< draft-talpey-nfs-rdma-problem-statement-00.txt		draft-talpey-nfs-rdma-problem-statement-01.txt >
	Internet-Draft Tom Talpey		Internet-Draft Tom Talpey
	Expires: December 2003 Network Appliance, Inc.		Expires: August 2004 Network Appliance, Inc.
	Chet Juszczak		Chet Juszczak
	Sun Microsystems, Inc.		Sun Microsystems, Inc.
	June, 2003		February, 2004
	NFS RDMA Problem Statement		NFS RDMA Problem Statement
	draft-talpey-nfs-rdma-problem-statement-00.txt		draft-talpey-nfs-rdma-problem-statement-01.txt
	Status of this Memo		Status of this Memo
	This document is an Internet-Draft and is subject to all provisions		This document is an Internet-Draft and is subject to all provisions
	of Section 10 of RFC2026.		of Section 10 of RFC2026.
	Internet-Drafts are working documents of the Internet Engineering		Internet-Drafts are working documents of the Internet Engineering
	Task Force (IETF), its areas, and its working groups. Note that		Task Force (IETF), its areas, and its working groups. Note that
	other groups may also distribute working documents as Internet-		other groups may also distribute working documents as Internet-
	Drafts.		Drafts.
	skipping to change at page 1, line 38 ¶		skipping to change at page 1, line 38 ¶
	progress."		progress."
	The list of current Internet-Drafts can be accessed at		The list of current Internet-Drafts can be accessed at
	http://www.ietf.org/ietf/1id-abstracts.txt		http://www.ietf.org/ietf/1id-abstracts.txt
	The list of Internet-Draft Shadow Directories can be accessed at		The list of Internet-Draft Shadow Directories can be accessed at
	http://www.ietf.org/shadow.html.		http://www.ietf.org/shadow.html.
	Copyright Notice		Copyright Notice
	Copyright (C) The Internet Society (2003). All Rights Reserved.		Copyright (C) The Internet Society (2004). All Rights Reserved.
	Abstract		Abstract
	This draft addresses applying Remote Direct Memory Access to the		This draft addresses applying Remote Direct Memory Access to the
	NFS protocols. NFS implementations historically incur significant		NFS protocols. NFS implementations historically incur significant
	overhead due to data copies on end-host systems, as well as other		overhead due to data copies on end-host systems, as well as other
	sources. The potential benefits of RDMA to these implementations		sources. The potential benefits of RDMA to these implementations
	are explored, and the reasons why RDMA is especially well-suited to		are explored, and the reasons why RDMA is especially well-suited to
	NFS and network file protocols in general are evaluated.		NFS and network file protocols in general are evaluated.
	skipping to change at page 12, line 14 ¶		skipping to change at page 12, line 14 ¶
	8. Acknowledgements		8. Acknowledgements
	The authors wish to thank Jeff Chase who provided many useful		The authors wish to thank Jeff Chase who provided many useful
	suggestions.		suggestions.
	9. References		9. References
	[BRU99]		[BRU99]
	J. Brustoloni, "Interoperation of copy avoidance in network		J. Brustoloni, "Interoperation of copy avoidance in network
	and file I/O", In Proc. INFOCOM '99, pages 534-542, New York,		and file I/O", in Proc. INFOCOM '99, pages 534-542, New York,
	NY, Mar. 1999., IEEE. Also available from		NY, Mar. 1999., IEEE. Also available from
	http://www.cs.pitt.edu/~jcb/publs.html		http://www.cs.pitt.edu/~jcb/publs.html
	[CAL+03]		[CAL+03]
	B. Callaghan, T. Lingutla-Raj, A. Chiu, P. Staubach, O. Asad,		B. Callaghan, T. Lingutla-Raj, A. Chiu, P. Staubach, O. Asad,
	"NFS over RDMA", to be published in Proceedings of ACM SIGCOMM		"NFS over RDMA", in Proceedings of ACM SIGCOMM Summer 2003
	Summer 2003 NICELI Workshop.		NICELI Workshop.
	[CHA+01]		[CHA+01]
	J. S. Chase, A. J. Gallatin, K. G. Yocum, "Endsystem		J. S. Chase, A. J. Gallatin, K. G. Yocum, "Endsystem
	optimizations for high-speed TCP", IEEE Communications,		optimizations for high-speed TCP", IEEE Communications,
	39(4):68-74, April 2001.		39(4):68-74, April 2001.
	[CHA+99]		[CHA+99]
	J. S. Chase, D. C. Anderson, A. J. Gallatin, A. R. Lebeck, K.		J. S. Chase, D. C. Anderson, A. J. Gallatin, A. R. Lebeck, K.
