I was just reading this thread for informational purposes only. Fortunately, I do not have any current need to replace my media server. My Synology NAS 218+ is only 9 months old, so hopefully there's a lot of life left in it before I even need to think about a replacement, or restoring the DVR storage directory to a new NAS.
But with that said, it seems it would be nice (whenever the developers may have time) to provide detailed (step by step) instructions for migration from an old server to a new one based on the various configurations and migrations users may desire.
For example, when I ultimately replace my Synology 218+ in the future, I suspect I would go with another Synology NAS. And given that Synology uses the Disk Station Manager (DSM) on all their NAS devices, wouldn't this type of migration be (just as easily solved) by using Control Panel > Update & Restore to immediately back up system configurations to a local computer or an external hard drive? In this way, a Synology user (for example) could later restore all their settings at a later date on a new Synology? Again, wouldn't it (or maybe I should say "couldn't it" be made to be that easy? I am only asking because I really don't know with media servers.
Just my thoughts here on this topic. I want to think (hope) of it as being just that simple (and similar) as I know PC Windows migrations can be. Of course, I realize a NAS is a different device versus a PC, but hoping the analogy I am using is applicable. Any insight from others is welcomed here.