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Jul 16, 2016 · Databases

How to Rescue a Failed Exadata Database Using AMDU and DUL: Step‑by‑Step Guide

When an Exadata diskgroup fails to mount, this article walks through using AMDU to extract control, data, and log files, handling OMF and custom formats, advancing SCN, and finally opening the database, while also recommending preventive tools and regular maintenance.