NFSv4 Migration and Trunking: Implementation and Specification Issues
draft-ietf-nfsv4-migration-issues-13

Document Type Active Internet-Draft (nfsv4 WG)
Last updated 2017-05-16
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NFSv4                                                     D. Noveck, Ed.
Internet-Draft                                                    NetApp
Intended status: Informational                                 P. Shivam
Expires: November 17, 2017                                      C. Lever
                                                                B. Baker
                                                                  ORACLE
                                                            May 16, 2017

 NFSv4 Migration and Trunking: Implementation and Specification Issues
                  draft-ietf-nfsv4-migration-issues-13

Abstract

   This document discusses a range of implementation and specification
   issues concerning features related to the use of location-related
   attributes in NFSv4.  These include migration, which transfers
   responsibility for a file system from one server to another, and
   trunking which deals with the discovery and control of the set of
   network addresses to use to access a file system.  The focus of the
   discussion, which relates to multiple minor versions, is on providing
   appropriate clarification and correction of existing specifications.

Status of This Memo

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   This Internet-Draft will expire on November 17, 2017.

Copyright Notice

   Copyright (c) 2017 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
   (http://trustee.ietf.org/license-info) in effect on the date of

Noveck, et al.          Expires November 17, 2017               [Page 1]
Internet-Draft              nfsv4-migr-issues                   May 2017

   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Language  . . . . . . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Requirements Language . . . . . . . . . . . . . . . . . .   4
     2.2.  Use of Normative Terms  . . . . . . . . . . . . . . . . .   4
     2.3.  Terminology Used in this Document . . . . . . . . . . . .   5
   3.  Multi-version Issues and Their Resolution . . . . . . . . . .   6
     3.1.  Multi-Version Issues  . . . . . . . . . . . . . . . . . .   6
     3.2.  Resolution of Multi-Version Issues  . . . . . . . . . . .   7
       3.2.1.  Providing Trunking Discovery  . . . . . . . . . . . .   7
       3.2.2.  Interaction of Trunking and Migration . . . . . . . .   9
   4.  NFSv4.0 Issues  . . . . . . . . . . . . . . . . . . . . . . .  11
     4.1.  Core NFSv4.0 Migration Issues . . . . . . . . . . . . . .  11
     4.2.  Resolution of Core Migration Protocol Difficulties in
           NFSv4.0 . . . . . . . . . . . . . . . . . . . . . . . . .  12
     4.3.  Additional NFSv4.0 Issues . . . . . . . . . . . . . . . .  12
     4.4.  Resolution of Additional NFSv4.0 Issues . . . . . . . . .  12
   5.  Issues for NFSv4.1  . . . . . . . . . . . . . . . . . . . . .  14
     5.1.  Issues to Address for NFSv4.1 . . . . . . . . . . . . . .  14
       5.1.1.  Addressing State Merger in NFSv4.1  . . . . . . . . .  15
       5.1.2.  Addressing pNFS Relationship with Migration . . . . .  15
       5.1.3.  Addressing Server_owner Changes in NFSv4.1  . . . . .  16
       5.1.4.  Addressing Confirmation Status of Migrated
               Client IDs in NFSv4.1 . . . . . . . . . . . . . . . .  17
       5.1.5.  Addressing Changes in Trunking Configuration  . . . .  18
       5.1.6.  Addressing Session Migration in NFSv4.1 . . . . . . .  18
     5.2.  Possible Resolutions for NFSv4.1 Protocol Issues  . . . .  19
       5.2.1.  Client ID Confirmation Issues . . . . . . . . . . . .  19
       5.2.2.  Dealing with Multiple Location Entries  . . . . . . .  20
       5.2.3.  Migration and pNFS  . . . . . . . . . . . . . . . . .  22
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