Wednesday, December 19, 2012

ora-00845 memory_target not supported on this system

The Error Will be Appear like the following :
SQL> startup nomount;
ORA-00845: MEMORY_TARGET not supported on this system
 Cause :

This error comes up because you tried to use the Automatic Memory Management (AMM) feature of Oracle 11g R2. Well done, but it seems that your shared memory filesystem (shmfs) is not big enough. So let’s look at the steps necessary to enlarge your shared memory filesystem to avoid the error above.

Solution

mount -t tmpfs shmfs -o size= /dev/shm

Thank you
Osama Mustafa

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