Virtualization and its types

2. AJENDA
 Operating System Virtualization
 Network Virtualization
 Hardware Virtualization
 Storage Virtualization
 Desktop Virtualization

3. Virtualization

4. 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.

5. Hardware Virtualization
 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.

6. Network Virtualization
 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.

7. Storage Virtualization
 There are two types of Storage virtualization
1. Block Virtualization.
2. File Virtualization.

8. Storage Virtualization
Block 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.

9. Storage Virtualization
File Virtualization
 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.

10. Desktop Virtualization
 Desktop virtualization is a software technology that
separates desktop environment and application
software.
 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
virtualization.

11. Reference:
 http://www.techopedia.com/definition/601/desktop-virtualization
 http://en.wikipedia.org/wiki/Virtualization
 http://www.techstagram.com/2013/04/02/virtualization/