The Virtualization of the operating system is the use of code to allow computer hardware to run multiple instances of different operating systems.

Concurrently permits you to run various applications requiring different systems on one computer system.

It is also known as OS-level virtualization. It is a virtualization technology that works on the OS layer. In this, the kernel of an OS allows more than one isolated user-space instance to exist. such instances are known as container/software or virtualization engines. In other words, the OS kernel will run on a single system and offer that operating system’s functionality to copy on each of the isolated partitions.

Uses of OS Virtualization

  1. It is used for the virtual hosting environment.
  2. Used in securely allocation of finite hardware resources among a large number of different users.
  3. System administration users it to consolidate server hardware by moving services on separate hosts.
  4. To improvised security by separating various applications to various containers.
  5. These types of virtualization don’t need hardware to work efficiently.

How OS Virtualization Works

The steps for how virtualization works are given below;

  1. Connect to OS virtualization.
  2. Connect to the virtual disk.
  3. Then connect this disk to the client.
  4. OS is streamed to the client.
  5. In further addition, streaming is required; it is done.

Advantages of OS Virtualization

  1. OS virtualization usually inflicts little or no overhead.
  2. OS virtualization can live migration.
  3. OS virtualization can also use dynamic load balancing of the container between nodes and a cluster.
  4. The file-slevel copy-on-write (COW) mechanism is possible on OS virtualization, which makes facile to backup files, more space-efficient and easy to cache than the block-level-copy-on-write schemes. 

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