Cloud computing

[seminar class]

PRESENTED BY-
SHAILESH KUMAR TIWARY

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CLOUD COMPUTING
What cloud computing is ?
 A style of computing where massively scalable (and elastic) IT-related capabilities are provided “as a service” to external
• customers using Internet technologies.
 Cloud Computing is a computing paradigm, where large pool of system are connected in private or public networks, to provide dynamically scalable infrastructure, for application , data and file storage.
• What Cloud computing is NOT ?
• Cloud Service Taxonomy
• Public Cloud Service
Definition
 The standard cloud computing model
 The sp makes the resources , such as application & storage, available to general public over internet
 Free or offered on a pay per use model
Private Cloud Services
 Internal cloud or corporate
 Definition
 Proprietary cloud architecture that provides hosted services limited number of people behind a firewall
 Designed to appeal to an organization that needs or wants more control over their data than they can get by using a third-party hosted service
Hybrid Cloud Services
 Definition
 Hybrid Cloud combine both public & private cloud model
 With a hybrid cloud, service provider can utilize 3rd party cloud in a full or partial manner
 It increases the flexibility of computing
Software as a Service (SaaS)
Features
 No hardware or software to manage
 Service delivered through a browser
 Customers use the service on demand
 Instant Scalability
Providers
 Google Docs
 Sales Force.com
 37 signals
 Zoho
Platform as a Service (PaaS)
 Platforms are built upon Infrastructure, which is expensive
 The Platforms is used to design , develop , build and test applications are provided by the cloud infrastructure.
Providers
 Google App Engine
 Azure service platform platform
 Force.com
Infrastructure as a Service(IaaS)
 IaaS provides basic storage & computing capabilities as a standardized services over the network
 In this pay per use service model, services like storage , database management & compute capabilities are offered on demand.
Providers
 Amazon Web Services
 GoGrid.com
• Fig. Distinguishing Cloud Service Model
What makes cloud computing compelling?
 In one word – economic
 Faster, simpler, cheaper to use
 No upfront capital required for server & storage
 No operational expenses for running datacenter
 Applications can be accessed from anywhere anytime
 Scalability
 The Green Cloud
What are the barrier to cloud computing?
 Data Security
 Customer don’t wish to trust their data to the cloud
 Data must be retained for regulatory reason
 Application availability
 Can not switch from existing application legacy
 Not all Application work on cloud computing
Future prospect
• By 2012, 80 percent of Fortune 1000 enterprises will pay for some cloud computing service and 30 percent of them will pay for cloud computing infrastructure.
• Through 2010, more than 80 percent of enterprise use of cloud computing will be devoted to very large data queries, short-term massively parallel workloads, or IT use by startups with little to no IT infrastructure.
MY EXPRIENCE
Cloud computing means getting best performing system with best monetary value.
It will be advantageous in both economical as well as environmental aspects.