction films, such a picture has been depicted that the future human beings can access the fancy world of meta-universe through some portable terminals, while the core functions of those small terminals should be just access. Complex computing and storage capacity are virtualized servers located at the remote end.

In the future, with the development of science and technology, the virtualized servers responsible for computing and storage, as well as the network that connects us to virtualized servers, will certainly become a kind of existence that we use all the time, but it is difficult to perceive. It is as natural as breathing air, and as necessary as air is to us.

The era when you don't have to worry about terminal configuration and network signals is bound to come.

This article comes from the official account of Wechat: ZTE documents (ID:ztedoc)

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