Cloudconfused ankit
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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
make…
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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
tile
flooring
Roof floor plan
landscaping
windows
lighting
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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
downsize
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But…
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
Free
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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…
Security
Privacy
Reliability
High Availability
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Building Enterprise
Software
Stone Wall Fire-proof Moat
Army
Death Hole
is like….
Building
Medieval
Castle
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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
Communication
Transparency
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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Layoffs
2008-09
Economy is upside down
Excess Capacity
Bankruptcy
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Can we bridge the gap?
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Requires
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
Hig
h T
raff
ic?
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It can even load balance your server traffic
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Expect your Cloud
Network
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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Wait,
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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Only a handful of major players
can build
this massive infrastructure
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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
Encryption
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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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Typical Scenarios
You
(Business, Individual)
Software/Service
Providers Cloud/Infrastructure
Provider
You may also build software
directly on the provider’s platform and
pay them directly
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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
Before
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In some cases,
you could redirect your data to the cloud
After
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However, to take advantage fully,
migrate all or create new apps on the cloud
Employees
Customers
Suppliers
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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
NO
So will the mobile applications
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Ankit Kumar