
D S A A - 3 2 7 0       D E S K S T A R    IBM
                                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/SLIMLINE         Cylinders        |  954|     |
Capacity form/unform   280/      MB        Heads           2|   16|     |
Seek time   / track  13.0/     ms          Sector/track     |   36|     |
Controller           IDE / AT              Precompensation
Cache/Buffer            96 KB READ-AHEAD   Landing Zone
Data transfer rate    4.500 MB/S int       Bytes/Sector      512
                      8.300 MB/S ext DMA
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 55    |    -40 65
Power: sleep              W     Humidity     %         8 90    |      5 95
       standby            W     Altitude    km    -0.152  3.048| -0.300 12.000
       idle               W     Shock        g        10       |     75
       seek               W     Rotation   RPM      4500
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit   128BIT REED SOLOMON,REED S...
                                MTBF         h     300000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,EEC,ESD,FCC,IEC380,IEC...


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                        L   A   Y   O   U   T
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IBM      DSAA-3XXX  OEM FUNCTIONAL SPECIFICATIONS REV 0.3, OCT. 1993

  +---------------------------------------------------------+
  |                                                         |XX
  |                                                         |xx
  |                                                         |XX
  |                                                         |XX I
  |                                                         |XX N
  |                                                         |XX T
  |                                                         |XX E
  |                                                         |XX R
  |                                                         |XX F
  |                                                         |XX A
  |                                                         |XX C
  |                                                         |XX E
  |                                                         |XX
  |                                                    +-+1 |
  |                                             Jumpers| |  |XX
  |                                                    +-+7 |XX Power
  +---------------------------------------------------------+







          +---------------------------------------------------------+
 Power   ++-+-----+                                                 |
 Connector  |    +++ JP7                                            |
         +--+    | |                                                |
         |  |    +++ JP1                    Bottom Side of the Drive|
 AT      |  |     +------------------------------------------+      |
 Interface  |                                                |      |
 Connector  |                                                |      |
         |  |                                                |      |
         |  |           Logic Card                           |      |
         |  |                                                |      |
         ++-+------------------------------------------------+      |
          +---------------------------------------------------------+

 Shape of the card will be changed in the next revision.



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                      J   U   M   P   E   R   S
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IBM      DSAA-3XXX  OEM FUNCTIONAL SPECIFICATIONS REV. 0.3, OCT. 1993

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

 Jumpers are used for drive address setting, write cache disabling and
 auto re-allocation disabling.

 Jumper position and the function are as shown below. Pin pitch is
 2mm.

                JP2   JP3       JP5  JP6
          JP1  Slave Cable     Write Auto
         Master  |   Selection Cache Re-alloc.
           |     |    |   JP4  |     |   JP7
          +--+ +--+ +--+ +--+ +--+ +--+ +--+
          |1 | |3 | |5 | |7 | |9 | |11| |13|
          +--+ +--+ +--+ +--+ +--+ +--+ +--+
          +--+ +--+ +--+ +--+ +--+ +--+ +--+
          |2 | |4 | |6 | |8 | |10| |12| |14|
          +--+ +--+ +--+ +--+ +--+ +--+ +--+
        ---------------------------------------
        -----------Raw-Card--------------------

 NOTES
 1. The jumper position of JP1, 2, and 3 should be exclusive each
    other.

 2. JP1 is for Master, and appropriate for single drive present.

 3. JP2 is for Slave.

 4. JP3 is for Cable Selection mode.

 5. To enable Cable Selection mode, the JP3 jumper must be installed.
    In the Cable Selection mode, the drive address is determined as
    follows:

       - When CSEL signal (pin 28) is grounded or at a low level, the
         drive address is 0 (master).

       - When CSEL signal is open or at high level, the drive address
         is 1 (slave).

 6. Position JP4 is not used.

 7. When JP5 jumper is installed, write cache function is disabled.

 8. When JP6 jumper is installed, auto re-allocation function is
    disabled.

 9. Position JP7 is not used.


 Default Setting
 ---------------
 The default jumper setting at shipment is as follows.

 Enabling write cache by Set Features command is effective only when
 both jumpers of JP5 and JP6 are OFF.

