
G O D R I V E   G R S   8 0   A T    QUANTUM
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 2.5"/SUPERSLIMLINE    Cylinders        |  966|     |
Capacity form/unform    84/      MB        Heads           2|    5|     |
Seek time   / track  17.0/ 5.0 ms          Sector/track     |   34|     |
Controller           IDE / AT              Precompensation
Cache/Buffer            32 KB LOOK-AHEAD   Landing Zone
Data transfer rate    2.900 MB/S int       Bytes/Sector      512
                      4.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 65
Power: sleep          0.2 W     Humidity     %        10 90    |     10 90
       standby        0.2 W     Altitude    km    -0.061  3.000| -0.061 12.000
       idle           1.7 W     Shock        g        10       |    100
       seek           2.2 W     Rotation   RPM      3600
       read/write     2.0 W     Acoustic   dBA        34
       spin-up            W     ECC        Bit   112,REED SOLOMON
                                MTBF         h     150000
                                Warranty Month        12
Lift/Lock/Park     YES          Certificates     CSA,FCC,IEC950,TUV,UL1950,VDE

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                        L   A   Y   O   U   T
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QUANTUM  GODRIVE GRS 80/160 AT  PRODUCT MANUAL 81-101804-01 JUNE 1992


  +----------------------------+++++++---------------+++++--+
  |                            +-+-+-+               +-+-+  |XX I
  |                             CS DS                  SP   |XX N
  |                                                         |XX T
  |                                                         |XX E
  |                                                         |XX R
  |                                                         |XX F
  |                                                         |XX A
  |                                                         |XX C
  |                                                         |XX E
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |XX
  |                                                         |
  |                                                         |XX
  +---------------------------------------------------------+



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                      J   U   M   P   E   R   S
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QUANTUM  GODRIVE GRS 80/160AT  PRODUCT MANUAL 81-101804-01 JUNE 1992

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

 GoDrive GRS 80/160 AT hard disk drives can be configured as a
 master or a slave drive, using either the jumper blocks on the
 drive's controller board or by grounding certain lines on the inter-
 face connector.

   XX|      SP                  DS CS
   XX|    +-+-+ +              +-+-+-+ +                       |
  /  +----+++++-+--------------+++++++-+-----------------------+
 Inter-         |                      |
 face!  +-------+---+         +--------+-------+
        | +-++-+    |         |+-++-++-+       |
        | ++++++Pins|         |+++++++++ Pins  |
        |   SP      |         |  DS CS         |
        | +*--*+    |         |+*--*+          |
        | +----+    |         |+----+Jumper    |
        | Jumper    |         | OR +*--*+      |
        +-----------+         |    +----+Jumper|
                              +----------------+


 There are two sets of jumper pins. The SP is labeld "SP" for slave
 present. The other set (three jumper pins) has two labels "CS" and
 "DS" for Cable Select and Drive Select. The center pin is common to
 both the CS and the DS positions.

 When a jumper block is on the center pin and the pin nearest the
 interface connector, DS is enabled. When a jumper block is on the
 center pin and the pin furthest from the interface connector, CS is
 enabled.


 NOTE
 Jumper blocks can be placed in a storage position by locating them on
 one jumper pin as shown in the following Figure.

       +-++-+               +-++-++-+
       ++++++Pins           +++++++++ Pins
         SP                   DS CS
          +*--*+                  +*--*+
          +----+Jumper            +----+Jumper


 Master Drive Configuration
 --------------------------
 GoDrive GRS 80/160 AT hard disk drives are configured at the
 factory as a master drive as defined by the CAM (Common Access
 Method). This configuration is shown in the following figure.

       +-++-+               +-++-++-+
       ++++++Pins           +++++++++ Pins
         SP                   DS CS
          +*--*+            +*--*+
          +----+Jumper      +----+Jumper


 Master Drive with Slave Present
 -------------------------------
 When GoDrive GRS 80/160 AT hard disk drives are configured as
 a master drive, the drive looks for a slave drive by monitoring the
 PDIAG/DASP lines.

 Some hard disk drives when configured as a slave do not indicate
 their presense on these two lines (GoDrive does). To indicate that a
 slave is present for these drive (when using GoDrive as a master),
 the slave present (SP) pins on GoDrive master must be jumpered as
 shown.
          +-++-+               +-++-++-+
          ++++++Pins           +++++++++ Pins
            SP                   DS CS
          +*--*+               +*--*+
          +----+Jumper         +----+Jumper


 Slave Drive Configuration
 -------------------------
 GoDrive drives can be configured as a slave drive as shown.

       +-++-+               +-++-++-+
       ++++++Pins           +++++++++ Pins
         SP                   DS CS
          +*--*+                  +*--*+
          +----+Jumper            +----+Jumper


 Cable Selection
 ---------------
 The drive can be configured such that its status as a master or slave
 drive can be determined by the cabling from the host system.

       +-++-+               +-++-++-+
       ++++++Pins           +++++++++ Pins
         SP                   DS CS
          +*--*+               +*--*+
          +----+Jumper         +----+Jumper

 NOTE
 This is extremely helpful when GoDrive GRS 80/160 AT is used
 as a removable subsystem where it can be either master drive or a
 slave drive depending upon the cable to which is connected.

