previous page: Hard Drive: IBM: H2172-S2 172MB 2.5"/SSL   SCSI2 SE
page up: Hard Drive Specs from IBM
next page: Hard Drive: IBM: H2258-S3 258MB 2.5"/SSL   SCSI2 SE

Hard Drive: IBM: H2258-A3 258MB 2.5"/SSL IDE / AT

H 2 2 5 8 - A 3    IBM
NO MORE PRODUCED                                      Native|  Translation
Form                 2.5"/SUPERSLIMLINE    Cylinders        |     |     |
Capacity form/unform   258/      MB        Heads           3|     |     |
Seek time   / track  14.0/ 4.0 ms          Sector/track     |     |     |
Controller           IDE / AT              Precompensation
Cache/Buffer            32 KB WRITE CACHE  Landing Zone
Data transfer rate    3.200 MB/S int       Bytes/Sector      512
                      6.000 MB/S ext
Recording method     RLL 1/7                        operating  | non-operating
Supply voltage     5 V          Temperature *C         5 55    |    -40 65
Power: sleep              W     Humidity     %         8 90    |      5 95
       standby            W     Altitude    km    -0.152  3.048| -0.152  4.572
       idle           1.4 W     Shock        g        10       |    120
       seek               W     Rotation   RPM      3800
       read/write         W     Acoustic   dBA
       spin-up            W     ECC        Bit   ON THE FLY,REED SOLOMON
                                MTBF         h     300000
                                Warranty Month        12
Lift/Lock/Park     YES          Certificates     CSA,EEC,ESD,FCC,IEC380,IEC...



 44-pin AT Connector
       |                                                 |
       | Connector Side View                             |
       |                                                 |
       |44                                     2   x x   |

Pin 20 does not exist but should be used for identifying the
orientation direction along with the mating connector.

Pins 47 through 50 are used for drive address setting.

 Pin 42 = +5V LOGIC
 Pin 42 = +5V MOTOR
 Pin 43 = GND
 Pin 44 = RESERVED



Jumper Setting

Drive Address Setting
A jumper cable is available at the interface connector to determine
the drive address. When cable selection is used, the drive address is
determined by the condition of pin 28 of the AT interface cable. If
pin 28 is ground or low, the drive is a master. If pin 28 is open or
high level, the drive is a slave.

    o o o   o X |    Jumper Position-1
  o o o o   o X |    MASTER

  ---------49-47+-+  Jumper Position-2
    o o o   X o |    SLAVE
  o o o o   X o |

  ---------49-47+-+  Jumper Position-3
    o o o   o o |    CABLE SELECTION
  o o o o   xxx |



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

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

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

The vibration test and the shock test are to 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 maximum cable length from the host system to the drive, plus the
circuit pattern length in the host system, cannot exceed 45.7 cm.

Interface Connector
The AT signal connector is designed to mate with Dupont (P/N
69764-044) or equivalent.

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

  Inputs:  Input High Voltage    2.0 V min. to +6.0 V max.
           Input Low Voltage     -0.5 V min. to +0.8 V max.

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

  Current: Driver Sink Current   +24 mA min.
           Driver Source Current -400  A min.



General Features
- Multi-zone recording

- Enhanced ECC On-the-Fly (Reed Solomon Algorithm)

- Automatic retry on read errors

- Closed Loop actuator servo (Embedded Sector Servo)

- Dedicated head landing zone

- Automatic actuator look

- Rotary voice coil motor actuator

- Self Diagnostics during Power up

- No preventive maintainance required

- 17 mm height

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.

 Seek Time
       |                                  | H2xxx  |
       |Track-to-Track         msec  typ  |   4    |
       |Average typ.           read  msec |  14    |
       |                       write msec |  15    |
       |Full Stroke Seek typ.  read  msec |  23    |
       |                       write msec |  24    |
       |Latency                msec. avg. |   7.9  |
       |Time for revolution    msec.      |  15.8  |

Data Integrity
The drive retains recorded information under all non-write operations
(seek, read, reset, power up/down) and is capable of detecting fault
conditions associated with its own electrical or mechanical hardware
to prevent loss of recorded or mis-recorded information during write
operations. A hard reset or a power down during a write operation
does not result in a loss or mis-recording of more than one sector.

Equipment Status
Equipment status is available to the host system any time the drive
is not engaged in reading, writing, or seeking. The status normally
exists at power-on time and remains until the following events occur.

- Access recalibration/tuning is complete

- Spindle speed meets requirements for reliable operation

- Self-check of drive is complete

Appropriate error status is made available to the host system if any
of the following occurs after the drive become ready:

- Spindle speed goes outside of requirements for reliable operation
- Write fault is detected

Write Safety
The verification of write operation involves a read-back check of the
CRC or ECC in conjunction with write fault detection circuits. The
write fault detection circuits reveal conditions where write opera-
tion was intended and did not occur properly and the CRC or ECC
verification occurred for old information, or cases where data is
erroneously erased.

Data Buffer Test
The data buffers, a buffer and a cache used as temporally data
storages for read/write data transfer, are tested at a power-on-reset
and when a drive self-test is requested by the host. The test consist
of write/read hex '00'and hex 'FF' pattern for all bit position of
the buffers.

Error Recovery
Errors occuring with the drive are handled by the error recovery

Errors that are uncorrectable after application of the error recovery
procedures are reported to the host system as non-recoverable errors.

Defect Flagging Strategy
Media defects are remapped to the next available sector during the
manufacturing format process. The mapping from logical block address
(LBA) to the physical location is calculated with an internally
maintained table.

 +5V Power
 There are two input pins for +5V power supply; '+5V LOGIC' and '+5V
 MOTOR'. '+5V LOGIC' is connected to the internal logic circuits and
 '+5V MOTOR' is connected to the spindle motor and motor driver.

 It is possible to turn on and off '+5V LOGIC' by an external switch
 circuit to reduce power consumption to as little as possible. In this
 mode, a voltage drop out due to the motor spin up current can be
 reduced by connecting the '+5V MOTOR' line into the system power
 source directly.

If the above power management is used, all signals that are electric-
ally active in the host system while the drive is disconnected from
power line must be isolated by three-state line drivers. Internal
leakage through ESD protection circuit pulls down LPUL (Least
Positive Up Level) of logic signal below the specification.

Use both lines in paralle for regular applications.



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

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

 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
 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

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.

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

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

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

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.

previous page: Hard Drive: IBM: H2172-S2 172MB 2.5"/SSL   SCSI2 SE
page up: Hard Drive Specs from IBM
next page: Hard Drive: IBM: H2258-S3 258MB 2.5"/SSL   SCSI2 SE