 Position:|JP1| JP2| JP3| JP4| JP5 | JP6 | JP7
 Pin:     |1-2| 3-4| 5-6| 7-8| 9-10|11-12|13-14
 ---------+---+----+----+----+-----+-----+------
 Jumper:  | ON| OFF| OFF| OFF| OFF | OFF | OFF
            |    |    |    |    |     |     +-- Not Used
            |    |    |    |    |     +-------- Auto Re-allocation
            |    |    |    |    |               enabled
            |    |    |    |    +-------------- Write Cache enabled
            |    |    |    +------------------- Not Used
            |    |    +------------------------ Cable Selection
            |    |                              disabled
            |    +----------------------------- Slave not assigned
            +---------------------------------- Master assigned, and
                                                appropreate for single
                                                drive present

 Auto Reallocation Jumper
 ------------------------
 (+)Auto reallocation jumper is checked during the initial power on
 reset (POR) check. Write cache becomes off when a jumper for these
 pins is set automatically to keep data integrity. (+)Auto realloca-
 tion jumper position needs to be OPEN when a user system wants to use
 write cache.


 Write Cache Jumper
 ------------------
 (+)Write cache jumper is checked during the initial POR check.



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                      I   N   S   T   A   L   L
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IBM      DSAA-3XXX  OEM FUNCTINAL SPECIFICATIONS REV. 0.3, OCT. 1993

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

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

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

 Mounting Orientation
 --------------------
 The drive operates in all axes (6 directions). The drive operates
 within the specified error rates when tilted  5 degrees from these
 positions.

 Performance and error rate stay within specification limits even if
 the drive is operated in other orientations from which it was
 formatted. Thus a drive formatted in the horizontal orientation
 operates in the vertical position without any degradation, and vice
 versa.

 The recommended mounting screw torque is 3  0.5 [Kgf.cm]. The
 recommended mounting screw depth is 3.5  0.5 [mm] for bottom and 5.0
  0.5 [mm] for horizontal mounting.

 The system is responsible for mounting the drive securely enough to
 prevent excessive motion or vibration of the drive at seek operation
 or spindle rotation, using appropriate screws or equivalent mounting
 hardware.

 The vibration test and the shock test ar eto be conducted with the
 drive mounted to the table using four bottom screws.


 Identification Labels
 ---------------------
 The following labels are affixed to every drive.

 1. A label placed on the top of the HDA contains the statement "Made
    by IBM" or equivalent, Part number, and MLC number.

 2. A bar code label placed on the disk drive is based on user
    request. The location is to be designated in the drawing.

 3. Labels containing the vendor's name, disk drive model number,
    serial number, place of manufacture and UL/CSA logos.

 Except for the bar code, the labels may be integrated.

 The label portion will be changed in the next revision.


 Cabling
 -------
 The maximum cable length from the host system to the drive, plus the
 circuit pattern length in the host system, cannot exceed 46 [cm].


 Interface Connector
 -------------------
 The DC 4-pin connector is designed to mate with AMP 1-480424-0 or
 equivalent.

 The AT signal connector is designed to mate with 3M 3417-7000 or
 equivalent.


 Interface Logic Signal Levels
 -----------------------------
 The interface logic signal have the following electrical
 specifications:

  Inputs:  Input High Voltage    2.0 V min.
           Input Low Voltage     0.8 V max.

  Outputs: Output High Voltage   2.4 V min.
           Output Low Voltage    0.5 V max.



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                      F   E   A   T   U   R   E  S
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IBM      DSAA-3XXX  OEM FUNCTIONAL SPECIFICATIONS REV. 0.3, OCT. 1993

 Products Outline
 ----------------
 - Closed Loop actuator servo

 - Dedicated head landing zone

 - Automatic actuator look

 - 96 KB Sector Buffer (Option up to 224KB)

 - Read ahead of LRU cache algorithm

 - Write Cache

 - Enhanced ECC implementation
   - 128-bit Reed Solomon Code operating 10-bit symbol
   - Multi-burst On-The-Fly correction (up to 4 symbols in one sector)

 - Automatic Error Recovery Procedures for Read and Write

 - Self Diagnostics during Power On

 - PIO Data Transfer - Mode 2

 - DMA Data Transfer
   - Single Word mode: mode 2
   - Multiword mode:   mode 1 (8.3 MB/sec)

 - CHS and LBA mode

 - Transparent defect management by Automatic Defect Reallocation
   during Write Cache

 - Power saving modes

 - MR (Magneto Resistive) Head technology


 Physical Format
 ---------------
 On manufacturing process, all sectors of hard disk drive are tested
 for the magnetical performance, so that only acceptable sectors are
 used.

