I wonder what are possible drawbacks of the following simple backup

1. Attach an external SATA drive to workstation or additional SCSI
drive to server for storing backups.
2. Use trustee.nlm to backup/restore file rights, ownership etc.
3. Use crone to automate the process.

I assume, that NDS and DOS partition are backed up manually (small
NW5.0 and 6.5 networks with occassional changes in NDS like
adding/removing users, printers etc.).
Also I assume, that full backups are done.

The advantage of this approach is low cost (only cost of an additional
drive) and no more hassles palying with ArcServe in my case.

What are your opinions ?

Thank you,