Mapping Devices
To allow Fibre Channel and SCSI devices to address each other, the FCR200 creates a table that maps device identifiers between Fibre Channel and SCSI. During FCR200 configuration, you can choose the mapping method and, in certain cases, customize the device mappings. See Chapter 5 for more information about address modes and their configurations.
Processing SCSI Information
The following describes how the router processes SCSI information. Refer to Figure
1A FC host issues a command. The FC host encapsulates the command in the FCP protocol and sends the packet to the FCR200.
2The FC port in the FCR200 receives the packet, interprets the FC information, and places the packet in buffer memory.
3The FCR200’s processor interprets the information and programs a SCSI controller to process the transaction.
4The SCSI controller sends the command to the SCSI device (target).
5The target interprets the command and prepares to either read or write data.