 When a GoDrive is configured for cable selection, as shown in the
 Figure below, it is the master drive if Pin 28 is grounded and a
 slave if Pin 28 is not grounded.

 For systems that do not use Pin 28 for another purpose (e.g., Address
 Latch Enabled), the host system can tie Pin 28 to ground. Then the
 cable connecting the host to the master has Pin 28 enabled (i.e., a
 circuit exists), while the cable connecting the slave to either the
 host or the master has the Pin 28 line servered.

 Systems that use Pin 28 can use the cable selection method by
 performing the following:

   1. Connect the system cable in the following order
      host <--> slave <--> master.

   2. Cut the Pin 28 line between the slave and the master. This
      allow Pin 28 to operate normally (an open - served connection)
      between the host and the slave.

   3. Tie Pin 28 (within the master drive header) to a nearby ground
      (Pin 30, for example).

 This process will allow the master drive to have Pin 28 grounded
 while allowing the Pin 28 to be open between the host and slave
 drive.



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                      I   N   S   T   A   L   L
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QUANTUM  GODRIVE GRS 80/160AT  PRODUCT MANUAL 81-101804-01 JUNE 1992

 Notes on Installation
 =====================

 Installation direction
 ----------------------

     horizontally                           vertically
   +-----------------+             +--+                       +--+
   |                 |             |  +-----+           +-----+  |
   |                 |             |  |     |           |     |  |
 +-+-----------------+-+           |  |     |           |     |  |
 +---------------------+           |  |     |           |     |  |
                                   |  |     |           |     |  |
                                   |  |     |           |     |  |
 +---------------------+           |  +-----+           +-----+  |
 +-+-----------------+-+           +--+                       +--+
   |                 |
   |                 |
   +-----------------+


 Dimensions and Mounting
 -----------------------
 The drive can be mounted in any orientation. Maximum screw length is
 3mm with a three minimum full threads. The maximum mounting torque
 for these screws is 120 inch-ounces.

 NOTE
 If the bottom mounting holes are used, the mating surface of the
 assembly that attaches to the bottom of the GoDrive GRS 80AT must
 have a flatness of 0.127 mm (0.005 inches) or better; the GoDrive GRS
 160AT requires a mating surface flatness of 0.076 mm (0.003 inches).


 Ventilation
 -----------
 GoDrive GRS 80/160AT hard disk drives can operate without a cooling
 fan, provided the ambient air temperature des not exceed 55*C
 (131*F). Any user-designed cabinet must provide adequate air
 circulation to prevent the maximum temperature from being exceeded.


 Cable Connector
 ---------------
 GoDrive GRS 80/160AT hard disk drives have a single 2 x 22
 connector (on 2mm centers) for both power and data. The connector
 also includes four pins which are reserved for factory test points -
 these pins must be allowed to float.

 The recommended system mating connector is a Dupont part number
 69764-044 or equivalent. The maximum cable length is 18 inches. To
 assure that the system cable connector is installed with the proper
 orientation, plug Pin 20 hole on the system connector.


 Power Sequencing
 ----------------
 GoDrive GRS 80/160-AT hard disk drives require no power sequencing.
 Removing power during drive operation generally (see caution note
 below) does not cause data to be lost or corrupted. Although the
 drive requires no power sequencing, Quantum recommends that is a
 controlled power dwon is available from the system (e.g., in a system
 with an auto resume feature), a Standby command should be issued to
 the drive prior to the removal of power.

 CAUTION
 Data may be lost or corrupted in a sector being written at the time
 of a power loss.

 During power-on or power-off, the drive can sustain an open or a
 short circuit on either the voltage or the return line.


 Electrical Interface
 --------------------
 All signals are TTL-compatible. A logic one is greater than 2.0 volts
 and less than 5.25 volts. Logic zero is greater than 0.0 volts and
 less than 0.7 volts. The drive requires no terminating resistors.



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                      F   E   A   T   U   R   E  S
**********************************************************************
QUANTUM  GODRIVE GRS 80/160AT  PRODUCT MANUAL 81-101804-01 JUNE 1992

 General Description
 -------------------
 Quantum's GoDrive GRS 80AT and GoDrive GRS 160AT hard disk drives are
 part of a family of high performance, 2.5-inch form factor hard disk
 drives manufactured ti meet the highest product-quality standards.

 GoDrive GRS 80/160AT hard disk drives feature an embedded AT drive
 controller and uses AT commands to optimize system performance. Be-
 cause the drive manages media defects and error recovery internally,
 these operations are fully transparent to the user.

 Note: The GoDrive GRS 80/160AT does not include a faceplate!


