
S T 1 5 1 5 0 D C   B A R R A C U D A 4    SEAGATE
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders    3711|     |     |
Capacity form/unform  4294/ 5062 MB        Heads          21|     |     |
Seek time   / track   8.5/     ms          Sector/track     |     |     |
Controller           SCSI2 DI/WI/SCA/FAST  Precompensation
Cache/Buffer          1024 KB MULTI-SEGMEN Landing Zone
Data transfer rate    6.000 MB/S int       Bytes/Sector      512
                     20.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 50    |    -40 70
Power: sleep              W     Humidity     %                 |
       standby            W     Altitude    km                 |
       idle          12.5 W     Shock        g                 |
       seek               W     Rotation   RPM      7200
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit
                                MTBF         h     800000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,IEC950,UL1950,VDE        

**********************************************************************
                        L   A   Y   O   U   T
**********************************************************************
SEAGATE  ST15150WC/DC  INSTALLATION GUIDE 83328870, REV. D 1/95






       +---------------------------------------------+
       |                                         +-+ |
       |                                         | | |
       |                                       J4| | |
       |                                         +-+ |
       |                                             |
       +--------XXXXXXXXXXXXXXXXXXXXXXXXXXXX---------+
                           J6








**********************************************************************
                      J   U   M   P   E   R   S
**********************************************************************
SEAGATE  ST15150WC/DC BARRACUDA 4  INSTALLATION GUIDE 83328870, REV. D


 WC/DC Setting the SCSI ID jumpers
 ---------------------------------
 The SCSI ID for WC and DC drives is normally set over the SCSI bus
 by the host system using connector contacts 39 (ID0), 40 (ID2), 79
 (ID1), and 80 (ID3). Systems designers may, optionally, install a
 remote operator panel connection to set the SCSI ID.

 SCSI ID - LW/LWD Models
 -----------------------
   +----------+-------------------------------+
   | SCSI ID  |       Jumper Location         |
   |          |             PINS              |
   |          |  ID3  |  ID2  |  ID1  |  ID0  |
   +----------+-------+-------+-------+-------+
   |    0     | OPEN  | OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    1     | OPEN  | OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    2     | OPEN  | OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    3     | OPEN  | OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    4     | OPEN  | CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    5     | OPEN  | CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |    6     | OPEN  | CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |    7     | OPEN  | CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |    8     | CLOSED| OPEN  | OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |    9     | CLOSED| OPEN  | OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   10     | CLOSED| OPEN  | CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   11     | CLOSED| OPEN  | CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+
   |   12     | CLOSED| CLOSED| OPEN  | OPEN  |
   +----------+-------+-------+-------+-------+
   |   13     | CLOSED| CLOSED| OPEN  | CLOSED|
   +----------+-------+-------+-------+-------+
   |   14     | CLOSED| CLOSED| CLOSED| OPEN  |
   +----------+-------+-------+-------+-------+
   |   15     | CLOSED| CLOSED| CLOSED| CLOSED|
   +----------+-------+-------+-------+-------+


 Terminating the drive
 ---------------------
 ST15150WC and ST15150DC drives do not have internal terminators or
 any other way of adding internal termination to the drive. You must
 provide single-ended external active termination (ANSI SCSI-2
 Alternative 2) to these drives when termination is required.
 Synchronizing spindles Spindle synchronization for WC and DC drives
 is normally handled on the SCSI bus by the host system using
 connector contact 37 for the spindle synce reference signal. System
 designers may, optionally, install a spindle sync cable using pin 6
 on the J4 connector to provide +SSREF.


 DC drives
 ---------
 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; therefore the lower-numbered SCSI IDs are
 normally used for other SCSI devices such as this Barracuda disc
 drive. Most Barracuda disc drives are factory set with the SCSI ID
 set at 0. To change the SCSI ID, refer to the appropriate drive
 section for your model.

 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. After completing the installation process, if
 the drive's LED does not show on/off activity when the host 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.


 Drive termination
 -----------------
 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.


 Terminator power
 ----------------
 You usually will not need to change this option and can normally
 leave the drive configured as it was shipped from the factory.


 Synchronizing spindles
 ----------------------
 If you are installing two or more Barracuda drives, you may
 synchronize their spindles to reduce the latency associated with
 switching from one drive to another. Spindle sync cables are used to
 connect the drives. After connecting each drive with spindle sync
 cables, designate a master spindle sync reference source. This master
 source is usually 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.


