
M A R A T H O N   S L   2 6 0    SEAGATE
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 2.5"/SUPERSLIMLINE    Cylinders        |  569|  939|
Capacity form/unform   262/      MB        Heads           4|   15|   14|
Seek time   / track  17.0/ 6.5 ms          Sector/track     |   60|   39|
Controller           IDE / ATA2 FAST/ENHA  Precompensation
Cache/Buffer           120 KB ADAPTIVE     Landing Zone
Data transfer rate    3.500 MB/S int       Bytes/Sector      512
                     13.300 MB/S ext DMA
Recording method                                    operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 70
Power: sleep          0.2 W     Humidity     %         8 80    |      8 90
       standby        0.2 W     Altitude    km    -0.304  3.048| -0.304 12.192
       idle           0.7 W     Shock        g       100       |    250
       seek           1.7 W     Rotation   RPM      3980
       read/write     1.7 W     Acoustic   dBA        25
       spin-up            W     ECC        Bit   ON THE FLY
                                MTBF         h     300000
                                Warranty Month        36
Lift/Lock/Park     YES          Certificates     CSA,FCC,IEC380,IEC435,IEC9...


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                        L   A   Y   O   U   T
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SEAGATE  ST9300/9240/9150AG  PRODUCT MANUAL 36253-001, REV. B, 09/1994

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |XXI
  |                                                         |XXN
  |                                                         |XXT
  |                                                         |XXE
  |                                                         |XXR
  |                                                         |XXF
  |                                                         |XXA
  |                                                         |XXC
  |                                                         |XXE
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |  1
  |                                                         |XXJumper
  +---------------------------------------------------------+




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                      J   U   M   P   E   R   S
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SEAGATE  ST9300/9240/9150AG  PRODUCT MANUAL 36253-001, REV. B, 09/1994

 Jumper Setting
 ==============


 +--+  +Jumper--------Interface-----------------------------+  +--+
 |  +--+Bo oD   o o o o o o o o o   o o o o o o o o o o o o +--+  |
 |  |  |Ao oC   1 o o o o o o o o o o o o o o o o o o o o o |  |  |
 |  |  +--+-------------------------------------------------+  |  |
 |  +-----+----------------------------------------------------+  |
 +--------+-------------------------------------------------------+
          |
         o o    Drive is master; slave may be detected using DASP-
         o o    signal

         o X    Drive is master; Seagate slave drive present
         o X

         X o    Drive is slave; Seagate master drive present
         X o

         X X    Use CSEL pin grounding to differate master from slave
         X X


 Master/slave configuration
 --------------------------
 You must establish a master/slave relationship between multiple
 drives attached to a single AT bus. You can configure a drive to
 become a master or slave by setting the master/slave jumpers.

 If only one jumper is installed or if neither jumper is installed,
 then the jumper settings on each drive determine whether that drive
 is a master or a slave.

 Alternatively, you can configure an ST9300 family drive as a master
 or slave using the cable select option. This requires a specialized
 daisy-chain cable that grounds pin 28 (CSEL) on one of its two drive
 connectors. If you attach the drive to the grounded CSEL connector,
 it becomes a master. If you attach the drive to the ungrounded CSEL
 connector, it becomes a slave. To use this option, the host system
 and both drives must support cable select. To configure an ST9300
 family drive for cable select, install both master/slave jumpers.

 Regardless of which jumper settings are used, the slave drive must
 assert the DASP- signal at power up and the master drive must monitor
 DASP- at power up for the slave to be recognized.
 +---------+----------+-------------------------------------------+
 | Jumper  | Jumper   |                                           |
 | for pins| for pins |                                           |
 | A and B | C and D  | CONFIGURATION                             |
 +---------+----------+-------------------------------------------+
 | OPEN    |  OPEN    | Drive is master; slave drive may be       |
 |         |          | detected using DASP- signal. CSEL is      |
 |         |          | ignored.                                  |
 +---------+----------+-------------------------------------------+
 | OPEN    |  CLOSED  | Drive is master; slave drive is present.  |
 |         |          | CSEL is ignored. DASP- is ignored.        |
 +---------+----------+-------------------------------------------+
 | CLOSED  |  OPEN    | Drive is slave (a master drive should be  |
 |         |          | present also). CSEL is ignored.           |
 +---------+----------+-------------------------------------------+
 | CLOSED  |  CLOSED  | Differentiate master and slave drives     |
 |         |          | using cable select: If a drive is attached|
 |         |          | to a connector in which pin 28 is         |
 |         |          | grounded, then it becomes a master. If a  |
 |         |          | drive is attached to a connector in which |
 |         |          | pin 28 is ungrounded, then it becomes a   |
 |         |          | slave.                                    |
 +---------+----------+-------------------------------------------+

 Remote LED
 ----------
 The drive indicates activity to the host through the DASP- line (pin
 39) on the ATA interface. This line may be connected to a drive
 status indicator driving an LED at 5V. The line has a 30 mA nominal
 current limit.



