Virtual server involves a concept, that is, server virtualization. So what is server virtualization? JTTI overseas cloud console brings a detailed explanation below!
The physical resources of the server are abstracted into logical resources, and a server becomes several or even hundreds of virtual servers. We are no longer limited by the physical boundary, but to make the CPU, memory, disk, I/O and other hardware become a resource pool that can be dynamically managed, thereby improving resource utilization, simplifying system management, realizing server integration, making IT more adaptable to adapt to Business changes ___ This is server virtualization.
1. Virtualization technology has its advantages
It solves hardware bottlenecks such as memory and I/O, but also brings hidden safety hazards. For example, it destroys the normal network architecture, causing virtual servers to be attacked or some cases occur.
The virtual server will also be affected; it may cause the system server to overload. If the server is overloaded to a certain extent, it may cause the running program of each virtual server to be too slow and affect the use of customers.
More serious ones may cause the physical server system to crash, causing unavoidable losses to customers; it will also cause the virtual machine to lose security protection, the chance of the server is attacked greatly, and the security risk brought by the virtual machine patch.
Second, server virtualization system
One of the advantages of the virtual machine is to reduce the power supply and heat dissipation cost of the server, while making the operation simpler, safer, and more convenient for users to manage the server.
In addition, the deployment of virtual machines is much faster than deploying physical machines. You can cloned or deploy a new virtual server within a few seconds to continuously change and meet different business needs.
At the same time, in order to make the company's data more secure, the virtualized server can run a application server on multiple servers, which means that when a server fails or is attacked, it can continue to run on another server.
