RAC_OFF:

cd $ORACLE_HOME/rdbms/lib

make -f ins_rdbms.mk rac_off
make -f ins_rdbms.mk ioracle

As oracle user, run the following. The output should be ‘0’ in case of Non-RAC.

cd $ORACLE_HOME/rdbms/lib

nm -r libknlopt.a | grep -c kcsm.o