Exadata - Database reports corrupted blocks errors where content of blocks have pattern BADFDAT
(Doc ID 1579291.1)
Last updated on JULY 17, 2023
Applies to:
Oracle Exadata Storage Server Software - Version 11.2.3.2.1 to 11.2.3.3.1 [Release 11.2]Oracle Database - Enterprise Edition - Version 11.2.0.2 to 12.1.0.2 [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.
Purpose
This document is created to educate community about the introduction of blocks with "BADFDAT" string on systems using Automatic Storage Managment.
Scope
The feature described in this document is a generic Automatic Storage Management feature for disk groups configured in Normal or High redundancy
In Exadata, this feature can be triggered because failures on HardDisks. Also, failures on FlashDisks could affect the system if storage cells are run with FlashCacheMode in WriteBack.
Details
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