Database startup can fail with ORA-00064 Errors with huge sga_target of over 40Gig (Doc ID 886312.1)

Last updated on MARCH 07, 2012

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.4 to 11.2.0.3 - Release: 10.2 to 11.2
This problem can occur on any platform.

Symptoms

Attempting to start the database with SGA_TARGET of 100GB (with a total of about 500GB of physical memory available) can fail with:

ORA-00064: object is too large to allocate on this O/S (1,15429280)

Changes

The SGA_TARGET instance parameter has been dynamically increased to a value higher than 40GB, like in:
SQL> alter system set sga_target=100G;
SQL> shutdown
SQL> startup

ORA-00064: object is too large to allocate on this O/S (1,15429280)

Cause

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