An exclude list can indicate a directory for exclusion, while the client uses an include list to override the exclude list. NetBackup traverses the excluded directories if necessary, to satisfy the client's include list.
Assume the following settings for a Windows client:
The backup policy backup selection list indicates ALL_LOCAL_DRIVES. When a scheduled backup runs, the entire client is backed up.
The entire client is also backed up if the backup selection list consists of only: /
The exclude list on the client consists of only: *
An exclude list of * indicates that all files are excluded from the backup.
However, since the include list on the Windows client includes the following file: C:\WINNT, the excluded directories are traversed to back up C:\WINNT.
If the include list did not contain any entry, no directories are traversed.
Because the include list specifies full paths and the exclude list excludes everything, NetBackup replaces the backup selection list with the client's include list.