Cloud Computing Talal Alsubaie DBA Saudi FDA. You Have a System (Website)
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Transcript of Cloud Computing Talal Alsubaie DBA Saudi FDA. You Have a System (Website)
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Cloud ComputingTalal AlsubaieDBASaudi FDA
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You Have a System (Website)
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People Likes it
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Performance Goes Down
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Solutions
ADD MORE SERVERS
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•Software as a Service (SaaS)•Virtualization
Concepts
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Software as a Service (SaaS)
Someone else owns the application
Pay fixed subscription fee
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Software as a Service (SaaS)
NO SERVER MANAGEMENTDO NOT WORRY ABOUT SECURITYNO PROGRAMMING
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Software as a Service (SaaS)
ONE SIZE APPLICATIONAPPLICATION OUTSIDE FIREWALL
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Software as a Service (SaaS)
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HaaS & PaaS•Hardware As A Service
•Platform As A Service
•Both runs on the same concept as SaaS.
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Virtualization
APPLICATIONS AND INFRASTRUCTUREARE INDEPENDENT
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Virtualization
Hardware
Operating System
App App App
Traditional Stack
Hardware
OS
App App App
Hypervisor
OS OS
Virtualized Stack
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Virtualization•Can run any ware.
▫In your data center.▫Or in the applications provider center.
App 1OS
App 2 App 1OS
App 2
OS OS
OR in the
Cloud
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Cloud Provider
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Cloud Computing
•It is a style of computing in which dynamically scalable and often virtualized resources are provided as a service over the Internet
•Does not worry about the backend
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Cloud ComputingTraditional Stack
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Traditional Data Center
Buy the Car
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SaaS
Leasing a Car
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Cloud
Pay as you GO
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Traditional IT Cost Model
Growth Scenario
Users / IT Costs
Time
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Cloud Computing Cost ModelUsers / IT Costs
Time
IT Costs are Variable
Growth Scenario
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Traditional IT Cost ModelUsers / IT Costs
Time
IT Costs are Semi-Fixed
Recession Scenario
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Cloud Computing Cost ModelUsers / IT Costs
TimeRecession Scenario
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Cloud “Applications”
•Examples: Gmail, Yahoo! Mail
•Advantages: Free, Easy, Consumer Adoption
•Disadvantages: Limited functionality, no control or access to underlying technology
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Cloud “Platforms”• “Examples: Google App Engine, Heroku, Mosso,
Engine Yard, Joyent or Force.com (SalesForce Dev Platform)
• Advantages: Good for developers, more control than “Application” Clouds
• Disadvantages: Restricted to what is available, other dependencies
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Cloud “Infrastructure”• Provide “Compute” and “Storage” clouds• Virtualization layers (hardware/software)• Examples: Amazon EC2, GoGrid, Amazon S3,
Nirvanix, Linode• Advantages: Full control of environments and
infrastructure• Disadvantages: limited competition
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Cloud Advantages•Lower computer costs
•Improved performance
•Unlimited storage capacity
•Device independence
•Availability
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Issues…
•Requires a constant Internet connection•Security & Privacy•Legal Issues•Political Issues•Related Bandwidth Cost•Transparency
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But …
•Cloud Computing is a very active research area.
•Many large companies are behind the technology, and investing
BILLIONS OF DOLLARS
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Who is behind Cloud Computing
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Google Trends…