draft-chadalapaka-iwarp-da-00.txt,.pdf

["Mallikarjun C." <cbm@rose.hp.com>]

All:

I submitted an Internet Draft with the subject name on behalf of a team of 
authors.  The I-D announcement, including the abstract, is below.  This 
draft can be obtained from:

http://www.ietf.org/internet-drafts/draft-chadalapaka-iwarp-da-00.pdf 
http://www.ietf.org/internet-drafts/draft-chadalapaka-iwarp-da-00.txt 

"Datamover Architecture for iSCSI" (DA) describes an architectural
model for iSCSI so that new "Datamover protocols" - such as iSER,
see the separate announcement forwarded to the list by Mike Ko - 
can be designed based on this architecture.   Recommended reading
is DA, followed by iSER.  The relevant related specifications (RDMAP, 
DDP and MPA) are currently being defined by the RDDP WG.

Review and comments are welcome. 
--
Mallikarjun

Mallikarjun Chadalapaka
Networked Storage Architecture
Network Storage Solutions
Hewlett-Packard MS 5668 
Roseville CA 95747
cbm@rose.hp.com


 
I-D ACTION:draft-chadalapaka-iwarp-da-00.txt,.pdf



To: IETF-Announce: ; 
Subject: I-D ACTION:draft-chadalapaka-iwarp-da-00.txt,.pdf 
From: Internet-Drafts@ietf.org 
Date: Fri, 25 Jul 2003 15:27:02 -0400 
Cc: ips@ece.cmu.edu 
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A New Internet-Draft is available from the on-line Internet-Drafts directories.


 Title  : Datamover Architecture for iSCSI (DA)
 Author(s) : M. Chadalapaka et al.
 Filename : draft-chadalapaka-iwarp-da-00.txt,.pdf
 Pages  : 60
 Date  : 2003-7-25
 
iSCSI is a SCSI transport protocol that maps the SCSI family of 
application protocols onto TCP/IP.  The Datamover Architecture for 
iSCSI (DA) defines an abstract model in which the movement of data 
between iSCSI end nodes is logically separated from the rest of the 
iSCSI protocol in order to allow iSCSI to adapt to innovations 
available in new IP transports.  The new Datamover protocol provides 
a reliable transport for all iSCSI PDUs, but actually moves 
the data required for certain iSCSI PDUs without involving the 
remote iSCSI layer itself.  This document begins with an 
introduction of a few new abstractions, defines a layered 
architecture for iSCSI and Datamover protocols, and then models the 
interactions within an iSCSI end node between the iSCSI layer and 
the Datamover layer that happen in order to transparently perform 
remote data movement within an IP fabric.  It is intended that this 
definition would help map iSCSI to generic RDMA-capable IP fabrics 
in the future comprising TCP, SCTP, and possibly other underlying 
network transport layers.

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