NFS Version 4 Minor Version 2
draft-ietf-nfsv4-minorversion2-19

NFSv4                                                     T. Haynes, Ed.
Internet-Draft                                                    NetApp
Intended status: Standards Track                          March 14, 2013
Expires: September 15, 2013

                     NFS Version 4 Minor Version 2
                 draft-ietf-nfsv4-minorversion2-19.txt

Abstract

   This Internet-Draft describes NFS version 4 minor version two,
   focusing mainly on the protocol extensions made from NFS version 4
   minor version 0 and NFS version 4 minor version 1.  Major extensions
   introduced in NFS version 4 minor version two include: Server-side
   Copy, Application I/O Advise, Space Reservations, Sparse Files,
   Application Data Blocks, and Labeled NFS.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in RFC 2119 [RFC2119].

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on September 15, 2013.

Copyright Notice

   Copyright (c) 2013 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

Haynes                 Expires September 15, 2013               [Page 1]
Internet-Draft                   NFSv4.2                      March 2013

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  5
     1.1.   The NFS Version 4 Minor Version 2 Protocol  . . . . . . .  5
     1.2.   Scope of This Document  . . . . . . . . . . . . . . . . .  5
     1.3.   NFSv4.2 Goals . . . . . . . . . . . . . . . . . . . . . .  5
     1.4.   Overview of NFSv4.2 Features  . . . . . . . . . . . . . .  6
       1.4.1.  Server-side Copy . . . . . . . . . . . . . . . . . . .  6
       1.4.2.  Application I/O Advise . . . . . . . . . . . . . . . .  6
       1.4.3.  Sparse Files . . . . . . . . . . . . . . . . . . . . .  6
       1.4.4.  Space Reservation  . . . . . . . . . . . . . . . . . .  6
       1.4.5.  Application Data Hole (ADH) Support  . . . . . . . . .  6
       1.4.6.  Labeled NFS  . . . . . . . . . . . . . . . . . . . . .  6
     1.5.   Differences from NFSv4.1  . . . . . . . . . . . . . . . .  7
   2.  Minor Versioning . . . . . . . . . . . . . . . . . . . . . . .  7
   3.  Server-side Copy . . . . . . . . . . . . . . . . . . . . . . . 10
     3.1.   Introduction  . . . . . . . . . . . . . . . . . . . . . . 10
     3.2.   Protocol Overview . . . . . . . . . . . . . . . . . . . . 11
       3.2.1.  Overview of Copy Operations  . . . . . . . . . . . . . 11
       3.2.2.  Locking the Files  . . . . . . . . . . . . . . . . . . 12
       3.2.3.  Intra-Server Copy  . . . . . . . . . . . . . . . . . . 12
       3.2.4.  Inter-Server Copy  . . . . . . . . . . . . . . . . . . 14
       3.2.5.  Server-to-Server Copy Protocol . . . . . . . . . . . . 18
     3.3.   Requirements for Operations . . . . . . . . . . . . . . . 19
       3.3.1.  netloc4 - Network Locations  . . . . . . . . . . . . . 20
       3.3.2.  Copy Offload Stateids  . . . . . . . . . . . . . . . . 20
     3.4.   Security Considerations . . . . . . . . . . . . . . . . . 21
       3.4.1.  Inter-Server Copy Security . . . . . . . . . . . . . . 21
   4.  Support for Application IO Hints . . . . . . . . . . . . . . . 29
   5.  Sparse Files . . . . . . . . . . . . . . . . . . . . . . . . . 29
     5.1.   Introduction  . . . . . . . . . . . . . . . . . . . . . . 29
     5.2.   Terminology . . . . . . . . . . . . . . . . . . . . . . . 30