Seagate ST410800W-WD, ST410800N-ND User Manual

○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

Elite 9 Disc Drive

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ST410800N/ND

○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○

ST410800W/WD

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Installation Guide

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2 Elite 9 Installation Guide, Rev. B

Contents

Preface .................................................................. 1

Electrostatic discharge protection........................... 1

Important safety information and precautions ......... 2

Wichtige Sicherheitshinweise............................... 5

Technical support services..................................... 10

General description ................................................ 12

Initial setup information........................................... 18

Kühlung des Systems .......................................... 29

Installation des Laufwerkes

und Anschluß der Kabel....................................... 32

© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 83328850, Rev. B
October 1994

Seagate®, Seagate Technology®, and the Seagate logo
are registered trademarks of Seagate Technology, Inc.
Elite™, SeaFAX™, SeaFONE™, SeaTDD™, and
SeaBOARD™ are trademarks of Seagate Technology,
Inc. Other product names are registered trademarks or
trademarks of their owners.

No part of this publication may be reproduced in any
form without written permission from Seagate Tech­nology, Inc.

Elite 9 Installation Guide, Rev. B 1

Preface

This manual contains information for users of Seagate
Elite™ 9 SCSI disc drives. It provides support services,
performance specifications, and initial setup informa­tion. Additional information is available in the

Product Manual

(part number 83328860). Contact your
Seagate sales representative if you need to order this
publication.

Electrostatic discharge protection
Caution. Removal of circuit boards by personnel not

performing depot repair will damage com­ponents and may void the warranty.

All drive electronic assemblies are sensitive to static
electricity, due to the electrostatically sensitive devices
used within the drive circuitry. Although some devices
such as metal-oxide semiconductors are extremely
sensitive, all semiconductors, as well as some resistors
and capacitors, may be damaged or degraded by expo­sure to static electricity.

Electrostatic damage to electronic devices may be
caused by the direct discharge of a charged conductor
or by exposure to the static fields surrounding charged
objects. To avoid damaging drive electronic assemblies,
observe the following precautions when installing or
servicing the drive:

Elite 9

®

2 Elite 9 Installation Guide, Rev. B

• Ground yourself to the drive whenever the drive elec­tronics are or will be exposed. Connect yourself to
ground with a wrist strap (Seagate part number

12263496). Connection may be made to any grounded
metal assembly. As a general rule, remember that you
and the drive electronics must all be grounded to avoid
potentially damaging static discharges.

• Turn off the power before removing or installing the DC
power cable.

• Do not remove any circuit boards from the drive.

• Never use an ohmmeter on any circuit boards.

Important safety information and precautions
Caution. Use forced-air ventilation when bench-testing

the drive to ensure proper cooling of drive
components.

Use proper safety and repair techniques for safe, reliable
operation of this unit. Service should be done only by
qualified persons. We recommend the procedures in this
manual as effective ways of servicing the unit. Some
procedures require the use of special tools. For proper
maintenance and safety, you must use these tools as
recommended.

The procedures in this manual and labels on the unit
contain warnings and cautions that must be carefully

Elite 9 Installation Guide, Rev. B 3
read and followed to minimize or eliminate the risk of

personal injury. The warnings point out conditions or
practices that may endanger you or others. The cautions
point out conditions or practices that may damage the
unit, possibly making it unsafe for use.

These warnings and cautions are not exhaustive. We
cannot possibly know, evaluate, and advise you of all the
ways in which maintenance might be performed or the
possible risk of each technique. Consequently, we have
not completed any such broad evaluation. If you use a
non-approved procedure or tool, first ensure that the
method you choose will not risk either your safety or unit
performance.

Always observe the following warnings and precautions:

• Perform all maintenance by following the procedures in
this manual.

• Follow all cautions and warnings in the procedures.

• Use sound safety practices when operating or repair­ing the unit.

• Use caution when troubleshooting a unit that has
voltages present. Turn off power to the unit before
servicing it.

• Wear safety shoes when removing or replacing heavy
parts.

4 Elite 9 Installation Guide, Rev. B

• Ensure that the internal temperature of the rack or
cabinet does not exceed the limits defined for the drive
when the drive is mounted in an equipment rack or
cabinet. When units are stacked vertically, pay atten­tion to the top where temperatures are usually highest.

• Follow the precautions listed above in “Electrostatic
discharge protection.”

• Do not remove any circuit boards from the drive chas­sis. Return the entire drive for depot repair if any circuit
board is defective. Removal of circuit boards by per­sonnel not performing depot repair will damage com­ponents and may void the warranty.

• Do not remove the head and disc assembly (HDA) from
the drive chassis. Return the entire drive for depot
repair if the HDA is defective.

• Do not attempt to disassemble the HDA. It is not field
repairable. If the sealed HDA is opened by personnel
not performing depot repair, this will damage compo­nents and void the warranty.

