What is cloud computing? Let's first understand what cloud computing is in a broad sense:
Cloud computing mainly provides convenient and configurable computing resource sharing pools (resources include networks, servers, storage, application software, and services), and these resources are very easy and convenient to obtain and use.
If it is not clear, I will give you an example. If the resources mentioned above are compared to tap water, then Alibaba Cloud is a "water plant". When you want to use water, you don't need to open a water plant by yourself, but just turn on the faucet and pay the water plant for your own consumption.
Cloud computing can be roughly divided into two types, one is a proprietary cloud, the other is a public cloud, and the two are mixed together to form a hybrid cloud. Let's not talk about this for the time being. Proprietary cloud is the deployment of virtualization and cloudization software in the enterprise data center.
The so-called public cloud is the deployment of virtualization and cloud software in the cloud manufacturer's own data center. Users do not need to invest a lot. As long as they register an account, they can click on a web page to create a virtual computer.
In addition, cloud computing can be divided into infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS) according to service types.
If you don’t understand it very well, let’s take building a house as an example. When there is no cloud, everyone is building their own house. Later, it is found that the cost is relatively high. It is necessary to ask professionals to build and maintain it. If the building is too large, it will not be wasteful. , The building is too small if there are too many people and not enough, so there is a cloud.
IaaS——It is equivalent to a commercial house. The builder can build it and buy it. If it is not enough to buy another set (you can return it at any time). The specific purpose of the house is determined by yourself, and you are still responsible for the decoration of the house. IaaS generally buys a host. Users not only need to develop programs, but also consider building systems, maintaining the operating environment, how to tolerate disasters, how to achieve high availability, and how to expand capacity.
PaaS——It is equivalent to renting a house. There are certain restrictions on what the house can do. However, the landlord who decorates the house has done everything, and it is more convenient to rent if it is not enough. PaaS is the operating environment of the service. The service provider provides capacity expansion and disaster tolerance mechanisms. The user is responsible for developing the program, but the program needs to match the environment on the Paas, which is not as free as IaaS.
SaaS-equivalent to a hotel, you can rent a room when you need it. If you don't live, you don't have to worry about room maintenance at all. There are different styles of hotels and different layouts of rooms for you to choose from. SaaS provides specific services, multi-tenant public system resources, and higher resource utilization.
After introducing cloud computing and service types, let's talk about what cloud computing services Alibaba Cloud provides.
Cloud computing provided by Alibaba Cloud
Since its establishment in 2009, Alibaba Cloud has always insisted on independent research and development, and is committed to providing safe and reliable computing and data processing capabilities through online public services, making computing and artificial intelligence into inclusive technologies (if you want to learn more, You can log in to the official website of Alibaba Cloud).
Today, Alibaba Cloud has opened 56 availability zones in 19 regions around the world, providing reliable computing support for billions of users around the world. In addition, Alibaba Cloud deploys more than 200 Feitian data centers for global customers, and provides customers with a globally unique hybrid cloud experience through the underlying unified Feitian operating system.
However, at the 2019 Alibaba Cloud Summit·Beijing, Zhang Jianfeng, President of Alibaba Cloud Intelligence, told everyone that Alibaba Cloud itself does not do SaaS, but lets everyone do better SaaS. In addition, a SaaS accelerator was released on the spot to bring better support to SaaS developers.
Here are a few examples to give you a more intuitive understanding of the cloud computing services provided by Alibaba Cloud.
**1. Cloud computing behind Double 11**
Every year on Double 11, there will be a large wave of traffic, and it is Alibaba Cloud that supports it.
During Double 11 in 2018, Alibaba Cloud’s newly called elastic computing capacity cumulatively exceeded 10 million cores, which is equivalent to 10 large data centers, creating a new record of "pulse computing";
Alibaba Cloud's self-developed Shenlong flexible bare metal server solves the performance bottleneck under high peak traffic. Real-time calculation of Blink processing peak value reached 1.718 billion per second, which is equivalent to the data volume of 1.2 million Xinhua dictionaries;
Cloud Shield provides tens of millions of risk identification services for customers on the cloud, and exports high-definition DDoS technologies to the world to ensure global business. Based on these technology bases, the entire system is more calm when dealing with traffic peaks.
2. Cloud computing behind the World Cup
During the 2018 World Cup, Alibaba Cloud provided technical services for Youku, CNTV, CCTV5 clients, etc. through more than 1,500 CDN nodes around the world and 120T of bandwidth. 11 concurrent traffic.
The unique "Narrowband HD 2.0" can reduce the traffic consumption of the platform and users by 30% under the premise of ensuring the image quality, and the layering and transparency of the game screen has also been greatly improved.
The emergence of 50-frame ultra-clear technology transforms the original 25-frame-per-second ordinary TV signal into a high-frame-rate video content of 50 frames per second, allowing you to have a smoother immersive experience when watching the game.