A file exit is a file that receives all the information related to its enabled events. You can log events to a file exit and a user exit.
Be aware that this file can rapidly grow in size depending on the events enabled for it. There are two versions of the file exit: binary and text. The binary file exit stores each logged event as a record, while the text file exit stores each logged event as a fixed-sized, readable line. For more information about the text file exit, see Readable text file exit (FILETEXTEXIT) format.
A user exit is an external interface in the form of an executable, user-written program. Tivoli® Storage Manager supports DLL user exits.