EM dbconsole for 11gR2 Clustered environment

Hi There,
     Here we have steps for configuring 11gR2 dbconsole for a clustered environment.
Before configuring EM dbconsole, we need to follow pre-configuration steps.

Preconfiguration Steps:
1. set ORACLE_UNQNAME for your cluster environment
  Ex: export ORACLE_UNQNAME=TESTDB

Check for DBUNIQUE name
=======
SELECT name, db_unique_name FROM v$database;

db user passwd unlock
=====================
alter user SYSMAN identified by SYSMAN account unlock;
alter user DBSNMP identified by DBSNMP account unlock;


alter user sys identified by system;



export GRID HOME AND SID FOR ASM
==========
sqlplus sys/system as sysasm
create user asmsnmp identified by asmsnmp;
grant sysdba to asmsnmp;
grant sysasm to asmsnmp;
grant sysoper to asmsnmp;


SQL>select * from gv$pwfile_users;


INST_ID USERNAME          SYSDB SYSOP SYSAS
---------- ------------------------------ ----- ----- -----
         2 SYS                            TRUE  TRUE  TRUE
         2 ASMSNMP                TRUE  TRUE  TRUE
         1 SYS                            TRUE  TRUE  TRUE
         1 ASMSNMP                TRUE  TRUE  TRUE

passwd file for oracle_home/dbs for sysuser
=================
orapwd file=orapwEHISKOL1 password=SYSTEM entries=5 force=y ignorecase=y
orapwd file=orapwEHISKOL2 password=SYSTEM entries=5 force=y ignorecase=y

inside grid_home/dbs
orapwd file=orapw+ASM password=SYSTEM entries=5 force=y ignorecase=y

Check dbconsole status
===================
emctl status dbconsole

if you will find dbconsole running on single node deconfig it or drop the dbconsole

$emca -deconfig dbcontrol db -repos drop

Now time to configure EM dbconsole for clustered environment
$ emca -config dbcontrol db -repos create -cluster

If EM is already available then recreate it by this command

$emca -config dbcontrol db -repos recreate -cluster (This will drop and create the repository again)

It will ask

Db Unique Name:
Service to connect DB:
GRid Listener Home : /u01/app/grid 
SYS Passwd:
DBSNMP passwd:
SYSMAN Passwd :
ASMSNMP Passwd :

We have to provide correct info inorder to get it done.

If it will be successful, it will provide you a link to connect to dbconsole.

We need to add RAC node names in our window hostfiles to access dbconsole on browser.


If any doubts please feel free to ask.