Prepare the Mining Database to Accept Redo from the Source Databases
Because redo data is being accepted in the standby redo logs of the downstream mining database, the appropriate number of correctly sized standby redo logs must exist. If you did not configure the standby logs, see Create the Standby Redo Log Files.
- At the downstream mining database, set the second archive log
destination in the
LOG_ARCHIVE_DEST_n
initialization parameter as shown in the following example. This is needed to handle archive standby redo logs.ALTER SYSTEM SET LOG_ARCHIVE_DEST_2='LOCATION=/home/arc_dest/srl_dbms3 VALID_FOR=(STANDBY_LOGFILE,PRIMARY_ROLE)'
- Enable the
LOG_ARCHIVE_DEST_STATE_2
initialization parameter that corresponds with theLOG_ARCHIVE_DEST_2
parameter as shown in the following example:ALTER SYSTEM SET LOG_ARCHIVE_DEST_STATE_2=ENABLE
- Set
DG_CONFIG
at the downstream mining database to accept redo data from all of the source databases.ALTER SYSTEM SET LOG_ARCHIVE_CONFIG='DG_CONFIG=(dbms1, dbms2, dbms3, dbmscap)'