NFSv4 Migration and Trunking: Implementation and Specification Issues
draft-ietf-nfsv4-migration-issues-15

Document Type Active Internet-Draft (nfsv4 WG)
Last updated 2018-05-19
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NFSv4                                                     D. Noveck, Ed.
Internet-Draft                                                    NetApp
Intended status: Informational                                 P. Shivam
Expires: November 20, 2018                                           IBM
                                                                C. Lever
                                                                B. Baker
                                                                  ORACLE
                                                            May 19, 2018

 NFSv4 Migration and Trunking: Implementation and Specification Issues
                  draft-ietf-nfsv4-migration-issues-15

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
   server endpoints to use to access a file system.  The focus of the
   discussion, which relates to multiple minor versions, is on defining
   the appropriate clarifications and corrections for existing
   specifications.

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 November 20, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Noveck, et al.          Expires November 20, 2018               [Page 1]
Internet-Draft              nfsv4-migr-issues                   May 2018

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   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.  Issues that Apply to Multiple Versions and their Resolution .   7
     3.1.  Issue Summary . . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  Resolution of Multi-Version Issues  . . . . . . . . . . .   8
       3.2.1.  Providing Trunking Discovery  . . . . . . . . . . . .   9
       3.2.2.  Interaction of Trunking and Migration . . . . . . . .  10
       3.2.3.  Dealing with Multiple Connection Types  . . . . . . .  12
   4.  NFSv4.0 Issues  . . . . . . . . . . . . . . . . . . . . . . .  13
     4.1.  Core NFSv4.0 Migration Issues . . . . . . . . . . . . . .  13
     4.2.  Resolution of Core Migration Protocol Difficulties in
           NFSv4.0 . . . . . . . . . . . . . . . . . . . . . . . . .  14
     4.3.  Additional NFSv4.0 Issues . . . . . . . . . . . . . . . .  15
     4.4.  Resolution of Additional NFSv4.0 Issues . . . . . . . . .  15
       4.4.1.  Resolution of NFSv4.0 Issues with Multiple Connection
               Types . . . . . . . . . . . . . . . . . . . . . . . .  17
   5.  Issues for NFSv4.1 and Beyond . . . . . . . . . . . . . . . .  18
     5.1.  Issues to Address for NFSv4.1 . . . . . . . . . . . . . .  18
       5.1.1.  Addressing State Merger in NFSv4.1  . . . . . . . . .  19
       5.1.2.  Addressing pNFS Relationship with Migration . . . . .  20
       5.1.3.  Addressing Server_owner Changes in NFSv4.1  . . . . .  20
       5.1.4.  Addressing Confirmation Status of Migrated
               Client IDs in NFSv4.1 . . . . . . . . . . . . . . . .  21
       5.1.5.  Addressing Changes in Trunking Configuration  . . . .  23
       5.1.6.  Addressing Session Migration in NFSv4.1 . . . . . . .  23
       5.1.7.  Dealing with Multiple Connection Types in NFSv4.1 . .  23
     5.2.  Possible Resolutions for NFSv4.1 Protocol Issues  . . . .  24
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