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Oracle Exadata Expert’s Handbook by Tariq Farooq

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3. The Secret Sauce: Exadata Storage Cells

The core focus of this chapter is to examine the Exadata Storage Server, popularly known as Exadata Cell, in more detail. Storage Cells are arguably the “secret sauce” or critical element that makes Exadata scale and perform so well. While the previous chapters explained the features and advantages of Exadata in 360-degree view, in this chapter we’ll complete the picture by focusing on the highly specialized storage.

DBAs have almost universally acknowledged that historically the Achilles’ heel for database performance was disk I/O. The faster the database and/or the more spindles handling database requests, the better the performance. Of course, newer storage technologies such as Flash disk or SSD (solid-state ...

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