The "Create Dump Type Backup" option (4042433)

"Dump Type Backups", introduced in NetVault:Backup 8.6.2, are a different type of Incremental or Differential backup.

Unlike the regular Incremental and Differential Backups, the Dump Type Backups can be copied using the Data Copy method (via the Secondary Copy option on the Advanced Options tab or the Plug-in for Data Copy). However, with these backups you can only restore those files that were backed up in a particular Incremental or Differential Backup..

When creating an incremental or differential backup, select the check box in the Backup Options tab to create Dump Type Incremental or Differential Backups.