The backup policy contains the most numerous and important instructions
on how BRMS will perform your backups. The key parameters on this
display provide BRMS with the following information:
Type of backup (full or incremental).
Days on which to perform full or incremental backups.
Type of incremental backup (cumulative or noncumulative).
Whether BRMS should save your access paths during save processing.
Ability to append data to the end of existing files or begin a
new volume as needed.