10g oem configuration
(1) Check whether your database is registered with Enterprise Manager or not, using following command: posdbprod21:oracle> emctl status dbconsole OC4J Configuration issue. /oracle/app/oracle/product/10.1/oc4j/j2ee/OC4J_DBConsole_posdbprod21_CIF not found. posdbprod21:oracle> This means database is not registered with OEM. (2) Remember DBCA and other java interfaces use /vat/opt/oracle/oratab file to find the number of oracle instances instaled on that server….