ORA-16053: DB_UNIQUE_NAME my_dr, is not in the Data Guard

SQL> alter system set log_archive_dest_1='LOCATION=USE_DB_RECOVERY_FILE_DEST DB_UNIQUE_NAME=my_d, valid_for=(ALL_LOGFILES, ALL_ROLES)' sid='*'; alter system set log_archive_dest_1='LOCATION=USE_DB_RECOVERY_FILE_DEST DB_UNIQUE_NAME=my_dr valid_for=(ALL_LOGFILES, ALL_ROLES)' sid='*' * ERROR at line 1: ORA-02097: parameter cannot be modified because specified value is invalid ORA-16053: DB_UNIQUE_NAME my_dr, is not in the Data Guard Configuration