As a component, this drive is designed to be installed
and operated in accordance with UL1950, IEC950,
EN60950, CSA C22.2 950, and VDE0805.

Seagate takes all reasonable steps to ensure that its
products are certifiable to currently accepted stan-

Elite 9 Installation Guide, Rev. B 5
dards. Typical applications of these disc drives include

customer packaging and subsystem design. Safety
agencies conditionally certify component assemblies,
such as the Elite disc drive, based on their final
acceptability in the end-use product. The subsystem
designers are responsible for meeting these conditions
of acceptability in obtaining safety/regulatory agency
compliance in their end-use products and for certifying
where required by law. A necessary part of meeting
safety requirements is the provision for overcurrent
protection on drive SELV supply voltages.

This unit is a component part and as such is not meant
to comply with FCC or similar national requirements as
a stand-alone unit. Engineering radiated emissions test
results are available through the Seagate Safety Depart­ment to assist the subsystem designer.

Wichtige Sicherheitshinweise
Vorsicht. Beim Testen des Laufwerks auf dem

Prüftisch ist Fremdbelüftung vorzusehen, um eine
ausreichende Kühlung der Laufwerkkomponenten
sicherzustellen.

Verwenden Sie geeignete Sicherheits- und
Reparaturverfahren, um den sicheren, zuverlässigen
Betrieb dieser Einheit zu gewährleisten. Reparaturen

6 Elite 9 Installation Guide, Rev. B
dürfen nur von qualifiziertem Fachpersonal

vorgenommen werden. Wir empfehlen die Verfahren in
diesem Handbuch als effektive Methoden zur
Wartung und Reparatur der Einheit. Einige Verfahren
erfordern Spezialwerkzeuge; diese müssen zur
sachgemäßen Ausführung der Wartungsarbeiten und
aus Sicherheitsgründen den Empfehlungen
entsprechend verwendet werden.

Die Verfahren in diesem Handbuch und die Aufkleber
auf dem Gerät enthalten Warn- und Vorsichtshinweise.
Diese Hinweise sind sorgfältig durchzulesen und zu
beachten, um das Risiko von Verletzungen auf ein
Mindestmaß zu beschränken oder ganz zu vermeiden.
Die Warnhinweise machen auf Situationen oder Praktiken
aufmerksam, die Sie oder andere gefährden könnten.
Die Vorsichtshinweise machen auf Situationen oder
Praktiken aufmerksam, die Einheit beschädigen können,
so daß deren Gebrauch mit Risiko behaftet ist.

Die Warn- und Vorsichtshinweise sind nicht
allumfassend! Es ist uns einfach nicht möglich, alle
Wartungsmethoden oder die eventuellen Risiken jeder
Methode zu kennen, zu beurteilen und Sie
entsprechend zu beraten. Aus diesem Grund haben
wir auf eine derartige umfassende Beurteilung
verzichtet. Falls Sie ein hier nicht beschriebenes
Verfahren oder Werkzeug verwenden, stellen Sie

Elite 9 Installation Guide, Rev. B 7
zuerst sicher, daß das gewählte Verfahren weder Ihre

persönliche Sicherheit noch die Leistung der Einheit
gefährdet.

Beachten Sie in jedem Fall die folgenden Warn-und
Vorsichtshinweise:

• Führen Sie alle Wartungsarbeiten entsprechend den
Anweisungen in diesem Handbuch aus.

• Beachten Sie alle Warn- und Vorsichtshinweise in
diesem Handbuch.

• Treffen Sie beim Betrieb oder bei der Reparatur der
Einheit angemessene Sicherheitsvorkehrungen.

• Wenn eine Einheit unter Spannung steht, gehen Sie
bei der Fehlerdiagnose besonders vorsichtig vor.
Schalten Sie die Einheit aus, bevor Sie mit den
Reparaturarbeiten beginnen.

• Tragen Sie Sicherheitsschuhe, wenn Sie schwere
Teile aus- bzw. einbauen.

• Wenn das Laufwerk in einem Einbaugestell oder
Gehäuse montiert ist, sorgen Sie dafür, daß die
Temperatur im Inneren des Gestells oder Gehäuses
die für das Laufwerk vorgegebenen Grenzwerte nicht
übersteigt. Wenn Einheiten vertikal übereinander
betestigt werden, achten Sie besonders auf den oberen
Stapelbereich, da dort die Temperatur gewöhnlich am
höchsten ist.

8 Elite 9 Installation Guide, Rev. B

• Befolgen Sie die oben unter “Electrostatic Discharge
Protection” angegebenen Sicherheitsmaßnahmen.

• Nehmen Sie keine Platinen aus dem Laufwerkgehäuse.
Wenn eine Platine defekt ist, muß das gesamte
Laufwerk zur Reparatur eingeschickt werden. Die
Herausnahme von Platinen durch andere Personen
als die für die werkseitige Reparatur zuständigen kann
zu einer Beschädigung der Komponenten und
Erlöschen des Garantieanspruchs führen.

