Appendix A. Connecting SCSI Devices to the Adapter
Planning Your SCSI Device Layout
SCSI devices are attached to a SCSI adapter in a chain. Devices in the chain can
be internal (inside your system unit) or external (connected outside your system unit).
If you are connecting more than one SCSI device, it is important that you plan the
layout of your SCSI chain.
Note: At each end of the SCSI chain, a terminator is required.
Figure
A-1. SCSI Chain with Internal and External Devices
Term
is the SCSI terminator on the last device or the end of the cable.
Setting SCSI Addresses
Each SCSI device requires a unique SCSI address. The address is a number from 6
through 0 for narrow devices or from 6 through 0 and 15 through 8 for wide devices.
If two SCSI devices have the same address, your system unit will not function
properly. SCSI address 7 is reserved for the adapter, so additional SCSI devices can
be set to addresses 6 through 0 and 15 through 8.
Appendix A. Connecting SCSI Devices to the Adapter
A-1
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