Shulou(Shulou.com)06/03 Report--

What is the difference between a CVM and a vps? Compared with stand-alone servers, more enterprises tend to choose cloud hosts or vps to deploy their network business.

VPS is a physical server that is divided into multiple virtual private servers with virtual machines. The cloud server is an independent host similar to VPS, which is separated from the physical server cluster based on cloud computing.

1. Security.

Using the vps host, if the program defects installed on other VPS on the same server, it may have a serious impact on its own server, and the prevention ability is weak.

CVM has built-in APP defense, large-scale enhancement of ddos anti-attack features, built-in data backup and recovery and other features. Load balancing can be carried out, even if attacked or Trojans, you can also use other mirror servers to ensure the normal operation of the site.

two。 Stability.

The CVM is deployed on a large-scale server cluster array, and there is an image of the CVM on each machine in the cluster. Even if a server lease fails, it will be automatically migrated to other CVMs to continue to run smoothly.

While the VPS host does not support hot migration, if there is a problem with the physical server, the VPS will also go wrong. Once the physical server has a hardware failure, it will affect the normal work of the website.

3. Data storage

Vps mostly uses the traditional storage architecture and uses RAID mode to ensure the reliability of data, while cloud computing servers use multi-copy backup mechanism for distributed storage.

In order to ensure the consistency among multiple data replicas, CVM distributed storage usually uses the strong consistency technology of writing one copy and reading multiple replicas, using mirror, stripe, distributed check and other methods to meet the reliability requirements.

4. Virtualization technology

Vps uses traditional virtualization technology to divide an independent server into multiple virtual proprietary servers, while the cloud host uses cloud computing virtualization technology to dispatch server hardware devices on a large scale and treat it as a virtualization product of the "whole" machine.

The website provides many types of CVM products. The CVM is strong, stable, secure and reliable. 4 copies of the data of each CVM are retained, plus different machine backups are added, so that the data is safe and secure.

As a senior professional cloud computing service provider and cloud security service provider in the industry, it is committed to providing cloud servers for Internet enterprise users and enterprise users in traditional industries. Its products have the characteristics and advantages of "security and stability, easy to use, high service availability, high performance-to-price ratio" and are designed to be customized for enterprises to meet the needs of rich and diversified application scenarios.

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