云服务器的五大特征(云服务器包括哪些组成部分)

1. Elastic service, the service scale can be quickly scaled, and it has been automatically put into trial operation without dynamic changes in load. The resources used by users are consistent with business needs, avoiding service quality degradation or resource waste caused by server performance overload or redundancy.
2. Resource pooling, resources are managed uniformly in a shared resource pool. Using virtualization technology, resources are shared with different users, and resource placement, management, and allocation strategies are transparent to users.
3. On-demand services provide users with resources such as applications, data storage, and infrastructure in the form of services, and can automatically allocate resources according to user needs without the need for system administrator intervention.
4. The service can be billed, monitor the user's resource usage, and bill the service according to the resource usage.
5. Ubiquitous access, users can use various terminal devices (such as PCs, laptops, smartphones, etc.) to access cloud computing services through the Internet anytime and anywhere.
It is these five characteristics of cloud computing that allow users to store personal information through the cloud and interact on social networking sites. This allows users to deal with matters in life and work more efficiently. Convenient.

Simpler and more efficient. Users can quickly create or release as many cloud servers as they want without purchasing hardware in advance. Reduce the difficulty of development and operation and maintenance and overall IT costs, allowing you to focus more on core business innovation.
The advantages of cloud servers are based on cloud computing technology. Compared with independent servers, they have the following characteristics:
1. From a technical perspective: cloud servers use cloud computing technology. Cloud computing technology integrates various software and hardware technologies such as computing, network, and storage. A standalone server is independent and will not integrate these resources.
2. In terms of security: cloud servers have natural protection against ARP attacks and MAC spoofing, snapshot backup, and data will never be lost. Independent servers do not have this function;
3. In terms of reliability: cloud servers are based on server clusters, so the hardware redundancy is high and the failure rate is low; while independent servers are relatively There is less hardware redundancy and a higher failure rate;
4. In terms of flexibility: users can add their own configurations online in real time, and the scalability space is large; independent servers have limitations in this regard. If there are new applications, you can only buy another one.
5. From a performance perspective: cloud servers have four times the computing power of independent servers with the same configuration, which can meet the requirements of high-performance computing;
6. From a stability perspective, cloud servers can fail Automatic migration means that if a cloud server fails, the applications on it will automatically migrate to other cloud servers. Independent servers do not have this function, and if they go down, they will go down.
7. From the perspective of energy saving, cloud servers are based on the automatic migration technology of cloud computing, which means that at night, the utilization rate of physical servers is not high. The automatic migration technology will concentrate applications on several physical servers, and other physical servers will The server can then sleep, thus saving energy.

The five basic characteristics of cloud computing are: 1. Elastic service; the scale of the service can be quickly expanded to automatically adapt to dynamic changes in business loads. 2. Resource pooling; resources are managed uniformly in a shared resource pool. 3. On-demand services. 4. The service can be billed. 5. Ubiquitous access; users can use various terminal devices to access cloud computing services through the Internet anytime and anywhere.

Extension: Cloud computing is a type of distributed computing, which refers to the decomposition of huge data computing processing programs into countless small programs through the network "cloud" , and then process and analyze these small programs through a system composed of multiple servers to obtain the results and return them to the user.