Definitions and History of Cloud Computing PDF

Definitions and History 1 What is Cloud Computing ? 2 Cloud Computing Definition 3 Cloud Computing Term 4 Do you use Cloud Computing ? 5 Exemple 6...

Definitions and History 1 What is Cloud Computing ? 2 Cloud Computing Definition 3 Cloud Computing Term 4 Do you use Cloud Computing ? 5 Exemple 6 Why do you use Cloud Computing ? 7 Cloud Computing Advantage 8 Internet History 9 Computing History 10 Evolution of Cloud Computing 11 Cloud deployment Models 12 Cloud deployment Models 13 What is 5-4-3 Principles of Cloud comuting ? 14 5-4-3 Principles of Cloud computing The 5-4-3 principles put forth by NIST describe : Five (5) Essential Characteristics Four (4) Cloud Deployment Models Three (3) Service Offering Models 15 Five Essential Characteristics 16  A consumer can provision computing resources on their own. These resources include server time and network storage. The provisioning is automatic and does not require human interaction. No need to contact the service provider for each request. Capabilities are available over the network. They can be accessed through standard mechanisms. This allows use by various client platforms, both thin and thick. Examples of these platforms include mobile phones, laptops, and PDAs. The provider’s computing resources are pooled to serve multiple consumers. A multitenant model is used to allocate resources. Physical and virtual resources are assigned and reassigned based on consumer demand. Customers usually don’t know the exact location of resources. However, they may specify location at a higher level (e.g., country, state, or data center). Examples of resources include storage, processing, memory, and network bandwidth. Capabilities can be rapidly and elastically provisioned. In some cases, provisioning is automatic. Resources can quickly scale out when needed and scale in when no longer required. To the consumer, resources often appear unlimited. Resources can be purchased in any quantity, at any time. Cloud systems automatically control and optimize resource use. They use metering at an appropriate level (e.g., storage, processing, bandwidth, user accounts). Resource usage can be monitored, controlled, and reported. This provides transparency for both the provider and consumer of the service. 17  4 Cloud deployment models The cloud infrastructure is The cloud infrastructure is The cloud infrastructure is shared by The cloud infrastructure is a provisioned for open use by the provisioned for exclusive use by a several organizations and supports a composition of two or more distinct general public. specific community that has shared cloud infrastructures (private, single organization comprising community, or public) that remain It may be owned, managed, and multiple consumers. concerns (e.g., mission, security unique entities but are bound operated by a business, academic, or requirements, policy, and government organization, or some It may be owned, managed, and together by standardized or compliance considerations). It may proprietary technology that enables combination of them. operated by the organization, a third be managed by the organizations or data and application porta- bility It exists on the premises of the cloud party, or some combination of them a third party and may exist on (e.g., cloud bursting for load provider. It may exist on or off premises. premise or off premise. balancing between clouds). 18