Names on 11g Data Guard
Primary DB and Physical Standby DB on two separated server boxes.
There is one instance on one DB.
On 9i DataGuard configuration, I used same DB name (instance_name) on both of primary and standby. On each server, pseudonym as service name defined tnsname.ora indicated another DB. It worked very well. Also, I didnot need to convert any DB files directories during switchover.
I was confused on Oracle 11g Dataguard configurating...
db_unique_name
db_name
instance_name
service name in tnsnames.ora
1. Can db_unique_name, db_name and instance_name are same on both DBs?