 In data area, accepted sectors are numbered sequentially for user
 data sectors.

 This mapping information is maintained at firmware level, and data
 block addressed by logical cylinder, head and sector is translated
 into physical location on disk(s) automatically. This operation is
 invisible from application level.

 The hard disk drive never perform low-level format after manu-
 facturing process.


 Error Rate
 ----------
 - Probability of not recovering data .... 1 in 10(13) bits read

 - ECC implementation
   128-bit Non-interleave Reed Solomon Code operating 10-bit symbol is
   used to cover the data fields.
   On-The-Fly correction covers up to four symbols of error in one
   sector.


 Error Register
 --------------
   +-----------------------------------+
   |       Error Register              |
   +---+---+---+----+--+----+-----+----+
   | 7 | 6 | 5 | 4  |3 | 2  |  1  | 0  |
   |BBK|UNC| 0 |IDNF|0 |ABRT|TK0NF|AMNF|
   +---+---+---+----+--+----+-----+----+

 This register contains status from the last command executed by the
 drive, or a diagnostic code.

 At the completion of any command except Execute Drive Diagnostics,
 the contents of this register are valid.

 Following a power on, a reset, or completion of an Execute Drive
 Diagnostic command, this register contains a diagnostic code.

 Bit Definitions
 BBK       Bad Block. BBK = 1 indicates a bad block mark was detected
           in the requested sector's ID field.

 UNC       Uncorrectable Data Error. UNC = 1 indicates an
           uncorrectable data error has been encountered.

 IDNF(IDN) ID Not Found. IDN = 1 indicates the requested sector's ID
           field could not be found.

 ABRT(ABT) Aborted Command. ABT = 1 indicates the requested command
           has been aupported to a drive status error or an invalid
           parameter in an output register.

 TK0NF     Track 0 Not Found. T0N = 1 indicates track 0 was not found
 (T0N)     during a Recalibrate command.

 AMNF(AMN) Address Mark Not Found. AMN = 1 indicates the data address
           mark has not been found after finding the correct ID field
           for the requested sector.


 Read Look-Ahead
 ---------------
 The drive keeps the buffers into 32 Kbytes as read/write cache.
 - Least Frequent Used buffer is discareded to save the newly
   requested data.


 Write Cache
 -----------
 When the write cache is enabled, write cache uses a dedicated 32
 Kbytes buffer. (The write cache is enabled by checking jumper setting
 at power-on-reset period. And if the jumper setting is for enabling
 write cache, this can be enabled or disabled by sending set features
 commands.)

 - If the previous command is WRITE, and the block requested is
   consecutive to the previous, the drive will return "COMPLETE" after
   all data is received in the drive buffer.

 - Soft reset is recommended to check the actual data writing to
   media, i.e., soft reset is processed after the previous write
   command (with cache) completes the actual writing to media.

 - Certain power down during Write Cache operation may result in Non-
   recoverable error later. Write to the broken sector will recover
   this sector.

 - Automatic reallocation will be invoked at the failing sector if a
   non-recoverable error occurs and the write will be completed
   normally.

 - If the drive runs out of spares for reallocation, write cache and
   reallocation will be turned off.

 - If the drive is unable to complete a cached write and/or
   reallocation after good status has been returned, the drive will
   not process any commands including a soft reset. This condition
   will be cleared at power on, or a hardware reset.


 Warranty
 --------
 The warranty will be covered by contracts.


 Landing Zone and Lock
 ---------------------
 A landing zone on the disk, not the data area of the disk, is
 provided to protect the disk data during shipping, movement, or
 storage. After power down, a head locking mechanism secures the heads
 in this zone.



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                      G   E   N   E   R   A   L
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IBM       AT INSTALLATION (IDE-AT1)

 IDE Installation Guide Generic

 Installation requirements
 -------------------------
 To install an IDE drive inside your computer, you must have:

 1 The documentation that came with your computer.

 2 The documentation that came with your hard drive.

 3 A small, flat blade screwdriver.

 WARNING: Do not open the static-protective bag containing the drive
 until instructed to do so. Static electricity can damage the drive.


 Preparing the drive for installation
 ------------------------------------
 Master drive If this drive is the first or primary hard disk drive to
 be installed inside your computer, check the manual that came with
 your hard drive to locate the Master setting. If your drive is set to
 a Master, do not change the jumper position.

