Seagate ST31200W User manual

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Installation Guide
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HAWK 1LP Family:
(Wide bus)
ST31200W/WD/WC
ST3620W

Contents
Introduction ........................................................ 1
Electromagneticinterference ............................ 1
Before you begin ................................................ 3
Installation overview .......................................... 8
Product Repair.................................................... 10
Shipping ......................................................... 11
Product Repair and return information ........... 11
Technical support services ............................... 12
Hawk 1LP (wide) product information .............. 15
Initial set-up information.................................... 17
Drive configuration............................................. 22
Drive installation................................................. 33
© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 77767468, Revision B.
May 1994
Seagate®,SeagateTechnology®andtheSeagatelogo
areregisteredtrademarksofSeagateTechnology,Inc.
HawkTM, SeaFAXTM, SeaFoneTM, SeaTDDTM and
SeaBOARDTM aretrademarksofSeagateTechnology,
Inc.Otherproductnamesareregisteredtrademarksor
trademarks of their own.
Seagate reserves the right to change, without notice,
product offerings or specifications. No part of this
publication may be reproduced in any form without
written permission of Seagate Technology, Inc.

Hawk 1LP (Wide) Installation Guide, Rev. B 1
Introduction
Thismanualisorganizedtoassistyouintheinstallation
and operation of your Seagate Hawk 1LP (wide bus)
family disc drive. Family models are listed in the Prod-
uct Information section. It also provides information to
aid in obtaining service for the drive. The Hawk 1LP
(wide) family drives have a 16 bit data interface.
Beforeattemptinganyinstallation,pleasereadthrough
all applicable sections of this document, including all
warnings and cautions.
Warning.
This equipment generates,uses,andcanradiateradio
frequency energy and if not installed and used in
accordance with these instructions, may cause inter-
ference to radio communications.
Electromagnetic interference (EMI) con-
siderations
The drive(s) described herein, as delivered, are de-
signed for system integration and installation into a
suitable enclosure prior to use. As such, the drive(s)
described herein are supplied as a sub-assembly and
arenotsubjecttoSubpartJofPart15oftheFCCRules

2 Hawk 1LP (Wide) Installation Guide, Rev. B
and Regulations nor the Radio Interference Regula-
tionsoftheCanadianDepartmentofCommunications.
However,theunithasbeentestedusingpropershield-
ing and grounding and found to be compliant with the
ClassAlimitsoftheFCCRulesandtheRegulationsof
the Canadian Department of Communications.
The physical design characteristics of the drive(s)
described herein, serve to minimize EMI radiation
when installed in an enclosure that provides reason-
able shielding. As such, the drive(s) are capable of
meeting the Class B limits of the FCC Rules and the
RegulationsoftheCanadianDepartmentofCommuni-
cations.
Note. Itistheendusers'responsibilitytoassurethat
the drive(s)describedherein meetthe appro-
priate EMI requirements of their system.
Shielded I/O cables may be required if the
enclosure does not provide adequate shield-
ing.IfI/Ocablesare externaltotheenclosure,
shieldedcablesshouldbeused,withtheshields
grounded to the enclosure and to the host
controller.

Hawk 1LP (Wide) Installation Guide, Rev. B 3
Before you begin
Verify that the system is switched off and discon-
nected from main power before any installation is
attempted.
Protect yourself, the drive, and your valuable pro-
grams and data by reading the following cautions
and warnings.
•Donottamperwith sealedtop cover.Doing sovoids
your warranty. The drive contains no user service-
able components. See Product Repair section for
more information.
•Visually inspect the shipping container for any obvi-
ous damage.
•Verifyallpartslistedonshippingbillarereceivedwith
theequipment. Discrepanciesor damageshould be
reported to the shipping company.
•Inspectdriveforpossibleshippingdamage.Allclaims
of this type should be filed promptly with the trans-
porterinvolved.Saveoriginalpackingmaterialstobe
used when reshipping.