• Die vormontierte Kopf- und Festplatteneinheit (HDA)
nicht aus dem Laufwerkgehäuse nehmen! Falls die
HDA beschädigt ist, schicken Sie das gesamte
Laufwerk zur Reparatur ein.

• Die HDA ist nicht vor Ort reparierbar und darf nicht
auseinandergenommen werden! Öffnen der
versiegelten HDA durch andere Personen als die für
die werkseitige Reparatur zuständigen hat eine
Beschädigung der Komponenten und Erlöschen des
Garantieanspruchs zur Folge.

Als Teilkomponente ist dieses Laufwerk für die Installa­tion und den Betrieb in Übereinstimmung mit UL 1950,
IEC950, EN60950, CSA C22.2 950 und VDE0805
vorgesehen.

Seagate ist ständig bemüht, die Zulassungsfähigkeit
von Seagate-Produkten im Rahmen der gegenwärtig

Elite 9 Installation Guide, Rev. B 9
geltenden Standards zu gewährleisten. Zu den typischen

Anwendungen dieser Festplattenwerke zählen
Systemeinbau durch den Kunden und die Konstruktion
von Untersystemen. Sicherheitsbehörden gewähren eine
bedingte Zulassung für Komponenten wie das Elite­Festplattenlaufwerk vorbehaltlich der endgültigen
Zulassung im Endprodukt. Designer von Untersystemen
sind dafür verantwortlich, die Voraussetzungen für die
Einhaltung sicherheits- oder aufsichtsbehördlicher
Vorschriften in ihren Endprodukten und - falls gesetzlich
vorgeschrieben - für die Zulassung zu schaffen.
Eine Grundvoraussetzung zur Einhaltung der
Sicherheitsanforderungen ist die Bereitstellung
eines Überlastschutzes für die SELV­Versorgungsspannungen des Laufwerks.

Dieses Gerät ist eine Baugruppe und unterliegt als
solche nicht den Anforderungen der FCC oder ähnlicher
nationaler Behörden für eigenständige Geräte.
Technische Testergebnisse zu elektromagnetische
Strahlung sind für Designer von Untersystemen auf
Anfrage von der Seagate-Sicherheitsabteilung
erhältlich.

10 Elite 9 Installation Guide, Rev. B

Technical support services

Seagate Technology provides technical support litera­ture and diagnostic utilities to authorized distributors.
Please contact your dealer for technical support and
installation troubleshooting. Product technical support
is available for all Seagate products by calling the
SeaFAX™, SeaFONE™, SeaTDD™, or SeaBOARD™
services. These are toll calls if you dial from outside of
the number’s local dialing area.

SeaFAX:
USA [phone]; England 44-62-847-7080

Use a touch-tone telephone to access Seagate’s auto­mated FAX system and select technical support infor­mation by return FAX. This service is available 24 hours
a day, 7 days a week.

SeaFONE: [phone]

Technical support specialists are available 8:00 A.M. to
5:00 P.M. PST, Monday through Friday. Recorded techni-
cal information for selected Seagate products is pro­vided while you are on hold. Recordings are accessible
24 hours a day, 7 days a week.

SeaTDD: [phone]

TDD is a telecommunication device for the deaf where
two people can communicate using a keyboard con­nected to the phone line. A TDD device is required to

Elite 9 Installation Guide, Rev. B 11
access this service, which is available from 8:00 A.M. to

5:00 P.M. PST, Monday through Friday.

SeaBOARD:

The Seagate Technical Support Bulletin Board System
(BBS) is available 24 hours a day, 7 days a week. A
modem is required to access this service. The commu­nications software must be set for 8 data bits, no parity,
and 1 stop bit (8N1). All BBS numbers operate at 9600
baud max. With this service you can access:

• Specifications and jumper configurations for Seagate
products

• Reprints of Seagate documentation

• A directory of information and helpful utilities that you
can download to your own computer

Telephone

Location number

USA, Mexico, Latin America [phone]
England 44-62-847-8011
Germany 49-89-140-9331
Singapore 65-292-6973
Australia 61-2-756-2359
Canada [phone]
France 33-1-40-67-1034
Korea 82-2-556-7294

12 Elite 9 Installation Guide, Rev. B

General description

Elite 9 SCSI disc drives are high capacity, random­access digital-data storage devices. An Elite 9 drive is
illustrated in Figure 1. Specifications and DC power
requirements for the drive are listed in a table following
the figure.

The drive is a component for installation in an enclosure
designed for the drive. This is often a rack within the
system or an external enclosure designed to house one
or more disc drives or other peripheral units. In either
case, the disc drive must receive adequate cooling (refer
to “Providing adequate cooling”) and it must be suffi­ciently grounded and shielded from emissions. The

Elite 9 Product Manual

tains guidelines for a properly designed enclosure.

