A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Datamover Architecture for iSCSI (DA)
Author(s) : M. Chadalapaka
Filename : draft-chadalapaka-iwarp-da-01.txt,.pdf
Pages : 60
Date : 2004-1-21
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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