Hybrid clouds a key step in the evolution of the cloud

Grazed from TechTarget. Author: Tom Nolle.

Although cloud computing has gained an enormous following, it still garners only a small fraction of IT spending. To increase cloud usage, cloud computing has to drive changes in how companies build and use applications. Those changes will focus on the intersection between cloud components and legacy applications — the hybrid cloud.

The most important trends in hybrid clouds are the evolution from compartments to components, the emergence of "migratory processing" and the movement toward event-based applications. Nearly all the early cloud applications that enterprises adopted were forms of hosted server consolidation. These applications were logical starting points because they used hardware and support resources very inefficiently, and they were largely independent within the businesses’ overall IT processes…

A departmental server running in the cloud serves the department, as before, so the impact of integration is minimal. The whole notion of a hybrid cloud emerged because it was clear that further expansion of cloud computing would involve applications that were more connected with mainstream IT, so information flows across the public-cloud-to-data-center boundary had to be supported. This process begins with basic integration of workflows, but businesses are now realizing that if work can be exchanged across the public cloud boundary, then cloud resources can back up traditional data center assets…

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