(part number 83328860) con-

Elite 9 Installation Guide, Rev. B 13

DC Power
Connector

J4A

SCSI I/O

Connector

J4B

J01

Figure 1. Elite 9 family disc drive (ST410800N shown)

14 Elite 9 Installation Guide, Rev. B

Characteristics of ST410800 drives

N/ND W/WD

SCSI-2 Interface

1

Fast Fast & Wide

Multi-segmented cache

Physical 1,024 Kbytes 1,024 Kbytes
Available to user 960 Kbytes 960 Kbytes

Capacity

Unformatted 10,800 Mbytes 10,800 Mbytes
Formatted

2

9,090 Mbytes 9,090 Mbytes

Recording

Cylinders (user accessible) 4,925 4,925
Read/Write heads 27 27
Modulation RLL 1,7 code RLL 1,7 code

SCSI rates

Max burst transfer 10 Mbytes/sec 20 Mbytes/sec

Seek time

3

Average read 11 msec 11 msec
Average write 12 msec 12 msec

Disc rotation

RPM 5,400 5,400
Average latency 5.55 msec 5.55 msec

1

Can also be operated according to SCSI-1 protocol.

2

Standard factory units are formatted as follows:

512 data bytes per sector
9 spare sectors per cylinder
1 cylinder at the inner track reserved for spares

3

Not including on-board controller overhead.

Elite 9 Installation Guide, Rev. B 15

DC power requirements for ST410800N/ND drives

Single-ended Differential

Voltage regulation

Max operating current

DC 3σ

1

5

Avg idle current DC X
Max starting current

Peak DC 3σ
Peak AC 3σ

Delay motor start

Max DC 3σ

Peak operating current

Typical DC X
Max DC 3σ

3, 6
3

1, 4

1, 10

1

1, 12

11

++

+5V

++
±±

± 5%

±±

++

+12V

++
±±

± 5%

±±

2

Amps

0.95 1.85 1.4 1.85

0.665 1.57 0.71 1.57

0.98 4.8 1.0 4.8
– 5.12 – 5.12

0.98 0.25 1.0 0.25

0.93 1.69 1.32 1.69

0.95 1.85 1.4 1.85

++

+5V

++
±±

± 5%

±±

11

++

+12V

++
±±

± 5%

±±

Max (peak) AC 3σ 1.19 2.89 1.58 2.89

Track following at

OD DC X
ID DC X

Read track

OD DC 3σ

1

1

1, 14

0.94 1.6 0.99 1.6

0.92 1.9 0.98 1.9

0.96 1.8 1.45 1.8

AC 3σ 1.37 1.9 1.64 1.9

Seeking

Typical DC X
Max DC 3σ

1, 13

1

0.95 1.95 0.99 1.95

0.99 2.1 1.02 2.1

Max (peak) AC 3σ 1.15 2.85 1.49 2.85

2

16 Elite 9 Installation Guide, Rev. B

DC power requirements for ST410800W/WD drives

Single ended Differential

Voltage regulation

Max operating current

DC 3σ

1

[5]

Avg idle current DC X
Max starting current

Peak DC 3σ
Peak AC 3σ

Delay motor start

Max DC 3σ

Peak operating current

Typical DC X
Max DC 3σ

3, 6
3

1, 4

1, 15

1

1, 12

[11]

5V

±±

±5%

±±

12V 5V

[2]

±±

±5%

±±

Amps

1.0 1.94 1.27 1.94

0.7 1.56 1.0 1.56

1.0 4.8 1.1 4.8
– 5.12 – 5.12

0.96 0.25 1.1 0.25

0.98 1.69 1.18 1.69

1.0 1.94 1.27 1.94

±±

±5%

±±

[11]

12V

±±

±5%

±±

Max (peak) AC 3σ 1.1 2.89 1.93 2.89

Track following at

OD DC X
ID DC X

Read track

OD DC 3σ

1

1

1, 16

0.97 1.58 1.0 1.56

0.96 1.9 0.99 1.9

1.03 1.8 1.5 1.8

AC 3σ 1.1 2.1 2.1 2.1

Seeking

Typical DC X
Max DC 3σ

1

1, 13

0.96 1.95 1.0 1.95

1.0 2.2 1.1 2.2

Max (peak) AC 3σ 1.1 2.85 1.7 2.85

[2]

Elite 9 Installation Guide, Rev. B 17

1

Measured with an average reading DC ammeter. Instan­taneous +12V current peaks will exceed these values.

2

A −10% tolerance is permissible during initial start of the
spindle but must return to ±5% before reaching 5,400 RPM.
The ±5% must be maintained after the drive signifies that its
power-up sequence has been completed and that it can
accept selection by the host initiator.

3

See the +12V current profile in the

4

This condition occurs when the Motor Start option is en­abled and the drive has not yet received a start motor
command.

5

See “Conducted noise immunity” in the

Manual.

The specified voltage tolerance includes ripple,

noise, and transient response.