 Features
 --------

 - Low-profile, optimized for number of disks

 - Data-transfer rate of up to 4.0 megabyte per second, using
   programmed I/O

 - Proprietary 32K, look-ahead, programmable DisCache with WriteCache

 - 112-bit Reed Solomon Error Correction Code (ECC), with 48-bit
   double burst correction

 - Automatic retry on read errors

 - Transparent media-defect mapping

 - High performance, in-line defective sector skipping

 - Reassignment of defective sectors discovered in the field, without
   reformatting

 - Automatic actuator shipping lock and dedicated landing zone

 - Emulation of IBM PC/AT task file register and all AT fixed-disk
   commands

 - Ability to daisy-chain two drives on the interface

 - >150K hour projected field MTBF



 Seek Time
 ---------
       +-------------------------------+--------+
       |                               | GRS AT |
       +-------------------------------+--------+
       |Track-to-Track      msec. typ. |   5    |
       +-------------------------------+--------+
       |Average             msec. typ. |  17    |
       +-------------------------------+--------+
       |Full-Stroke         msec.      |  30    |
       +-------------------------------+--------+
       |Latency             msec. avg. |   8.3  |
       +-------------------------------+--------+


 Error Reporting
 ---------------
 At the start of a command's execution, GoDrive GRS 80/160AT hard disk
 drives check the COMMAND register for any conditions that would lead
 to an abort command error. The drive then attempts execution of the
 command. Any new error causes execution of the command to terminate
 at the point at which it occurred. The following table list the valid
 errors for each command.

 -----------------+----------------------------+---------------------+
 COMMAND          |ERROR REGISTER              |STATUS REGISTER      |
                  +----------------------------+---------------------+
                  |BBK|UNC|IDNF|ABRT|TK0NF|AMNF|DRDY|DWF|DSC|CORR|ERR|
 -----------------+---+---+----+----+-----+----+----+---+---+----+---+
 Defect List      |   | V | V  | V  |     |    | V  | V | V | V  | V |
 Exec. Drive Diag.|   |   |    |    |     |    |    |   |   |    | V |
 Format Track     |   |   | V  | V  |     |    | V  | V | V |    | V |
 Identify Drive   |   |   |    | V  |     |    | V  | V | V |    | V |
 Initi. Parameters|   |   |    |    |     |    | V  | V | V |    |   |
                  |   |   |    |    |     |    |    |   |   |    |   |
 Inval.Cmnd. Codes|   |   |    | V  |     |    | V  | V | V |    | V |
 Read Buffer      |   |   |    | V  |     |    | V  | V | V |    | V |
 Read Configurati.| V | V | V  | V  |     |    | V  | V | V | V  | V |
 Read Multiple    | V | V | V  | V  |     |    | V  | V | V | V  | V |
 Read Sectors     | V | V | V  | V  |     |    | V  | V | V | V  | V |
                  |   |   |    |    |     |    |    |   |   |    |   |
 Read Sec. Long   | V |   | V  | V  |     |    | V  | V | V |    | V |
 Read Verify Sec. | V | V | V  | V  |     |    | V  | V | V | V  | V |
 Recalibrate      |   |   |    | V  | V   |    | V  | V | V |    | V |
 Seek             |   |   | V  | V  |     |    | V  | V | V |    | V |
 Set Configuration| V |   | V  | V  |     |    | V  | V | V |    | V |
 Set Features     |   |   |    | V  |     |    | V  | V | V |    | V |
                  |   |   |    |    |     |    |    |   |   |    |   |
 Set Multiple Mode|   |   |    | V  |     |    |    |   |   |    | V |
 Write Buffer     |   |   |    | V  |     |    |    |   |   |    | V |
 Write Multiple   | V |   | V  | V  |     |    | V  | V | V |    | V |
 Write Sectors    | V |   | V  | V  |     |    | V  | V | V |    | V |
 Write Sec. Long  | V |   | V  | V  |     |    | V  | V | V |    | V |
                  |   |   |    |    |     |    |    |   |   |    |   |
 Standby Mode     |   |   |    |    | V   |    |    | V |   | V  | V |
 Idle Mode        |   |   |    |    | V   |    |    | V |   | V  | V |
 Standby Mode     |   |   |    |    |     |    |    |   |   |    |   |
 (auto power-down)|   |   |    |    | V   |    |    | V |   | V  | V |
 Idle Mode (auto  |   |   |    |    |     |    |    |   |   |    |   |
 power-down)      |   |   |    |    | V   |    |    | V |   | V  | V |
 -----------------+---+---+----+----+-----+----+----+---+---+----+---+

 Key:
 V     = Valid errors for each command
 ABRT  = Abort command error
 AMNF  = Data address mark not found error
 BBK   = Bad block detected
 CORR  = Corrected data error
 DRDY  = Drive not ready detected
 DSC   = Disk seek complete not detected
 DWF   = Drive write fault detected
 ERR   = Error bit in the Status Register
 IDNF  = Requested ID not found
 TK0NF = Track zero not found error
 UNC   = Uncorrectable data error

 The format for GoDrive GRS 80/160AT allocates one sector per cylinder
 as a spare. In the factory, the media is scanned for defects. If a
 sector on a cylinder found to be defective, the sector's address is
 added to the drive's defect list. Sectors physically subsequent to
 the defective sector are assigned logical block addresses such that
 a sequential ordering of logical blocks results. This in-line sparing
 technique is employed in an attempt to eliminate throughput reduction
 resulting from a single defective sector on a cylinder.


