Different Cloud Deployment & Cloud Service Models

1. Different Cloud Deployment & Cloud Service Models

2. Table of Contents • Cloud-based Solutions • Cloud Deployment Models • Public Cloud • Advantages and Disadvantages of Public Cloud • Private Cloud • Advantages and Disadvantages of Private Cloud • Hybrid Cloud • Advantages and Disadvantages of Hybrid Cloud • Cloud Service Models • Infrastructure as Service (IaaS) • Platform-as-a-Service (PaaS) • Software as a Service (SaaS)

3. Cloud-based Solutions • A Cloud-based solution (cloud) refers to an on-demand delivery of computing resources that can be accessed through the Internet and through the shared cloud computing infrastructure of another provider. It provides access to many resources (storage space, networks, software and applications and other on-demand services). • Cloud-based solutions’ benefits include increased scalability and functionality as well as a reduction in cost that has to do with computer infrastructure, maintenance and in keeping and training an in-house IT staff. It helps companies to focus on their core business. • There are 3 categories of Cloud pricing models, which are usually offered as a “pay-as-you-go” subscription. These are- • Servers in the cloud • Applications/sites in the cloud • Storage in the cloud

4. Cloud Deployment Models YELLOW • Cloud deployment models refer to the types of cloud environment, which can be public, private or hybrid clouds. Businesses can opt for any of these, depending on their particular requirements. These will be discussed in more detail in the following slides. • To digress, the term “cloud” brings to mind cloud hosting, which is one of the types of web hosting service and is provided by web hosting companies. The other types of hosting services can be shared, dedicated, VPS, reseller, WordPress etc. The best companies in the hosting business are often referred to as the “Best Website Hosting Company”, the “Best Windows Hosting Company” or as the “Top Cloud Hosting Company”.

5. Public Cloud • An outsourced cloud provider owns a public cloud. It can be accessed by many businesses via the Internet. It helps organizations save money with regard to IT operational costs, by providing the necessary services and infrastructure. In it, the cloud provider is responsible for resources’ creation and maintenance. It is usually the small and medium-sized businesses that have budget constraints which find public clouds an ideal option.

6. Advantages and Disadvantages of Public Cloud YELLOW Advantages • Cost-effective • Extremely reliable • Easy to manage • Easy to scale • Geographical restrictions don’t exist Disadvantage • It isn’t the safest option with regard to data that is sensitive

7. 1-800-123 -8156 Whoa! That’s a big number, aren’t you proud?

8. Private Cloud A private cloud offers services to a selected group of users rather than to the general public, either over the Internet or over an internal network that is private. This type of cloud deployment model can be hosted externally with regard to the business using it, or it can be managed in-house. A more controlled environment is offered by it. In it the access to IT resources is more centralized. Private clouds offer more security and privacy. Despite being expensive, it provides greater autonomy with regard to customizing storage as well as networking, to suit the IT requirements of a business. Since it is an organization’s IT staff that is responsible for managing a private cloud, it calls for the same staffing as well as expenses for maintenance and management that is required by a data center.

9. Advantages and Disadvantages of Private Cloud Advantages Greater security Better control over the server Can be customized Disadvantages Accessing data from remote locations is difficult IT expertise is required

10. Hybrid Cloud YELLOW • A hybrid cloud deployment model provides the benefits of both, a public and a private cloud. In it a private cloud is combined with one or more public cloud services by using proprietary software that enables communication among distinct services. Greater flexibility is gained by businesses when they use a hybrid cloud strategy. This is accomplished by shifting workloads among cloud solutions depending on the fluctuations in costs and requirements. • Hybrid cloud services enable businesses to have more control over their private data. A business can store its sensitive data on a private cloud and utilize the powerful computational resources of a public cloud. In a hybrid cloud, admins don’t need to manage each cloud environment separately which is the case in a multi-cloud environment.

11. Advantages and Disadvantages of Hybrid Cloud YELLOW • Advantages • Extremely flexible and scalable • More secure • Cost-effective • Disadvantage • Conflicted communication at network level

12. Cloud Service Models YELLOW • Cloud service models are of three types, which are distinctly different from each other, but these are capable of interacting with each other to form a comprehensive cloud service model. These three types of cloud service models are mentioned below. • Infrastructure as a Service (IaaS) • Platform as a Service (PaaS) • Software as a Service (SaaS)

13. Infrastructure as Service (IaaS) YELLOW • IaaS is the most common type of cloud service model. It provides a fundamental infrastructure that includes data storage drives, virtual servers, operating systems and network. It offers the reliability, scalability and the flexibility that a cloud environment is known to provide to businesses. Moreover, it eliminates the need to maintain hardware in a company’s office. It is an outsourced service that is available as a private, public or as a hybrid infrastructure. • It is an ideal option for small and medium-sized organizations that are looking for an IT solution which supports their business and is cost-effective.

14. Platform-as-a-Service (PaaS) YELLOW • PaaS involves deployment of the infrastructure and software framework by the cloud computing providers and lets businesses develop as well as run their own applications. PaaS aids in creating web applications easily and quickly. Moreover, the service is sufficiently powerful and flexible to support these. • These scalable solutions are ideal for situations where multiple developers are working on one project as well as for such situations which require an existing data source to be leveraged.

15. Software as a Service (SaaS) YELLOW • In SaaS software is deployed to various businesses over the Internet. It serves as an important tool for applications that require a substantial amount of web or mobile access and is an ideal option for short-term projects. Since SaaS is managed from a central location, businesses don’t need to worry about its maintenance.

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