Module 1: Cloud Computing Fundamentals
Topic 1: Introduction to Cloud Computing
Deployment models: Public, private, hybrid
Deployment models refer to the different ways in which computing resources are made available to users or applications. The three main deployment models are public, private, and hybrid.
Public deployment model: In this model, computing resources are owned and operated by a third-party provider, who makes them available to users over the internet. Examples of public cloud providers include Amazon Web Services (AWS), Microsoft Azure, and Google Cloud Platform. Public cloud services are typically offered on a pay-per-use basis and are highly scalable, making them ideal for applications with fluctuating demands.
Private deployment model: In this model, computing resources are owned and operated by an organization and are not shared with other organizations. Private clouds can be located on-premises or hosted by a third-party provider. Private clouds offer more control over security and compliance, as well as the ability to customize infrastructure to meet specific needs. For Example Morpheus
Hybrid deployment model: In this model, an organization uses both public and private cloud resources to meet its computing needs. This can be useful for organizations that want to take advantage of the scalability and cost-effectiveness of public cloud services, while still maintaining control over certain sensitive data or applications.
Overall, the choice of deployment model depends on a variety of factors, including an organization's security and compliance requirements, the sensitivity of data, and the scalability needs of applications.
Public cloud: definition, benefits, and examples
The public cloud refers to a cloud computing model where computing resources such as servers, storage, and software are owned and operated by third-party service providers and are delivered over the internet. Public cloud services are typically offered on a pay-per-use basis, allowing organizations to scale their computing resources up or down as needed without incurring the costs of owning and maintaining their own infrastructure.
Benefits of public cloud:
Scalability: Public cloud services are highly scalable, allowing organizations to easily add or remove computing resources to match their changing business needs.
Cost-effective: Public cloud services can be more cost-effective than building and maintaining an on-premises data center, as organizations only pay for the resources they use.
Accessibility: Public cloud services can be accessed from anywhere with an internet connection, making it easy for remote workers to access the same resources as those working on-premises.
Maintenance and Support: Public cloud providers offer maintenance and support services, reducing the burden on organizations' IT staff.
Examples of public cloud providers:
Amazon Web Services (AWS): Amazon's cloud computing platform is the largest and most widely used public cloud service, offering a wide range of services for computing, storage, and networking.
Microsoft Azure: Microsoft's cloud computing platform offers a similar range of services to AWS and is particularly popular among organizations that use Microsoft products.
Google Cloud Platform: Google's cloud computing platform offers services for computing, storage, and networking, as well as machine learning and data analytics services.
IBM Cloud: IBM's cloud computing platform offers services for computing, storage, and networking, as well as AI and blockchain services.
Overall, public cloud services can provide organizations with flexible, scalable, and cost-effective computing resources that can help them meet their business needs.
Private cloud: definition, benefits, and examples
Private cloud refers to a cloud computing model where computing resources such as servers, storage, and software are owned and operated by an organization and are not shared with other organizations. Private clouds can be located on-premises or hosted by a third-party provider, but in either case, they are dedicated to a single organization's use.
Benefits of a private cloud:
Security: Private clouds offer greater control over data security and compliance, as the organization has complete control over its computing resources and can configure them to meet specific security requirements.
Customization: Private clouds can be customized to meet the unique needs of an organization, as resources can be tailored to specific workloads and applications.
Cost-effective: Private clouds can be more cost-effective than using a public cloud for certain workloads, as they do not require ongoing usage-based payments.
Performance: Private clouds can offer better performance and lower latency than public clouds, as they are not subject to the potential network congestion and variability of the public internet.
Examples of private cloud providers:
VMware: VMware offers a range of private cloud services, including software-defined data center (SDDC) solutions that allow organizations to virtualize and manage their computing resources.
Microsoft Azure Stack: Microsoft offers a private cloud solution based on its Azure public cloud platform, allowing organizations to deploy and manage their own private cloud resources.
OpenStack: OpenStack is an open-source platform for building private clouds, offering a range of services for computing, storage, and networking.
IBM Cloud Private: IBM offers a private cloud solution based on Kubernetes, allowing organizations to deploy and manage their own containerized applications.
Overall, private clouds can provide organizations with greater control, customization, and security than public clouds, making them well-suited for certain workloads and applications. However, they can also be more expensive and complex to manage than public clouds.
Hybrid cloud: definition, benefits, and examples
Hybrid cloud refers to a cloud computing model that combines both public and private cloud resources to create a unified computing environment. Hybrid clouds allow organizations to take advantage of the scalability and cost-effectiveness of public clouds for certain workloads, while still maintaining control over sensitive data and applications by keeping them on a private cloud.
Benefits of hybrid cloud:
Flexibility: Hybrid clouds offer organizations the flexibility to use the most appropriate cloud deployment model for each workload or application.
Security: Sensitive data and applications can be kept on the private cloud, providing greater control and security.
Scalability: Public cloud resources can be used to scale up computing resources quickly to meet changing business needs.
Cost-effectiveness: Hybrid clouds can be more cost-effective than using a private cloud alone for all workloads, as public cloud resources can be used for less sensitive workloads.
Examples of hybrid cloud providers:
AWS Outposts: AWS Outposts is a service that allows organizations to run AWS services on-premises, creating a hybrid cloud environment.
Microsoft Azure Stack: Microsoft Azure Stack is a private cloud solution that can be used in a hybrid cloud environment, allowing organizations to use both public and private cloud resources.
Google Anthos: Google Anthos is a hybrid cloud platform that allows organizations to manage and deploy applications across both public and private clouds.
IBM Cloud Satellite: IBM Cloud Satellite is a service that allows organizations to run IBM Cloud services on-premises or in other clouds, creating a hybrid cloud environment.
Overall, hybrid cloud can provide organizations with the best of both worlds, allowing them to take advantage of the scalability and cost-effectiveness of public clouds while still maintaining control over sensitive data and applications on a private cloud.