cloud computing isha

7/30/2019 Cloud Computing Isha

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CLOUD COMPUTING

Presented By (gr. 1)

Avadhesh kr. Gupta

Ganesh Paswan

Isha Saha

Ranjeet

Ummed Singh

Vaibhav Jain


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Cloud Computing: Hot

Air or Killer App?

Cloud computing is the deliveryof computing as a service rather

than a product , whereby shared

resources, software, and

information are provided to

computers and other devices as

a utility (like the electricity grid) over

a network (typically the Internet).

It implies the supply of

applications to end users, rather

than just computer cy-cles.

Cloud-based computing is a type

of IT service usually delivered over

the Internet, but the defining

characteristic is scale the

ability to service millions ofusers,


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Grid computing is a termreferring to the combination of

computer resources from multiple

administrative domains to reach a

common goal.

Grid computing implies the

provision of computing resources

as a utility that can be turned onor off as required. Computing on

tap, so to speak. You pay for what

you consume, without worrying

about how where it comes from or

how much is available.


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Whether cloud computing is a new promising

technology or just a hype.

Cloud computing is a technology previously present

in the form of application service provider (ASP)

model that was in vogue briefly 10-12 years ago.

ASPs, were supposed to manage data centres and usetheir expertise to run and maintain all sorts of

applications for customers, who accessed these

applications down the wire. New applications were

written or existing applications were ASP-enabled,

and these were either shared by multiple customers or

hosted on a separate server for each customer.


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ASPs and The Cloud

These ASPs could not manage millions of

customers and the only difference was the

scale.

At that point of time firms did not want there

confidential documents and spread sheets

stored off site.

They believed in using office like apps on

there own machines.


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Continued.

The ASP had all the vendors as startups

however today the cloud has all the big

companies associated with it which makes it a

hype altogether.


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Why would somebody use the cloud and

not the personal applications ?

The model promises a much simpler way of accessing

applications, with a very short provisioning time, a

predictable per-user, per-month fee, and lower overall

costs due to economies of scale and the harnessing ofexpertise provided by specialists.

More economy of scale.

Old knee-jerk worries about security and allowing

third parties to run applications are less prevalent

these days.


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Or

To quote it we can say in words of Yossarian

from Joseph Hellers classic novel Catch-22,

if everyone else is getting their apps from the

cloud, youd certainly be a damned fool to get

yours any other way ...


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The Cloud: Saving Grace

or Empty Thunder?

Companies are looking on to the cloud for relief ingroundswell of economic pressures.

cloud computing can cut costs, speed

implementations, and scale quickly. It significantly lowers up-front capital expenses and

allows companies to only pay for what they actuallyuse. Plus, the cloud model dramatically lowers

operating expenses over time by increasingstandardization and automation and deliveringapplications and services more efficiently.


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Cloud and the worries at top level

The big thrill of the cloud is not having to care

who, where, or how something is being done

Unfortunately, that thrill does not extend to the

CIO, whose job it is to ensure that its done

properly.

Fear over security and loss of control of data

and systems is hindering adoption.


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What finally?

At the end of the day, the decision to move to

the cloud, stay firmly on the ground, or move

to hybrids somewhere in between, will be

made based on a companys specific needs.

For now, its just another set of tools to use or

not.


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INTERNALV/S

EXTERNAL CLOUD


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CLOUD COMPUTING HAS SOMEADVANTAGES ANDDISADVANTAGES

FOR SOME ORGANISATIONS THERES ONEREAL SHOW STOPPER WHEN IT COMES TOGETTING THE BENEFITS OF CLOUDCOMPUTING:HETEROGENEITY...

MANY CLOUD SERVICES OFFERED ALIMITED CHOICE OF OPERATINGSYSTEM.


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TYPES OF CLOUD.

INTERNAL CLOUD

A CLOUD ENVIRONMENT

IN HOUSE,SO CALLED

INTERNAL CLOUD

IT HELPS IN POOLING THE

COMPUTING RESOURCES

IN THE CLOUD AND

APPLYING SERVERRESOURCES

DYNAMICALLY ON THE FLY

IN RESPONSE TO THE

DEMAND

EXTERNAL CLOUD

ALSO KNOWN AS PUBLIC

CLOUD

SERVICE IS OFFERED BY

THE OUTSIDE VENDOR

RELATED TO THE

DEMANDS AND THEREQUIREMENTS OF THE

CUSTOMERS


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WHICH TO CHOOSE???

INTERNAL CLOUD

NO FEAR OFSECURITY AND LOSSOF CONTROL OF DATA

CAPITAL AND

OPERATINGEXPENSES AREINCREASED

SERVER CAN BE SHUTDOWN IN NON PEAKTIMES,HELPS IN

SAVING THE POWERBILLS

EXTERNAL CLOUD

FEAR OF SECURITYAND LOSS OF DATA TOA THIRD PARTY..

EXPENSES ARE BEAR

BY THE VENDOR ..

HETEROGENOUSORGANISATIONS AREUSING THE SERVERSIMULTANEOUSLY,MORE ELECTRICITYCONSUMPTION


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Secure cloud?

A scary thought? For many CIOs, yes. They arepanicking about this.

Data security in the cloud is no different than data

security at a remote data centre. The big cloud playersAmazon, Google, Sun

Microsystems, Salesforce.comknow more than alittle about maintaining online security and,

considered in that context, worries about outsidersknocking down the security walls and having theirway with your data indeed seem over-wrought.


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The security with the log-on

log-ons are too primitive. The worry here is

that when barebones log-ons are in use, old-

fashioned social engineering techniques will

let hackers learn employee log-ons and, watch

out, data leakage will be at flood stage.


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Answer to the log-ons

the solution is simple: enterprises should only

permit data to migrate to the cloud where two-

factor, strong authentication is in use and, right

there, hackers probably are kept at bay.


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How durable is the cloud?

The big worry, particularly in todays unstableeconomy, is how durable is the cloud provider.

Its not all or nothing. It does not have to be.

Put only the data you are comfortable with onthe cloud. That is what most companies seemto be doing. We are still in an era ofexperimentation. Take it in little steps butstart taking some steps, thats the smart way toembrace the cloud.


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THANK YOU

cloud computing isha

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