I-D Action: draft-haynes-nfsv4-flexfiles-v2-delta-writes-00.txt

Internet-Draft draft-haynes-nfsv4-flexfiles-v2-delta-writes-00.txt is now
available.

   Title:   Delta-Write Extension for the Flexible File Version 2 Layout Type
   Author:  Thomas Haynes
   Name:    draft-haynes-nfsv4-flexfiles-v2-delta-writes-00.txt
   Pages:   30
   Dates:   2026-08-07

Abstract:

   The Flexible File Version 2 pNFS layout type defines a chunk-oriented
   data-server protocol in which every write is a full-chunk payload.
   For workloads that make small edits to files protected by an XOR-
   based erasure encoding, this forces client-side stripe fetch, re-
   encode, and transmit on every edit, with wire amplification of three
   to four orders of magnitude per byte edited.  This document defines
   an optional extension, CHUNK_XOR_DELTA, that lets a client transmit a
   per-projection XOR delta directly to each data server holding a
   projection of the affected stripe; the data server applies the delta
   locally.  The extension is restricted to XOR-linear systematic
   encodings and XOR-affine checksums, using the existing chunk state
   machine with no new commit protocol.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-haynes-nfsv4-flexfiles-v2-delta-writes/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-haynes-nfsv4-flexfiles-v2-delta-writes-00.html

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts


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