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Private cloud vs public cloud What are private and public clouds?
There isn't a one-size-fits-all cloud computing solution. Various cloud models, types, and services have developed to meet organizations' evolving technology needs. The two most common deployment models are private cloud and public cloud.
A private cloud offers computing services over the Internet or a private network to a select organization. Known as internal or corporate clouds, they provide benefits like self-service, scalability, and elasticity, coupled with added control and customization from dedicated resources. Private clouds ensure higher security and privacy via company firewalls and internal hosting, protecting sensitive data from third-party access. Private clouds can merge with public clouds to form hybrid clouds, enabling cloud bursting for increased scalability during periods of high demand.
The Public cloud provides computing resources and services owned and operated by third-party providers, delivered over the Internet. Users share hardware, storage, and network infrastructure with other public cloud “tenants,” with the provider responsible for availability, reliability, and security agreements. Technology services are acquired as needed and not owned by the end-user organization.
- Why choose private cloud?
- What kinds of private cloud solutions does HPE offer?
Why choose private cloud?
A private cloud allows organizations to tailor IT resources to specific operational needs, integrating with third party systems or industry-specific tools, making it ideal for business-critical applications. The freedom to select and architect best-fit hardware and software, combined with enhanced security, control and performance, gives organizations a great deal of flexibility.
While public clouds emerged with a reputation for lower costs and higher scalability, private cloud solutions have significantly evolved to match or exceed such benefits for a variety of key workloads and can also offer a range of payment and management options.
Advantages of a modern, private cloud experience:
- Cost savings—you decide the financial model that works best for your business, including the option of pay-per-use without capital investments, subscription-based or owned infrastructure. You gain cost predictability and efficiency through dedicated infrastructure, controlling long-term expenses, and avoiding hefty data transfer fees: No unauthorized cloud sprawl, no complicated invoices.
- Simplification—depending on the solution, you decide the extent to which it’s managed—for you through HPE or a trusted partner, by you, or a combination of both.
- Agility—rapid provisioning of tools and resources to drive innovation and optimize resources for fluctuating business needs through a central, self-service platform.
- Security—full isolation and control over data, especially suited for sensitive workloads and use cases involving government compliance or industry standards, combined with a comprehensive silicon-to-cloud approach to protect all your data and infrastructure.
- High reliability—a purpose-built private cloud solution can offer six-nines (99.9999%) or even 100% availability on certain solutions.
What are the key differences between private cloud and public cloud?
| Factor | Private Cloud | Public Cloud |
|---|---|---|
| Tenancy | IT resources dedicated to a single organization. | IT resources owned and operated by a third-party provider and shared across customers. |
| Security and compliance | Robust security and privacy services and technologies, tailored to specific compliance needs; data remains in the location of an organization’s choosing. | Depending on industry, geography, and type of information stored, common privacy and security policies that may not be sufficient; data location varies on public cloud provider. |
| Purchasing options | Pay-as-you-go, subscription-based or fully owned infrastructure. | Pay-as-you-go. |
| Control | Always maintained on a private network with a wide choice of customizable hardware and software to match business needs. | |
| Performance | Low latency with minimal delays; predictable and consistent performance. | Performance that can suffer under large workloads on shared infrastructure without proper network management. |
| Management | Can be managed for you, by you, or a combination of both. | Managed by the cloud service provider. |
