I have a QNAP SAS - of different designs - at distant locations. I would like to set up a synchronization for both so that the data can still be accessed in the event of a failure (worst case).
At both locations, storage is done on the respective NAS.
Is there documentation for this?
You either want the sync of two NAS (bad idea if both NAS are worked on at both locations) or a one way backup.
Have you looked into a plain site2site VPN (via routers) and the usage of HBS3?