Network File System Version 4 (nfsv4) ------------------------------------- Charter Last Modified: 2008-08-22 Current Status: Active Working Group Chair(s): Brian Pawlowski Spencer Shepler Transport Area Director(s): Magnus Westerlund Lars Eggert Transport Area Advisor: Lars Eggert Technical Advisor(s): Leif Johansson Mailing Lists: General Discussion:nfsv4@ietf.org To Subscribe: https://www1.ietf.org/mailman/listinfo/nfsv4 Archive: http://www.ietf.org/mail-archive/web/nfsv4/index.html Description of Working Group: The objective of this working group is to advance the state of NFS technology by producing specifications to extend the original NFS Version 4 work (RFC 3010) to provide additional capabilities, as described below. o NFS version 4 Advance the protocol along the standards track, coordinating the development of test suites to provide a high level of implementation quality. The ONC RPC standards that NFSv4 references must also be advanced. This includes work to make NFSv4 and the underlying ONC RPC protocol compatible with IPv6. Specifically, we will advance RFC 3010, RFC 1831, RFC 1833 and RFC 2203 to Draft Standard. The working group will help advance related security RFCs, specifically through the definition of a method to advance APIs. o Replication and Migration The original working group defined a mechanism for NFS clients and servers to support replication and migration of data transparently to an application. Left undefined in the initial work was the server back end migration and replication mechanism. The working group will produce a draft submission of a replication/migration protocol that supports NFS Version 4 clients - needed to create and maintain replicated filesystems as well as migrating filesystems from one location to another - and servers for consideration as Proposed Standard. o Management The working group will produce a draft submission for consideration as Proposed Standard of a management MIBs to provide better management and administration capabilities for NFS and ONC RPC. o Minor Versions NFS Version 4 contains within it the capability for minor versioning. Some discussions within the working group suggest addressing additional requirements over the original charter. The WG will work to identify additional requirements for NFSv4 and determine if they are appropriate and worthwhile for a minor version. This work may lead to proposals for additional work items. If it does a specific proposal to add these work items to the charter will be forwarded to the IESG and IAB. o RDMA/RDDP enabling The performance benefit of RDMA/RDDP transports in NFS-related applications, by reducing the overhead of data and metadata exchange, has been demonstrated sufficiently such that the working group will pursue in parallel enabling NFS and RPC over the transport defined by the RDDP working group. The WG will restrict its initial activities to defining the problem statement and specifying the requirements for possible extensions to RPC and NFS (in the context of a minor revision). Goals and Milestones: Done Issue strawman Internet-Draft for v4 Done Submit Initial Internet-Draft of requirements document Done Submit Final Internet-Draft of requirements document Done AD reassesses WG charter Done Submit v4 Internet-Draft sufficient to begin prototype implementations Done Begin Interoperability testing of prototype implementations Done Submit NFS version 4 to IESG for consideration as a Proposed Standard. Done Conduct final Interoperability tests Done Conduct full Interoperability tests for all NFSv4 features Done Update API advancement draft Done Form core design team to work on NFS V4 migration/replication requirements and protocol Done Submit revised NFS Version 4 specification (revision to RFC 3010) to IESG for consideration as a Proposed Standard Done Strawman NFS V4 replication/migration protocol proposal submitted as an ID Mar 2003 ADs to submit API advancement internet draft as informational RFC (needed to advance GSSAPI to Draft Standard to allow advancement of NFS Version 4) Mar 2003 Continued interoperability testing of NFS Version 4 Apr 2003 Internet draft on NFS V4 migration/replication requirements Apr 2003 AD review of NFS V4 migration/replication requirements draft Apr 2003 Creation of internet draft on ONC RPC MIB Apr 2003 Revision of internet draft on NFS MIB Apr 2003 Draft problem statement I-D for NFS/RPC/RDDP submitted May 2003 Document full Interoperability tests for all NFSv4 features Jun 2003 Depending on results of AD review of NFS Version 4 migration/replication requirements document, review scope of task Jun 2003 Submit related Proposed Standards required by NFS Version 4 for consideration as Draft Standards to IESG - RFCs 1831, 1833, 2203, 2078, 2744, RFC 1964, & 2847 Jun 2003 Draft requirements document I-D for NFS/RPC/RDDP submitted Jun 2003 Submit ONC RPC and NFS MIBs to IESG for consideration as Proposed Standards Jun 2003 Submit an NFS V4 migration/replication protocol to IESG for consideration as a Proposed Standard Jun 2003 Submit report on results of NFS version 4 RFC interoperability testing Jul 2003 AD review of NFS/RPC/RDDP progress and charter Jul 2003 Interoperability tests of NFS V4 migration/replication Aug 2003 Submit revised NFS Version 4 Proposed Standard for consideration as Draft Standard to IESG Internet-Drafts: Posted Revised I-D Title ------ ------- -------------------------------------------- May 2003 Oct 2008 RPC: Remote Procedure Call Protocol Specification Version 2 Feb 2004 Feb 2008 NFS RDMA Problem Statement Jul 2004 Apr 2008 Remote Direct Memory Access Transport for Remote Procedure Call Jul 2004 Apr 2008 NFS Direct Data Placement Oct 2005 Sep 2008 NFS Version 4 Minor Version 1 Jan 2006 Jun 2008 pNFS Block/Volume Layout Jan 2006 Jun 2008 Object-based pNFS Operations Nov 2007 Sep 2008 NFSv4 Minor Version 1 XDR Description Feb 2008 Oct 2008 RPCSEC_GSS Version 2 Aug 2008 Aug 2008 IANA Considerations for RPC Net Identifiers and Universal Address Formats Sep 2008 Sep 2008 Using DNS SRV to Specify a Global File Name Space with NFS version 4 Sep 2008 Sep 2008 Administration Protocol for Federated Filesystems Sep 2008 Sep 2008 Requirements for Federated File Systems Sep 2008 Sep 2008 NSDB Protocol for Federated Filesystems Request For Comments: RFC Stat Published Title ------- -- ----------- ------------------------------------ RFC2623 PS Jul 1999 NFS Version 2 and Version 3 Security Issues and the NFS Protocol's Use of RPCSEC_GSS and Kerberos V5 RFC2624 I Jul 1999 NFS Version 4 Design Considerations RFC3010 PS Dec 2000 NFS version 4 RFC3530 PS May 2003 Network File System (NFS) version 4 Protocol RFC4506Standard May 2006 XDR: External Data Representation Standard