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Introduction
22 Network Storage Router N1200 User Guide
Fibre Channel to SCSI Protocol Process
This section describes the steps the router uses to convert Fibre Channel host
protocol to SCSI device protocol (see Figure 4).
Figure 4: Converting Fibre Channel to SCSI process
Table 3: Converting Fibre Channel to SCSI process description
Item Description
1
A Fibre Channel host issues an encapsulated FCP protocol command
packet to the router.
2
The router Fibre Channel controller interprets the Fibre Channel
information and places the packet in buffer memory.
3
The router interprets the Fibre Channel information packet and
programs the router SCSI controller to process the transaction.
4
The router SCSI controller sends the command to the SCSI device
(target).
5
The SCSI target interprets the command and executes it.
StorageWorks Router
Hub or Switch
FC Host
SCSI Device
Memory Processor
Bus
SCSI Controller
SCSI Controller
FC Controller
FC Host
FC Host
SCSI DeviceSCSI Device
SCSI DeviceSCSI DeviceSCSI Device
Fibre Channel
SCSI
1
2
3
5
4