The NFS Version 4 working group is tasked with the evolution and maintenance of the distributed file system protocol NFS (The Network File System) and associated protocols (RPC - Remote Procedure Call). NFS remains popular as a widely used open protocol for file sharing in a heterogeneous network. With further adoption being driven by emerging use cases of large scale data analytics and AI/ML that look to NFS and its pNFS parallel I/O support to provide a shared large scale data store.
The working group has published some minor extensions to v4.2 recently with a few more in progress: * RFC9737 - Reporting Errors in NFSv4.2 via LAYOUTRETURN * RFC edit - Extending the Opening of Files in NFSv4.2 * RFC edit queue - Add LAYOUT_WCC to NFSv4.2's Flex File Layout Type The working group is deciding to define which minor versions of NFS to continue supporting. Currently all the following are "supported" versions v4.0, v4.1, and v4.2. Versions predating IETF adoption of the protocol (v3) are still used in production as well, but out of scope of IETF control. The working group is discussing if it should continue support for v4.0 or make the last set of updates final and freeze the definition. Drafts for fixing internationalization (draft-ietf-nfsv4-internationalization-11) and a general issue fixing draft (draft-ietf-nfsv4-rfc5661bis-09) are delayed because of this debate. Various drafts are blocked waiting for some minor resolutions in implementation and feedback and the version support resolution, include : draft-rmacklem-nfsv4-posix-acls-10 and draft-dnoveck-nfsv4-security-11. New work is in the area of distributed erasure codes for flex file parallel data serving. IETF-122 agenda items: Mapping RFCs and versions across the various v4.x minor versions. Security document RFC5661bis document We are always interested in more new members to come support NFS. Your friendly neighborhood NFS V4 co-chairs, Chris Inacio and Brian Pawlowski
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