Hi Linus,
Last time I set it up it was on NT but I just checked and I think it may still be an option. looks like It's even supporting v4.1 in 2022 if I read this right.
https://learn.microsoft.com/en-us/windows-server/storage/nfs/nfs-overview
As I recall and that's a real wildcard it doesn't matter what the server filesystem is, if it has an NFS driver it's a network file system and all translation, rights mappings etc. etc. is handled by the linux driver or windows MMC plug-in so everybody sees it their way. Think you can even run like 2, 3 and 4 at the same time while migrating or waiting for vendor catch-up.
Interesting ... So NFSv4 is a drop-in replacement for DFS? That would be good news. The DFS filesystem namespace aggregation works well, but I never got the replication working well; "writes" would unpredictably fail and I think I had other problems but I simply stopped using the replication feature and did daily backups instead. In my mind there is a lot of room for improvement in DFS but it never occurred to me to look for a replacement.

I don't know if DFS is the "freelancer" in my observation or the "Off-line" files is, and it is not enough of a problem for me to undertake the effort to run experiments to find out, although it sounds like I could drop NFSv4 into the role I have for DFS and not be any worse off. Or I could go take a nap.
--
Chris.

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