Shulou(Shulou.com)06/02 Report--

2018, as cloud computing enters its second development decade, the global cloud computing market tends to grow steadily, and the market size will reach 246.1 billion US dollars by 2021. China's cloud computing market is in a stage of rapid growth and is expected to maintain rapid growth from 2018 to 2021. By 2021, the public cloud market will reach 90.26 billion yuan, and the private cloud market will reach 95.57 billion yuan. The application of cloud computing has penetrated into traditional industries such as government, finance, industry, transportation, logistics, health care and so on.

The Institute of Standard Technology under the U.S. Department of Commerce defines cloud computing as a model that can access and improve the availability of computing resources (including networks, servers, storage, applications and services, etc.) in a convenient, on-demand way through the network. these resources come from a shared and configurable pool of resources and can be accessed and released in the most labor-saving and unmanned way.

After the definition, let's take a look at the characteristics of cloud computing. The industry has mainly put forward the following five points:

Extensive network access, on-demand self-service, measurable service, fast flexible scaling, resource pooling.

Many friends, especially those born in the 1980s, have to go to work for more than ten years, and they should have a deep understanding of the changes in It in recent years.

In the last 10 years, the IT facilities of enterprises have become very complex, and there are a lot of problems, which is understandable, because the more complex the environment, the more problems. We do IT architecture and management of friends, the most profound experience. Let's talk about a few typical problems, business online speed, TCO costs and L bottlenecks.

There are many links in the launch of the business. According to the traditional way to go online, generally need to go through the purchase of hardware, according to the deployment of software, business debugging and other stages. The time spent generally ranges from weeks to months. Business systems generally need to be maintained, because there are many servers, so they are basically responsible for part of the equipment, decentralized maintenance. If you encounter a hardware or software failure, it often leads to business interruption. Business recovery time, depending on the size of the failure, may take hours or even days, this loss is very huge. Moreover, in the traditional IT architecture, the hardware server is generally designed as a single fixed server. For example, SAP server, Oracle database server, Web server and so on.

As a result, hardware resources can only be used by specific software businesses. If the utilization rate is high, that's all. However, there are often a lot of business, not busy, so the utilization of hardware is not high, resulting in a huge waste of resources.

In addition to the waste of single hardware server resources, in the degree of design of IT architecture, it is more difficult to grasp the capacity requirement assessment of the overall resources.

As we all know, in the traditional computer architecture, the speed of CPU is much faster than that of memory, and the speed of memory is much faster than that of hard disk. Therefore, when the data flows directly between CPU and memory, memory and hard disk, there is a performance bottleneck of IO.

To sum up, the three major pain points of the traditional IT architecture mentioned above are in urgent need of new architectural changes.

What is this new structure and new change?

More than 60 years have passed since the development of IT from the 1950s to today. However, with the increase in the complexity and scale of the business, we find that the nature of the traditional single PC and server is more and more difficult to meet the needs of computing power, so we gather the servers to the cloud, integrate resources, and rely on wireless cloud hardware resources to support the operation of the business.

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