Silicon Graphics TP900, User Manual

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SCSI_ID Addressing
007-4428-003 25
Table 2-2 shows the drive enclosure device addressing for each Range ID in a 1 x 8
configuration.
* View from the front of the enclosure.
2 x 4 Configuration
In a 2 x 4 configuration, the range defined by I/O module 1/3 controls the IDs of the right
4 drives (1/3, 1/ 4, 2/3, 2/4), and I/O module 1/1 controls the IDs of the left 4 drives
(1/1, 1/2, 2/1, 2/2). Figure 2-4 shows the SCSI_ID base address for each drive.
Figure 2-4 2 x 4 SCSI_ID Addressing
Table 2-2
Drive enclosure device addressing
Range ID Device Slot* 1/1 2/1 1/2 2/2 1/3 2/3 1/4 2/4
0 SCSI_ID 0 1 2 3 8 9 A B
1 SCSI_ID 1 2 3 4 9 A B C
SCSI_ID 1 SCSI_ID 3 SCSI_ID 3 SCSI_ID 1
SCSI_ID 2 SCSI_ID 4 SCSI_ID 2 SCSI_ID 4