Going Ahead1) What is Cloud computing? And its concept (Dheeraj
Seth) 2) Structure and SaaS (Aashish Hande) 3) Leading &
service players (Girish Patel) 4) Characteristics , Why CC and
Storage (Nargis) 5) Purpose and benefits (Karishma) 6) Amazon web
services Opportunity & challenge (Kunal) 7)
Advantages/Disadvantage & Future (Deven)
Why term Cloud Computing is used? Cloud computing is an umbrella
term used to refer to Internet based development and services.
Cloud is an metaphor used for Internet used in Diagram .
Definition Using the internet to access someone elses software
running on someone elses hardware in someone elses data centre.
Cloud Computing is a general term used to describe a new class of
network based computing that takes place over the Internet,
basically a step on from Utility Computing.
Users do not have or need knowledge,control,ownership in
computer infrastructure
Cloud ComputingCategories: Software as a Service (SaaS) Platform
as a Service (PaaS) Infrastructure as a Service (IaaS)
Cloud Architecture
19th May, 09
[email protected]
SaaS Software-as-a-Service Delivery of complete applications via
the internet. Based on One to many Model "Software deployed as a
hosted service and accessed over the Internet. No need of
installing and maintaining Ex. Google Apps, Salesforce.com and
Microsoft Online Services.
PaaS Platform-as-a-Service PaaS is a way to rent operating
systems, storage and network capacity over the Internet. OS can be
changed and upgraded frequently Ex. Microsoft Azure, Google App
Engine and Salesforce's Force.com platform.
IaaS Infrastructure-as-a-Service Delivery of hardware
infrastructure to end users as a service from large data centre's
that are available over the internet. Charged only on usage basis
Ex. Amazon EC2, Rackspace and Go Grid.
CHARACTERISTICS On-demand self-service Easy network access
Location independent resource pooling Rapid elasticity Pay per
use
WHY CLOUD COMPUTING Access to applications and data from
anywhere at any time. It could bring hardware costs down Wide
access to computer applications Removing the need for physical
space on the front end Corporations might save money on IT support.
Client could take advantage of the entire network's processing
power with the help of a grid computing
Amazon First company to offer cloud services Services
include:
Elastic compute cloud(EC2) Simple storage service(S3) Simple
Queue Service(SQS) Simple DB
These services have to be done through the command line
Google Has a multi year lead in cloud computing Considered as
the elephant in the cloud Best known services:
Gmail Google Docs Google Calendar PicasaGoogle Sites Google
Gadgets Google Video Google Apps Engine
Lesser known services:
Microsoft It is called Windows Azure Its an operating system
Also offers Azure services platform Key components include: Windows
Azure Microsoft SQL services Microsoft .NET services Live services
Microsoft SharePoint services & Microsoft Dynamics CRM
services
Benefits of Cloud Computing Scalability Easy Implementation
Skilled Practitioners Frees up Internal Resources Quality of
Service
Purposes of Cloud Computing Use a cloud-based email service
Investigate online-docs services Collaborate online Share photos
Start a blog
Amazon (AWS) Amazon Web Services (AWS) Launched in July 2002
Offers a number of services Elastic Compute Cloud (EC2) Simple
Storage Service (S3) Simple Queue Services (SQS) SimpleDB
Opportunities It enables services to be used without any
understanding of their infrastructure. Cloud computing works using
economies of scale Data and services are stored remotely but
accessible from anywhere Becoming increasingly associated SME
Challenges Limit flexibility and innovation Risk of big giants
like Google and IBM, who may monopolise the market.
Security could prove to be a big issue It is still unclear how
safe out-sourced data is and when using These services ownership of
data is not always clear.
There are also issues relating to policy and access What happens
if the remote server goes down? How will you then access files?
Cases of users being locked out of accounts & losing access to
data
Advantages of Cloud Computing Lower computer costs Improved
performance Reduced software costs Instant software updates
Unlimited storage capacity Universal document access Increase data
relaibility
Disadvantages of Cloud Computing Requires a constant Internet
connection Does not work well with low-speed connections Program
Can be slow Features might be limited Stored data might not be
secure Stored data can be lost
The Future Future of the Cloud Computing by 2020 Cloud business
has grown by 200% Enterprises will open up more towards Cloud
Computing Initiatives in cloud computing by Big Giants
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