Prefered Credentials error in OEM

Question

The "Logon as a batch job" as been set against USERX who is also part of
the ORA_DBA group. Also, USERX was the one who performed the installation
of Oracle 9iR2. When I set my "Prefered Credentials" I am using a specific
unique one for a individual DB. My values are as folows:
username: USERX
password: PASSWORD
confirm password: PASSWORD
role: SYSDBA (I even tried NORMAL).
When I save these settings and I try and run basically any data management
for backup management, I always get the following error:
"The wizard can not be launched because the prefered credentials for node ABC are either not set or invalid. "
What's going on?!?!?!?

Answer 1

Raman,
In the OEM you can have databases and nodes. The databases credentials expect the username/password created in database - the one you would've used when you log in using sqlplus. the node credentials require the os username/password - the one you would've used when you log into your server.
Check figure 1.15 at
http://download-east.oracle.com/docs/html/A96670_01/ch_conso.htm#7136
I suspect the "userx" is the OS account. You should enter username/password for the target_name "ABC", target type - "Node"
The database username/password/role you should enter for the target_name "Your database name" , target type - "Database"
Mike