RACF® audit data is a record of an installation's security relevant events. This data is used to verify the effectiveness of an installation's security policy, determine whether the installation's security objectives are being met, and identify unexpected security relevant events.

The RACF SMF data unload utility (IRRADU00) enables installations to create a sequential file from the security relevant audit data. The sequential file can be used in several ways: viewed directly, used as input for installation-written programs, manipulated with sort/merge utilities, output to an XML-formatted file for viewing on a web browser, or uploaded to a database manager (for example, DB2®) to process complex inquiries and create installation-tailored reports. It is not intended to be used directly as input to RACF commands.