Basics of Virtualization: What is Virtual and Virtualization? Why do we need Virtualization? Benefits of Virtualization. Before and after Virtualization. How Virtualization works? Virtual Machines. VMware Types of Virtualization: 1. Server Virtualization 2. Storage virtualization 3. I/O virtualization 4. Network virtualization 5. Client virtualization 6. Desktop virtualization 7. Application Virtualization

1. Basicsof
Virtualizations
Presented By: Rubal Sagwal
(Unit-1)

2. Introduction[1]
Now a days single most important issue in IT.
Why?
• Due to scarcity of resources.
• To reduce power consumption.
• To trim the buildings.
• Less land requirement.
• Provide high availability for critical applications.
• Allow organization to respond faster in changing
environment.
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3. WhatisVirtual?
Not physically existing as such
but made by software to appear
to do so.
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4. Whatis
Virtualization?
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5. What isVirtualization?
Virtualization is creation of replica – rather than actual
– version of something. Such as Operating System, a
Server, a Storage device or Network.
Ex: Hard Drive partition.
• It’s a process of creating virtual resources.
• Mimicking things.
• Single machine to act as many machine.
• Emulation.
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6. Why do we needVirtualization?
Virtualization can increase IT quickness, flexibility and
scalability while creating significant cost savings.
Virtualization, To manage workload.
• Increased performance.
• Better utilization of resources.
• Availability of resources.
• Increased automation.
• Save time.
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7. Benefits ofVirtualization
• Reduced capital and operating costs.
• Minimized or eliminated interruption.
• Increased IT productivity, efficiency, agility and
responsiveness.
• Faster provisioning of applications and resources.
• Greater business continuity and disaster recovery.
• Simplified data center management.
• Availability of a true Software-Defined Data Center..
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8. Before andAfter
Before Virtualization
• There was a single OS image per machine.
• The software and hardware remained to be tightly
coupled.
• The resources were not utilized optimally.
• Inflexible and costly infrastructure.
After Virtualization
• Hardware-independence of operating system and
applications.
• Virtual machines can be provisioned to any framework.
• Able to manage the OS and application as a single unit
by encapsulating them into virtual machine.
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9. HowVirtualizationWorks[2]
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10. Virtual Machines (VMs)[1]
Software + Hardware
An abstraction of the computer hardware that allows a single machine to act as if there are
many machines.
• Without VMs: A single OS owns all hardware resources.
• With VMs: Multiple OS, each running its own VMs, share hardware resource.
• Virtualization enables multiple operating systems to run on the same physical platform.
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11. Video
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12. Typesof Virtualization[2]
1. Server Virtualization
2. Storage Virtualization
3. I/O Virtualization
4. Network Virtualization
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5. Client Virtualization
6. Application Virtualization
7. Desktop Virtualization

13. 1. ServerVirtualization
• Server Virtualization is the partitioning of a
physical server into smaller virtual servers to help
maximize your server resources.
• In server virtualization the resources of the server itself
are hidden, from users, and software is used to divide
the physical server into multiple virtual environments,
called virtual or private servers.
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14. ServerVirtualization uses and Benefits
• Common uses of Server Virtualization
• Web servers.
• Virtual Web servers is a popular way to provide low-cost
Web hosting services. Instead of requiring a separate
computer for each Web server, dozens of virtual servers
can co-reside on the same computer.
• Benefits of Server Virtualization
• Independently reboot the system
• Less space required.
• Using a lower number of physical servers reduces
hardware maintenance.
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15. 2. I/OVirtualization
• I/O virtualization technology allows a single physical
adapter to be visualized as multiple virtual network
interface cards (vNICs) and virtual host bus
adapters(vHBAs).
• Lower layer abstract upper Layer Protocol.
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16. 3. StorageVirtualization
• Storage Virtualization is the pooling of physical storage
from multiple network storage devices into what
appears to be a single storage device that is managed
from a central support.
• Storage virtualization is commonly used in storage area
networks.
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17. 4. NetworkVirtualization
• Network Virtualization is a method of combining the
available resources in a network by splitting up the
available bandwidth into channels.
• Each of which is independent from the others and can
be assigned -- or reassigned -- to a particular server or
device in real time.

18. 5. ClientVirtualization /
DesktopVirtualization
• Desktop Virtualization/ Client Virtualization is virtualizing
a workstation load rather than a server.
• Separate a computer desktop environment from the
physical computer.
• Provide remote access.
• Multiple user/client using same application from remote
locations.
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19. 6. ApplicationVirtualization
• Application Virtualization is abstracting the application
layer away from the operating system.
• Application can run in an encapsulated form without
being depended upon on the operating system.
• This can allow a Windows application to run on Linux
and vice versa, in addition to adding a level of isolation.
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20. References
1. https://software.intel.com/en-us/articles/the-advantages-of-using-virtualization-technology-in-the-enterprise
2. https://searchservervirtualization.techtarget.com/definition/virtualization
3. https://searchitchannel.techtarget.com/feature/Key-concepts-for-server-storage-and-client-virtualization
4. https://www.flackbox.com/server-virtualization-simplified-tutorial
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21. ThankYou!
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