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BANNER


Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit
Production PL/SQL Release 11.2.0.2.0 - Production CORE 11.2.0.2.0
Production TNS for 64-bit Windows: Version 11.2.0.2.0 - Production
NLSRTL Version 11.2.0.2.0 - Production Windows Server 2008 R2
Enterprise
6.00 GB RAM 64-bit operating system

Current memory settings

*.memory_max_target=1536M
*.memory_target=1024M

When I try to increase the memory_max_target to 2.5 GB I get the below error on startup

ORA-27102: out of memory OSD-00022: additional error information O/S-Error: (OS 1450) Insufficient system resources exist to complete the requested

SQL> startup pfile='C:\oracle\app\product\11.2.0\dbhome_1\database\INITorcl.ORA';

Could some one shed some light.

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How much real memory free does Windows task manager show, before you start up Oracle? If less than 2.5 GB, that's the problem. You can try increasing memory_max_target slowly from its current value, say in 256 MB increments, until it errors again, then I'd back it off by maybe 512 MB to give some headroom.

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