Everythings seems just fine except when logging to the rcat database. Creating user rman and the default tablespace rcvcat failed. It seems I stil being connected to the target database instead of rcat database (using: sqlplus /nolog@rcat and then connect / as sysdba ).
I think I was connected to the target database instead.
Do you know how to fix it. And is there any way to check what database you've connected to before issueing the command create user rman ...

//Hamhey