Audit Database overview for PI Data Archive

The PI Audit Database contains records of changes made to Data Archive data. The following changes are recorded:

• Editing and deleting time-series data, such as values in the archive files.

• Creating, deleting, and editing configuration information on time-series data. Examples include PI point configuration data and access permissions for secure objects.

  Note: Normal operations, such as interfaces adding data, are not audited.

The PI Audit Database consists of three distinct files. Each file represents a PI subsystem:

• Base subsystem: pibasessAudit.dat

• Archive subsystem: piarchssAudit.dat

• Snapshot subsystem: pisnapssAudit.dat

All files for the online PI Audit Database are stored in the PI\log directory.

For more information on the structure of the PI Audit Database, see Audit Database file contents.