•When transporting or shipping a drive or system,
please ensure that they are correctly packed in
original Seagate approved (or equivalent) container
and shipped via an air-ride carrier experienced in
handling computer equipment.
•Donotunpackdrive fromits staticshielded baguntil
you are ready to install it in the system.
•Always handle the drive by the frame or casting.
•Do not touch Printed Circuit Board (PCB) or the I/O
connector pins.
•Never apply pressure to the PCB or to the drive top
cover
4 Hawk 1LP (Wide) Installation Guide, Rev. B

Hawk 1LP (Wide) Installation Guide, Rev. B 5
Caution. The circuit assemblies and components
containedinthisequipmentcanbedegraded
or destroyed by Electrostatic Overstress
(EOS) or by Electrostatic Discharge (ESD).
Static electrical charges can accumulate
quickly on personnel, clothing and synthetic
materials.Theelectrostaticfieldsduetothese
charges when brought in close proximity to
susceptible circuit assemblies and compo-
nents, can result in degraded reliability or
immediatefailureof the affectedcomponent
or assembly.
Toinsureoptimumreliableequipmentopera-
tion, it is required that technical support per-
sonnel discharge themselves by wearing a
grounding strap around the wrist and be
connectedtoagroundingterminalwhilework-
inginthevicinityof,andwhilehandlingEOS/
ESDsusceptibleassemblies/parts.Ifunavail-
able,ground yourselffrequently bytouching
the metal chassis of the system before han-
dling any components (this helps only if the
system is connected to a ground). Avoid
static-inducing carpeted areas. This proce-
dure is especially important when handling
printed circuit boards (PCB's).

Safety instructions
1. The disc drive(s) are to be installed in a customer
suppliedenclosurewherethesurroundingairdoes
not exceed 50oC.
2. Four (4) 6-32 UNC-2A screws are required for
installation. Maximum screw length into side of
drive is 0.15 inches (3.81 mm). Maximum screw
lengthintobottomis0.20in.(5.08mm).Maximum
screw tightening torque is 6.0 in-lb (.675 NM) with
minimum thread engagement of 0.12 in (3.0 mm).
3. ThepowerrequirementsareshownintheProduct
Informationsection.
4. The power supply must satisfy the safety require-
ments for SELV (Safety Extra Low Voltage) cir-
cuits.
5. Service is to be provided by trained Seagate ser-
vice personnel.
6. The incorporation of the disc drives listed in this
guide into a customer enclosure must meet the
appropriate safety requirements of the country in
which it is used (e.g. UL 1950, CAN/CSA-C22.2
No.950-M89,DINVDE0805/05.90andEN60950:
1988 (IEC 950).
Note.
Powermust beoff whenconnectingordisconnecting.
6 Hawk 1LP (Wide) Installation Guide, Rev. B

Sicherheitsanleitung
1. DäsGerätisteinEinbaugerät,vorgesehenfüreine
maximale Umgebungstemperatur von 50oC.
2. Zur Befestigung des Drives werden 4 Schrauben
benötigt (6-32 UNC-2A). Die maximale Länge der
Schrauben in der unteren Seite des Chassis darf
nicht mehr als 0.20 in (5.08 mm) betragen, die in
der oberen 0.15 in (3.81 mm). Maximalle
Schraubenanziehung von 6.0 in-lb (.675 NM) mit
minimalemGewindeansperuch0.12in(3.00mm).
3. DieVersorgungsspannungenwerdeninderSektion
Produkt Information gezeigt.
4. Die Versorgungsspannung muss SELV entspre-
chen.
5. AlleArbeitendürfennurvonausgebildetemSeagate
Service-Personal durchgefürhrt werden.
6. Der Einbau des Drives muss den Anforderungen
gemässDINVDE0805/05.90oderEN60950:1988
(IEC 950).
Vorsicht
ÁnsehlussoderEntfernungolerGeräteverbindungnur
beiabgeschalteterVersorgungsspannungvornehmen.
Hawk 1LP (Wide) Installation Guide, Rev. B 7

Installation Overview
Installation of the drive can be divided into distinct
phases. Some of these may not be applicable to all
system installation requirements. Refer to the indi-
vidualdriveinstallationsectionsforspecificinformation
on your drive model.
•Drive configuration: Select those drive features
thatareappropriatetoinstallthedriveinthesystem.
In"W/WD"modelsthisisdonebyinstallingorremov-
ing user configuration jumpers found on the drive
PCB. For "WC" models, some of the configuration
parameters can be set over the 80 pin interface.
•Mechanical installation: After setting up the drive
configuration the drive must be mechanically in-
stalled into the host system and the power and I/O
cables attached. Previously mentioned precautions
should be observed.
•CMOS configuration: SCSI drives should not be
definedintheCMOS.TheSCSIhostadapterusesits
own BIOS to handle the Input/Output procedures.
TheCMOS setting forSCSIdrive iseitherdrivetype
zero, or the no drive installed option.
8 Hawk 1LP (Wide) Installation Guide, Rev. B

