RAC Instance Fails to Start With Error ORA-27504: IPC error creating OSD context

(Doc ID 1059831.1)

Last updated on MARCH 21, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 9.2.0.1 and later
Information in this document applies to any platform.

Symptoms

Attempting to start a RAC instance gives ORA-27504: IPC error creating OSD context.

SQL*Plus: Release 11.1.0.7.0 - Production on Mon Jun 29 09:47:08 2009

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Connected to an idle instance.

SQL> startup
ORA-27504: IPC error creating OSD context
SQL>



Other symptoms may include:




Changes

This error may arise after manual install, or after patch apply, or manual relink, or other change to the database home.

Cause

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