aix平台上，从 rac 环境 tar 过来的oracle软件，直接解包到新机器上，目标环境是单机，则需要关闭 rac 选项。

　　RAC OFF

　　1. Login as the Oracle software owner and shutdown all database instances on all nodes in the cluster.

　　2. cd $ORACLE_HOME/rdbms/lib

　　3. make -f ins_rdbms.mk rac_off

　　If this step did not fail with fatal errors, proceed to step 4.

　　4. make -f ins_rdbms.mk ioracle

　　Note: If these steps fail with a Fatal Error, then you will need to open a Service Request and submit these errors to Oracle Support for analysis.