Post Syndicated from original https://lwn.net/Articles/898262/

The network filesystem (NFS) protocol has been with us for nearly 40 years.
While defined initially as a stateless protocol, NFS implementations have
always had to manage state, and that need has been increasingly built into
the protocol over successive revisions. The early days of NFS were
discussed, with a focus on state management, in the first part of this series. This article
completes the job with a look at the evolution of NFS since, approximately,
the beginning of this millennium.