**********************************************************************
                      I   N   S   T   A   L   L
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SEAGATE  ST9300/9240/9150AG  PRODUCT MANUAL 36253-001, REV. B, 09/1994

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

 Mounting the drive
 ------------------
 You can mount ST9300 family drives in any orientation. Allow a mini-
 mum clearance of 0.030 inches (0.76 mm) around the entire perimeter
 of the drive for cooling.These drives conform to the industry-
 standard MCC direct-mounting specifications and require the use of
 MCC-compatible connectors in direct-mounting applications.

 NOTE
 The I/O connector pins may extend up to 0.010 inches beyond the edge
 of the head/disc assembly.

 CAUTION
 To avoid damaging the drive:

 - Use M3X0.5 metric mounting screws only.

 - Do not insert mounting screws more than 0.150 inches (3.81
   mm) into the mounting holes.

 - Do not overtighten the screws (maximum torque: 3 inch-lb).


 Handling and static-discharge precautions
 -----------------------------------------
 After unpacking, and before installation, the drive may be exposed to
 potential handling and ESD hazards. It is mandatory that you observe
 standard static-discharge precautions. A grounded wrist-strap is pre-
 ferred.

 Handle the drive only by the sides of the head/disc assembly. Avoid
 contact with the printed circuit board, all electronic components
 and the interface connector. Do not apply pressure to the top cover.
 Always rest the drive on a padded antistatic surface until you mount
 it in the host system.


 Attaching Cables
 ----------------
 This drive is designed for a host computer that supplies interface
 signals and +5V power through a single 44-pin connector and cable.


 ATA interface
 -------------
 The ST9300 family drives use the industry-standard ATA task file
 interface. The drives support both 8-bit and 16-bit data transfers.
 They support ATA programmed input/output (PIO) modes 0, 1 and 3, as
 well as ATA single-word DMA modes 0, 1 and 2, and ATA multiword DMA
 modes 0 and 1. The ST9300 family drives also support the use of the
 IORDY signal to provide reliable high-speed data transfers.

 The drives can differentiate between a hard reset and a soft reset
 while in Sleep mode. You can use a daisy-chain cable to connect two
 drives using the same AT host bus.


 Interface connector
 -------------------
 The drive connector is a 44-conductor connector with 2 rows of 22
 male pins on 0.079-inch (2 mm) centers (see Figure 4). The mating
 cable connector is a 44-conductor, nonshielded connector with 2 rows
 of 22 female contacts on 0.079-inch (2 mm) centers. The connectors
 should provide strain relief and should be keyed with a plug in
 place of pin 20.

 The ST9300 family drives are designed to support the industry-
 standard MCC direct-mounting specifications. When installing these
 drives in fixed mounting applications, use only MCC-compatible
 connectors such as Molex P/N 87368-442x. For applications involving
 flexible cables or printed circuit cables (PCCs), use Molex part
 number 87259-4413 or equivalent to connect the drive to the system.
 Select a connector that provides adequate clearance for the master/
 slave configuration jumpers if the application requires the use of
 such jumpers. The ATA interface cable should be no more than 18
 inches long.

 Pin 28 Cable Select
 Pin 40 Ground
 Pin 41 +5 Volts DC (logic)
 Pin 42 +5 Volts DC (motor)
 Pin 43 Ground fro power pins
 Pin 44 RESERVED


 AT Bus Signal Levels
 --------------------
 Signals that the drive sends have the following output
 characteristics at the drive connector:

 Logic Low     0.0V to 0.4V
 Logic High    2.5V to 5.25V

 Signals that the drive receives must have the following input
 characteristics, measured at the drive connector:

 Logic Low      0.0V to 0.8V
 Logic High     2.0V to 5.25V



**********************************************************************
                      F   E   A   T   U   R   E  S
**********************************************************************
SEAGATE  ST9300/9240/9150AG  PRODUCT MANUAL 36253-001, REV. B, 09/94


 ECC testing
 -----------
 When an ST9300 family drive performs hardware-based ECC error
 correction on-the-fly, the drive does not report an ECC error. This
 allows ECC correction without degrading drive performance. Some older
 drive diagnostic programs test ECC features by creating small data
 errors and then checking to see if they are reported. Such tests,
 when run on an ST9300 family drive, may incorrectly report an ECC
 detection failure because the drive hardware corrects the data
 automatically, avoiding the error rather than reporting it. Such a
 report does not indicate a drive malfunction.


