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A look into the Exadata infrastructure

An Oracle Exadata database machine consists of several parts: Intel based servers, infiniband switches, a cisco ethernet switch, a KVM switch and the hardware surrounding it like cables, 19″ rack, power distribution units. The Intel based servers are what “Exadata administrators” are administering the most. The intention of this article is to let the reader gain a little more insight into Exadata specific administration on those.

Two server layers: computing and storage
The two layers have quite different properties: the Exadata computing layer is Linux with Oracle grid infrastructure and the Oracle database software installed, very much as you would do yourself (if you install it in a strict OFA way), and the storage layer is Linux too, but with specific Exadata storage software.