The DBA history contains information about past administrative actions. The information is taken from DBM log files, database kernel log files and third-party backup tool log files.
In non-SAP systems with database version <7.9, the DBA history was not enabled by default. If you have upgraded your database to version 7.9 from an older version, you can enable the DBA history using the following DBM command:
dbm_configset DBADTL 1
For more information, see Database Manager CLI, dbm_configset.
Database Studio, Displaying the History of Administration Actions (DBA History)