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1. Cloud Computing
Based on a presentation by
Farhad Javidi at Course Technology
Conference 2009

2. The Cloud is the New Dot Com

7. What is Cloud Computing?
“The interesting thing about cloud
computing is that we’ve redefined
cloud computing to include
everything that we already do.
[…] The computer industry is the
only industry that is more fashion-
driven than women’s fashion.
Maybe I’m an idiot, but I have no
idea what anyone is talking
about. What is it? It’s complete
gibberish. It’s insane. When is
this idiocy going to stop?
Larry Ellison
during Oracle’s Analyst Day

8. • “
• Cloud computing is simply a buzzword used
to repackage grid computing and utility
computing, both of which have existed for
decades.”
whatis.com
definition of Cloud Computing

9. (Good Luck) Defining Cloud Computing
• Software-as-a-Service
– “My customer resource management
(CRM) system is out on the Internet!”
• Grids vs. Clouds
– Shared Virtual Resources
– Batch Jobs vs. Online Applications
– Different Approaches to State
Management
• Network Diagrams
– A service is “on a cloud somewhere”
• Virtualization Platforms & APIs
– Hardware can be manipulated with
software

10. Grid Cloud
Underlying concept Utility Computing Utility Computing
Main benefit Solve computationally
complex problems
Provide a scalable
standard environment for
network-centric
application development,
testing and deployment
Resource distribution /
allocation
Negotiate and manage
resource sharing;
schedulers
Simple user <-> provider
model; pay-per-use
Domains Multiple domains Single domain
Character / history Non-commercial, publicly
funded
Commercial
Grid vs. Cloud
10

11. 1980s 1990s Today 2009+1970s
5th Generation Of Computing

12. A Brief History

13. Amazon EC2
(August 2006)
Google App Engine
(April 2008)
Microsoft Azure
(Oct 2008)
Facebook Platform
(May 2007)
Amazon S3
(March 2006)
Salesforce
AppExchange
(March 2006)

14. Utility Computing
Platform as a
Service (PaaS)
Cloud-based User
Applications

15. Cloud Platforms
• Google Gears
• Amazon Web Services
• Salesforce (app Exchange)
• Facebook
• Adobe Air
• Microsoft Azure

16. Cloud Benefits
• Cloud = Less Investment
(not own data center, hardware; use outside
provider of servers, storage, and bandwidth)
• Cloud = Scale
(tens of thousands of server computers)
• Cloud = Flexible and Efficiency

17. Cloud Ecosystem
• End-user applications, Software-as-a-Service (SaaS)
• Platform-as-a-Service (PaaS)
• Infrastructure-as-a-Service (IaaS)
Google App Engine
Platform as a Service (PaaS)
End-User Applications
Salesforce AppExchange
Facebook Platform
Facebook Apps
Live Mesh
AppExchange Apps
OpenSocial Apps
Amazon Web Services
Rackspace 3tera
Joyent
Infrastructure as a Service (IaaS)
Brokers, Tools and Frameworks
End-User Applications
flexiscale
NASDAQ Market Replay
Jungle Disk Powerset
MossocohesiveFT
RightScale
MLB
zimoryenomaly
Aptana cloud

19.  From On-Premise to Cloud Platforms

20.  From On-Premise to Cloud Platforms

21. Application runs
on-premises
Buy my own
hardware, and
manage my own
data center
Application runs
at a hoster
Co-location
or
Managed
servers
Application
runs using
cloud services
“cloud fabric”
(elastic,
infini-scale)
 From On-Premise to Cloud Platforms

22. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy

23. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
Bildvs.BuyBuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Maximum
Economy of Scale
All acceptable options (trade off)
Maximum Control

24. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
Molecule Research
HR System
Email
Issue Tracking
ERP
“Too costly to run this myself,
but I’ve made too many
customizations”

25. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
Molecule Research
HR System
Email
Issue Tracking
ERP
“CRM and Email are commodity
services – They have no
customizations, and it’s cheaper for
someone else to run these”

26. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
Molecule Research
HR System
ERP
Email
Issue Tracking
“I can’t afford to maintain
this old HR application
written in VB – it’s driving
me mad!”
“…but due to privacy issues, I
prefer keeping my HR data
on-premises”

27. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
Molecule Research
HR System
ERP
Email
Issue Tracking
“I wish I had access to
cheaper compute and
storage when I need it”

28. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
HR System
ERP
Email
Issue Tracking
Molecule Research

29. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
HR System
ERP
Email
Issue Tracking
Molecule Research
“THIS is where I want to
spend my IT resources – I’m
going to double down on this
application!”

30. “Packaged”
Application
An application that I buy
“off the shelf” and run
myself
Self Hosted
“Home Built”
An application that I
develop and run myself
BuildBuy
Hosted
“Home Built”
An application that I
develop myself, but run
at a hoster
Hosted
“Packaged”
An application that I buy
“off the shelf” and then
run at a hoster
Cloud Platform
An application that I
develop myself, but
run in the cloud
“Software as a
Service”
A hosted pplication
that I buy from a
vendor
On premises vs. CloudOn premises Cloud
Bildvs.Buy
Clinical Trial
HR System
ERP
Email
Issue Tracking
Molecule Research

31. Apps in the Cloud Drive
Internet Usage
Demo
Built on Google App Engine
What are the issues?

32. Cool Cloud Apps
• G.ho.st
• SumoPaint.com
• Google Docs
• Zoho Writer
• Yola