Siemens PSFR-CP41 manual Processing Scsi Information

Models: PSFR-CP41

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Processing SCSI Information

Introducing the PSFR-CP41

Processing SCSI Information

The following describes how the router processes SCSI information:

1.A FC host issues a command. The FC host encapsulates the command in the FCP protocol and sends the packet to the PSFR-CP41.

2.The FC port in the PSFR-CP41 receives the packet, interprets the FC infor- mation, and places the packet in buffer memory.

3.The PSFR-CP41’s processor interprets the information and programs the SCSI controller to process the transaction.

4.The SCSI controller sends the command to the SCSI device (target).

Information processing

5.The target interprets the command and prepares to either read or write data.

6.Data flows between the host and target through buffer memory.

7.Response information flows from the SCSI target back to the FC host.

Operating Manual

U42093-J-Z716-1-74

Page 12
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Siemens PSFR-CP41 manual Processing Scsi Information