Shulou(Shulou.com)06/01 Report--

This article mainly explains the difference between vps and CVM. The content of the explanation is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn the difference between vps and CVM.

First of all, let's talk about what cloud servers and VPS are. CVM is some actual hardware devices, through virtualization technology, can be large-scale unified scheduling, and as "one" machine technology. You can't see where it is, its CPU, memory, or hard drive, but you can easily operate it as a real-life host, no matter configuring software, testing performance, or uploading files is no different from a traditional server.

The VPS host that we used before, which uses the same virtualization technology as the operating system, has high virtualization efficiency, can share the operating system, does not provide real Root access, and cannot run applications with high performance requirements, without physical isolation, and is only suitable for small-scale concurrent access. Security issues such as malicious websites, viruses, corrupted applications, and improper upgrade of the host operating system of any customer may affect other customers on the same physical host. If your website or application focuses on performance, reliability, and large access, the VPS approach is usually difficult to satisfy.

So is the CVM similar to the VPS virtual host? In fact, VPS is a real host virtualized into multiple small hosts, and its performance is often not guaranteed. While a CVM is a large number of server arrays, many virtual hosts are created after load balancing, and both data security and performance are basically guaranteed. CVM can dynamically balance the load. When your bandwidth, memory and hard disk are insufficient, you can click the mouse to add corresponding services at any time. Through flexible adjustment, you can meet various changing needs and control costs at the same time. This is the biggest selling point of CVM.

It can be said that cloud server is a kind of virtualization technology similar to VPS server. VPS uses virtual software. VZ or VM virtualizes multiple parts similar to independent servers on one server, each of which can be used as a separate operating system, and the management method is the same as the server. A CVM virtualizes multiple independent servers on a group of cluster servers, and each server in the cluster has an image of the CVM, thus greatly improving the security and stability of the virtual server. unless all the servers in the cluster have problems, the CVM will not be accessible.

The advantages of CVM over VPS can be summarized as follows:

Flexible expansion: everyone who has been an architect must know that estimating usage is a very unreliable thing. If you use a physical server, if you estimate too much, it is a waste of money; if you estimate less, it is not enough to cause the website to open slowly. However, if you use a CVM, you can easily expand it and use as much as you want, without the need to estimate the amount in advance.

Operation and maintenance is simple: what is the most expensive resource at present? It is a talent, and the manpower cost is an expenditure that can not be ignored for every enterprise. The use of cloud servers can greatly reduce the manpower costs of server operation and maintenance.

Reliability: if there is something wrong with the physical server, fix it yourself, and migrate the cloud server directly in minutes.

Finally, the most important point: price. CVM may be a little more expensive than VPS, but in terms of configuration and feature advantages, CVM is still a cost-effective IDC business.

Thank you for your reading. The above is the content of "the difference between vps and CVM". After the study of this article, I believe you have a deeper understanding of the difference between vps and CVM, and the specific usage needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.