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7/27/2019 Virtual Unlocks Cloud
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DEEPTI SINGH
I.T. (7 th Sem)
0611333108
HMR Institute of Technology &Management
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GOALS
Virtualization and its typesWhy we need virtualization?Architecture of virtualizationWhat is cloud computing & its types
How virtualization unlockscloud computing
Participants will leave withan understanding of
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HOW VIRTUALIZATION
UNLOCKS
CLOUD
COMPUTING
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WHAT I S VIRTULIZATION?
Ability to run multiple virtual machines on asingle piece of hardware
Enables you to install multiple operating systems
These Multiple operating systems runsimultaneously and independently, in their ownsecure environment
Works with minimal reduction in performance
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HISTORY OF VIRTUALIZATION
Concept- by Jim Rymarczyk(1960s)
Implemented by IBM
Reason - to maximize computers efficiency
Massive growth in the use of computer technology created new
problems, likePROBLEM : Low hardware utilization
SOLUTION : Hardware virtualization
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HARDWARE VIRTUALIZATION
Most common & used in IT departments
It breaks one application one server barrier
Allow us to run different OS & different applicationsimultaneously on the same hardware
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ARCHITECTURE OF FULL AND PARA VIRTUALIZATION
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FULL VIRTUALIZATION Implemented using special software called HYPERVISOR
It provides complete independence of each virtual server to other virtual servers running on the same physicalmachine .
Para-virtualization Guest system can feel the presence of each other
OS level virtualization Does not include the use of a hypervisor
Hosting OS, performs all the functions of the hypervisor
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ARCHITECTURE OF OS L EVEL VIRTUALIZATION
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WHAT IS THE BEST METHOD ?
Same operating system OS-level virtualization.
Several different operating systems Para-virtualization.
OS virtualization is faster and more efficient than
other methods
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DESKTOP VIRTUALIZATION
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DESKTOP VIRTUALIZATION
Allows the use of virtual machines to let multiplenetwork subscribers maintain individualized desktops
on a single, centrally located computer or server
Involves encapsulation
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DESKTOP MODEL CAN BE EMPLOYED IN FOLLOWING TWO WAYS ..
Remote Desktop Virtualization
(Server-Hosted )
Local Desktop Virtualization
(Client-Hosted )
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S TORAGE VIRTUALIZATION :
Refers to the separation of logical storage from physical
storage
Allows the Systems Admin increased flexibility in how theymanage storage for end users
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NON VIRTUALIZED ARCHITECTURE
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VIRTUALISED ARCHITECHTURE
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MAJOR PLAYERS
Red HatHPIBMOracle
Leading players :VM Ware
CitrixMicrosoft
Other players who have entered the market:
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WHAT IS CLOUD COMPUTING ?
Cloud Computing is defined as a pool of virtualizedcomputer resources.
It involves delivering hosted services over theInternet.
Allows consumers to use applications withoutinstallation
Only Pay for What Yo u Us e
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HOW VIRTUALIZATION IS RELATED TO CLOUDCOMPUTING
Cloud Computing is a collection of Virtualization Technique
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HOW CLOUDS ARE FORMED BY USING VIRTUALIZATION TECHNIQUES
Key attributes :Sharing of infrastructure
Scalability and elasticity
AgilityLocal independence
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T YPES OF CLOUD
Private
Virtual Private Cloud
Public(Example- Amazon Web Services is the largest public cloudprovider).
Cloud computing Application Component includes
FacebookMicrosoft OnlineGoogle Apps
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THE BENEFITS
Access your data at all times not just while in the office
A physical storage center is no longer needed
Most have a pay structure that only calls for payment onlywhen used
Easily scalable so companies can add or subtract storagebased on their own needs
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THE NEGATIVES
If you are going to move all of your information to data centers situated outsideyour company, then security should be of utmost importance.
If your cloud host disappears, where does
your information go?
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VIRTUALIZATION UNLOCKS CLOUD COMPUTING
There are at least five things that
virtualization does to unlock the door tocloud computing :
Enables economies of scaleDecouples users from implementationSpeed, flexibility, agilityBreaks software pricing and licensingEnables, motivates chargeback
http://blogs.gartner.com/thomas_bittman/2009/08/11/virtualization-unlocks-cloud-computing/http://blogs.gartner.com/thomas_bittman/2009/08/11/virtualization-unlocks-cloud-computing/7/27/2019 Virtual Unlocks Cloud
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Finished.