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What is the difference between a cloud server and a virtualized server? Many novices are not very clear about this. In order to help you solve this problem, the following editor will explain it in detail. People with this need can come and learn. I hope you can gain something.

A CVM is a part that virtualizes multiple independent hosts on a group of cluster hosts. Each host in the cluster has an image of the CVM, and each part can be used as a separate operating system.

Virtualized server is to turn a server into several or even hundreds of virtual servers isolated from each other, which is no longer limited to physical boundaries, but makes hardware such as CPU, memory, disk and Imax O become a "resource pool" that can be managed dynamically, so as to improve the utilization of resources and simplify system management.

Types of server virtualization

There are mainly "one virtual many", "many virtual one" and "many virtual many". "one virtual many" is a server virtual into multiple servers, that is, a physical server is divided into multiple virtual environments that are independent of each other and do not interfere with each other. "multiple virtual one" means that multiple independent physical servers are virtualized into a logical server, making multiple servers cooperate with each other and deal with the same business.

In addition, there is the concept of "more than one virtual", that is, multiple physical servers are virtualized into a logical server, and then divided into multiple virtual environments, that is, multiple businesses run on multiple virtual servers.

Technical basis of CVM

Cloud servers are based on the existence of cloud computing platforms. Technically speaking, running or supporting cloud computing does not require server virtualization. The cloud should be open and can work with any type of infrastructure according to customer needs, thus supporting different types of virtual devices. Cloud is a new architecture, a new way to deliver IT services in a more flexible, efficient, and cost-effective way.

Cloud computing server has become an important model of disaster recovery, it can not only establish a backup point, but also maintain the service advantage of "pay as you grow", so that enterprises can respond to business opportunities more quickly while ensuring high returns.

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