August 2011
Intermediate to advanced
586 pages
18h 33m
English
Content preview from Expert Oracle Exadata
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C H A P T E R 2
Offloading / Smart Scan
Offloading is the secret sauce of Exadata. It’s what makes Exadata different from every other platform that Oracle runs on. Offloading refers to the concept of moving processing from the database servers to the storage layer. It is also the key paradigm shift provided by the Exadata platform. But it’s more than just moving work in terms of CPU usage. The primary benefit of Offloading is the reduction in the volume of data that must be returned to the database server. This is one of the major bottlenecks of most large databases.
The terms Offloading and Smart Scan are used somewhat interchangeably. Offloading is a better description in our opinion, as it refers to the fact that part of the traditional ...
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