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Add LAYOUT_WCC to NFSv4.2's Flex File Layout Type

Document Type Expired Internet-Draft (nfsv4 WG)
Expired & archived
Authors Thomas Haynes , Trond Myklebust
Last updated 2023-10-01 (Latest revision 2023-03-30)
RFC stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Additional resources Mailing list discussion
Stream WG state In WG Last Call
Document shepherd (None)
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


The Parallel Network File System (pNFS) Flexible File Layout allows for a file's metadata (MDS) and data (DS) to be on different servers. It does not provide a mechanism for the data server to update the metadata server of changes to the data part of the file. The client has knowledge of such updates, but lacks the ability to update the metadata server. This document presents a refinement to RFC8435 to allow the client to update the metadata server to changes on the data server.


Thomas Haynes
Trond Myklebust

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)