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Barracuda 4 Installation Guide, Rev. E 21
Drive termination
If you are installing the drive in a system that has other
SCSI devices installed, terminate only the end devices
on the SCSI chain. A SCSI “device” is any disc drive,
scanner, tape backup unit, or other piece of hardware
connected to your system using the SCSI bus.
The top example in Figure 4 shows an internal hard disc
at one end of the SCSI bus with the SCSI controller at
the other end (both are terminated). The bottom ex-
ample shows two additional SCSI devices connected
externally—this means the SCSI controller is no longer
on the end of the SCSI chain and should not be termi-
nated.
For information about how to terminate your drive, refer
to the appropriate drive-specific section.
Figure 4. SCSI bus termination
Internal
SCSI device
Internal
SCSI device
Controller
External
SCSI device
External
SCSI device
External
SCSI
cable
Internal SCSI cable
Terminate
Internal
SCSI device
Internal
SCSI device
Controller
Internal SCSI cable
Terminate