Everyday you may be wondering what that “NEW_STREAM” has to do in a “Backup Selection” list. Here is why:

NEW_STREAM directive is used to manually start another stream of backup withing a backup selection. You add “NEW_STREAM” directive first, then you add your selection after this directive.

When a backup starts with this policy, it will create a new backup stream for every NEW_STREAM line, and backup the selection in parallel.

Reference : http://seer.entsupport.symantec.com/docs/267291.htm