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Virtualization: A Comprehensive Overview

What is Virtualization?

Virtualization is a technology that allows multiple virtual machines (VMs) to run on a single physical host machine. Each VM runs its own operating system (OS) and applications, independent of the host machine's OS.

Types of Virtualization

1. Server Virtualization

Server virtualization involves creating multiple virtual servers on a single physical server. This allows for better resource utilization, improved scalability, and enhanced disaster recovery.

2. Desktop Virtualization

Desktop virtualization involves creating virtual desktops that can be accessed remotely. This allows users to access their desktops from anywhere, on any device.

3. Application Virtualization

Application virtualization involves packaging applications in a way that allows them to run on any device, without being installed on the device.Application virtulization is usually achieved using container technologies like Docker and LXC.

4. Network Virtualization

Network virtualization involves creating virtual networks that can be used to connect virtual machines and devices.

Hypervisors

A hypervisor is a piece of software that creates and manages virtual machines. There are two main types of hypervisors:

1. Type 1 Hypervisor

A Type 1 hypervisor runs directly on the host machine's hardware, without the need for an underlying OS.

Examples:

  • VMware ESXi
  • Microsoft Hyper-V
  • KVM (Kernel-based Virtual Machine)

2. Type 2 Hypervisor

A Type 2 hypervisor runs on top of an existing OS, using the OS to manage the virtual machines.

Examples: - VMware Workstation - VirtualBox - Parallels Desktop

Containers

  • Dockers
  • LXC

1. VMware vSphere VMware vSphere is a popular virtualization platform that provides a comprehensive set of tools for managing virtual machines and infrastructure.

2. Microsoft Hyper-V Microsoft Hyper-V is a virtualization platform that provides a scalable and secure way to deploy virtual machines.

3. KVM (Kernel-based Virtual Machine)

KVM is an open-source virtualization platform that provides a scalable and secure way to deploy virtual machines.

4. Proxmox VE

Proxmox VE is an open-source virtualization platform that provides a comprehensive set of tools for managing virtual machines and infrastructure.

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