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Cloud

COMPUTING

IntroductionService ModelsDeployment Models

Key Technology- VirtualizationAdvantages of Cloud ComputingRole of Open Source

DisadvantagesFuture workConclusion

Cloud Applications

Contents

Cloud computing – tomorrow…

Evolution of cloud computing

Evolution of Computing

Cloud computing is a model for enabling convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.

Working definition of Cloud Computing

“PAY AS YOU GO”

Cloud Computing

Cloud Software as a Service (SaaS)---Use provider’s applications over a network

Cloud Platform as a Service (PaaS)---Deploy customer-created applications to a cloud

Cloud Infrastructure as a Service (IaaS)---Rent processing, storage, network capacity, and other fundamental computing resources

Cloud Service Models

Private cloud - enterprise owned or leased

Community cloud- shared infrastructure for specific community

Public cloud-sold to the public, mega-scale infrastructure

Hybrid cloud-composition of two or more clouds

Cloud Deployment Model

Hardware

Operating System

App App App

Traditional Stack

Hardware

OS

App App App

Hypervisor

OS OS

Virtualized Stack

Key technology- Virtualization

Virtualization

Abstract computing platform

Hypervisorintercepts and emulates instructions from VMs, and allows multiple OS to run on a host computer

Statistical study of Cloud Computing

Advantages of Cloud Computing

Cloud Computing

Reduced software Costs

UnlimitedStorage

capacity

DeviceIndependence

Instant softwareupdates

Increased datareliability

24 /7 support

Flexible

Pricing

DocumentFormat

Compatibility

Open source software plays an important role in cloud computing by allowing it basic software elements — virtual machine images and appliances — to be created from easily accessible components

Role of Open Source

Open source is shaping cloud - by providing the raw material upon which many private and public clouds are built.

Cloud Vendors

Google Docs: Online word processing,spreadsheet, presentations and collaboration software.Picasa: photo sharing siteYouTube: Online storage of videos.

Webex: Online meetings. Gmail: Online email account

Gliffy: Online diagram drawing. Yahoo! Calendar: An online calendar.Linkedln: Social networking for business.The business answer to MySpace and FaceBook.Picnik: Online photo editing. Blogger: A service for online publishing blogs.

Are you in Cloud?

Google: search engine

Flickr: photo sharing site

And many more…..

Disadvantages

Not secureRequires constant

internetconnection

Data can be

lost

Data

Speed

Limited

Features

Lock in

With Saas, Iaas, Paas the model “Everything as a service” is on the verge of development.

Future Work

At the moment, this is not clear which kind of measures, tools are taken to guarantee the privacy of data

There is still hindrance in the path to achieve cloud computing due to non availability of tools

There should be scenario for automatic adjustment of bandwidth as traffic increases

Distributed Hybrid Cloud Architecture

Benefits of Highly Professional Computing made available to all sizes of Business.

No upfront investment – Encourages innovation.

Key Opportunity for application and infrastructure vendors.

Environmental Friendly.

Conclusion

Innovators are free to focus on the innovation rather than the logistics of finding and managing resources that enable the innovation.

Cloud Computing – Tomorrow…

All IT companies throwing resources into cloudcomputing .It will affect all levels of computational system, from casual user to software developers, IT managers, even hardware manufacturer.

It seems like much of world’s digital information willbe living in clouds

Technology will evolve from services into fullfledged operating systems

Hmm… Cloud computing

seems less cloudy now