oracle 11gR2 RAC EM创建过程

Oralce11.2.0.4 RAC数据库安装成功后，客户让使用EM进行集群数据库监控及管理。
其实很简单，但是搞了半天，才成功创建，问题主要出在连接不到数据库，期间重新
创建一下remove_listener问题才解决。
已开始创建时报：
SEVERE: Scan Listener is not up or database service is not regist
这个是没有设置好remote_listener参数

具体步骤如下：
1：清除旧配置信息：
emca -deconfig dbcontrol db  节点1  
emca -deconfig dbcontrol db  节点2
2：下面内容没有执行，也创建成功，在此记录以下而已

然后手动删除数据库中的相关信息：oracle用户
DROP PUBLIC SYNONYM MGMT_SEVERITY;
DROP PUBLIC SYNONYM MGMT_SEVERITY_ARRAY;
DROP PUBLIC SYNONYM MGMT_SEVERITY_OBJ;
DROP PUBLIC SYNONYM MGMT_AVAILABILITY;
DROP PUBLIC SYNONYM MGMT_CURRENT_AVAILABILITY;
DROP PUBLIC SYNONYM MGMT_CURRENT_METRICS;
DROP PUBLIC SYNONYM MGMT_CURRENT_METRIC_ERRORS;
DROP PUBLIC SYNONYM MGMT_CURRENT_SEVERITY;
DROP PUBLIC SYNONYM MGMT_SEVERITY_OBJ;
DROP PUBLIC SYNONYM MGMT_GUID_ARRAY;
DROP PUBLIC SYNONYM MGMT_GUID_OBJ;
DROP PUBLIC SYNONYM MGMT_METRICS;
DROP PUBLIC SYNONYM MGMT_METRICS_RAW;
DROP PUBLIC SYNONYM MGMT_METRICS_COMPOSITE_KEYS;
DROP PUBLIC SYNONYM MGMT_METRICS_1HOUR;
DROP PUBLIC SYNONYM MGMT_METRICS_1DAY;
DROP PUBLIC SYNONYM MGMT_METRIC_ERRORS;
DROP PUBLIC SYNONYM MGMT_METRIC_COLLECTIONS;
DROP PUBLIC SYNONYM MGMT_METRIC_THRESHOLDS;
DROP PUBLIC SYNONYM MGMT_TARGET;
DROP PUBLIC SYNONYM MGMT_TARGETS;
DROP PUBLIC SYNONYM MGMT_TARGET_PROPERTIES;
DROP PUBLIC SYNONYM MGMT_TARGET_MEMBERSHIPS;
DROP PUBLIC SYNONYM MGMT_TARGET_BLACKOUTS;
DROP PUBLIC SYNONYM MGMT_TYPE_PROPERTIES;
DROP PUBLIC SYNONYM MGMT_CURRENT_METRICS;
DROP PUBLIC SYNONYM MGMT_CURRENT_METRIC_ERRORS;
DROP PUBLIC SYNONYM MGMT_STRING_METRIC_HISTORY;
DROP PUBLIC SYNONYM MGMT_LONG_TEXT;
DROP PUBLIC SYNONYM MGMT_COLLECTION_PROPERTIES;
DROP PUBLIC SYNONYM MGMT_DELTA;
DROP PUBLIC SYNONYM MGMT_DELTA_IDS;
DROP PUBLIC SYNONYM MGMT_DELTA_ID_VALUES;
DROP PUBLIC SYNONYM MGMT_DELTA_ENTRY;
DROP PUBLIC SYNONYM MGMT_DELTA_ENTRY_VALUES;
DROP PUBLIC SYNONYM MGMT_DELTA_VALUE;
DROP PUBLIC SYNONYM MGMT_DELTA_VALUES;
DROP PUBLIC SYNONYM MGMT_NAME_VALUE;
DROP PUBLIC SYNONYM MGMT_NAME_VALUES;
DROP PUBLIC SYNONYM MGMT_JOB;
DROP PUBLIC SYNONYM MGMT_JOBS;
DROP PUBLIC SYNONYM MGMT_JOB_EXECPLAN;
DROP PUBLIC SYNONYM MGMT_JOB_EXECUTION;
DROP PUBLIC SYNONYM MGMT_JOB_EXEC_SUMMARY;
DROP PUBLIC SYNONYM MGMT_JOB_OUTPUT;
DROP PUBLIC SYNONYM MGMT_JOB_PARAMETER;
DROP PUBLIC SYNONYM MGMT_JOB_SCHEDULE;
DROP PUBLIC SYNONYM MGMT_JOB_TARGET;
DROP PUBLIC SYNONYM MGMT_AVAILABILITY;
DROP PUBLIC SYNONYM MGMT_ADMIN;
DROP PUBLIC SYNONYM MGMT_GLOBAL;
DROP PUBLIC SYNONYM MGMT_LOG;
DROP PUBLIC SYNONYM MGMT_CREDENTIAL;
DROP PUBLIC SYNONYM MGMT_PREFERENCES;
DROP PUBLIC SYNONYM MGMT_PAF_PROCS_LATEST;
DROP PUBLIC SYNONYM MGMT_PAF_JOBS;
DROP PUBLIC SYNONYM MGMT_PAF$PROCEDURES;
DROP PUBLIC SYNONYM MGMT_PAF$APPLICATIONS;
DROP PUBLIC SYNONYM MGMT_PAF$INSTANCES;
DROP PUBLIC SYNONYM MGMT_PAF$STATES;
DROP PUBLIC SYNONYM SMP_EMD_AVAIL_OBJ;
DROP PUBLIC SYNONYM SMP_EMD_TARGET_OBJ;
DROP PUBLIC SYNONYM SMP_EMD_TARGET_OBJ_ARRAY;
DROP PUBLIC SYNONYM SMP_EMD_DELETE_REC_ARRAY;
DROP PUBLIC SYNONYM EMD_MNTR;
DROP PUBLIC SYNONYM SMP_EMD_NVPAIR;
DROP PUBLIC SYNONYM SMP_EMD_NVPAIR_ARRAY;
DROP PUBLIC SYNONYM SMP_EMD_STRING_ARRAY;
DROP PUBLIC SYNONYM SMP_EMD_STRING_ARRAY_ARRAY;
DROP PUBLIC SYNONYM SMP_EMD_INTEGER_ARRAY;
DROP PUBLIC SYNONYM SMP_EMD_INTEGER_ARRAY_ARRAY;
DROP PUBLIC SYNONYM ECM_UTIL;
DROP PUBLIC SYNONYM MGMT_USER;
DROP PUBLIC SYNONYM MGMT_VIEW_UTIL;
DROP PUBLIC synonym SETEMVIEWUSERCONTEXT;
DROP PUBLIC SYNONYM MGMT_MESSAGES;
DROP ROLE MGMT_USER;
drop public synonym MGMT_TARGET_BLACKOUTS;

DROP USER MGMT_VIEW CASCADE;

DROP USER SYSMAN CASCADE;

3：在Oracle用户下测试下面连接是否成功：
sqlplus asmsnmp/123456@192.168.1.5:1521/+ASM as sysdba
4: 如果连接成功，进行EM创建
   emca -config dbcontrol db -repos create -cluster
5：登陆EM：

system/***