I have 2 NAS boxes 1 Promise and 1 WD Sharespace.
Currently we use WD for storing our data (around 500gb).
I would like to backup this data to my other NAS box (promise) every night.
Because there is too much data (500gb) i would like to do 1 full backup and all others would be incremental or differential.
Can you suggest a program or a way to do this?