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

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

The classic description of the difference between cloud computing and server virtualization is that virtualization is a major way for cloud computing to build a resource pool.

To put it simply, cloud computing is a concept, not a specific technology. Virtualization is a specific technology, which refers to the products that virtualize hardware resources to achieve isolation, scalability, security, full utilization of resources and so on.

About Cloud platform

At present, cloud platforms mostly rely on virtualization, by virtualizing multiple server entities to form a resource pool to achieve common computing and share resources. That is, the so-called cloud server, in fact, before the term was put forward, the server cluster in the past had already achieved these functions, but it was not as advanced as it is now.

CVM is a pay-per-use model, which provides available, convenient, on-demand network access to a pool of configurable computing resources (including networks, servers, storage, applications, services). These resources can be provided quickly with little administrative work or little interaction with service providers.

The most basic features of cloud computing are pay-as-you-use, resource sharing pools and multi-tenant isolation.

About Virtualization

Virtualization is a technology of integrated management and reallocation of computer hardware resources by means of software. the common methods are virtual machine-based virtualization and container-based virtualization.

Virtual machine-based virtualization provides the same input and output performance as physical hardware through a software layer encapsulation. The decoupling between operating system and computer hardware is realized, and the relationship between OS and computer is changed from 1 to 1 to many (actually 1 to many).

Container virtualization is a lightweight virtual machine without GuestOS. Multiple containers share an OS kernel. The container contains the application to be deployed and the system environment it depends on. The container size is usually only a few dozen to a few hundred MB. Because of the shared operating system kernel, the container depends on the underlying operating system, and most operating systems have their own container technology and container tools.

This is the difference between server virtualization and cloud shared by Xiaobian. 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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