Setting Scsi Ids; Scsi Connector Pin-Number Assignments - IBM Netfinity 7100 User's Reference Manual

For information about the maximum length of SCSI cable between the terminated
ends of the cable, refer to the ANSI SCSI standards that are listed in "SCSI cabling
requirements". Adhering to these standards will help ensure that your server operates
properly.

Setting SCSI IDs

Each SCSI device connected to a SCSI controller must have a unique SCSI ID. This ID
enables the SCSI controller to identify the device and ensure that different devices on
the same SCSI channel do not attempt to transfer data simultaneously. SCSI devices
that are connected to different SCSI channels can have duplicate SCSI IDs.
The hot-swap-drive backplane controls the SCSI IDs for the internal hot-swap drive
bays. However, when you attach SCSI devices to the external SCSI connector, you
must set a unique ID for the device. Refer to the information that is provided with the
device for instructions to set its SCSI ID.

SCSI connector pin-number assignments

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Chapter 6. Installing options