1. CLOUD COMPUTING Ankur Desai, Manish Chiniwalar Electronics & Communication Department, Gogte Institute of Technology, Belgaum

2. Definition

moving computing and data away from the desktop and the portable PC and simply displaying the results of computing that takes place in a centralized location and is then transmitted via the internet on the user's screen

- John Makroff

3. Introduction

Cloud is a metaphor for describing the Internet.

On-demand self-service Internet Infrastructure where you pay only for what you use, all managed by a browser, application or API.

The best example of cloud computing is Google Apps where any application is deployed on the server can be accessed using a browser through the Internet.

Where we install subscribe softwares

4. Other technologies

Grid computing:In a grid of multiple computers, each of them us the others available resources.

Utility computing:

5. Architecture Cloud Computing FRONT END BACK END Server/Data center + Any software (OS, docs, email, games, etc) Client Computer + Interface software Internet 6. Characteristics

• Massive scale

• Virtualization

• Non-stop computing

• Software purchase not required

• Geographic distribution

• Service oriented software

• Autonomic computing

• Advanced security technologies

7. Cloud Computing Categories

IaaS- Infrastructure as a Service

PaaS- Platform as a Service

SaaS- Software as a Service

8. Infrastructure as a Service (IaaS)

Delivers basic storage and compute capabilities as standardized services over the network.

Servers, storage systems, switches, routers, and other systems are pooled and made available to handle workloads that range from application components to high-performance computing applications.

9. Infrastructure as a Service (IaaS) 10. Platform as a Service (PaaS)

It is a paradigm for delivering operating systems and associated services over the Internet without downloads or installation.

Also delivers platform for application development on cloud technologies.

11. Platform as a Service (PaaS) 12. Software as a Service (SaaS)

Features a complete application offered as a service on demand.

A single instance of the software runs on the cloud and services multiple end users or client organizations.

Applications may include document editors, games, or any other custom built application

13. Software as a Service (SaaS) 14. Cloud Infrastructure 15. Traditional Computing

Purchase hardware

Purchase software

Find space in data center

Create migration plan

Setup development & test

Configure systems

Configure databases

Configure networks

16. With Cloud Computing

Get a login ID!

Lets look at an example

17. The eyeOS operating system 18. The eyeOS operating system 19. The eyeOS operating system 20. The eyeOS operating system 21. SINGLE TENANT Vs MULTI-TENANT ARCHITECTURE Single tenancy gives each customer a dedicated software stack and each layer in each stack still requires configuration, monitoring, upgrades, security updates, patches, tuning and disaster recovery.

• On a multi-tenant platform, all applications run in a single logical environment: faster, more secure, more available, automatically upgraded and maintained. Any improvement appears to all customers at once.

Server OS Database App Server Storage Network App 1 Server OS Database App Server Storage Network App 2 Server OS Database App Server Storage Network App 3 Other apps Shared infrastructure 22. Advantages

Agility

Cost

Deviceand location independence

Multi-tenancy

Centralization

Peak-load

Utilization and efficiency

Reliability

Scalability

Security

Sustainability

23. DISADVANTAGES OF CLOUD COMPUTING

Stored data might not be secure

Dependent on internet connection

Its not platform agnostic

Can be slow

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