CLOUD COMPUTINGWhat is Cloud Computing?ModelsAdvantagesDisadvantages Microsoft AzurAmazon S3

What is Cloud Computing?• Network Based computing over the Internet• A collection of networked hardware, s/w and Internet infrastructure (called a platform).• Hides complexity from users and gives simple graphical interface or API

Characteristics of Cloud Data:Remotely hostedUbiquitousCommodified

SERVICES

APPLICATIONS

SERVERS

STORAGE (DATABASE)

COMPUTER NETWORK

Models:

Application Service(SaaS)

Application Platform

Server Platform

Storage Platform

MS Live/Exchange LabsIBM Google Apps

Google App EngineFacebookAWS

Slice HostGoGrid

Amazon S3DellApple

Different Cloud Computing Layers:

Disadvantages:More dependence on service providerRisk of information leakagesAvailability depends on supplier’s factorUsers cannot be aware of networkVendor lock-inMight be slow

Windows Azur :Enterprise-level on-demand capacity builderFabric of cycles and storage available on-request for a costYou have to use Azure API to work with the infrastructure offered by MicrosoftSignificant features: web role, worker role , blob storage, table and drive-storage

993 GB= Rs. 7,123.98/-1 GB=Rs. 7.2/-

Microsoft Azur

Amazon Simple Storage Service (S3):Unlimited Storage.

Pay for what you use:$0.20 per GB of data transferred,$0.15 per GB for storage used,Second Life Update:

1TBytes, 40,000 downloads in 24 hours - $200

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