虚拟化是云计算的支撑技术(云计算虚拟化技术与应用)

Virtualization is one of the most important core technologies of cloud computing. It provides infrastructure-level support for cloud computing services and enables ICT services to quickly move towards cloud computing. the main driving force. Many people have misunderstandings about cloud computing and virtualization, thinking that cloud computing is virtualization. But in fact, virtualization is only an important part of cloud computing, but it cannot represent all cloud computing. The biggest benefit of virtualization is to enhance the elasticity and flexibility of the system, reduce costs, improve services, and improve resource utilization efficiency.
Distributed data storage technology, by storing data in different physical devices, can achieve dynamic load balancing, automatic takeover of failed nodes, high reliability, high availability, and high scalability. Because in a multi-node concurrent execution environment, the status of each node needs to be synchronized, and when a single node fails, the system needs an effective mechanism to ensure that other nodes are not affected.
Resource management technology. Cloud computing requires the processing and analysis of distributed and massive data. Therefore, data management technology must be able to efficiently manage large amounts of data. The platform management technology of cloud computing systems requires the ability to efficiently allocate a large number of server resources so that they can work better together.
Energy management technology. The benefits of cloud computing are obvious, but as its scale grows, the energy consumption of cloud computing itself cannot be ignored. The first step to improve energy efficiency is to upgrade network equipment, add energy-saving modes, and reduce power consumption when network facilities are not fully used. In addition to reducing the energy consumption of data transmission, optimizing the network structure can also reduce the transmission power of the base station, because the base station is the bridge between the cloud and the terminal to transmit information.
Information security. Data shows that security has become one of the main reasons hindering the development of cloud computing. Cloud security can be said to be a problem left over from the traditional Internet, but on the cloud computing platform, security issues have become more prominent. In the cloud computing system, security involves many levels, including network security, server security, software security, system security, etc. Now both software security vendors and hardware security vendors are actively developing cloud computing security products and solutions.
As for the key technologies of cloud computing, Qingteng editor will share them with you here. If you have a strong interest in big data engineering, I hope this article can help you. If you want to know more about the skills and materials of data analysts and big data engineers, you can click on other articles on this site to learn.

1. Cloud computing is the development and commercial realization of concepts such as distributed processing, parallel computing and grid computing. Its technical essence is computing, storage, servers, Virtualization of IT software and hardware resources such as application software, cloud computing has its own unique technologies in virtualization, data storage, data management, programming models, etc.
2. The five key technologies of cloud computing are as follows: cloud computing platform management technology, distributed computing programming model, distributed massive data storage, massive data management technology, and virtualization technology.
3. Virtualization is one of the most important core technologies of cloud computing. It provides infrastructure-level support for cloud computing services and is the main driving force for ICT services to rapidly move toward cloud computing. Many people have misunderstandings about cloud computing and virtualization, thinking that cloud computing is virtualization.

1. Virtualization technology

Virtualization is one of the most important core technologies of cloud computing. It provides the foundation for cloud computing services. Support at the architectural level is the main driving force for ICT services to rapidly move towards cloud computing. It can be said that without virtualization technology, there would be no implementation and success of cloud computing services.

2. Distributed data storage technology

Another major advantage of cloud computing is its ability to process massive amounts of data quickly and efficiently. In today's world of data explosion, this is crucial. In order to ensure high reliability of data, cloud computing usually uses distributed storage technology to store data in different physical devices. This model not only gets rid of the limitations of hardware devices, but also has better scalability and can quickly respond to changes in user needs.

3. Programming model

In essence, cloud computing is a multi-user, multi-tasking system that supports concurrent processing. Efficiency, simplicity and speed are its core concepts. It aims to conveniently distribute powerful server computing resources to end users through the network while ensuring low cost and good user experience. In this process, the choice of programming mode is crucial.

4. Large-scale data management

Processing massive data is a major advantage of cloud computing. So how to process it involves many levels, so efficient data processing technology is also one of the indispensable core technologies of cloud computing. For cloud computing, data management faces huge challenges. Cloud computing must not only ensure data storage and access, but also enable specific retrieval and analysis of massive data.

5. Distributed resource management

Cloud computing uses distributed storage technology to store data, so it is natural to introduce distributed resource management technology. In a multi-node concurrent execution environment, the status of each node needs to be synchronized, and when a single node fails, the system needs an effective mechanism to ensure that other nodes are not affected. The distributed resource management system is exactly such a technology, and it is the key to ensuring the system status.

6. Information Security

Survey data shows that security has become one of the main reasons hindering the development of cloud computing. Data shows that ICT management of 32% of organizations that have already used cloud computing and 45% of organizations that have not yet used cloud computing cite cloud security as the biggest obstacle to further cloud deployment. Therefore, in order to ensure the long-term stability and rapid development of cloud computing, security is the primary issue that needs to be solved.

7. Cloud computing platform management

Cloud computing resources are huge in scale, with numerous servers distributed in different locations and hundreds of applications running at the same time. How to effectively manage these servers? , it is a huge challenge to ensure that the entire system provides uninterrupted services. The platform management technology of cloud computing systems requires the ability to efficiently allocate a large number of server resources so that they can work better together.

8. Green energy-saving technology

Energy conservation and environmental protection are the major themes of the entire global era. Cloud computing is also known for its low cost and high efficiency. Cloud computing has huge economies of scale and saves a lot of energy while improving resource utilization efficiency. Green energy-saving technology has become an indispensable technology for cloud computing, and more and more energy-saving technologies will be introduced into cloud computing in the future.

Cloud computing services can be IT, software, Internet-related, or any other services. This pool of resources is called a "cloud". "Cloud" is some virtual computing resources that can be self-maintained and managed, usually some large server clusters, including computing servers, storage servers, broadband resources, etc. Cloud computing application models can be divided into SaaS, PaaS, IaaS, and MSP. SaaS applications like virtualization are a broad term that, in computing terms, generally refers to computing elements running on a virtual basis rather than a real basis. Virtualization technology can expand the capacity of hardware and simplify the reconfiguration process of software. Virtualization technology is mainly divided into the following categories: 1. Platform virtualization (PlatformVirtualization), which is aimed at virtualization of computers and operating systems. 2. Resource Virtualization (ResourceVirtualization), virtualization for specific system resources, such as memory, storage, network resources, etc. 3. Application virtualization (ApplicationVirtualization), including simulation, simulation, interpretation technology, etc.
Virtualization and cloud computing complement each other. The first step in the implementation of cloud computing is IAAS, and the cloud infrastructure itself is built on virtualization technology.