By vantal Cloud computing has become an important development trend in the digital age. IT not only changes the IT infrastructure model of enterprises, but also brings more flexible, convenient and low-cost technical services to individuals and organizations. Xiaobian will discuss the core technology of cloud computing and how to understand its core concepts.要想获得品牌赞誉，美国独立服务器就需要有不断提升产品质量的精神，还要有一束永远浇不灭的心火。谷咕云计算是阿里云国际、腾讯云国际、华为云国际、亚马逊云(AWS)、谷歌云(GCP)、微软云(Azure)等国际云平台的官方服务商，同时租赁美国、香港、新加坡等地云/独立/站群/高防服务器，提供中国或者全球范围内的国际云平台账户开通、充值和租用服务。可USDT、支付宝支付、可退款。https://www.kaihu123.com/Server/independent-servers-in-the-united-states/
First, the core concept of cloud computing
Cloud Computing refers to providing scalable computing resources (such as computing power, storage, network, etc.) services on demand through the Internet. Its core idea is to abstract the hardware and software resources in the traditional computing mode and provide flexible, efficient and low-cost services through virtualization technology.
On-demand self-service: users can dynamically acquire or release computing resources according to their own needs without purchasing hardware equipment or installing software in advance. Service providers will provide the required resources according to the needs of users.
Extensive network access: Cloud computing resources are accessed through the network, and users can use these services at any time and any place through Internet connection. It supports a variety of terminal devices, including PC, mobile phone, tablet and so on.
Resource pooling: The cloud computing platform concentrates a large number of physical and virtual resources in the data center, and dynamically allocates these resources to different users through virtualization technology. Users don’t need to care about how to allocate resources, just use them according to actual needs.
Fast flexibility: Cloud computing is highly flexible and scalable, and users can quickly increase or decrease computing resources according to their needs. This enables cloud computing services to respond to users’ business changes in a short time.
Pay-as-you-go: Cloud computing adopts a pay-as-you-go model, and users pay according to the actual computing resources, without having to invest a lot of money in advance. This model lowers the threshold for the use of IT resources and enables small enterprises and start-ups to enjoy advanced technical services.
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Second, the core technology of cloud computing
The realization of cloud computing is inseparable from the support of various technologies. The following are several core technologies of cloud computing:
Virtualization technology: Virtualization technology is one of the core technologies of cloud computing. Through virtualization, physical resources (such as computing, storage and network) can be divided into multiple virtual resource pools, which can be shared by multiple users and flexibly configured. Common virtualization technologies include server virtualization, storage virtualization and network virtualization. Virtualization technology enables cloud services to provide resources on demand and ensure efficient use of computing resources.
Distributed storage: Cloud computing relies on large-scale data storage, and distributed storage technology provides an efficient way to store and access data. By distributing data on storage devices in multiple physical locations, the cloud platform can provide higher availability and redundant backup. Distributed storage solves the problem of data loss caused by single equipment failure, and also improves the speed and capacity of data access.
Big data technology: Cloud computing services often involve massive data processing and analysis. Big data technology supports the cloud platform to store, process, analyze and mine data efficiently. Through distributed computing frameworks (such as Hadoop, Spark, etc.), the cloud platform can process large-scale data tasks in parallel on multiple nodes, thus gaining insight quickly and providing decision support.
Containerization technology: Containerization is a lightweight virtualization technology in cloud computing, which allows applications and their dependent packages to be packaged into independent containers. Containers have the advantages of fast startup and high resource utilization, and are widely used in microservice architecture and continuous delivery scenarios. Compared with traditional virtual machines, containers are lighter and more efficient, which can improve the flexibility and scalability of cloud computing platforms.
Automation and orchestration Technology: Automation and orchestration technology enable the cloud platform to automatically allocate resources and manage the life cycle of services according to user needs. For example, Auto-Scaling can automatically increase or decrease computing resources according to load changes, ensuring high availability of applications. Orchestration technology can automate the deployment, coordination and management of multiple service components and improve operational efficiency.
Network Function Virtualization (NFV) and Software Defined Network (SDN) NFV and SDN are important technologies for cloud computing platform to achieve efficient network management. NFV allows network services (such as routing, firewall, load balancing, etc.) to be deployed on general hardware in a virtualized way, reducing the dependence on special hardware devices. SDN manages network traffic through centralized control, which makes the network more flexible and programmable, and can dynamically adjust the allocation of network resources.
Security technology: The security of cloud computing is one of the most concerned issues when users use cloud services. Cloud computing platforms usually protect the security of data and services through technologies such as multiple authentication, data encryption, access control and firewall. At the same time, cloud service providers will regularly conduct security audits and compliance inspections to ensure that the cloud platform meets relevant laws and regulations.
Third, the service model of cloud computing
According to the needs of users, cloud computing can be divided into different service models. The three common service models are:
Infrastructure as a Service) IaaS): IaaS provides virtualized computing resources, such as virtual machines, storage and networks. Users can create and manage these resources according to their needs, which is suitable for users who need high flexibility and control rights. Famous IaaS service providers include Amazon Web Services(AWS) and Microsoft Azure.
Platform as a Service) PaaS): PaaS provides the basic platform for developers to develop, test and deploy applications. It usually includes operating system, database, middleware, etc. Users do not need to care about the management of the underlying hardware or operating system. Google App Engine and Microsoft Azure are typical PaaS services.
Software as a Service) SaaS): SaaS provides ready-made software applications, and users can directly access these applications through the Internet without local installation and maintenance. Typical SaaS services include Google Drive, Microsoft 365 and Salesforce.
The core technologies and concepts of cloud computing are closely related. Virtualization technology, big data processing, containerization and automation together constitute the technical framework of cloud computing. Cloud computing not only changes the construction and usage mode of traditional IT infrastructure, but also provides enterprises and individuals with more flexible and low-cost computing resources. With the continuous development of technology, the application scope of cloud computing will be further expanded to promote the digital transformation of all walks of life.