44

Barracuda 4LP Installation Guide, Rev. B

W/WD drives

Other applicable jumper options

Other option jumpers are available as illustrated below.

Drive with

 

 

 

 

 

 

 

 

 

 

 

HDA up, PCB

 

 

 

 

 

 

 

 

 

 

 

down, viewed

 

 

 

 

 

Pin 1

 

from front

HDA

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

J6

 

 

 

 

L

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved E

E A

3

A

2

A

1

A

0

 

 

 

 

 

D

S

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

11

 

Remote

 

LED

CATH

12

Shipped with cover installed.

Do not remove.

Do not install jumpers on these four positions.

 

J2

 

 

 

 

Pin 1

 

 

 

 

 

 

 

 

 

 

 

 

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Delay Motor Start option

 

 

 

 

 

(valid only if the Enable

 

 

 

 

 

Motor Start jumper is

 

 

 

 

 

not connected)

 

 

 

 

 

 

 

 

 

 

 

 

Disable the Delay Motor

 

 

 

 

(default)

Start option.

 

 

 

 

 

 

 

 

 

Motor start delay equal

 

 

 

 

 

to the SCSI ID multiplied

 

 

 

 

 

by 12 seconds. For

 

 

 

 

 

example, if the SCSI

 

 

 

 

 

ID = 2, the drive starts

 

 

 

 

 

in 24 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

Motor Start option

 

 

 

 

 

 

 

 

 

 

 

 

 

Disable motor start

 

 

 

 

 

Drive Front

J6

 

J2

DC Power

Connector

J1

J6

Jumper Type (enlarged to show detail)

Pin 1

End

Pin 1

(default). The drive

(default)

starts according to the

 

Delay Motor Start option.

 

 

 

Enable motor start. The

 

drive waits for the Start

 

Unit command from the

 

 

 

 

 

host before starting the

 

 

 

 

 

 

spindle motor.

 

 

 

 

 

 

 

 

 

Write Protect option

 

 

 

 

 

Write protect = Off

 

 

 

(default)

(enables writing.

 

 

 

Write protect = On

 

 

 

 

 

 

(disables writing).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parity Check option

 

 

 

 

 

 

 

Enable parity check of

(default)

SCSI bus.

 

SCSI I/O

Connector J2 Jumper Type (enlarged to

show detail)

Disable parity check.

Figure 15. Additional jumper options

Page 46
Image 46
Seagate ST34371N/W/WC/WD/DC, ST32171N/W/WC/WD/DC manual Other option jumpers are available as illustrated below