RENÉ ANTÚNEZ

Hybrid Columnar Compression on Exadata: A Back-To-Basics Guide

A LinkedIn post on Hybrid Columnar Compression (HCC) for Oracle Exadata got me thinking on what it is. HCC can provide substantial space savings and improved performance, but its success depends on data access patterns. The post outlines compression options, types of HCC, and best practices for optimal use.

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AI TCO: The Math of GenAI

If you’re still trying to explain GenAI costs using VM-hours or static licenses, you’re setting yourself up for a surprise bill. GenAI demand is nonlinear, it changes based on reasoning depth, RAG strategy, and even your conversation history.
The new unit of accountability? The Token.

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Understanding RMAN : A Back-To-Basics Guide

Learn how Oracle RMAN (Recovery Manager) works under the hood to streamline and secure your database backups. This in-depth guide covers RMAN architecture, block-level backup advantages, internal components like DBMS_RCVMAN and DBMS_BACKUP_RESTORE, channel operations, and integration with third-party media management solutions (SBT, MML). Perfect for DBAs and IT professionals working with Oracle databases, this article explains how to configure and optimize RMAN for enterprise-grade reliability, performance, and compliance.

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What is Oracle ASM (Automatic Storage Management)? A Back-To-Basics Guide

Discover how Oracle ASM simplifies storage management for Oracle RAC by using disk groups, mirroring strategies, and intelligent striping. Learn how it enhances performance, availability, and scalability while reducing downtime—critical for any 19c deployment. Whether you’re a DBA or architect, this blog demystifies ASM’s inner workings and prepares you to deploy it effectively in 19c and beyond.

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Currently I am an Oracle ACE ; Speaker at Oracle Open World, Oracle Developers Day, OTN Tour Latin America and APAC region and IOUG Collaborate ; Co-President of ORAMEX (Mexico Oracle User Group), Web Events Chair for IOUG Cloud Computing Special Interest Group (SIG) ; At the moment I am an Oracle Project Engineer at Pythian