Virtualization implementation

What is virtualization?

Virtualization is a technology by which software emulation of computer hardware is possible. Virtualization provides the ability to split a physical server into multiple logical environments. In fact, several virtual machines can be run on the same physical machine. On such virtual computers, you can install applications and operating systems, work with them as separate physical machines.

Virtualization Benefits

  1. Reduced costs for the purchase of additional equipment. Thanks to the introduction of virtualization, about ten virtual machines can be placed on one physical server. This provides a more efficient use of hardware resources.
  2. Reduced energy consumption. Using virtualization can significantly reduce the cost of electricity, since it is necessary only to ensure the operation of actual equipment.
  3. Reduced time to administer server hardware and reorganize IT infrastructure. Using virtualization technologies, the system administrator will be able to serve instead of 10-15 physical servers, about 100 virtual ones. Such virtual servers are easily migrated from one physical machine to another.
  4. The lack of costs for the allocation of resources for solving short-term tasks. For example, creating an environment for testing, allocating additional resources for calculations in the reporting period, or creating a platform for a new service.

Virtualization models

There are three main types of virtualization:
  • hardware virtualization, using this technique it is possible to use several guest systems on one physical computer at once. At the same time, guest operating systems are independent of the hardware platform and the implementation of the virtualization platform.
  • paravirtualization is a virtualization technique that allows you to prepare guest operating systems for execution in a virtualized environment. This is done by slightly modifying the kernel as a result of interaction with the hypervisor, the guest API is provided to the operating system. The paravirtualization method is used when guest OSs are open source with the ability to convert.
  • full virtualization, when using this type of virtualization, the virtual environment guarantees a complete simulation of the underlying equipment.

Virtualization implementation

Virtualization is performed in three stages:
  1. creating a virtualization implementation strategy;
  2. installation of control systems for actual and virtual machines;
  3. installation of security systems and activity protection;
  4. software update for effective work.
Virtualization is currently an effective way to save resources on the enterprise. When implementing virtualization, one physical server can accommodate several virtual ones that will work independently of each other. This allows not only to save enterprise expenses on equipment, but also to increase the productivity of the entire infrastructure.
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