Operating System Virtualization
It typically allows you to run and install any kind of
Operating system like Windows or a Linux on your
existing operating system.
It requires a Virtual Machine Manager (VMM) which
allows you to install and manage multiple operating
systems running simultaneously.
VMware is probably the one of the most used Virtual
Machine Manager’s today.
Hardware virtualization or platform virtualization refers
to the creation of a virtual machine that acts like a real
computer with an operating system.
Eg: A computer that is running Microsoft Windows may
host a virtual machine that looks like a computer with
the Ubuntu Linux operating system; Ubuntu-based
software can be run on the virtual machine.
There is a hypervisor (VMM) which is used to control
processor, memory and other firmware resources.
In simple words network virtualization is a process of
creating smaller bandwidth channels taken from the
hardware and providing it to different virtual servers.
The aim is to provide better network availability to all
the virtual servers and of course to cut down cost.
In Network Virtualization, Two (or more) virtual
networks can be created within the same physical
network belonging to the same IP range also.
There are two types of Storage virtualization
1. Block Virtualization.
2. File Virtualization.
In Block Virtualization, multiple storage devices are
consolidated, which actually appears as a single
physical storage device.
This helps the administrators in many ways such as
Load Balancing, optimizing performance and speed.
File Virtualization, as the name suggests, is the file or
directory stored within the hard drive, which is located
in a data center.
The file may not be stored within your personal folder;
in fact the folder might not even have your own name,
it may be located in a data center across the globe.
Desktop virtualization is a software technology that
separates desktop environment and application
Virtualized desktops are generally hosted on a remote
central server, rather than the hard drive of the
personal computer. Because the client-server
computing model is used in virtualizing desktops.
Desktop virtualization is also known as client