The HP-UX iSCSI Software Interface Driver (SWD) is a host based
implementation of the iSCSI protocol that uses standard Network
Interface Cards (NICs). There are no special network infrastructure
requirements.
The iSCSI SWD interfaces with the iSCSI transport layer for
session management and SCSI support. It also interfaces with the
network stack above the TCP layer. iSCSI Protocol Data Units (PDUs)
are sent and received by the iSCSI SWD on the TCP stream.
The iSCSI SWD receives SCSI commands and data from the iSCSI
transport layer and sends SCSI responses to the iSCSI transport
layer.
