Hybrid cloud explained in simple terms: definition, features and advantages

What is a Hybrid Cloud?

A hybrid cloud is a cloud deployment model that combines private cloud (or on-premises infrastructure) and public cloud within a unified, structured environment. This mixed form enables data and applications to be processed flexibly, depending on where it is most appropriate. While the two cloud environments remain independent, they are connected through technical mechanisms, ensuring seamless interaction.

What are the Features of a Hybrid Cloud?

• The key feature of a hybrid cloud is the transparent and secure integration of different cloud environments – such as private cloud, public cloud, and on-premises infrastructure. The connection is usually established via APIs, VPNs, WANs, or other technologies, creating a cohesive and consistent infrastructure.
• Cloud bursting: During periods of peak demand, additional computing capacity can be drawn from the public cloud, while the majority of workloads continue to run in the private cloud.
• Business continuity and disaster recovery: Critical applications can be redundantly hosted in the public cloud to ensure resilience in the event of system failures.
• Compliance with regulations: Sensitive data and workloads subject to regulatory requirements can remain in a controlled private environment, while less critical workloads are handled in the scalable public cloud.

What are the Benefits of a Hybrid Cloud?

The hybrid cloud combines the security and control of a private cloud with the flexibility, scalability, and cost efficiency of a public cloud. Sensitive data can be processed securely in the private environment, while public resources provide additional capacity as needed.
Cost efficiency arises from demand-based usage: peak loads can be absorbed by the public cloud without the need to maintain permanent local capacity. Business continuity is also improved, as workloads can be shifted to the public cloud if private cloud systems fail.
Organisations gain operational flexibility, with the freedom to decide where applications should run based on factors such as data protection, performance, or cost – all of which can be managed centrally.
That said, adopting a hybrid cloud also introduces greater complexity. Infrastructure, data management, and security must be coordinated across multiple platforms, which requires advanced management. There is also the risk of non-compliant data usage if processes are not clearly defined and consistently monitored.