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Chapter 5 SCSI Backplane and Drives: Hot-swapping and Configuring
Internal/External (INT/EXT) Jumper J8
When this jumper is in the “INT” position—jumper on pins 1 and 2 default
setting—the backplane assumes it is operating in an “internal” peripheral
bay in the chassis.
When this jumper is in the “EXT” position—jumper on pins 2 and 3—the
backplane assumes it is operating in an “external” peripheral bay in a
peripheral expansion chassis. This option is not available.
SCSI ID Configuration Options
The SCSI chip on the hot-docking backplane uses the SAF-TE protocol to
communicate with the system board. This chip uses SCSI ID 6; therefore,
other SCSI devices cannot use this address.
J10 J9 Drive 0 Drive 1 Drive 2 Drive 3 Drive 4
2-3 2-3 ID8 ID9 ID2 ID11 ID12
1-2 2-3 ID0 ID1 ID2 ID3 ID4
2-3 1-2 ID8 ID9 ID10 ID11 ID12
1-2* 1-2* ID0 ID1 ID10 ID3 ID4
* Jumper default setting.