•Low-Level formatting: All Hawk 1LP wide family
drive models are low-level formatted at the factory
and do not require this step during installation. If an
installeddriveislow-levelformatted,alluserdatawill
be lost.
Note: SeagateTechnologyassumesnoliabilityforlost
user data.
•Partitioningandhighlevelformatting:A drivecan
be sub-divided into "partitions" which behave as
individual drives within the system. Consult the sys-
tem documentation for instructions on partitioning
and high level formatting. Information is also avail-
able in bookstores and libraries.
Hawk 1LP (Wide) Installation Guide, Rev. B 9

Product repair information
Service requirements
The special facilities required for the manufacture of
these drives generally prohibit repair in the field. If
problemsoccurduringinstallation,pleasecontactyour
supplierforassistance.Donotattempttodisassemble
or repair. Drives should be sent to the repair depot
through the purchase source, if possible. Please ob-
serve the following cautions.
Caution.
•Handle drive with care. Do not drop, or bump hard.
•Never remove the cover of these disc drives. Serv-
icingitems inthe sealedHDA(heads, media,actua-
tor,etc.)requirespecial facilities.The drivecontains
no user purchasable parts or PCBs.
•Opening the sealed HDA voids the drive warranty.
•Applying a soldering device to the components on
the PCB voids the drive warranty.
•Do not connect or disconnect cables without first
removing power from the drive.
10 Hawk 1LP (Wide) Installation Guide, Rev. B

•Place drive on a flat, static dissipative surface and
handle with extreme care. Always follow all EOS/
ESD precautions to avoid damage to the electrical
assemblies.
Shipping:
When transporting or shipping a drive, a Seagate
approved container must be used. Keep your original
box. They are easily identified by the Seagate Ap-
proved Package label. Shipping a drive in a non-
approved container voids the drive warranty.
Seagate repair centers may refuse receipt of compo-
nents improperly packaged or obviously damaged in
transit.ContactyourAuthorizedSeagateDistributorto
purchaseadditionalboxes.Seagaterecommendsship-
ping by an air-ride carrier experienced in handling
computerequipment.
Product repair and return information
Seagatecustomerservicecentersaretheonlyfacilities
authorized to service Seagate drives. Seagate does
notsanction anythird-partyrepair facilities.Anyunau-
thorizedrepairortamperingwiththefactory-sealvoids
the warranty.
Hawk 1LP (Wide) Installation Guide, Rev. B 11

12 Hawk 1LP (Wide) Installation Guide, Rev. B
Warranty: Contactyour SeagateAuthorized Distribu-
tor, Dealer or other purchase source for warranty
information.
If the drive is no longer under warranty contact pur-
chasesourceforrepairinformationorrefertonumbers
listed in section Technical Support Services.
Technical support services
SeagateTechnologyprovidestechnicalsupportlitera-
ture and diagnostic utilities to Authorized Distributors.
Please contact your dealer for technical support and
installation troubleshooting. Product Technical Sup-
port is available for all Seagate products by calling the
SeaFAX,SeaFone,SeaTDD orSeaBOARDservices.
These are toll calls.
SeaFAX number : United States 408/438-2620
England 44-62-847-7080
You can use a Touch-Tone telephone to access
Seagate's automated FAX delivery system and select
technicalsupportinformationbyreturnFAX.Thisserv-
ice is available 24 hours a day, 7 days a week.

SeaFone telephone number: 408/438-8222
The enhanced phone system provides recorded tech-
nical information on selected Seagate products while
you are on hold. Technical support specialists are
availabletoanswerquestionsfrom8:00AMto5:00PM
PST, Monday through Friday. Recordings are acces-
sible 24 hours a day, 7 days a week.
SeaTDD telephone number: 408/438-5382
TDD is a Telecommunication Device for the Deaf
wheretwo peoplecan communicate usinga keyboard
that is connected to the phone line. A TDD device is
requiredtoaccessthisservice.Thisserviceisavailable
from8:00AMto5:00PMPST,MondaythroughFriday.
SeaBOARD service:
TheSeagateTechnicalSupportBulletinBoardSystem
(BBS) is available 24 hours a day, 7 days a week. A
modem is required to access this service. (300–9600
baud, 8-N-1). This is a toll call.
Hawk 1LP (Wide) Installation Guide, Rev. B 13

With this service you can access:
•Specifications and jumper configurations for all
Seagate products.
•Reprints of Seagate documentation.
•Adirectoryofinformationandhelpfulutilitiesthatyou
can download to your own computer.
BBS Modem
Location Number
USA, Mexico, Latin America 408/438-8771
Canada 416/856-5581
England 44-62-847-8011
France 33-1-40-67-1034
Germany 49-89-140-9331
Singapore 65-292-6973
Australia 61-2-756-2359
Korea 82-2-556-7294
Note: These are toll calls
14 Hawk 1LP (Wide) Installation Guide, Rev. B

