For MacOS, you will want to use the time machine backup system that comes with the OS. I have a designated drive/partition on my NAS for my desktop and then I have an external firewire drive for my laptop that I do the backups for using time machine also.
Jason
On Dec 26, 2014, at 4:35 PM, Todd Millecam <tyggna@gmail.com> wrote:
the one laptop will access the usb drive over NFS using some native MacOS backup application