Smart-Scan on ora-base

Reading an Exadata AWR Report: A Full Case Study from Symptom to Root Cause

Tue, 03 Mar 2026 00:00:00 +0000

A realistic fabricated Exadata AWR report with a deliberately embedded performance problem — walk through each section methodically, identify every red flag, and arrive at the root cause and fix. Essential reading for Oracle DBAs who want to move beyond guesswork.

ExaCC I/O Resource Management and Storage Performance Tuning

Sun, 01 Mar 2026 00:00:00 +0000

How to configure and tune IORM, Smart Flash Cache, and storage-level performance on Exadata Cloud@Customer when multiple VM Clusters share storage resources

Deep Dive into Oracle Exadata Smart Scan: The Secret Sauce of Performance

Sat, 21 Feb 2026 00:00:00 +0000

If you are running workloads on Oracle Exadata, you are likely sitting on a goldmine of performance capability. The most significant differentiator between Exadata and traditional storage architectures is a feature called Smart Scan (also known as Cell Offload Processing).

Instead of treating storage as dumb disks that just serve blocks to the database, Exadata pushes SQL processing down to the storage tier. This article explains how Smart Scan works, how to verify it, and how to control its behaviour for testing.

Oracle Exadata X11M: Architecture and Hardware Specifications

Sat, 21 Feb 2026 00:00:00 +0000

The Exadata X11M platform separates database compute and storage cells connected via an RDMA-capable RoCE fabric. This page summarizes hardware variants and provides practical command-line examples for common administration, troubleshooting and monitoring tasks.

Architecture Overview

Database Servers (Compute)

These servers run the database and client-facing workloads.

Standard Exadata X11M Database Server
- CPU: 2x 96-core AMD EPYC 9J25 (192 physical cores)
- Memory: 6400 MT/s DDR5, 512 GB–3 TB
- Local storage: 2x 3.84 TB NVMe (OS / Oracle binaries)
Exadata X11M-Z Database Server (Entry)