Hawk 1LP family (Wide) information
Characteristics of the various drives covered by this
manual are listed in the following table.
Legend for table column meanings:
A = capacity, unformatted megabytes
B = capacity, formatted megabytes [1]
C = number of cylinders, user accessible
D = number of heads
E = + 5 V typical current [2], Amps
F = +12 V typical current [2], Amps
Model A B C D E F
ST31200W 1258.8 1055.28 2700 9 .73 .57
ST31200WD 1258.8 1055.28 2700 9 .73 .57
ST31200WC 1258.8 1055.28 2700 9 .73 .57
ST3620W 651.8 545.9 2700 5 .73 .57
"Wide" family products have a 16 bit SCSI data bus
rather than the normal 8 bit data bus.
Notes.
[1] Standardunitsarefactoryformattedwith512databytes
per sector with nine spare sector per cylinder and 2
cylinders at inner tracks reserved for spares in addition
to capacity listed.
[2] Measured with an average reading DC ammeter. In-
stantaneous +12 V current peaks will exceed these
values.
Hawk 1LP (Wide) Installation Guide, Rev. B 15

Initial set-up information
For the initial setup connect the cables or plug into a
mounted connector (if applicable), set the drive ID on
the bus and enable or disable the I/O line terminator
resistor packs (Hawk 1LP family "W" models only).
Theseproceduresaredescribedinparagraphsfollow-
ing. Note whether drive model number ends in W, WD
or WC.
SCSI interface cable connection
The Hawk 1LP family wide drives are SCSI interface
drives.Systemconnectionon"W"and"WD"modelsis
via a 68 pin SCSI connector. System connection for
"WC" models is via an 80 pin SCSI and DC power
connector.The"WC"modelplugsdirectlyintoaPCBor
bulkhead mounted mating 80 pin connector. Pin 1 is
notedinFigure2.Somecableshaveacontrastingcolor
stripeononeedgetoindicatepin1. On the Hawk1LP
wide drives the I/O connector is keyed by virtue of its
shape. There is only one way it can mate with the
matinginputconnector.Strainreliefisrecommendedat
the cable in drives using cables. Do not block system
cooling air flow in routing of cables.
16 Hawk 1LP (Wide) Installation Guide, Rev. B

J1-DC Power
Connector
Pin
1P
2P
3P
4P
Power
+12V
+12V ret
+ 5V ret
+ 5V
J1
1P2P3P4P
68 Pin SCSI I/O
Connector
J1-Auxiliary
Hawk 1LP (Wide) Installation Guide, Rev. B 17
DC Power connection
Hawk 1LP family "W/WD" model drives receive DC
power through a 4 pin connector mounted on the PCB
in line with the SCSI I/O connector. See figure below.
Figure 1. DC power connection, 68 pin SCSI I/O
connector
Hawk 1LP "WC" model drives receive power from the
host computer through the 80 pin combined SCSI I/O
andpowerconnector. Noseparate DCpowerconnec-
tor is provided on the drive (See Figure 2b).
SCSI address selection
On "W" and "WD" model drives , make sure that the
SCSI bus address jumper(s) are properly set for the
bus address assigned to the drive. See figures 3a and
3b showing the bus address select header and the
jumperconfigurations thatselectaddresses0 through
15.TypicallytheprimarybootdeviceissettoID0, and
thesubsequentSCSIdrivesarejumperedinascending

order.Busaddresses0through14shouldbeused(the
host adapter usually uses address 15). If the drive
"Busy" LED shows no on/off activity when the host is
tryingtocommunicatewithit,anincorrectbusaddress
selection at the drive should be suspected.
On"WC"modeldrives theSCSIIDcanbeandpresum-
ably will be, set over the 80 pin interface by the host
computer. Unless directed to do so by the system
documentation, no jumpers should be installed for
address selection. On "WC" model drives , the host
system also has complete control over motor start
functions, so no Motor Start or Delayed Motor Start
Jumpers should be installed.
Terminator resistor packs
As a factory installed option, Hawk 1LP family model
"W" drivescanhaveterminatorresistorpacksthatare
permanently installed, but can be enabled or disabled
by jumper plug. See jumper in Figure 3a. If you are
installing a single drive, the terminator resistor packs
mustremainenabled. Ifyouareinstallingmultiplehard
discdrives,disabletheterminationresistorpacksfrom
all the drives but the one connected to the end of the
SCSI I/O cable.
18 Hawk 1LP (Wide) Installation Guide, Rev. B