The document provides an overview of cloud computing fundamentals. It defines cloud computing, describes its history and evolution. It outlines the 5 essential cloud characteristics, different cloud layers including Software as a Service (SaaS), Platform as a Service (PaaS), and Infrastructure as a Service (IaaS). The document also discusses different cloud deployment models such as public, private and hybrid clouds. It lists the top 10 cloud computing providers in 2010 and 2011. Finally, it includes quotes from CEOs of Oracle and Salesforce about their views on cloud computing.

1. Cloud Computing Group
September 6, 2011
Cloud Computing - Fundamentals
Suman Kumar Singh
© 2011 IBM Corporation

2. Roadmap
 Cloud Rush
 Cloud Computing Overview
• Cloud Computing defined
 The Cloud
• How it came to be
 Cloud Computing history
 5 Essential Cloud Characteristics
 Cloud Computing Layers
 Cloud Computing Deployment Models
 Cloud Computing Majors
• Top 10 Cloud Computing Providers
 CEO Quotes
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3. Cloud Rush
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4. Cloud Computing
Overview
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5. Cloud Computing defined
 Cloud computing is a pay-per-use model
for enabling available, convenient and on-
demand network access to a shared pool
of configurable computing resources (e.g.,
networks, servers, storage, applications
and services) that can be rapidly
provisioned and released with minimal
management effort or service provider
interaction.“ ~ The National Institute of
Standards and Technology (NIST)
 Cloud Computing is an internet-based
computing, whereby shared resources,
software, and information are provided to
computers and other devices on demand,
like the electricity grid. ~ Wikipedia
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6. The Cloud – How it came to be
Vendor
IaaS
LAN
WAN
Cloud
Vendor Office 2
Office 1 SaaS Mumbai City
Bangalore City
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7. Cloud Computing History
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8. Cloud Computing Timeline
WAN,
Application &
Infrastructure
Management
Utility based
LAN, cloud
Cloud solutions
Application &
Infrastructure Connected
Management Data
Management
1990s 2000s 2010s
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9. 5 Essential Cloud Computing Characteristics
 On-demand self service
 Ubiquitous network access (Internet-based)
 Resource pooling (achieved by multi-tenant application
architecture)
 Rapid elasticity/ scalability
 Measured service with pay per use
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10. Cloud Computing Layers
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11. Cloud Computing Layers: Comparison
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12. Software as a Service (SaaS)
• Most widely used Cloud Computing approach till date
• Delivers a single application through a browser to thousands of
customers using multitenant architecture
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13. Common examples of the SaaS model
CMS Invoicing Collaboration
Email tools
IM
Photo sharing
Teleconferencing
&
management
CRM ERP
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14. Platform as a Service (PaaS)
• Delivers computing platform and solution stack as a service
• Why PaaS?
- Cost savings and faster time to market
- Savings in testing and QA efforts
- Delivers infrastructure needed to run application over the Internet
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15. Common examples of the PaaS model
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16. Infrastructure as a Service (IaaS)
• The backbone of the entire cloud computing concept
• Delivers complete infrastructure consisting of physical assets
servers, storage disks, network devices – as a service
• Control of infrastructure
•NO – There is no control over underlying infrastructure
•YES – There is control over operating systems, storage
and deployment applications
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17. Common examples of IaaS model
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18. Cloud Deployment Models
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19. Cloud Computing Deployment Models
Public Private
• Service provider Cloud Services • Privately owned
owned and managed and managed.
• Access by Cloud Computing • Access limited to
Model
Subscription client and its
partner network.
• Delivers select set of
standardized business • Drives efficiency,
process, application standardization and
and/or infrastructure best practices while
Hybrid
services on a flexible retaining greater
price per use basis • Access to client,
customization and
partner network, and control
third party resources
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20. Cloud Computing Majors
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21. Top 10 Cloud Computing Providers
Year 2011 Year 2010
1. Amazon 1. Amazon
2. Verizon 2. Rackspace
3. IBM 3. Salesforce.com
4. Salesforce.com 4. Google Apps
5. CSC 5. Microsoft Azure
6. Rackspace 6. Joyent
7. Google Apps 7. GoGrid
8. Bluelock 8. Terremark
9. Microsoft Azure 9. Savvis
10. Joyent 10.Verizon
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22. Cloud Computing Skeptics
“The interesting thing about cloud
computing is that we've redefined
cloud computing to include everything
that we already do. I can't think of
anything that isn't cloud computing
with all of these announcements. 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? We'll make cloud
computing announcements. I'm not
going to fight this thing. But I don't
understand what we would do
differently in the light of cloud”. Larry Ellison
CEO, Oracle Corporation (2008)
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23. Cloud Computing Champions
“Our industry is going through quite “The cloud services companies of all
a wave of innovation and it's being sizes…The cloud is for everyone.
powered by a phenomenon which The cloud is a democracy”.
is referred to as the cloud”.
Marc Benioff
Steve Ballmer CEO, Salesforce.com (2010)
CEO, Microsoft (2010)
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24. Thank
You
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