Seagate BARRACUDA 9 Guía de instalación descargar pdf (Pagina 20)

18 Barracuda 9 Installation Guide, Rev. A

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 externally—this means the SCSI con-

troller is no longer on the end of the SCSI chain and should not

be terminated.

Note. Some controllers prefer to remain terminated even if they

are in the middle of the chain. Also, some controllers treat

the internal and external chains as separate logical

buses. This means you may need to terminate both the

first and last devices on both logical buses to achieve

proper termination. If necessary, refer to your system or

controller documentation to see how this is handled in

your particular system.

For information about how to terminate your drive, refer to the

appropriate drive-specific section.

Figure 2. 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

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Seagate BARRACUDA 9 Guía de instalación Pagina 20