Configuring automatic backup schedules
If you put multiple batch files in the same policy, they run during each automatic backup session for that policy. You may have a variety of SQL Server backup operations that you want to run on different schedules. In this case, you may want to create multiple policies each with an automatic backup schedule that is different. Then assign each batch file to the policy that uses the appropriate automatic backup schedule.
If you plan to have NetBackup perform automatic backups, or if you use Snapshot Client features, you need one or more automatic backup schedules.