A hybrid cloud is one that spans both public and private clouds for a single application. It requires interoperability across clouds and the ability to manage across both in a unified way. It allows the enterprise to run the steady state workload in a private cloud and cloudburst to a public cloud for peaks, then return that capacity back to the public pool when it is no longer needed.
Evolving to the cloud
There are several things to bear in mind when moving to a cloud model, including the characteristics of specific clouds and the organisational and cultural issues that might become obstacles to the adoption of future architectures.
An enterprise architecture framework is valuable to evaluate and design a cloud infrastructure that delivers on current and future business goals. Such a framework will help architects define the architectural vision, analyse the systems and technical architecture designs and incorporate migration planning, governance, and change management into the overall plan.
The writer is Oracle Hong Kongs managing director.
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