Issue the bak ftinfo command to display the dump history of a fileset:
$ bak ftinfo -fileset name
The -fileset name option names the fileset whose dump history is to be displayed. Include the .backup extension if the backup version of the fileset was dumped.
The dump ID, parent ID, dump level, and other dump information are displayed about dumps of the indicated fileset. The following example shows part of the dump history of the user.smith.backup fileset:
$ bak ftinfo user.smith.backup
DumpID parentID lvl creation date clone date tape name
654972910 654946323 1 10/01/91 5:07 10/01/91 4:01 users.tuesday.1
654960415 654946323 1 09/30/91 5:11 09/30/91 4:16 users.monday.1
654946323 0 0 09/29/91
5:36 09/28/91 4:31 users.week.1