Unit 1.3 types of cloud
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The document discusses different types of cloud computing including public, private, hybrid, and community clouds. It provides details on each type, such as public clouds being available to the general public over the internet and shared between companies, while private clouds are dedicated to a single organization. Hybrid clouds combine public and private clouds. Community clouds are shared between organizations within a specific community. The document also covers cloud infrastructure and how businesses can implement cloud computing infrastructure.
Unit 1.3 types of cloud
- 2. Introduction Cloud Computing term and technology is used every. It can be loosely explained as follows: the operations of a business are carried out in one place and the functions in some remote place; it is possible with the help of technology, that is cloud computing. Cloud computing has an advantage for the businesses to increase their IT functionality without adding extra infrastructure or software.
- 3. Types of Cloud Most people separate cloud computing into two distinct sets of models: Deployment models: This refers to the location and management of the cloud's infrastructure. Service models: This consists of the particular types of services that you can access on a cloud computing platform.
- 4. Types of Cloud Cloud computing can be classified into four types based on the location of the cloud (Deployment Model: 1) Private Cloud 2) Public Cloud 3) Hybrid Cloud 4) Community Cloud
- 5. Public Cloud Public cloud computing services are available to anyone, from anywhere, and at any time throught the Internet. This computing infrastructure is hosted at the vendor’s workplace. The end user cannot view the infrastructure. The computing infrastructure is shared between companies. The Service provider makes the resources such as storage and applications available to the public over the WWW.
- 6. Public Cloud These services may be fre or on a pay-per-usage model. It is meant to serve multitude of users and not a single customer. Any customer requires its virtual computing environment that is separated and mostly likely isolate, from the other users. A Public Cloud can offer any kind of service Infrastructure, Platorm or applications Amazon EC2 is a Public Cloud Providing Infrastructure as service Google AppEngine is a Public Cloud providing an application development platform as a service Salesforce.com is a Public Cloud providing software as a service
- 7. Public Cloud It can be composed by geographically dispersed datacenters inorder to share the load of users and better serve them according to their location. For example, Amazon Web Services has data centers installed in US and in Europe, and allow their customers to choose between three different regions: us-west1, us-east-1 and eu-west-1. Such regions are priced differently and further divided into availability zones, which map to specific data centers.
- 8. Private Cloud Here the computing infrastructure is dedicated to the customer and is not shared with any other companies. They are costly and highly secure than public clouds. Private clouds may be hosted externally as well as in their own premise hosted clouds. Public clouds guarantee a fair management and the respect of the customer’s privacy but still there are threat or as unacceptable risk that some organizations are not willing to take, institution like government and military agencies. Loss of control where virtual IT infrastructure resides could open the way to other problematic situations.
- 9. Private Cloud Geographical location of a datacenter determines the regulations Private clouds are virtual distributed systems that rely on a private infrastructure and provide internal users with dynamic provisioning of computing resources. It have the advantage of keeping in house the core business operations by relying on the existing IT infrastructure – that avoids less critical, sensitive information does not flow out of private cloud.
- 10. Hybrid Cloud Organizations can submit less valued applications in public cloud and high valued applications in the private cloud. The combination is known as hybrid cloud. Cloud bursting is used to define a system where the organization uses its own infrastructure for normal usage and cloud is used for peak times.
- 11. Community Cloud The cloud infrastructure is shared between the companies of the same community. For example, all the government organizations in a city can share the same cloud but not the non-governmental organizations. The users of a specific community cloud fall into a well-identified community, sharing same concerns or needs-they can be government bodies, industries, or even simple users but all of them focus on the same issues for their interaction with the cloud.
- 12. Community Cloud
- 13. Community Cloud The United States Government, under the auspices of the General Services Administrator (GSA), launched a cloud computing portal called Apps.gov. The purpose of providing cloud services to federal agencies. Described under the “U.S. Federal Cloud Computing Initiative (http://www.scribd.com/doc/17914883/US-Federal-Cloud- Computing-Initiative-RFQ-GSA), The goal of the initiative is to make large portions of the federal government's apparatus available under a cloud computing model. This is a good example of a community cloud deployment, with the government being the community.
- 14. Community Cloud The United States Government, under the auspices of the General Services Administrator (GSA), launched a cloud computing portal called Apps.gov. The purpose of providing cloud services to federal agencies. Described under the “U.S. Federal Cloud Computing Initiative (http://www.scribd.com/doc/17914883/US-Federal-Cloud- Computing-Initiative-RFQ-GSA), The goal of the initiative is to make large portions of the federal government's apparatus available under a cloud computing model. This is a good example of a community cloud deployment, with the government being the community.
- 15. Types of cloud computing and their offering to businesses www-based cloud computing service is a type of cloud service that exploits certain web service functionalities, rather than deploying applications. For example Google Maps API Software as a Service is an idea, where an application can be used by multiple tenants, using the browser. Saas solutions are used in sales, ERP and HR Platform as a Service is variant of SaaS, one can run their own applications but by executing on the cloud provider's infrastructure
- 16. Types of cloud computing and their offering to businesses Utility Cloud Computing services offer virtual storage and server options, where the companies can access it on demand. This allows easy creation of virtual data center. Managed services are the oldest cloud computing solutions. In this, a cloud computing provider utilizes an application than the end customers. Examples are using anti-spam services and application monitoring Service commerce is a max of SaaS and managed services. It provides a hub of services, where the end user interacts. Example are tracking expenses, virtual assistant services and travel bookings.
- 17. Cloud Infrastructure • Cloud Computing Infrastructure works likes an Electricity Grid • When you need light in a room you turn the switch on and you have a light. • Similarly, whenever you need resources such as information on software, they are stored in a network called a cloud. • You can find it in your cloud computing infrastructure and pull it up. • Information is stored in cloud computing infrastructure instead of on the computer.
- 18. Cloud Infrastructure -A cloud infrastructure consists of client and server machines - Application, platform and infrastructure services are used by two machines. -Servers deploy services and act as a provides whereas a client uses it and acts as a requestor
- 19. Cloud Infrastructure • Any business that requires multiple computers could benefit from a cloud computing infrastructure. • It eliminates the need for individual employees to backup data regularly • Because the network administrator would be responsible for backing up data on cloud computing infrastructure.
- 20. Cloud Infrastructure One can get cloud computing infrastructure for his business, within the following five steps 1) Choose on demand technology which will be the foundation for your infrastructure 2) Determine how your employees can access information from the infrastructure 3) Prepare the infrastructure with the necessary software and hardware 4) Set up each computer to access the infrastructure 5) Integrate all aspects of the infrastructure so that all employees can participate in resource sharing.
- 21. Cloud Application Architecture -The latest technology in sharing of resources is cloud computing. -It maintains large numbers of servers and can be filled in terms of on- demand and pay-per-cycle. -The end users have no idea about the location of the servers in the cloud network. - Cloud computing is fully enabled by virtualization(hypervisors). A virtualized application is combined with all the components of execution with an operating system. - This flexibility is advantageous to cloud computing and it is varies from other computing such as grid or utility and SaaS. -Launching new instances for an application is easy and it provides the following Scale up and down rapidly Increased fault tolerance Bring up development or test instances Speedier versions to the customer base Load and test an application