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Not Able To Start The Database, fails with ORA-27125: unable to create shared memory segment (Doc ID 2242978.1)

Last updated on OCTOBER 08, 2022

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.1 and later
Oracle Database Cloud Schema 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
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

Startup upgrade fails with error ORA-27125:

 

 

Changes

 No change 

Cause

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