Virtualization Overview

Understanding Type 1 and Type 2 virtualization.

Virtualization Overview

Let's understand the traditional way of building a computer. You go out to purchase every single component separately like — Motherboard, Memory, Video Cards, power supply, CPU, CD-ROM, Floppy Disk, Hard Drive, and Operating System, and bring them all at home to assemble together. When you install the Operating System on this hardware it is attached to the hardware. If the hardware fails the Operating System dies. This makes it very difficult to find those hardware components and ship them to your location to bring those servers back on time.

Virtualization has solved this problem by simply creating another layer to separate the underlying physical hardware from the operating system. This means the operating system is no longer attached to the physical hardware. This virtualization allows you to run different operating system instances on the same hardware. This virtualization layer is called a hypervisor. There are two types of hypervisors- Type 1 and Type 2

Type 1 Hypervisor — also called a native or bare-metal hypervisor. You have physical hardware on top of which you…