6

At power-up, the motor current regulator limits the +12V
current to an average value of less than 4.8A, although
instantaneous peaks may exceed this value. These peaks
should measure 5 msec duration or less.

7

Minimum current loading for each supply voltage is not less
than 7% of the maximum operating current shown.

8

Use separate ground returns for +5V and +12V supplies.

9

Where power is provided to multiple drives from a common
supply, carefully consider individual drive power require­ments. Where multiple units are powered on simultaneously,
be sure the peak starting current is available to each device.

10

Operating condition is a third stroke seek at OD and read
one track. A command is issued every 100 msec.

11

No terminator power. See Section 11.7.3.4 in the

Product Manual.

continued

Elite 9 Product Manual

Elite 9 Product

Elite 9

.

18 Elite 9 Installation Guide, Rev. B

continued from previous page

12

All power-saving features are enabled.

13

Seeking is defined as a third-stroke seek at OD. A com­mand is issued every 23 msec.

14

Read track is defined as repeat reads of track 15 with an
88% duty cycle.

15

Operating condition is a third-stroke seek at OD and read 1
track. A command is issued every 60 msec for ST410800W
drives and every 72 msec for ST410800WD drives.

16

Read track is defined as repeat reads of track 15 with a 45%
duty cycle at 00.

Initial setup information

The following topics are presented to guide you through
the installation process. These topics are presented in
the order you should follow to properly install the drive.

• Setting the SCSI ID jumpers

• Terminating the drive

• Changing other applicable jumper options

• Synchronizing spindles

• Providing adequate cooling

• Mounting the drive and connecting cables

• Formatting the drive
Each option-jumper illustration identifies the original

equipment manufacturer (OEM) default factory setting.
These are the most commonly used settings but are not
necessarily the ones set for your particular system.

Elite 9 Installation Guide, Rev. B 19

Setting the SCSI ID jumpers

Each device on the SCSI chain must have a unique SCSI
ID. The host system’s SCSI controller usually uses the
highest-numbered ID available (ID7 in non-wide sys­tems); therefore the lower-numbered SCSI IDs are nor­mally used for the other SCSI devices such as this Elite
disc drive.

Note.Most SCSI controllers (host adapters) allow you to

skip a SCSI ID. For example, you can have ID0,
ID1, and ID3 (skipping ID2). Other controllers do
not allow this; refer to your system or controller
user’s manual for details about its requirements
for proper SCSI device installation.

Use connector J4A to set the SCSI ID (Figure 2). Most
Elite disc drives are factory set with the SCSI ID set at 0.
To change the SCSI ID, install jumpers on the appropri­ate pins as shown in the illustration.

If, after completing the installation process, the drive’s
LED does not sh ow on/off activity when the hos t is
trying to communicate with the drive, a duplicate SCSI
ID may be the problem. If this is the case, change the
ID so that each device on the SCSI chain has its own
unique ID. Also check your system or controller user’s
manual to ensure that you have not violated its SCSI ID
numbering recommendations.

SCSI ID = 0 (factory setting)
SCSI ID = 1
SCSI ID = 2
SCSI ID = 3
SCSI ID = 4
SCSI ID = 5
SCSI ID = 6
SCSI ID = 7

J4A

SCSI ID = 8*
SCSI ID = 9*
SCSI ID = Ah (10)*
SCSI ID = Bh (11)*
SCSI ID = Ch (12)*
SCSI ID = Dh (13)*
SCSI ID = Eh (14)*
SCSI ID = Fh (15)*
*Applicable only for W- and WD-type drives.

DC Power
Connector

J4A

SCSI I/O

Connector

J4B

J01

Pin 1

20 Elite 9 Installation Guide, Rev. B

Figure 2. Setting the SCSI ID

Elite 9 Installation Guide, Rev. B 21

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

Terminating the drive

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 3 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 controller is no longer on the
end of the SCSI chain and should not be terminated.

Figure 3. Terminating the ends of a SCSI bus

22 Elite 9 Installation Guide, Rev. B

Terminator Connect (enabled)
(factory setting)

J4A

J4A

Terminator Disconnect (disabled)

Pin 1

To terminate ST410800N and ST410800W drives, en­able the permanently mounted IC terminators by install­ing a jumper on J4A pins 19 and 20 as shown in Figure 4.
If you install one of these models and it is not on the end
of the SCSI bus, remove internal termination from the
drive by removing the Enable Drive Terminator jumper
(see Figure 4). This disables the permanently mounted
IC terminators.

Note. This jumper applies only to N- and W-type models.

Figure 4. ST410800N/W termination

Elite 9 Installation Guide, Rev. B 23

Wide I/O

Connector

ST410800WD

I/O Terminating

Resistors

Non-wide I/O

Connector

ST410800ND

I/O Terminating

Resistors

ST410800ND and ST410800WD (differential) drives are
shipped with terminators (part number 15479501) in­stalled on the circuit board. Figure 5 illustrates the
locations of the terminators. To remove termination from
the drive, carefully lift the terminators from their sockets.

