cloud computing isha
TRANSCRIPT
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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