The archiver process (dmfacp) removes completed transactions from the transaction log file and, for journaled databases, writes them to the corresponding journal files for the database. Each database has its own journal files, which contain a record of all the changes made to the database after the last checkpoint was taken.

The archiver process "sleeps" until the last user exits the database or, if specified, the acp_timer interval has occurred. acp_timer is a Recovery Server parameter in config.dat that defines the archiver cycle interval.