OERR: ORA-00227 corrupt block detected in controlfile: (block %s, # blocks %s) Primary Note / Troubleshooting, Diagnostic and Solution (Doc ID 48808.1)

Last updated on JUNE 09, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 8.0.6.0 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database 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 article provides information about error ORA-00227 and possible actions.

Scope

This note is intended for general audience as initial starting point for beginning diagnosis of ORA-00227.

Details

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In this Document

Identify if Bug 20324049 may be causing the error ORA-227

Take a backup of the control files as they are now

Identify which control file is failing

Execute DBVERIFY on all Control Files

Solution 1. Use another mirror copy of the control file

Solution 2. Recreate the control file

Solution 3. Restore a backup of the control file and apply media recovery

If the database is on IBM AIX, make sure to review the issue described in <Note 2237498.1>

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