This blog forms part of the http://performanceGuru.com website which focuses on performance tuning UNIX-like Operating Systems (including Linux).
have released a good (but lengthy) RedBook about migrating to NFS version 4
. A brief introduction:
The goal of this IBM Redbook is to provide a technical planning reference for IT organizations considering an implementation of Network File System version 4 Protocol (NFSv4) on IBM AIX 5L, either as part of a new installation or as part of a migration from Andrew File System (AFS) or Distributed File Service (DFS).
This book includes sample migrations that can be used as a road map for existing installations of AFS and DFS.
Although ther is mention of AIX most of the content is fairly generic and of help for any platform.