nfs failover in openbsd

[Per-Erik Persson]

Earlier on the list there have been discussions on setting up failover 
solutions with carp. I think most people agree that carp does a 
wonderful job.
However there seems to be problems with nfs servers that needs a little 
bit more work.
I can find information about nfsv4 and syncing files with rsync. But no 
followups saying that it actually works and how it should be done.

Is it possible to get it up and work proberly in OpenBSD?
I have seen some linux solutions but they look really ugly.