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Network File System (NFS) Direct Data Placement (RFC5667) Disclosure Number: IPCOM000193096D
Original Publication Date: 2010-Jan-01
Included in the Prior Art Database: 2010-Feb-10
Document File: 20 page(s) / 24K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

T. Talpey: AUTHOR [+1]


The Remote Direct Memory Access (RDMA) Transport for Remote Procedure Call (RPC) [RFC5666] allows an RPC client application to post buffers in a Chunk list for specific arguments and results from an RPC call. The RDMA transport header conveys this list of client buffer addresses to the server where the application can associate them with client data and use RDMA operations to transfer the results directly to and from the posted buffers on the client. The client and server must agree on a consistent mapping of posted buffers to RPC. This document details the mapping for each version of the NFS protocol [RFC1094] [RFC1813] [RFC3530] [RFC5661].

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 12% of the total text.

Internet Engineering Task Force (IETF)                         T. Talpey Request for Comments: 5667                                  Unaffiliated Category: Standards Track                                   B. Callaghan ISSN: 2070-1721                                                    Apple                                                             January 2010

             Network File System (NFS) Direct Data Placement


   This document defines the bindings of the various Network File System    (NFS) versions to the Remote Direct Memory Access (RDMA) operations    supported by the RPC/RDMA transport protocol.  It describes the use    of direct data placement by means of server-initiated RDMA operations    into client-supplied buffers for implementations of NFS versions 2,    3, 4, and 4.1 over such an RDMA transport.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Copyright Notice

   Copyright (c) 2010 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Talpey & Callaghan           Standards Track                    [Page 1]
 RFC 5667                NFS Direct Data Placement           January 2010

    This document may contain material from IETF Documents or IETF    Contributions published or made publicly available before November    10, 2008.  The person(s) controlling the copyright in some of this    material may not have granted the IETF Trust the right to allow    modifications of such material outside the IETF...