1. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
Introduction to cloud computing By Dr.S.Sridhar, Ph.D.(JNUD), RACI(Paris, NICE), RMR(USA), RZFM(Germany) Director, RV Cognitive Technologies R.V. COLLEGE OF ENGINEERING, BANGALORE Delivered at KLS ,Gogte Institute of Technology Belgaum, Faculty Development Program ,17-18 Feb Organised by ISE Department
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

2. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
Cloud computing
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

3. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

4. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

5. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

6. Why we use cloud computing?

7. Why we use cloud computing?
Case 1:
Write a file
Save
Computer down, file is lost
Files are always stored in cloud, never lost

8. Why we use cloud computing?
Case 2:
Use IE --- download, install, use
Use QQ --- download, install, use
Use C download, install, use ……
Get the serve from the cloud

9. What is cloud and cloud computing?
Demand resources or services over Internet
scale and reliability of a data center.

10. What is cloud and cloud computing?
Cloud computing is a style of computing in which dynamically scalable and often virtualized resources are provided as a serve over the Internet.
Users need not have knowledge of, expertise in, or control over the technology infrastructure in the "cloud" that supports them.

11. The architecture of cloud computing system

12. Characteristics of cloud computing
Virtual.
software, databases, Web servers, operating systems, storage and networking as virtual servers.
On demand.
add and subtract processors, memory, network bandwidth, storage.

13. Types of cloud service SaaS Software as a Service PaaS
Platform as a Service
IaaS
Infrastructure as a Service
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

14. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
SaaS
Software delivery model
No hardware or software to manage
Service delivered through a browser
Customers use the service on demand
Instant Scalability
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

15. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
SaaS
Examples
Your current CRM package is not managing the load or you simply don’t want to host it in-house. Use a SaaS provider such as Salesforce.com
Your is hosted on an exchange server in your office and it is very slow. Outsource this using Hosted Exchange.
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

16. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
PaaS
Platform delivery model
Platforms are built upon Infrastructure, which is expensive
Estimating demand is not a science!
Platform management is not fun!
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

17. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
PaaS
Examples
You need to host a large file (5Mb) on your website and make it available for 35,000 users for only two months duration. Use Cloud Front from Amazon.
You want to start storage services on your network for a large number of files and you do not have the storage capacity…use Amazon S3.
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

18. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
IaaS
Computer infrastructure delivery model
A platform virtualization environment
Computing resources, such as storing and processing capacity.
Virtualization taken a step further
Sometimes called Utility computing
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore 18

19. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
IaaS
Examples
You want to run a batch job but you don’t have the infrastructure necessary to run it in a timely manner. Use Amazon EC2.
You want to host a website, but only for a few days. Use Flexiscale.
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

20. Cloud computing and other computing techniques
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

22. An Industry Transformed
Delgo
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23. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
Shrek, Delgo, and Others
Why did Dreamworks use this?
Upsides?
Downsides?
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24. Grid Computing & Cloud Computing
share a lot commonality
intention, architecture and technology
Difference
programming model, business model, compute model, applications, and Virtualization.

25. Grid Computing & Cloud Computing
the problems are mostly the same
manage large facilities;
define methods by which consumers discover, request and use resources provided by the central facilities;
implement the often highly parallel computations that execute on those resources.

26. Grid Computing & Cloud Computing
Virtualization
Grid
do not rely on virtualization as much as Clouds do, each individual organization maintain full control of their resources
Cloud
an indispensable ingredient for almost every Cloud

27. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
Google App Engine
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore

28. Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore
Enter Title of Presentation Here
Google App Engine
Does one thing well: running web apps
Simple app configuration
Scalable
Secure
Dr.S.Sridhar, Director, RVCT, RVCE, Bangalore 28
Google Confidential 28

29. App Engine Does One Thing Well
Enter Title of Presentation Here
App Engine Does One Thing Well
App Engine handles HTTP(S) requests, nothing else
Think RPC: request in, processing, response out
Works well for the web and AJAX; also for other services
App configuration is dead simple
No performance tuning needed
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Google Confidential 29

30. App Engine Architecture
req/resp
stateless APIs
R/O FS
urlfech
Python VM
process
stdlib
mail
app
images
datastore
stateful
APIs
memcache
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31. How to use Google App engine
Download Java 6
Download Eclipse and Google plug in
Register a user account in Google
Create an application (python, Java) and upload the code

32. Study Google App Engine