Figure 5. ST410800ND/WD terminator locations

24 Elite 9 Installation Guide, Rev. B

Internal terminator power 
source (factory setting)

External terminator 
power source

Internal terminator 
power to I/O

J01

4

J01

231

Terminator 
Power Option

Pin 4

Pin 3

Pin 1

Pin 2

Figure 6. Setting terminator power jumpers

(ST410800N shown)

Changing other applicable jumper options

Elite 9 drives are designed for use in a variety of systems.
Some installations may require you to change one or
more of the other jumpers to meet specific system
requirements; however, in most cases, you will not need
to change any of these jumpers for normal drive opera­tion. Figure 7 provides the information necessary to
configure additional jumpers.

Write Protect

Reserved

J4A

DC Power
Connector

J4A

SCSI I/O

Connector

J4B

J01

Spinup delay equal to the SCSI bus ID multiplied by 10 seconds.
Valid only if the Start Command jumper is disconnected.

J4B

Spinup Delay Option

Pin 1

Immediate spinup. Valid only if the Start Command 
Option jumper is disconnected. (factory setting)

Start spindle after the SCSI bus sends a Start Unit command.

Start Command Option
Start spindle according to the Spinup Delay Option jumper. 

(factory setting)

Ignore parity check.

SCSI Bus Parity Check
Check the parity of data bytes read from the 

SCSI bus. (factory setting)

Reserved.

Write Enable (factory setting)

Pin 1

Active LED connector (+)
Ready LED connector (+)
Fault LED connector (+)
Ground (–)

LED Connections
Connect the anode to the desired LED 
connector and the cathode to the ground pin.

Elite 9 Installation Guide, Rev. B 25

Figure 7. Additional jumper options

26 Elite 9 Installation Guide, Rev. B

Spindle Sync Cable Connector

J4A

SSREF

DC Power
Connector

J4A

SCSI I/O

Connector

J4B

J01

Pin 1

Synchronizing spindles
in multiple drive configurations

If you are installing two or more Elite 9 drives, you may
(optionally) synchronize their spindles to reduce the
latency associated with switching from one drive to
another.

Spindle sync cables are used to connect the drives.
Use pins 23 and 24 on the J4A connector to attach the

spindle sync cable. Pin 24 provides the reference index
signal (SSREF+) and pin 23 provides ground (GND).
See Figure 8.

Figure 8. Spindle sync jumpers and connectors

(ST410800N shown)

Elite 9 Installation Guide, Rev. B 27

Master Sync

Source

Host

(or other drive)

Spindle
Control

Drive 1

+5V

R

T

J4A

24
23

Spindle
Control

Drive 2

+5V

R

T

J4A

24
23

Spindle
Control

Drive n

+5V

R

T

J4A

24
23

Sync Interface

System

Interface

Figure 9 illustrates a typical synchronized spindle
configuration.

After connecting each drive with spindle sync cables,
you must designate a master spindle sync reference
source. This master source is normally a disc drive
located on the same SCSI bus as the other drives you
want to synchronize with. To designate a drive as the
master, use SCSI interface commands. Refer to the

Product Manual

for information about using these

commands.

Figure 9. Spindle sync diagram

28 Elite 9 Installation Guide, Rev. B

Providing adequate cooling

The enclosure design must ensure adequate cooling for
the drive. The maximum ambient temperature is 45oC.

The drive’s product manual (83328860) describes how
to evaluate the air-flow design. The evaluation consists
of ensuring that the case temperature of certain critical
components remains within acceptable limits during
drive operation.

We recommend orienting the drive or directing the air
flow in a way that creates the least amount of air-flow
resistance while providing air flow above the circuit
boards and around the head and disc assembly (HDA).
Also, choose the shortest possible path between the air
inlet and exit. This minimizes the distance traveled by air
that is heated by the drive and by other nearby heat
sources.

Figure 10 shows two design approaches with one or
more fans used to generate air flow. The air-flow patterns
can be created by the fans either pushing or drawing air.
The overall flow pattern can be directed from front to
back, back to front, or side to side.

Elite 9 Installation Guide, Rev. B 29

Kühlung des Systems

Die Gehäusekonstruktion muß eine ausreichende
Kühlung des Laufwerkes gewährleisten. Die
Umgebungstemperatur darf maximal 45oC betragen.

Die Produkthandbuch Elite 9 (Dokument 83328860)
enthalten Anweisungen zur Beurteilung der
Luftstromkonstruktion. Die Beurteilung muß sicherstellen,
daß sich die Gehäusetemperatur bestimmter kritischer
Komponenten bei Laufwerkbetrieb innerhalb
zugelassener Grenzen hält.