 Slave drive If this drive is the second or secondary hard disk drive
 in your computer, you must change the jumper position on the drive to
 Slave. Refer to the manual that came with your hard disk drive to
 locate the Slave setting.

 To change the jumper on the hard disk drive:

 1 Remove the drive from the static-protective bag and place it on top
   of the bag.

 2 Refer to your manual and locate the pins.

 3 If you need to change the setting, grasp the jumper and pull it off
   the pins.

 4 Line up the two holes in the bottom of the jumper with the
   approprate two pins on the drive. Push the jumper onto the pins
   until the jumper is completely seated and covers both pins.


 Installing the drive
 --------------------
 For the specific information on installing a hard disk drive, refer
 to the documentation that came with your computer. You will be
 required to mount the drive inside your computer, connect signal and
 power cables to the hard drive, and update the configuration
 information.


 Handling precautions
 --------------------
 01 Turn off all attached devices first; then turn off the computer.

 02 Unplug all the power cords from electrical outlets before starting
    installation.

 03 Disconnect all power cables from your computer and attached
    devices before starting installation.

 04 Limit your movement. Movement can cause static electricity to
    build up around you.

 05 Handle the drive carefully and by the edges.

 06 Do not touch any exposed printed circuitry.

 07 Prevent other people from touching the components or the drive.

 08 When you are installing the drive, touch the static-protective
    package containing the drive to a metal expansion-slot screw or
    other unpainted metal surface on the computer, for at least 2
    seconds. (This drains static electricity from the package and your
    body.)
 09 When possible, remove the drive and install it directly into the
    computer without setting it down. If this is not possible, place
    the drive, component side up, on the static-protective bag on a
    flat surface until the drive is installed.
 10 Do not place the drive on the computer cover or on a metal table.

 Note: Be sure to use the correct screws provided with your drive.
 Using the wrong ones might cause damage to the drive.


 Completing the installation procedure
 -------------------------------------
 The installation of the drive is complete. Reinstall the cover on the
 computer or storage enclosure. Store these instructions and any extra
 parts in a safe place in case you change your configuration.
 After installing your hard disk drive, use the information that came
 with your computer to reconfigure your system. When you power on your
 system, turn on all attached devices first; then turn on the
 computer.

 If you have any problems at this point, turn off all attached
 devices; then, turn off the computer and check that:

 1 The cables are installed correctly

 2 No options or cables are loose

 3 The jumpers are properly set Turn on all attached devices; then,
   turn on the computer. If you still have a problem, refer to the
   troubleshooting information in the documentation that came with
   your computer.


 Update configuration
 --------------------
 Whenever you add or remove an option from your computer, you must
 update the configuration information. Your computer might have an
 automatic configuration program, or you might have to follow a
 specific procedure. For more information, refer to the documentation
 that came with your computer.


 Preparing the drive for use
 ---------------------------
 Having successfully installed the hard disk drive, you need to
 prepare it for use. Depending on the operating system you are using,
 you might need to partition then format the hard disk. Refer to the
 documentation that came with your operating system for information on
 how to format your new drive.
 To make the drive just installed your primary drive, you might need
 to create a new system partition on the drive. For information on
 creating a new system partition, refer to the documentation that came
 with your operating system.


 Troubleshooting
 ---------------
 You might be able to solve a problem yourself. Before calling IBM,
 you might want to try some or all of the following troubleshooting
 procedures.

 1 Remove and reattach all drive cables

 2 Remove and reseat the drive

 3 Place the drive in a different slot, if one is available

 4 If your drive contains jumpers or switches, check that they are set
   as specified

 5 Reread any software instructions; be sure software settings are
   correct

 6 Inspect the drive for damage, such as bent pins

 7 Check the computer manual for instructions about the installation
   of upgrades. Look for a section about system setup or system
   configuration. Follow all procedures.

 8 After completing these steps, reassemble the computer and connect
   the power cord

 If you are still having problems and want to call IBM technical
 support, have available as much of the following information as
 possible:

 1 Drive model or P/N and description

 2 Computer manufacturer and model

 3 Exact wording of error message (if any)

 4 Description of the problem

 5 Hardware and software configuration information for your system

 If possible, be at your computer. Your technical support rep might
 want to walk you through the problem during the call.


