ADIC FCR 200 manual SCC Addressing, Scsi Host to Fibre Channel Target Configuration

SCC Addressing

The FCR200 implements the SCSI-3 Controller Commands (SCC) (X3T10 Project 1047D Revision 6b 01-July-96) SCSI storage array addressing to address SCSI devices attached to the FCR200. The Access Method used is the SCC Logical Unit Addressing method.

In SCC Addressing mode, the FCR200 will respond to FCP commands, as in a SCC controller device. A subset of the SCC behavior is implemented. LUN mappings corresponding to the SCC Peripheral Device Addressing are interpreted as controller commands, and are acted on by the FCR200 directly. LUN mappings using SCC Logical Unit addressing are routed to the appropriate SCSI BUS:TARGET:LUN and processed accordingly.

Further description of the FCR200 implementation of SCC addressing is in Appendix D.

SCSI Host to Fibre Channel Target Configuration

This section describes the configuration of the FCR200 when acting as a target to a SCSI Initiator, passing requests through to Fibre Channel targets.

SCSI-to-Fibre Channel mapping is implemented in a fashion similar to Fibre Channel-to-SCSI Indexed Addressing mode. The FCR200 responds to commands issued to a set of configured SCSI IDs, and maps these to Fibre Channel AL_PA/LUN values. The following table indicates a possible mapping for SCSI LUN to Fibre Channel AL_PA:LUN.

Table 5-2	SCSI-to-Fibre Target:Channel Address
	Mapping
SCSI BUS:TARGET:LUN		Fibre Channel
		AL_PA	LUN
	0:0:0	0xEF	0
	0:1:0	0x02	0
	0:2:0	0x04	0
	0:3:0	0x08	0
	0:4:0	0x0F	0

5-8 Understanding the Configuration

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