Wir empfehlen, das Laufwerk so zu orientieren oder den
Luftstrom so zu lenken, daß der geringste
Luftstromwiderstand erzeugt wird und gleichzeitig ein
Luftstrom über den Platinen und um die Kopf- und
Festplatteneinheit (HDA) gegeben ist. Wählen Sie einen
möglichst kurzen Weg zwischen Lufteinlaß und -auslaß.
Dadurch wird die Strecke, die die vom Laufwerk und
anderen nahegelegenen Hitzequellen aufgewärmte Luft
zurücklegt, auf ein Minimum beschränkt.

Abbildung 10 zeigt zwei Konstruktionsmöglichkeiten,
bei denen ein oder mehrere Lüfter den Luftstrom
erzeugen. Der Luftstromverlauf wird durch die Lüfter
gesteuert, die entweder Luft einblasen oder abziehen.
Generell kann der Luftstrom entweder von vorne nach
hinten oder von hinten nach vorne verlaufen.

30 Elite 9 Installation Guide, Rev. B

Note. Air flows in the direction shown (front to back)
or in reverse direction (back to front)

Above unit
Über der Einheit

Under unit
Unter der Einheit

Note. Air flows in the direction shown or
in reverse direction (side to side)

Above unit
Über der Einheit

Under unit
Unter der Einheit

Hinweis. Luftstrom in der angezeigten Richtung
(von vorne nach hinten) oder in umgekehrter
Richtung (von hinten nach vorne)

Hinweis. Luftstrom in der angezeigten Richtung oder in
umgekehrter Richtung (von Seite zu Seite)

Figure 10. Suggested air flow
Abbildung 10. Empfohlener Luftstromverlauf

Elite 9 Installation Guide, Rev. B 31

Mounting the drive and connecting cables

Do not touch the connector pins or any components on
the control board without observing static-discharge
precautions. Always handle the drive by the frame only.

The drive may be mounted in any orientation (horizon­tally, vertically, and any combination thereof); however,
you must ensure that the drive receives adequate air flow
for cooling.

1. Mount the drive to the host system’s chassis using

four 6-32 UNC screws. Two mounting holes are in
each side of the drive and there are four mounting
holes in the bottom of the drive. See Figure 11.

The maximum length that the screws should ex­tend into the chassis mounting holes is 0.140 inch
(3.56 mm), measured from the outer surface of the
chassis. Tighten the screws down evenly. Do not
over-tighten or force the screw if it does not seem to
screw in easily, because this means the threads are
not properly aligned. In this case, back the screw out
and try again.

32 Elite 9 Installation Guide, Rev. B

Installation des Laufwerkes
und Anschluß der Kabel

Beachten Sie beim Handhaben und Anfassen der
Anschlußstifte und Komponenten die
Vorsichtsmaßnahmen zur Verhinderung statischer
Aufladung. Fassen Sie das Laufwerk nur am Rahmen an.

Das Laufwerk kann in beliebiger Orientierung (horizon­tal, vertikal oder schräg) installiert werden; jedoch muß
dafür gesorgt werden, daß ein ausreichender Luftstrom
zur Kühlung des Laufwerkes vorhanden ist.

1. Befestigen Sie das Laufwerk mit vier 6-32-UNC­Schrauben am Gehäuse des Host-Systems. Die
beiden Seiten des Laufwerkes sind mit jeweils zwei
Befestigungslöchern versehen, die Unterseite des
Laufwerkes weist vier weitere Befestigungslöcher
auf. Siehe Abbildung 11.

Gemessen von der Außenfläche des Gehäuses dürfen
die Schrauben maximal 3,56 mm in die
Befestigungslöcher des Gehüuses hineinragen. Die
Schrauben müssen gleichmäßig, jedoch nicht zu fest,
angezogen werden. Wenn sich eine Schraube nicht
ohne Widerstand einschrauben läßt, sind die Gewinde
nicht korrekt aneinander ausgerichtet. In diesem Fall
die Schraube nicht in das Gewindeloch forcieren,
sondern die Schraube herausnehmen und erneut in
das Gewindeloch einführen.

Elite 9 Installation Guide, Rev. B 33

K

M4 x .70 Metric Threads (4)

B

C

D

E

F

J

C.G.

L

6-32 Threads (4)

C.G.

I

I

G

H

A

Side

A
B
C
D
E
F
G
H

I

J
K
L

3.25

0.86

0.39

1.93

3.120

8.06

5.50

5.75

0.12

3.90

1.55

3.15

0.01

0.01

0.01

0.01

0.005

0.01

0.01

0.01

0.05

0.05

0.05

±
±
±
±
±
max
±
±
±
±
±
±

82.55

21.84

9.91

49.02

79.24

204.72

139.70

146.05

3.05

99.06

39.37

80.01

in

mm

Bottom

6-32 Threads (4)

1

The maximum screw depth that
extends into chassis must not
exceed 0.14 inches. Screws must
not touch the module or interfere
with the sway space.

