Cloud ComputingTalal AlsubaieDBASaudi FDA

You Have a System (Website)

People Likes it

Performance Goes Down

Solutions

ADD MORE SERVERS

•Software as a Service (SaaS)•Virtualization

Concepts

Software as a Service (SaaS)

Someone else owns the application

Pay fixed subscription fee

Software as a Service (SaaS)

NO SERVER MANAGEMENTDO NOT WORRY ABOUT SECURITYNO PROGRAMMING

Software as a Service (SaaS)

ONE SIZE APPLICATIONAPPLICATION OUTSIDE FIREWALL

Software as a Service (SaaS)

HaaS & PaaS•Hardware As A Service

•Platform As A Service

•Both runs on the same concept as SaaS.

Virtualization

APPLICATIONS AND INFRASTRUCTURE

ARE INDEPENDENT

Virtualization

Hardware

Operating System

App App App

Traditional Stack

Hardware

OS

App App App

Hypervisor

OS OS

Virtualized Stack

Virtualization•Can run any ware.

▫In your data center.▫Or in the applications provider center.

App 1

OS

App 2 App 1

OS

App 2

OS OS

OR in the

Cloud

Cloud Provider

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

Cloud ComputingTraditional Stack

Traditional Data Center

Buy the Car

SaaS

Leasing a Car

Cloud

Pay as you GO

Traditional IT Cost Model

Growth Scenario

Users / IT Costs

Time

Cloud Computing Cost Model

Users / IT Costs

Time

IT Costs are Variable

Growth Scenario

Traditional IT Cost Model

Users / IT Costs

Time

IT Costs are Semi-Fixed

Recession Scenario

Cloud Computing Cost Model

Users / IT Costs

TimeRecession Scenario

Cloud “Applications”

•Examples: Gmail, Yahoo! Mail

•Advantages: Free, Easy, Consumer Adoption

•Disadvantages: Limited functionality, no control or access to underlying technology

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

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

Cloud Advantages

•Lower computer costs

•Improved performance

•Unlimited storage capacity

•Device independence

•Availability

Issues…

•Requires a constant Internet connection•Security & Privacy•Legal Issues•Political Issues•Related Bandwidth Cost•Transparency

But …

•Cloud Computing is a very active research area.

•Many large companies are behind the technology, and investing

BILLIONS OF DOLLARS

Who is behind Cloud Computing

Google Trends…

THANKS ALLOT

Talal A. AlsubaieDBASaudi FDAt@talals.net