Re: Copy by task manager (WIN) to (LIN) and "No Overwriting"
                Use synchronization instead:
    
The
        synchronize remote -criteria=none -filemask=PA4_C3_APP_STD_05* R:\Backups /veeamxfsrepo/backups/PA4_C3_APP_STD_05
The
-criteria=none makes it transfer nonexisting files only.