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Barracuda 2LP Installation Guide, Rev. E 21
Also check your system or controller user’s manual to
ensure that you have not violated its SCSI ID numbering
recommendations.
Drive termination
If you are installing a Barracuda 2LP 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 hard-
ware connected to your system using the SCSI bus.
The top example in Figure 2 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 example
shows two additional SCSI devices connected exter-
nally—this means the SCSI controller is no longer on the
end of the SCSI chain and should not be terminated.
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
Figure 2. SCSI bus termination