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Cisco SN 5428-2 Storage Router Software Configuration Guide
OL-4691-01
Chapter 1 Before Configuring SN 5428-2 Storage Router Software
SCSI Routing Overview
Routing SCSI Requests and Responses
SCSI routing consists of routing SCSI requests and responses between hosts in an IP network and FC
storage. (See Figure 1-5.)
Figure 1-5 Routing SCSI Requests and Responses for SCSI Routing
Each host that requires IP access to storage via an SN 5428-2 Storage Router 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 1-6):
• Transporting SCSI requests and responses over an IP network between the hosts and the SN 5428-2
Storage Router
• Routing SCSI requests and responses between hosts on an IP network and FC storage
• Transporting SCSI requests and responses between the SN 5428-2 Storage Router and FC storage
Figure 1-6 SCSI Routing Actions
IP hosts
Cisco SN 5428-2
85723
FC storage
SCSI requests and responses
IP
IP hosts
Cisco SN 5428-2
85724
FC storage
Transporting SCSI
requests and responses
over an IP network
Transporting SCSI
requests and responses
between an SN 5428-2
and storage
Routing SCSI requests
and responses
IP