I’m Cloud Confused Demystifying Cloud Computing

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Page 1: Cloudconfused ankit

I’m Cloud Confused

Demystifying Cloud Computing

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What the say:

“Biggest Paradigm Shift in 20 years”

“Game Changers”

“Tremendous Cost Cutting”

“Just On” “Pay As You Go”

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Describe The Cloud To Me

21 experts are defining cloud computing http://bit.ly/C6jIm

The Cloud

*Picture taken under Creative Common license

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Who Cares?

What is it for me?

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First, What the heck is Cloud Computing

First, what the heck is

Cloud Computing? …in simple, plain English please!

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Let’s use a simple analogy

Say you just moved to

a city, and you’re

looking for

a place to live

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You can either

Build a house or

Rent an apartment

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If you build a house, there are a few

important decisions you have to


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How big is the house?

are you planning to grow a large family?

Remodel, addition typically cost a lot

more once the house is built

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But, you get a chance to customize it



Roof floor plan




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Once the house is built,

you’re responsible for maintenance

Hire Landscaper Electrician Plumber

Pay property tax

Electricity Water

Gutter Cleaning Heating and Cooling House Keeping

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How about renting?

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Consider a builder in your city builds

a massive number of apartment units

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A unit can easily be converted into a 2,3,4 or more units

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You make a fewer,

simpler decisions

You can start with one

unit and grow later, or


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You do not have

a lot of options to

customize your unit

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However, builders provide you with

very high quality infrastructure

high speed Internet

high capacity electricity

triple pane windows

green materials

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No need to worry about maintenance cost

No need to Hire landscapers,

electricians, plumbers

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Just pay your rent and utilities

Pay as You Go

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Let’s translate to

Cloud Computing?

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As an end-consumer, believe it or not

you’ve been using Cloud for long times

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Yes, most of them are


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In return, you’re willing to give away

your information

for ads and other purposes

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But you’ve been enjoying

High Reliability Service

Unlimited Storage

Connecting, Sharing

(ok, ok, most of them are)

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OK, Now tell that to the business owner

Give up your data, then

you can use this infrastructure for free

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This is how their CEO would feel

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My Business Needs…




High Availability

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Building Enterprise


Stone Wall Fire-proof Moat


Death Hole

is like….




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Let’s Hire an Army of IT Engineers

Software Upgrade Support

Backup/Restore Service Pack

Development Network issues

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Let’s Build

Huge Data Center

Capacity Planning

Disaster Plan

Cooling Management

Server Crashes

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In the mean time,…

Many things have changed

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The enterprise world we live in

2010 and beyond

Global Direct, Open Customers



Work Remotely

Digital Life Convergence

(e.g. Social Media)

(Work and Personal lines are blurring)

(Customers, Resources, IPs are acquired everywhere)

(Mobility Trend)

(Blogs, Social Computing) Brief Collaboration (Assemble the best, Disassemble upon completion)

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Economy is upside down

Excess Capacity


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Can we bridge the gap?

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a New Way

of Thinking

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Cloud Computing

is not

answer the

for all

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But it could simplify our lives….

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Leave it the experts who have a lot of money to spend to build

giant datacenters across the globe

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Your data is replicated

3 or 4 times in their data center

High Availability

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Adding “servers” is a click away.

Running in just minutes, not days


h T



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It can even load balance your server traffic

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Expect your Cloud


is always up

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Yes, you can even pick

where your data

and “servers” reside

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Business Contraction?

Just reduce your

computing power, storage

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What is the catch?

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Cloud Computing

is relatively new technology

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Growing Pains

We all learn from it

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Not many software written yet to take

advantage of cloud infrastructure

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Sensitive Data in the Cloud?

are there yet?

Data at Rest

Data in Motion


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Yes, you’re loosing some controls

physical security some configurations

only subset of APIs

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Let’s clear common confusions about Cloud Computing

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Who is paying whom?

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Do I have to start over?

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In some cases,

you could redirect your data to the cloud

Migrate Data to the Cloud


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In some cases,

you could redirect your data to the cloud


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However, to take advantage fully,

migrate all or create new apps on the cloud




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Is this just Hosting 2.0?

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No, they have different architectures

and business model

Cloud Players Hosting Players

Only few can afford billions dollar

investment on data centers

Hundreds of them around

the world

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Hosting Players

Often yearly

Your contracts

Cloud Players

Pay As You Go

Pay only what you use

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Hosting Players

Reliability, High Availability,

Capacity Elasticity

Cloud Players

Built-in Redundancy

Virtually unlimited

storage, computing power

You have to manage

reliability, fail over yourself

Bring your own or rent

servers to increase capacity

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The end of PC ?

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Most cloud applications that will be built are

accessible from PC. Applications can be a browser base, application

running on PC accessing data and services on the cloud


So will the mobile applications

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Ankit Kumar