 Other applicable jumper options
 -------------------------------
 Barracuda 4 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.


 Providing adequate cooling
 --------------------------
 The enclosure design must ensure adequate cooling for the drive. The
 maximum ambient temperature is 50 o C.


 Terminating the W/WD drive
 --------------------------
 Terminating the drive To terminate the ST15150W drive, enable the
 permanently mounted IC active terminators by installing an Enable
 Drive Terminator jumper on J4 pins 11 and 12. If you install one of
 these models and it is not on the end of the SCSI bus, remove the
 jumper to disable the permanently mounted IC terminators and thereby
 remove internal termination from the drive. The ST15150WD drive does
 not have internal terminators or any way of adding internal
 termination. You must provide external active termination (ANSI
 SCSI-2 Alternative 2) to the drive when termination is required.


 W/WD drives Terminator power
 ----------------------------
 There are four possible terminator power configurations for the
 ST15150W drive. You will not normally need to change this option and
 can leave the drive configured as it was shipped from the factory.
 The ST15150WD drive should be configured with a jumper connecting J01
 pins 1 and 3 (and no jumper on J01 pins 2 and 4).


 WC/DC drives Connecting remote LED
 ----------------------------------
 Remote LED connections are provided on the J4 connector. You can
 connect 2-pin remote LEDs using these connections. Attach the (-)
 lead to the appropriate pin and then attach the (+) lead to the pin
 labelled +5V.



**********************************************************************
                      I   N   S   T   A   L   L
**********************************************************************
SEAGATE  ST15150  PRODUCT MANUAL

 Notes On Installation
 =====================

 Mounting the drive and connecting cables
 ----------------------------------------
 Note. This mounting procedure does not apply to WC or DC model
 drives. To mount a WC or DC drive, plug the drive into the system's
 singleconnector attachment (SCA) position on the system's back panel.
 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.

   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. The maximum length
   that the screws should extend into the chassis mounting holes is
   0.15 inch (3.81 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.



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
SEAGATE  ST15150  PRODUCT MANUAL

 General description
 -------------------
 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. In either case,
 the disc drive must receive adequate cooling and it must be
 sufficiently grounded and shielded from emissions.


 SCSI ID
 -------
 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. After completing the installation process, if
 the drive's LED does not show on/off activity when the host 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.


 Providing adequate cooling
 --------------------------
 The enclosure design must ensure adequate cooling for the drive. The
 maximum ambient temperature is 50*C. 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.



**********************************************************************
                      G   E   N   E   R   A   L
**********************************************************************
SEAGATE   SUPPORT SERVICES

 Seagate Technology
 ------------------
 Technical Support Services
 If you need assistance installing your drive, consult your dealer.
 Dealers are familiar with their unique system configurations and can
 help you with system conflicts and other technical issues. If you
 need additional assistance with your Seagate(r) drive or other
 Seagate products, use one of the Seagate technical support services
 listed below.

 SeaFONE at 1-800-SEAGATE (1-800-732-4283)
 Seagate's 800 number allows toll-free access to automated self-help
 services, providing answers to commonly asked questions,
 troubleshooting tips and specifications for disc drives and tape
 drives. This service is available 24 hours daily and requires a
 touch-tone phone. If you need to speak to a technical support
 engineer, dial this number and listen to the options for technical
 support. (International callers can also reach this automated
 self-help service by dialing 408-456-4496).


 Seagate Technology online services
 Using a modem, you can obtain troubleshooting tips, free utility
 programs, drive specifications and jumper settings for Seagate's
 entire product line. You can also download software for installing
 and analyzing your drive.

 SeaNET
 You can obtain technical information on Seagate drives, Seagate
 software and much more over the Internet from Seagate's World Wide
 Web home page (http://www.seagate.com) or Seagate's ftp server
 (ftp://ftp.seagate.com).

 You may also send E-mail with your questions to DiscSupport@
 Seagate.com or TapeSupport@Seagate.com.


 SeaBOARD
 SeaBOARD is a computer bulletin board system (BBS) that contains
 information about Seagate's disc and tape drive products and is
 available 24 hours daily. Set your communications software to eight
 data bits, no parity and one stop bit (8-N-1). SeaBOARD phone numbers
 are listed in the following table.

