FAT Audit Files

FAT creates an audit file to contain the captured data for each file being audited. The format of this audit file is composed of the audited fields and some extra tracking information. In order to capture and store data modifications, a database trigger is created for every monitored file. Audit files can grow very large over time. Splitting audit files into smaller parts, known as partitions, solves this problem. Partitions can be removed manually if the history data is no longer necessary. Since Field Audit Trail can affect performance of M3 BE transactions negatively, you must be aware of what selections you have made. Only audit fields that you actually have a proven need to audit.

Note: 

It extremely important to monitor space used in filegroups where audit tables are located.