	G. Yocum, "Network I/O with Trapeze", In 1999 Hot		G. Yocum, "Network I/O with Trapeze", in 1999 Hot
	Interconnects Symposium, August 1999.		Interconnects Symposium, August 1999.
	[CHU96]		[CHU96]
	H.K. Chu, "Zero-copy TCP in Solaris", Proc. of the USENIX 1996		H.K. Chu, "Zero-copy TCP in Solaris", Proc. of the USENIX 1996
	Annual Technical Conference, San Diego, CA, January 1996		Annual Technical Conference, San Diego, CA, January 1996
	[DAFS]		[DAFS]
	Direct Access File System Specification version 1.0, available		Direct Access File System Specification version 1.0, available
	from http://www.dafscollaborative.org, September 2001		from http://www.dafscollaborative.org, September 2001
	skipping to change at page 12, line 52 ¶		skipping to change at page 12, line 52 ¶
	M. DeBergalis, P. Corbett, S. Kleiman, A. Lent, D. Noveck, T.		M. DeBergalis, P. Corbett, S. Kleiman, A. Lent, D. Noveck, T.
	Talpey, M. Wittle, "The Direct Access File System", in		Talpey, M. Wittle, "The Direct Access File System", in
	Proceedings of 2nd USENIX Conference on File and Storage		Proceedings of 2nd USENIX Conference on File and Storage
	Technologies (FAST '03), San Francisco, CA, March 31 - April		Technologies (FAST '03), San Francisco, CA, March 31 - April
	2, 2003		2, 2003
	[FJDAFS]		[FJDAFS]
	Fujitsu Prime Software Technologies, "Meet the DAFS		Fujitsu Prime Software Technologies, "Meet the DAFS
	Performance with DAFS/VI Kernel Implementation using cLAN",		Performance with DAFS/VI Kernel Implementation using cLAN",
	available from		available from
	http://www.pst.fujitsu.com/english/dafsdemo/index.html, xxx		http://www.pst.fujitsu.com/english/dafsdemo/index.html, 2001.
	2001.
	[FJNFS]		[FJNFS]
	Fujitsu Prime Software Technologies, "An Adaptation of VIA to		Fujitsu Prime Software Technologies, "An Adaptation of VIA to
	NFS on Linux", available from		NFS on Linux", available from
	http://www.pst.fujitsu.com/english/nfs/index.html, xxx 2000.		http://www.pst.fujitsu.com/english/nfs/index.html, 2000.
	[GAL+99]		[GAL+99]
	A. Gallatin, J. Chase, K. Yocum, "Trapeze/IP: TCP/IP at Near-		A. Gallatin, J. Chase, K. Yocum, "Trapeze/IP: TCP/IP at Near-
	Gigabit Speeds", 1999 USENIX Technical Conference (Freenix		Gigabit Speeds", 1999 USENIX Technical Conference (Freenix
	Track), June 1999.		Track), June 1999.
	[KM02]		[KM02]
	K. Magoutis, "Design and Implementation of a Direct Access		K. Magoutis, "Design and Implementation of a Direct Access
	File System (DAFS) Kernel Server for FreeBSD", in Proceedings		File System (DAFS) Kernel Server for FreeBSD", in Proceedings
	of USENIX BSDCon 2002 Conference, San Francisco, CA, February		of USENIX BSDCon 2002 Conference, San Francisco, CA, February
	skipping to change at page 13, line 37 ¶		skipping to change at page 13, line 36 ¶
	Monterey, CA, June 9-14, 2002.		Monterey, CA, June 9-14, 2002.
	[MOG03]		[MOG03]
	J. Mogul, "TCP offload is a dumb idea whose time has come",		J. Mogul, "TCP offload is a dumb idea whose time has come",
	9th Workshop on Hot Topics in Operating Systems (HotOS IX),		9th Workshop on Hot Topics in Operating Systems (HotOS IX),
	Lihue, HI, May 2003. USENIX.		Lihue, HI, May 2003. USENIX.
	[NFSRDMA]		[NFSRDMA]
	T. Talpey, S. Shepler, "NFSv4 RDMA and Session Extensions",		T. Talpey, S. Shepler, "NFSv4 RDMA and Session Extensions",
	Internet Draft Work in Progress, draft-talpey-nfsv4-rdma-		Internet Draft Work in Progress, draft-talpey-nfsv4-rdma-
	sess-00, May 2003.		sess-01, February 2004.
	[PAI+00]		[PAI+00]
	V. S. Pai, P. Druschel, W. Zwaenepoel, "IO-Lite: a unified I/O		V. S. Pai, P. Druschel, W. Zwaenepoel, "IO-Lite: a unified I/O
	buffering and caching system", ACM Trans. Computer Systems,		buffering and caching system", ACM Trans. Computer Systems,
	18(1):37-66, Feb. 2000.		18(1):37-66, Feb. 2000.
