What is virtualization? What is virtualization used for?

Virtualization refers to the virtualization of one computer into multiple logical computers through virtualization technology, and it is a broad term that aims to simplify IT infrastructure. Virtualized objects can include servers, the Internet, desktops, and the virtualization of archive space. Since the concept of virtualization was introduced, its advantages have been known to most people, and server virtualization has become popular, and for a long time in the past, half of the world's servers have been virtualized.

Some of its own problems are gradually exposed in front of everyone, such as: the process of server virtualization subverts some of the original basic structure, so that the security of the virtual server has no way to be guaranteed, on this basis, access to some software may produce the harm of personal privacy outflow, which will also affect the server that is jointly virtualized, and its preservation method also greatly increases the probability of information theft. According to a systematic study, most virtual servers are more vulnerable to attack than physical servers.

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Network virtualization is currently the most unclear and controversial concept in the industry. In Microsoft's eyes, "network virtualization" refers to virtual private networks (VPNs). VPNs abstract away the concept of network connectivity, allowing remote users to access an organization's internal network as if they were physically connected to that network.

Network virtualization can help protect the IT environment from threats from the Internet, while enabling users to quickly and securely access applications and data. You can refer to it, thank you.

Virtualization refers to the virtualization of one computer into multiple logical computers through virtualization technology.

Running multiple logical computers at the same time on a single computer, each running a different operating system, and applications can run in separate spaces without affecting each other, significantly improving the productivity of the computer.

Virtualization is a broad term that refers to computing elements running on a virtual basis rather than a real one, and is a solution designed to simplify management and optimize resources.

Just like an empty and transparent office building, there are no fixed walls on the entire floor, and users can build a more autonomous and applicable office space at the same cost, thereby saving costs and maximizing the utilization of space.

This idea of re-planning limited fixed resources according to different needs to achieve maximum utilization is called virtualization technology in the IT field.

Virtualization technology can expand the capacity of hardware and simplify the process of reconfiguring software.

The CPU's virtualization technology can emulate multiple CPUs in parallel with a single CPU, allowing multiple operating systems to run on one platform at the same time, and applications can run in independent spaces without affecting each other, thus significantly improving the productivity of computers.

Virtualization technology is completely different from multitasking and hyper-threading technology.

Multitasking refers to the simultaneous parallel running of multiple programs in an operating system, while in virtualization technology, multiple operating systems can be run at the same time, and there are multiple programs running in each operating system, and each operating system runs on a virtual CPU or virtual host; However, the hyper-threading technology only simulates a single CPU to balance the performance of the program, and the two simulated CPUs cannot be separated, but can only work together.

Virtualization is also a huge technological advancement, unlike VMware Workstation, which also achieves virtual effects, in terms of reducing the overhead associated with software virtual machines and supporting a wider range of operating systems.

In the implementation of computer server virtualization, the device and IO are also computer systems.

The main components of the department also need to be virtualized in order to promote the virtualization of servers. Compared with memory virtualization, the main bandwidth of device, IO and network port virtualization is realized through professional packaging technology, which is a virtual machine.

technical support is provided for the operation.

It often meets the needs of virtual machines for device access and iO, and lays a solid foundation for the virtualization of devices and ios in the computer server virtualization platform. In the specific operation, there are certain differences in the computer server in the computer server in the model, configuration, parameters, etc., but the specific realization of the computer server, the exchange of data and information between the virtual machine and the physical machine, showing the effect of the application of server virtualization technology. The rational application of this technology can not only expand the application scope of computer server virtualization technology, but also greatly reduce the information age or bench.

The degree of dependence on the computer's underlying hardware. As long as a virtual platform is built, it can be migrated to different physical machines.

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How can I tell you, before the virtualization is closed, your computer room will be quickly split with 5 servers, and you need to go up one by one to see and occupy space.

After virtualization, one physical machine can virtualize five virtual servers, which can be managed and allocated to the platform in a unified manner. And the footprint is the space of a server. The benefits are numerous. In addition, virtualization involves distributed switches and other functions.

The role of virtualization is as follows:

1.Reduce the number of servers, provide a method of server consolidation, and reduce the initial hardware purchase.

2.Simplify the deployment, management, and maintenance of servers and reduce overhead.

3.Improve the utilization rate of server resources and improve the computing power of servers.

4.Reduce data center costs by reducing space, cooling, and power consumption.

5.Improve IT's flexible adaptability to the business through dynamic resource allocation.

6.Improve availability and bring a highly reliable server application environment with transparent load balancing, dynamic migration, automatic fault isolation, and automatic system reconfiguration.

7.The support of the elderly supports the integration of heterogeneous operating systems to support the continuous operation of old applications.

8.System updates are made without interrupting the work of users.

9.Enables rapid transfer and replication of virtual servers, providing a simple and convenient disaster recovery solution.

Virtualization is the process of creating software-based (or virtual) representations of components such as virtual applications, servers, storage, and networking.

In computers, virtualization is a resource management technique that combines computers of all kinds.

Entity resources, such as servers, networks, memory, and storage, are abstracted, transformed, and presented, breaking down the structure of entities.

The uncut barriers allow users to apply these resources in a better way than the original configuration. The new void of these resources.

The proposed part is not limited by the way the existing resources are erected, geographically or physically. Generally, virtualization resources include metering.

Computing power and data storage.

In the actual production environment, virtualization technology is mainly used to solve the overcapacity of high-performance physical hardware and the old one.

The reorganization and reuse of hardware production capacity is too low, and the underlying physical hardware is transparent, so as to maximize the use of physical hardware to charge resources.

Distribution. There are many types of virtualization technologies, such as: software virtualization, hardware virtualization, memory virtualization, network virtualization (VIP), etc

Desktop virtualization, service virtualization, virtual machines, and more.

Fully virtualized architecture.

A virtual machine monitor (hypervisor) is something similar to a user's application running on top of the host's OS, such as.

VMware's Workstation, a virtualization product that provides virtual hardware.

This problem is a bit big! Shouldn't it be a limited field?