I have 2 NAS in different physical locations: a DS718+ is the primary server, and a DS223 as an off-site backup. I am using ShareSync to backup the all the content on the primary to the remote, on a download only basis (identical folder/sub-folder structure & naming). I set Emby's metadata path to save to a shared folder on the primary NAS (separate from the media content itself), so it gets backed up to the remote also. I bit the bullet & signed up for Emby Premier, so I am using Emby's Backup Plugin to back up the configuration to a sub-folder in the same shared folder as the metadata.
I haven't tried this yet, but I assume that if the paths/folder structure/naming & content are the same on both servers, if I do a restore from one of the configuration backups from the primary onto the destination, that Emby will "behave" the same way on both NAS's. Is this correct?
Might there be any conflicts created by having the same server info active on 2 different NAS? I would not be running them at the same time. The backup would only be working as a server if the primary were down for maintenance, etc.