HP STORAGEWORKS e1200-160 User Manual Page 22

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Introduction
22 Network Storage Router e1200-160
SCSI to Fibre Channel Protocol Process
In this example, a SCSI host (initiator) on the SCSI bus issues commands and the
information is passed through the router to a target on the Fibre Channel Storage
Area Network (FC-SAN).
Figure 4 is an illustration of the process and Table 4
defines each step.
Figure 4: Converting SCSI to Fibre Channel Protocol Process
Table 4: Converting SCSI to Fibre Channel Protocol
Item Description
1
A SCSI host issues a command to the router.
2
The SCSI controller in the router interprets the command and places it in
buffer memory.
3
The router processor interprets data and programs the router Fibre
Channel controller to process the transaction.
4
The router Fibre Channel controller translates data into an FCP protocol
packet and sends it to the Fibre Channel target.
5
The Fibre Channel target interprets the FCP protocol packet and executes
the command.
StorageWorks Router
FC Controller
Hub or Switch
FC Device
SCSI Host
FC Device
Memory Processor
SCSI Controller
Bus
Fibre Channel
SCSI
1
4
3
2
5
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