 Power-management modes
 ----------------------
 Power management is required for low-power and portable computer
 systems. In most systems, you can control power management through
 the system setup program. The ST9300 family drives feature several
 power-management modes, which are described briefly below:

 Active mode
 -----------
 The drive is in Active mode during the read/write and seek
 operations.

 Idle mode
 ---------
 At power-on, the drive sets the idle timer to enter Idle mode after
 5 seconds of inactivity. You can set the idle timer delay using the
 system setup utility. In Idle mode, the spindle remains up to speed.
 The heads are parked away from the data zones for maximum data
 safety. The buffer remains enabled, and the drive accepts all
 commands and returns to Active mode any time disc access is
 necessary.

 Standby mode
 ------------
 The drive enters Standby mode when the host sends a Standby Immediate
 command. If the standby timer has been set by the host system, the
 drive can also enter Standby mode automatically after the drive has
 been inactive for a specifiable length of time. The standby timer
 delay is system-dependent and is usually established using the system
 setup utility. In Standby mode, the buffer remains enabled, the heads
 are parked and the spindle is at rest. The drive accepts all commands
 and returns to Active mode any time disc access is necessary.

 Sleep mode
 ----------
 The drive enters Sleep mode after receiving a Sleep Immediate command
 from the host. The heads are parked and the spindle is at rest. The
 drive leaves Sleep mode when a Hard Reset or Soft Reset command is
 received from the host. After receiving a soft reset, the drive exits
 Sleep mode and enters Standby mode with all current emulation and
 translation parameters intact.

 Rest mode
 ---------
 Some host systems reduce drive power consumption by removing all
 power from the drive, using a state known as Rest mode. As the drive
 enters Rest mode, the host saves drive state information (including
 current logical geometry, set feature parameters, cache status and
 task file registers) before powering down the drive. After power is
 restored, the host restores the drive to its prerest condition. Rest
 mode is implemented using three commands: Rest, Read Drive State and
 Restore Drive State. The Rest command prepares the drive for a
 subsequent Read Drive State command. The Read Drive State com-mand
 captures the state of the I/O registers. The Restore Drive State
 command reads the drive state data from memory and restores the drive
 state based on this data.

 Idle and standby timers
 -----------------------
 The drive sets the default time delay for the idle timer at power-on.
 In most systems, you can set this delay using the system setup
 utility. Each time the drive performs an Active function (read, write
 or seek), the idle and standby timers are reinitialized and begin
 counting down from their specified delay times to zero. If the idle
 timer reaches zero before any drive activity is required, the drive
 makes a transition to Idle mode. If the host has set the standby
 timer, the standby countdown continues. If the host has not set the
 standby timer, the drive remains in Idle mode. If the standby timer
 reaches zero before any drive activity is required, the drive makes a
 transition to Standby mode. In both Idle and Standby mode, the drive
 accepts all commands and returns to Active mode when disc access is
 necessary.

 Deferred spinup
 ---------------
 ST9300 family drives may be factory-configured for deferred spinup.
 If configured for deferred spinup, the drive does not spin up
 immediately after power-on but waits until a command is received from
 the host. At power-on, the drive posts a status of 80H and all
 master/slave protocols are completed before the drive reports a
 status of 50H. After the drive receives a command from the host, it
 executes the normal spinup/upload process. If the host issues a soft
 reset before the drive spins up, the drive responds normally, except
 that it does not spin up until receiving a command from the host.


 Formatting and partitioning the drive
 -------------------------------------
 CAUTION
 Formatting or partitioning a drive that contains data destroys that
 data. Make sure all data has been safely backed up before
 repartitioning or reformatting a drive. Seagate Technology assumes no
 liability for lost data.

 Low-level formatting
 --------------------
 Seagate AT Interface drives are low-level formatted at the factory
 and do not require additional low-level formatting before use.

 Partitioning
 ------------
 The partitioning process subdivides a single disc drive into
 partitions that behave as separate logical drives (labeled C, D, E,
 etc.). You can also set up the entire disc as a single partition.

 NOTE
 If you are using a version of DOS prior to Version 4.0, the operating
 system cannot access more than 32 Mbytes in a single partition.
 Therefore, you must divide a drive with a capacity of over 32 Mbytes
 into several smaller parti-tions. We do not recommend using ST9300
 family drives with DOS versions prior to Version 3.3.


 Seek Time         |  Typical read | Typical write
                   |  (msec)       | (msec)
 ------------------+---------------+---------------
 Track-to-track    |       6       |      7
 Average           |      16       |     20
 Full-stroke       |      26       |     28

 Average latency: 7.54 msec



**********************************************************************
                      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.


