What does linux Virtualization mean

This article mainly explains "what linux Virtualization refers to". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn what linux Virtualization means.

In linux, virtualization is a kind of resource management technology, which can abstract various physical resources of the computer and transform them into virtual computer resources for programs to use, in order to maximize the rational use of physical resources.

The operating environment of this tutorial: linux7.3 system, Dell G3 computer.

What is linux Virtualization

Virtualization is a kind of resource management technology, which abstracts and transforms all kinds of computer physical resources (CPU, memory, disk space, network adapter, etc.) and can be used to divide and combine one or more computer configuration environments, and re-divide and recombine in order to maximize the rational use of physical resources.

Virtualization technology is a technology that abstracts computer physical resources and converts them into virtual computer resources for programs to use. The computer resources referred to here include the computing control resources provided by CPU, the data storage resources provided by hard disk, the network transmission resources provided by network card, and so on.

Virtualized benefit

(1) over-allocation of resources, such as 128 GB of physical memory, can allocate 200 GB of memory to the virtual machine, which is generally used in the test environment and is not recommended in the production environment.

(2) reduce the cost of capital and operation and maintenance

(3) minimize or eliminate downtime

(4) improve the efficiency, efficiency, agility and responsiveness of IT department.

(5) accelerate the deployment of applications and resources

(VI) improve business continuity and disaster recovery capabilities

(7) simplify data center management

(8) availability of real Software-Defined Data Center

(9) reduce port conflicts

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