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.
Benefits of Virtual Private Cloud
Using a VPC, organizations can leverage the dynamic scalability, high availability, and lower cost of ownership of a public cloud while having the infrastructure and security tailored to the organization’s unique needs. Virtual Private Clouds are offered by most public cloud providers, such as IBM and Amazon.
Advantages of Private Cloud
A private cloud is a virtualized environment modeled to bring in the benefits of a public cloud platform without the perceived disadvantages of an open-end shared public platform. Users of a private cloud, such as developers and business units in an organization, still get to leverage benefits such as economies of scale, granular scale, operational efficiencies, and user self-service while exercising full control over access, security, and compliance specific to their organization and business.
Key Benefits
- Leverage Cloud Computing: Use systems directly managed or under perceived control of the organization’s internal IT.
- Utilize Internal Resources: Better utilize internal computing resources, reducing costs by leveraging existing investments in hardware and software.
- Scalability: Achieve better scalability through virtualization and cloud bursting, leveraging public cloud instances temporarily and returning to the private cloud when the surge is met.
- Controlled Access and Security: Implement greater security measures customized to specific organizational needs.
- Agility: Expand and provision resources in a relatively short amount of time, providing greater agility.
Reasons for Choosing Private Cloud
Organizations may choose to opt for private cloud for various reasons, such as providing a unique competitive advantage, addressing security and regulatory concerns, or managing highly sensitive data subject to strict industry or governmental regulations.
Common Use Cases for Private Cloud
- Modernizing In-House and Legacy Applications: Moving applications from dedicated hardware to the cloud allows organizations to leverage the power of compute resources and multiple services available on the cloud.
- Integrating Data and Application Services: Organizations integrate data and application services from existing applications with public cloud services, leveraging private cloud’s compute capability for larger jobs while pulling data into an application on a private cloud to leverage public cloud services.
- Application Portability: Private cloud enables organizations to build applications anywhere and move them anywhere without compromising security and compliance.
- Addressing Security and Regulatory Concerns: Private cloud offers the benefits of on-demand enterprise resources while maintaining full control over critical security and compliance issues within a dedicated cloud environment.
Conclusion
FAQ
A private cloud is 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.
A Virtual Private Cloud (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. It combines the scalability and convenience of public cloud with the data isolation of private cloud.
Advantages of private cloud include enhanced security and privacy, greater control over organizational data, the ability to customize the environment to meet specific business and compliance requirements, and dedicated resources without sharing with other organizations.
Disadvantages include higher costs compared to public cloud (especially for on-premises implementations), responsibility for maintaining and upgrading infrastructure, potentially limited scalability compared to public cloud options, and the need for specialized IT skills to manage the environment.
Organizations should consider private cloud when they have strict security, regulatory, or compliance requirements, need complete control over their data and infrastructure, have workloads that require consistent and predictable performance, or have existing infrastructure investments they want to leverage in a cloud-like environment.