The surrounding text describes the initialization parameter settings for the Data Guard configuration in this illustration. Log apply services are inactive on the Chicago primary database. The Denver logical standby database is generating redo data and storing it in local archived redo log files (configured as the LOG_ARCHIVE_DEST_1=LOCATION=/arch1/denver destination). In addition, the Denver logical standby database is storing redo data it receives from the primary database in archived redo log files (configured as the LOG_ARCHIVE_DEST_2=LOCATION=/arch2/denver destination).