Cloud Computing

Mar 17, 2013Download as PPT, PDF1 like1,841 views

This document discusses cloud computing and compares it to traditional hosting. It defines cloud computing as a service accessed over the internet rather than a product. The key advantages of cloud computing are agility, lower costs, device and location independence, improved security, and easier maintenance and reliability. The document outlines the major service models of cloud computing: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). It also notes some risks of cloud computing such as long resolution times, terms and conditions issues, dependence on providers, and data migration challenges.

Topic: CLOUD COMPUTING

Group Members:
Sabeeh Ahmed
Syed Mohsin

Semester: 5th

Why Cloud Computing is Called
CLOUD COMPUTING
• Name shows something very big.
• Globally same services (As clouds)
• Virtualization
• It's hard to measure a cloud (both)
• clouds are opaque and you can't see what
goes on inside them.
• Elastic

What is Traditional Hosting
Shared hosting
Traditional Hosting

Dedicated Hosting

 Shared hosting
 Is usually for small and medium sized business.
 Client can pay set amount of space on a single
server.
 server's resources are shared by a number of
other websites

Dedicated hosting
 a company pays for the complete resources
of one or more servers from a service
provider.

 he client has dedicated bandwidth, CPU, RAM,
and drive space.

 has full control over the servers resources.

Cloud Computing
• It is a service rather than a product.
• Can access cloud based applications through
a web browser or a light weight desktop
or mobile app
• No need to install software and high
configured machinery.
• All you need is INTERNET having good speed.
• Service is fully managed by provider.
• A simple example of cloud computing is
Yahoo, Gmail , Hotmail etc

Public Cloud
• Computing infrastructure is hosted at the
vendor’s premises.
• customer has no visibility over the location of
the cloud computing infrastructure.
• computing infrastructure is shared between
organizations.

Private Cloud
• Computing architecture is dedicated to the
customer.
• not shared with other organizations.
• They are expensive
• secure than Public Clouds.
• May hosted externally or internally

Hybrid Cloud
• The combination is known as Hybrid Cloud.
• Organizations host some critical, secure
applications in private clouds.
• not so critical applications are hosted in the
public cloud.
• Combine to form hybrid cloud

Features
 Agility. (efficiently adapting to changes)
 Cost. (claimed to be reduced)
 Device and location independence.
 Security. (improve due to centralization of data)

 Maintenance. (is easier)
 Reliability. (is improved)

IaaS (Infrastructure as a service)
• most basic cloud service model.
• organization used the equipment to support operations.
• The service provider owns the equipments.
• Responsible for
Housing
Running
Maintaining
• sometimes referred to as Hardware as a Service (HaaS).

• EC2, Amazon S3, Rackspace Cloud Servers are some of
the leading vendors.

SaaS (Software as a service)
• Providers install and operate the software in cloud
• Can access through cloud clients.
• Global accessibility
• No hectic install application on your PC.
• What makes a cloud application different from other
applications is its elasticity.
• i.e. cloning tasks onto multiple virtual machines.
• Gmail and Hotmail are prime examples of SaaS.

PaaS (Platform as a service)
• providers deliver computing platform.
• including
operating system,
programming language execution environment
database.
web server.
• No need to buy and manage hardware and software
• Google App Engine, Microsoft Azure and Saleforce.com are
some of the leading vendors.

Major Difference between Traditional
Hosting and cloud computing

• Cloud Computing is sold on demand
• The service is managed by the provider
• User can determine the amount of service
they take
• Users can log on to the network from any
computer in the world

Risks of Cloud Computing

• take a long time to resolve.
• Terms and condition issue
• You are dependent on cloud computing
provider.
• Data migration issues when changing cloud
provider
• What happens if your cloud provider goes out
of business?

Cloud Failures
• Amazon's failures: (April 22, 2011)
Quora.com, Reddit.com, GroupMe.com and
Scvngr.com unable to access.

• Microsoft online services hit by major failure:
(September 9, 2011)
Hotmail, Office 365 and Skydrive

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Cloud Computing

1. Topic: CLOUD COMPUTING Group Members: Sabeeh Ahmed Syed Mohsin Semester: 5th

2. Why Cloud Computing is Called CLOUD COMPUTING • Name shows something very big. • Globally same services (As clouds) • Virtualization • It's hard to measure a cloud (both) • clouds are opaque and you can't see what goes on inside them. • Elastic

3. Traditional Hosting vs Cloud Computing

4. What is Traditional Hosting Shared hosting Traditional Hosting Dedicated Hosting  Shared hosting  Is usually for small and medium sized business.  Client can pay set amount of space on a single server.  server's resources are shared by a number of other websites

5. Dedicated hosting  a company pays for the complete resources of one or more servers from a service provider.  he client has dedicated bandwidth, CPU, RAM, and drive space.  has full control over the servers resources.

6. Cloud Computing • It is a service rather than a product. • Can access cloud based applications through a web browser or a light weight desktop or mobile app • No need to install software and high configured machinery. • All you need is INTERNET having good speed. • Service is fully managed by provider. • A simple example of cloud computing is Yahoo, Gmail , Hotmail etc

7. Kinds Of Cloud

8. Public Cloud • Computing infrastructure is hosted at the vendor’s premises. • customer has no visibility over the location of the cloud computing infrastructure. • computing infrastructure is shared between organizations.

9. Private Cloud • Computing architecture is dedicated to the customer. • not shared with other organizations. • They are expensive • secure than Public Clouds. • May hosted externally or internally

10. Hybrid Cloud • The combination is known as Hybrid Cloud. • Organizations host some critical, secure applications in private clouds. • not so critical applications are hosted in the public cloud. • Combine to form hybrid cloud

11. Features  Agility. (efficiently adapting to changes)  Cost. (claimed to be reduced)  Device and location independence.  Security. (improve due to centralization of data)  Maintenance. (is easier)  Reliability. (is improved)

12. Service Models

13. IaaS (Infrastructure as a service) • most basic cloud service model. • organization used the equipment to support operations. • The service provider owns the equipments. • Responsible for Housing Running Maintaining • sometimes referred to as Hardware as a Service (HaaS). • EC2, Amazon S3, Rackspace Cloud Servers are some of the leading vendors.

14. SaaS (Software as a service) • Providers install and operate the software in cloud • Can access through cloud clients. • Global accessibility • No hectic install application on your PC. • What makes a cloud application different from other applications is its elasticity. • i.e. cloning tasks onto multiple virtual machines. • Gmail and Hotmail are prime examples of SaaS.

15. PaaS (Platform as a service) • providers deliver computing platform. • including operating system, programming language execution environment database. web server. • No need to buy and manage hardware and software • Google App Engine, Microsoft Azure and Saleforce.com are some of the leading vendors.

16. Major Difference between Traditional Hosting and cloud computing • Cloud Computing is sold on demand • The service is managed by the provider • User can determine the amount of service they take • Users can log on to the network from any computer in the world

17. Risks of Cloud Computing • take a long time to resolve. • Terms and condition issue • You are dependent on cloud computing provider. • Data migration issues when changing cloud provider • What happens if your cloud provider goes out of business?

18. Summary + Quick look

20. Cloud Failures • Amazon's failures: (April 22, 2011) Quora.com, Reddit.com, GroupMe.com and Scvngr.com unable to access. • Microsoft online services hit by major failure: (September 9, 2011) Hotmail, Office 365 and Skydrive

Cloud Computing

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