How We Improved SAN and NAS Performance with Oracle Hybrid Columnar Compression?

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How to use the Hybrid Columnar Compression feature of Oracle Database11g Release2 (11.2.0.3) with external NAS and SAN storage to reduce required storage capacity and improve query performance.

Though I'm not Oracle DBA but I found the attached aricles relevant to your question along with the article shared by Jad.

Transforming Business with Oracle's OptimizedStorage for Oracle Database11

SAN Storage Overview

Oracle's NAS Storage