Starting the Database with SGA_TARGET set Fails with ORA-27123 (Doc ID 552633.1)

Last updated on DECEMBER 06, 2016

Applies to:

Oracle Server - Enterprise Edition - Version 10.2.0.3 and later
Oracle Solaris on SPARC (64-bit)
***Checked for relevance on 18-Nov-2010***


Symptoms

Starting the database with SGA_TARGET set to a non-zero value fails like below:

SQL> startup
ORA-27123: unable to attach to shared memory segment
SVR4 Error: 22: Invalid argument
Additional information: 1
Additional information: 4722502

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms