Cloud & Software Development

Hybrid cloud

Also known as: hybrid cloud computing, hybrid cloud environment

Hybrid cloud is an IT setup that combines an organization's own on-premises servers or private cloud with public cloud services such as AWS, Azure, or Google Cloud, connected so data and applications can work across both.

Organizations use it to keep sensitive or legacy systems in-house while gaining cloud flexibility for other workloads. While hybrid cloud offers a practical middle path, running two environments adds complexity in networking, security, and skills.

Hybrid cloud, explained at three levels

At home

Hybrid cloud is like keeping valuables in a home safe while storing everyday items in a rented storage unit. You choose where each thing belongs.

At work

Hybrid cloud lets organizations keep sensitive or older systems in-house while using the cloud for everything else.

Real-world examples

At home

Nadia keeps her family photos on a home storage drive and backs them up automatically to the cloud, giving her both quick access and off-site protection.

At work

Jerome manages IT for a Sudbury mining company. Equipment control systems stay on-site for reliability, while email, HR, and analytics run in the cloud.

How it compares

featureHybrid cloudMulti-cloud
EnvironmentsOn-premises plus public cloudSeveral public clouds
Main reasonKeep some systems localAvoid lock-in, use best services
ComplexityHighHigh
Can combineYes, with multi-cloudYes, with hybrid

Hybrid mixes your own systems with cloud. Multi-cloud mixes providers.

For analysts

In cloud strategies, I'd document the reason each workload stays on-premises. Without reasons, 'temporary' hybrid arrangements last forever.

History & origin

As public cloud grew in the late 2000s, many organizations couldn't or wouldn't move everything, due to regulations, legacy systems, or costs. The term 'hybrid cloud' became common in the early 2010s. Microsoft leaned into hybrid with Azure Stack, announced in 2015, and Azure Arc in 2019, while AWS launched Outposts in 2019 to place AWS hardware in customer data centres, and Google launched Anthos the same year. Many organizations that rushed fully into the cloud later moved some workloads back on-premises for cost reasons, a trend called 'cloud repatriation.' In my view, hybrid is less a strategy than the reality most organizations live in.