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

In this issue, the editor will bring you about the difference between the server and the CVM. The article is rich in content and analyzes and describes it from a professional point of view. I hope you can get something after reading this article.

The server is a real physical device running in the computer room, with independent hard disk, memory, CPU, operating system and so on. A CVM is a part that virtualizes multiple independent servers on a group of cluster servers. Each machine in the cluster will have an image backup of the CVM.

I. Resources

Cloud server (CVM) uses cloud computing technology to integrate hardware and software resources, uses virtualization technology, and is based on server cluster. It is flexible and scalable, and users can buy it on demand.

However, the resources of the server are generally fixed, it is not easy to upgrade or expand, it is easy to waste resources, and the cost is higher than that of the CVM.

II. Operation

When a hardware failure occurs on a machine in the CVM, the system will automatically access the mirror backups on other machines, which improves the stability of the host. It has the same function and usage as the server, with independent IP and bandwidth. Users can install a variety of operating systems and configure a variety of website operating environments as needed.

After the failure of the traditional server, there is no automatic jump function, the website will not be opened, until the failure of the server is repaired, it can continue to be used normally.

No matter in terms of performance or stable operation, cloud servers are far better than traditional servers. However, the cloud host also has its shortcomings, which are vulnerable to network attacks. However, the current high-defense service technology is becoming more and more mature, such as professional ddos high-defense can defend against common traffic attacks.

The above is the difference between the server and the CVM shared by the editor. If you happen to have similar doubts, please refer to the above analysis to understand. If you want to know more about it, you are welcome to follow the industry information channel.

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