1

1 1

Figure 11. Dimensions
Abbildung 11. Laufwerkabmessungen

34 Elite 9 Installation Guide, Rev. B

2. Verify that all connections between the drive and the
host system are correctly installed.

2. Prüfen Sie, ob alle Verbindungen zwischen dem
Laufwerk und dem Host-System korrekt hergestellt
sind.

3. Verify that you have correctly installed SCSI ID jump­ers and that you have properly terminated the SCSI
bus (see Figures 2, 3, 4, 5, and 6).

3. Stellen Sie sicher, daß die SCSI-Kennungsbrncken
und die Abschlußwiderstände, soweit erforderlich,
korrekt installiert sind. Siehe Abbildung 2, 3, 4, 5, und

6.

4. Connect the 50-pin SCSI cable into the drive’s SCSI
connector (shown earlier in Figure 1). Take care not
to stretch or crimp this cable, and do not block the
system’s cooling air flow with the cable.

The drive receives DC power through a 4-pin connec­tor mounted next to the SCSI connector. The output
of a power supply must meet SELV (safety extra low
voltage) as defined in IEC 950. Figure 12 provides the
pin information for the DC power connector. To con­nect the DC power cable to the drive, simply insert the
cable end into the drive’s DC power connector.

Elite 9 Installation Guide, Rev. B 35

4 3 2 1

Pin

1
2
3
4

Gleichstrom

+12V
+12V Rückleitung
+ 5V Rückleitung
+ 5V

4. Schließen Sie das 50-polige SCSI-Kabel an den
SCSI-Steckverbinder des Laufwerkes an (wie bereits
in Abbildung 1 gezeigt). Das Kabel darf nicht gedehnt
oder gedrückt werden und es darf den Luftstrom zur
Kühlung des Systems nicht behindern.

Das Laufwerk wird über einen 4-poligen, neben dem
SCSI-Anschluß befestigten Steckverbinder mit
Gleichstrom versorgt. Der Ausgang eines Netzteils
muß SELV (safety extra low voltage) nach IEC 950
entsprechen. Abbildung 12 zeigt die Steckerbelegund
für den Gleichstromanschluß. Zum Anschluß des
Gleichstromkabels an das Laufwerk das Kabelende
in den Gleichstromanschluß des Laufwerkes stecken.

Pin

Power

1

+12V

2

+12V return

3

+ 5V return

4

+ 5V

Figure 12. DC power connector
Abbildung 12. Gleichstromanschluß

36 Elite 9 Installation Guide, Rev. B
Note. Signal ground on the power control board (PCB)

and the head and disc assembly (HDA) are con­nected together in this drive and you cannot
separate them. The equipment in which you have
mounted the drive is connected directly to the
HDA and PCB without electrically isolating shock
mounts. Maximizing the conductive contact area
between HDA ground and system ground may
reduce radiated emissions. If you do not want the
system chassis to be connected to the HDA/PCB
ground, you must provide a nonconductive (elec­trically isolating) method of mounting the drive in
the host system. This may increase radiated emis­sions and is the system designer’s responsibility.

Hinweis:

Die Signalerde auf der Stromregelungskarte (PCB)
und der Kopf- und Festplatteneinheit (HDA) sind
in diesem Laufwerk miteinander verbunden und
können nicht getrennt werden. Das Gerät, in das
Sie das Laufwerk eingebaut haben, ist ohne
elektrisch isolierende Stoßdämpfer direkt an die
HDA und PCB angeschlossen. Die
elektromagnetische Strahlung kann reduziert
werden, indem Sie eine möglichst große leitende
Kontakfläche zwischen der HDA-Erdung und der
Systemerdung vorsehen. Wenn Sie das

Elite 9 Installation Guide, Rev. B 37

Systemgehäuse nicht an die HDA/PCB-Erdung
anschließen wollen, müssen Sie das Laufwerk auf
nichtleitende Weise (galvanisch isoliert) im Host­System einbauen. Die daraus u.U. resultierende
verstärkte elektromagnetische Strahlung fällt in
den Zuständigkeitsbereich des Systemdesigners.

5. Replace the host system’s cover.

5. Setzen Sie das Gehäuseoberteil des Host-Systems
wieder auf.

Formatting the drive
Warning. Formatting a drive erases all user data. Be

sure that you understand this principle before
formatting any hard disc drive.

It is not necessary to format a drive which has
previously been used to store data, unless
your intention is to erase all user data.

1. Turn on DC power.

2. Boot the system from a system floppy disc or from a
previously installed hard disc drive if there is one.

3. Format the disc drive. The Elite 9 disc drive is de­signed to operate with a variety of operating systems.
Refer to your system or SCSI controller manuals for
information about formatting and setting up the drive.

38 Elite 9 Installation Guide, Rev. B

Seagate Technology, Inc.
920 Disc Drive, Scotts Valley, CA 95066-4544, USA

Publication Number: 83328850, Rev. B, Printed in USA