1. Cloud Computing
By Mihir Chitnis

2. Cloud Computing Misconceptions
“Cloud” – an image used to represent Internet or a large foreign network in a diagram.
Cloud Computing: By General public
“virtual servers on the Internet”
“A buzz word, nothing more”
“Its everything of the future”
“Google?”

3. Why understand Cloud Computing?

4. Cloud Computing - Introduction
Higher abstraction of
Grid Computing
Distributed Computing
Multiple concurrent processes over multiple hardware & software systems
Utility Computing
Metered service providing storage and computation
Eg: SalesForce
Is at an early stage.

5. Cloud Computing Features
Self Healing – self maintaining, automated recovery
SLA-Driven – automated resource management
Multi-tenancy – share infrastructure with controlled translucency
Service-oriented – allows applications from discrete services.
Virtualized – One or multiple computers
Linearly scalable (Eg:1x for a server / 2x for two servers)
Data, Data, Data – share, store and relate information

6. Cloudware A platform which supports
Cloud Computing
Processes and Data resides
High performance
Supports single or multiple real/virtual machines
Multiple services & ways to interact
Eg: GigaSpaces eXtreme Application Platform (XAP)

7. Cloud Computing Vs Grid Computing
Lots of small allocation requests
Few allocations for maximum resources
Follows a usage pattern
Follows a queuing system
Real time resource availability
Queued availability of resources
Very scalable
Less scalable
Grid computing is a part of cloud computing
Independent concept

8. Some Cloud Computing Services
Google Apps
Messaging s & Chats
Collaboration - Documents, Video and Sites
Security
Microsoft Azure
Integrated development ,Service hosting & management environment maintained at Microsoft Datacenters.

9. Google Apps

11. Microsoft Azure

12. Microsoft Azure Role Based Implementation
Web Role Web based services. (HTTP,FTP)
Worker Role - Computational Services
Fabric Deployment – scalable hosting
WASS – Windows Azure Storage Service
Cross Platform – Web Services
Built-in management services
Advanced Tracking and logging facilities.

13. References
Charrington, S. "Cloud Computing: It's the Future of Enterprise IT", CloudComputing Journal, 2008.
Harting, K. "What is Cloud Computing?", CloudComputing Journal, 2008.
SHEEHAN, M. "Cloud Computing Vs Grid Computing", CloudComputing Journal, 2008.
"Azure".
"Google Apps".

14. Thank You