Cloud Service & Deployment Models on Ghafoor's Personal Blog

Community Cloud

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 21:26:13 +0000

A community cloud is shared infrastructure used by organizations with similar requirements, offering cost-sharing benefits and specialized compliance solutions through software-defined technologies.

Community Cloud

A community cloud is a multi-tenant cloud infrastructure shared by several organizations with similar computing needs. The cloud infrastructure can be managed by the organizations or a third-party cloud service provider. The community cloud model is suitable for organizations that have shared concerns, such as regulatory compliance, security, and performance requirements.

Hybrid Cloud Model

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 21:17:25 +0000

Hybrid Cloud Deployment Model

Hybrid Cloud is a computing environment that connects an organization’s on-premise private cloud and third-party public cloud into a single flexible infrastructure for running the organization’s applications and workloads. This mix of public and private cloud resources gives organizations the flexibility to choose the optimal cloud for each application or workload.

 graph TD
	 A[Hybrid Cloud] --> B(Public Cloud)
	 A --> C(Private Cloud)
	 B --> D(Less Sensitive Workloads)
	 C --> E(Sensitive Workloads)

Flexibility and Scalability

Workloads can move freely between the two clouds as needs change. Organizations can run sensitive, highly regulated, and mission-critical applications on private cloud infrastructure, while deploying less sensitive and more dynamic workloads on the public cloud. With proper integration and orchestration between the public and private clouds, both clouds can be leveraged for the same workload, a process known as cloud bursting.

Private Cloud Model

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 21:07:49 +0000

Private Cloud Deployment Model

The National Institute of Standards and Technology defines private cloud as cloud infrastructure provisioned for exclusive use by a single organization comprising multiple consumers, such as the business units within the organization. It may be owned, managed, and operated by the organization, a third party, or a combination of them, and it may exist on or off premises.

Implementation of Private Cloud

Private cloud platforms can be implemented internally or externally. When the platform is provisioned over an organization’s internal infrastructure, it runs on-premises and is owned, managed, and operated by the organization. When it is provisioned over a cloud provider’s infrastructure, it is owned, managed, and operated by the service provider. This external private cloud offering that resides on a cloud service provider’s infrastructure is called a Virtual Private Cloud (VPC). A VPC is a public cloud offering that lets an organization establish its own private and secure cloud-like computing environment in a logically isolated part of a shared public cloud.

Public Cloud Model

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 20:29:25 +0000

Public Cloud Deployment Model

Deployment models indicate where the infrastructure resides, who owns and manages it, and how cloud resources and services are made available to users. The four cloud deployment models include Public Cloud, Private Cloud, Community Cloud, and Hybrid Cloud.

Public Cloud Model

In a public cloud model, users get access to servers, storage, network, security, and applications as services delivered by cloud service providers over the internet. Using web consoles and APIs, users can provision the resources and services they need. The cloud provider owns, manages, provisions, and maintains the infrastructure, renting it out to customers either for a subscription charge or usage-based fee.

Software as a Service (SaaS)

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 18:37:11 +0000

Software as a Service (SaaS)

Software as a Service, or SaaS, is a cloud-based service where users can access software hosted by a provider. The provider takes care of the servers, databases, and code that make up the application. They also handle security, availability, and performance. Users can access these applications over the internet without worrying about maintaining or updating the infrastructure.

Core Business Processes Supported by SaaS

SaaS supports essential business functions like email and collaboration through services like Microsoft’s Office 365 and Google’s Gmail. It also supports Customer Relationship Management (CRM) with tools like NetSuite CRM and Salesforce, Human Resource Management with Workday and SAP SuccessFactors, as well as financial management, billing, and collaboration.

Platform as a Service

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 16:46:34 +0000

Platform as a Service (PaaS)

Platform as a Service, commonly referred to as PaaS, is a cloud computing model that provides customers with a complete platform to develop, deploy, manage, and run applications. The PaaS provider hosts everything: servers, networks, storage, operating systems, application runtimes, APIs, middleware, databases, and other tools at their data center. The provider also takes responsibility for the installation, configuration, and operation of the application infrastructure, leaving the user responsible only for the application code and its maintenance. Customers pay for this service on a usage basis and purchase resources on demand.

Infra Structure as a Service

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 16:39:28 +0000

Infrastructure as a Service (IaaS)

Infrastructure as a Service, or IaaS, is a cloud computing model that provides essential computing, networking, and storage resources over the internet on a pay-as-you-go basis. The cloud provider manages the infrastructure components and virtualization layer, allowing users to focus on their applications.

Virtual Machines and Provisioning

In an IaaS environment, users can create virtual machines (VMs) in various regions and zones. These VMs come with a choice of operating systems, enabling users to install applications and run workloads. Users can also manage storage and backups, and monitor performance and usage.

Cloud Service Model

noreply@example.com (AG Sayyed) — Wed, 12 Mar 2025 12:17:31 +0000

In this document, we will briefly explore the different cloud service models, including Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Understanding these service models is crucial for making informed decisions about which services to use based on your needs. Whether you are a developer, an IT admin, or an end-user, there is a cloud service model tailored to your requirements. By leveraging IaaS, PaaS, and SaaS, organizations can optimize their operations, reduce costs, and focus on their core business objectives.