 BBS Location           Modem number
 United States      Disc: 408-434-1080; Tape: 408-456-4415
 England            44-1628-478011
 France                         33 1-48 25 35 95
 Germany            49-89-140-9331
 Singapore          65-292-6973
 Thailand           662-531-8111
 Australia          61-2-9756-2359
 Taiwan             886-2-719-6075

 Seagate CompuServe forum
 Online technical support for Seagate products is available on
 CompuServe. To access our technical support forum, type go seagate.
 This forum provides information similar to that found on SeaBOARD.
 In addition, you can type questions or browse through previous
 questions and answers on the forum messages.

 Seagate Technology FAX services
 SeaFAX
 You can use a touch-tone telephone to access Seagate's automated FAX
 system to receive technical support information by return FAX. This
 service is available 24 hours daily.
 Location               Telephone number
 United States          1-800-SEAGATE or 408-456-4496
 England                44-1628-894084
 Australia              61-2-9756-5170

 Seagate technical support FAX
 You can FAX questions or comments to technical support specialists 24
 hours daily. Responses are sent during business hours.
 Location               FAX number
 United States          408-944-9120
 England                        44-1628-890660
 France                 33 1-46 04 42 50
 Germany                        49-89-1430-5100
 Australia              61-2-9725-4052
 Singapore              65-293-4722
 Hong Kong              852-2368 7173
 Taiwan                 886-2-715-2923
 Korea                          82-2-556-7294/4251


 Seagate technical support
 You can talk to a technical support specialist during business hours
 Monday through Friday for one-on-one technical help.  Before calling,
 note your system configuration and drive model number (STxxxx). There
 are several technical support phone numbers available for various
 Seagate products.

 Location          Telephone  number
 United States Please dial 1-800-SEAGATE for the specific product
               telephone number.
               (6:00 A.M. to 11:15 A.M., 12:30 P.M. to 5:00 P.M.,
               Pacific time, M-F)
 England       44-1628-894083 (10:00 A.M. to 1:00 P.M., 2:00 P.M. to
               5:00 P.M., M-F)
 France        33 1-41 86 10 86 (9:30 A.M. to 12:30 P.M., 2:00
               P.M. to 5:00 P.M., M-F)
 Germany       Disc: 49-89-140-9332; (9:30 A.M. to 12:30 P.M., 2:00
               P.M. to 4:00 P.M., M-F)
               Tape: 49-89-140-9333
 Australia     61-2-9725-3366 (9:00 A.M. to 5:00 P.M., M-F)
 Singapore     65-290-3998 (9:00 A.M. to 12:00 P.M., 2:00
               P.M. to 5:00 P.M., M-F)
 Hong Kong     852-2368 9918
 Taiwan        886-2-514-2237
 Korea         82-2-556-8241


 SeaTDD 408-944-9121
 Using a telecommunications device for the deaf (TDD), you can send
 questions or comments 24 hours daily and exchange messages with a
 technical support specialist between 6:00 A.M. to 11:15 A.M. and
 12:30 P.M. to 5:00 P.M. (Pacific time) Monday through Friday.


 Customer Service Centers
 Seagate direct OEM, Distribution, System Integrator and Retail
 customers should contact your Seagate Service Representative for
 warranty information.  Other customers contact your place of
 purchase.  Seagate offers comprehensive customer support for all
 Seagate drives.  Seagate customer service centers are the only
 facilities authorized to service Seagate drives. These services are
 available worldwide.

 Location                       Telephone number                FAX number
 United States          1-800-468-3472;                 405-949-6740
 Other Americas
 (Canada & Brazil)      405-949-6706;               405-949-6738
 Mexico                         525-546-6965;                   525-546-4888
 Europe, Middle
 East & Africa          31-2065-43300;              31-2065-34320
 Asia Pacific &
 Australia              65-485-3595;                    65-485-4980
 Japan                          81-3-5462-2904;                 81-3-3462-2979


 Seagate, Seagate Technology and the Seagate logo are registered
 trademarks of Seagate Technology, Inc. SeaFAX, SeaFONE, SeaBOARD,
 SeaTDD, SeaNET, Medalist and DiscWizard are either trademarks or
 registered trademarks of Seagate Technology, Inc. or one of its
 subsidiaries. All other trademarks or registered trademarks are the
 property of their respective owners.


