07-09-2012, 10:32 AM
Seminar report on CLOUD COMPUTING
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ABSTRACT
Cloud computing is on everyone’s lips: as an innovative technology, as the next generation of the Internet, as a fundamental transformation of the entire IT landscape, and as an auspicious opportunity to introduce new business ideas
Cloud computing adopts the ideas of utility computing. The required number of resources are made available and must be paid for. For unused resources, nothing will be charged. Cloud computing is therefore of economic significance since, due to its flexibility in provisioning and using its services, considerable savings are possible.
Cloud computing is basically an Internet-based network made up of large numbers of servers - mostly based on open standards, modular and inexpensive. Clouds contain vast amounts of information and provide a variety of services to large numbers of people Cloud computing delivers infrastructure, platform, and software (applications) as services, which are made available to consumers as subscription-based services under the pay-as-you-go model. In industry these services are referred to as Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS) respectively
The Emergence of Cloud Computing :
Some technologists think cloud computing is the next big thing in the world of IT. Others believe it is just another variation of the utility computing model that has been repackaged in this decade as something new and cool.
The term the cloud is often used as a metaphor for he Internet and has become a familiar cliché. However, when “the cloud” is combined with “computing,” it causes a lot of connfusion.. Technologists define cloud computing, as a new type of utility computing that basically uses virtual servers that have been made available to third parties via the internet
The Global Nature of the Cloud
The cloud sees no borders and thus has made the world a much smaller place. The Internet is global in scope but respects only established communication paths. People from everywhere now have access to other people from anywhere else. Globalization of computing assets may be the biggest contribution the cloud has made to date.
The beauty of cloud computing, is that one company hosts another Compay’s application. This means that they handle the costs of servers, they manage the software updates, and depending contract— pay less for the service.
Cloud Components :
In a simple, topological sense, a cloud computing solution is made up of several elements: clients, the datacenter, and distributed servers., these components make up the three parts of a cloud computing solution.
Each element has a purpose and plays a specific role in delivering a functional cloudbased application.
CLOUD STORAGE :
Cloud storage involves exactly what the name suggests—storing data with a cloud service provider rather than on a local system. As with other cloud services, one can access the data stored on the cloud via an Internet link.
Cloud storage has a number of advantages over traditional data storage. If data is stored on a cloud, you can get at it from any location that has Internet access.
More typically, however, cloud storage systems utilize dozens or hundreds of data servers. Because servers require maintenance or repair, it is necessary to store the saved data on multiple machines, providing redundancy.
Most systems store the same data on servers using different power supplies. That way,
clients can still access their data even if a power supply fails.
Many clients use cloud storage not because they’ve run out of room locally, but for safety. If something happens to their building, then they haven’t lost all their data.
9.1.Storage as a Service:
The term Storage as a Service (another Software as a Service, or SaaS, acronym) means that a
third-party provider rents space on their storage to end users who lack the budget or capital
budget to pay for it on their own. It is also ideal when technical personnel are not available or have inadequate knowledge to implement and maintain that storage infrastructure.
The biggest advantage to SaaS is cost savings. Storage is rented from the provider using a cost-per-gigabyte-stored or cost-per-data-transferred model. The end user doesn’t have to pay for infrastructure; they simply pay for how much they transfer and save on the provider ’s servers