When NetBackup uses Fast File Resync

If the requirements are met, NetBackup automatically attempts Fast File Resync first.

See Notes on Fast File Resync (FFR).

If Fast File Resync cannot be used for a file, the restore of that file takes place in the standard manner, without Fast File Resync . That is, all file data is copied from the snapshot to the primary file system. The NetBackup progress log indicates how many files were re-synchronized, and how many files that could not be re-synchronized were restored by means of tar.