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Routing scsi requests and responses – HP StorageWorks IP Storage Router User Manual

Page 62

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Software Overview

62

IP Storage Router SR2122-2 User Guide

Routing SCSI Requests and Responses

SCSI routing consists of routing SCSI requests and responses between hosts in an
IP network and FC storage.

Figure 32: Routing SCSI requests and responses for SCSI routing

Each host that requires IP access to storage via an IP Storage Router 2122-2 needs
to have a compatible iSCSI driver installed. Using the iSCSI protocol, the iSCSI
driver allows an IP host to transport SCSI requests and responses over an IP
network. From the perspective of a host operating system, the iSCSI drive appears
to be a locally attached SCSI or Fibre Channel drive to the host.

SCSI routing consists of the following main actions (see

Figure 33

):

Transporting SCSI requests and responses over an IP network between the
hosts and the SR2122-2

Routing SCSI requests and responses between hosts on an IP network and FC
storage

Transporting SCSI requests and responses between the SR2122-2 and FC
storage

IP hosts

IP

HP SR2122-2

SCSI requests and responses

FC storage

15022

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