Dataguard: ORA-16047: DGID mismatch between destination setting and standby

In My primary alert log,

******************************************************************
LGWR: Setting 'active' archival for destination LOG_ARCHIVE_DEST_3
******************************************************************
LGWR: Error 16047 creating archivelog file 'STREAMS'
Mon Oct 15 23:58:24 IST 2012
Errors in file /u02/app/oracle/admin/PROD/bdump/prod2_lns2_16765.trc:
ORA-16047: DGID mismatch between destination setting and standby
LNS: Failed to archive log 5 thread 2 sequence 2759 (16047)
Mon Oct 15 23:58:30 IST 2012
Errors in file /u02/app/oracle/admin/PROD/bdump/prod2_arc1_11140.trc:
ORA-16047: DGID mismatch between destination setting and standby
Mon Oct 15 23:58:30 IST 2012
FAL[server, ARC1]: Error 16047 creating remote archivelog file 'STREAMS'
FAL[server, ARC1]: FAL archive failed, see trace file.
Mon Oct 15 23:58:30 IST 2012
Errors in file /u02/app/oracle/admin/PROD/bdump/prod2_arc1_11140.trc:
ORA-16055: FAL request rejected

NAME                  TYPE      VALUE
--------------------- --------- ------------------------------
log_archive_dest_3    string    SERVICE=STREAMS LGWR ASYNC NOREG
                                                ISTER VALID_FOR=(ONLINE_LOGFIL
                                                ES,PRIMARY_ROLE) DB_UNIQUE_NAM
                                                E=STREAMS

Well, my bad, I have changed the database name from TEST to STREAMS using NID, but forgot  to changed the db_unique_name.

Settings in my standby

SQL> show parameter db_unique_name

NAME                                 TYPE                             VALUE
------------------------------------ -------------------------------- ------------------------------
db_unique_name                       string                    TEST1

SQL> show parameter db_name

NAME                                 TYPE                             VALUE
------------------------------------ -------------------------------- ------------------------------
db_name                              string                           STREAMS

SQL> show parameter Instance_name

NAME                                 TYPE                             VALUE
------------------------------------ -------------------------------- ------------------------------
instance_name                        string                           STREAMS

SQL>

🙁

Change the db_unique_name and bounced the instance , resolve the issue.

SQL> show parameter db_unique_name

NAME TYPE VALUE
------------------------------------ -------------------------------- ------------------------------
db_unique_name string STREAMS

-Geek DBA