@techreport{haynes-nfsv4-flexfiles-v2-delta-writes-00,
    number =    {draft-haynes-nfsv4-flexfiles-v2-delta-writes-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-haynes-nfsv4-flexfiles-v2-delta-writes/00/},
    author =    {Thomas Haynes},
    title =     {{Delta-Write Extension for the Flexible File Version 2 Layout Type}},
    pagetotal = 30,
    year =      2026,
    month =     aug,
    day =       7,
    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.},
}