aix平台上，從 rac 環境 tar 過來的oracle軟件，直接解包到新機器上，目標環境是單機，則需要關閉 rac 選項。
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.