	[RFC3530]		[RFC3530]
	S. Shepler, et. al., "NFS Version 4 Protocol", Standards Track		S. Shepler, et. al., "NFS Version 4 Protocol", Standards Track
	RFC		RFC
	[RDDPPS]		[RDDPPS]
	Remote Direct Data Placement Working Group Problem Statement,		Remote Direct Data Placement Working Group Problem Statement,
	A. Romanow, J. Mogul, T. Talpey, S. Bailey, draft-ietf-rddp-		A. Romanow, J. Mogul, T. Talpey, S. Bailey, draft-ietf-rddp-
	problem-statement-02		problem-statement-03
	[RFC1831]		[RFC1831]
	R. Srinivasan, "RPC: Remote Procedure Call Protocol		R. Srinivasan, "RPC: Remote Procedure Call Protocol
	Specification Version 2", Standards Track RFC		Specification Version 2", Standards Track RFC
	[RFC1832]		[RFC1832]
	R. Srinivasan, "XDR: External Data Representation Standard",		R. Srinivasan, "XDR: External Data Representation Standard",
	Standards Track RFC		Standards Track RFC
	[RFC1813]		[RFC1813]
	B. Callaghan, B. Pawlowski, P. Staubach, "NFS Version 3		B. Callaghan, B. Pawlowski, P. Staubach, "NFS Version 3
	Protocol Specification", Informational RFC		Protocol Specification", Informational RFC
	[RPCRDMA]		[RPCRDMA]
	B. Callaghan, T. Talpey, "RDMA Transport for ONC RPC",		B. Callaghan, T. Talpey, "RDMA Transport for ONC RPC",
	Internet Draft Work in Progress, draft-callaghan-rpcrdma-00,		Internet Draft Work in Progress, draft-callaghan-rpcrdma-01
	May 2003.
	[SHI+03]		[SHI+03]
	P. Shivam, J. Chase, "On the Elusive Benefits of Protocol		P. Shivam, J. Chase, "On the Elusive Benefits of Protocol
	Offload", to be published in Proceedings of ACM SIGCOMM Summer		Offload", to be published in Proceedings of ACM SIGCOMM Summer
	2003 NICELI Workshop, also available from		2003 NICELI Workshop, also available from
	http://issg.cs.duke.edu/publications/niceli03.pdf		http://issg.cs.duke.edu/publications/niceli03.pdf
	[SKE+01]		[SKE+01]
	K.-A. Skevik, T. Plagemann, V. Goebel, P. Halvorsen,		K.-A. Skevik, T. Plagemann, V. Goebel, P. Halvorsen,
	"Evaluation of a Zero-Copy Protocol Implementation", in		"Evaluation of a Zero-Copy Protocol Implementation", in
	skipping to change at page 15, line 4 ¶		skipping to change at page 14, line 43 ¶
	Authors' Addresses		Authors' Addresses
	Tom Talpey		Tom Talpey
	Network Appliance, Inc.		Network Appliance, Inc.
	375 Totten Pond Road		375 Totten Pond Road
	Waltham, MA 02451 USA		Waltham, MA 02451 USA
	Phone: +1 781 768 5329		Phone: +1 781 768 5329
	EMail: thomas.talpey@netapp.com		EMail: thomas.talpey@netapp.com
	Chet Juszczak		Chet Juszczak
	Sun Microsystems, Inc.		Sun Microsystems, Inc.
	43 Nagog Park		43 Nagog Park
	Acton, MA 01720 USA		Acton, MA 01720 USA
	Phone: +1 978 206 9148		Phone: +1 978 206 9148
	Email: chet.juszczak@sun.com		Email: chet.juszczak@sun.com
	Full Copyright Statement		Full Copyright Statement
	Copyright (C) The Internet Society (2003). All Rights Reserved.		Copyright (C) The Internet Society (2004). All Rights Reserved.
	This document and translations of it may be copied and furnished to		This document and translations of it may be copied and furnished to
	others, and derivative works that comment on or otherwise explain		others, and derivative works that comment on or otherwise explain
	it or assist in its implementation may be prepared, copied,		it or assist in its implementation may be prepared, copied,
	published and distributed, in whole or in part, without restriction		published and distributed, in whole or in part, without restriction
	of any kind, provided that the above copyright notice and this		of any kind, provided that the above copyright notice and this
	paragraph are included on all such copies and derivative works.		paragraph are included on all such copies and derivative works.
	However, this document itself may not be modified in any way, such		However, this document itself may not be modified in any way, such
	as by removing the copyright notice or references to the Internet		as by removing the copyright notice or references to the Internet
	Society or other Internet organizations, except as needed for the		Society or other Internet organizations, except as needed for the
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	16 lines changed or deleted		15 lines changed or added
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