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Hard Drive: IBM: WDS-240 42MB 2.5"/SSL SCSI1 SE




W D S - 2 4 0    IBM
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 2.5"/SUPERSLIMLINE    Cylinders    1120|     |     |
Capacity form/unform    42/      MB        Heads           2|     |     |
Seek time   / track  18.5/ 5.0 ms          Sector/track   38|     |     |
Controller           SCSI1 SINGLE-ENDED    Precompensation
Cache/Buffer               KB              Landing Zone
Data transfer rate    1.388 MB/S int       Bytes/Sector      512
                            MB/S ext
Recording method     RLL                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5 V          Temperature *C         5 55    |    -40 65
Power: sleep          0.3 W     Humidity     %         8 90    |      5 95
       standby        0.9 W     Altitude    km    -0.152  3.048| -0.152  4.572
       idle           1.4 W     Shock        g        10       |     60
       seek           2.6 W     Rotation   RPM      3600
       read/write     2.3 W     Acoustic   dBA
       spin-up        4.0 W     ECC        Bit
                                MTBF         h     150000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,FCC,IEC380,IEC435,IEC9...

Layout

IBM WDS-280/240 FUNCTION SPECIFICATION 07G0712 REV. 1.1 01/91

       +-------------------------------------------------+
       |                                                 |
       |                                                 |
       |                                                 |
       +39----------J1-------------------------1----J2---+
       | XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX  7****1 |
       |40                                     2  8****2 |
       +-------------------------------------------------+

            40-pin SCSI Connector and SCSI ID pins

Jumpers

IBM WDS-280/240 FUNCTION SPECIFICATION 07G0712 REV. 1.1, 01/91

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

 J1 SCSI Connector Pin assignment
 --------------------------------
 The pin assignment of interface signals are listed as follows:
      +---+-----------+---+------------+
      |Pin|Signal Name|Pin|Signal Name |
      +---+-----------+---+------------+
      |01 |+5         | 02| +5         |
      |03 |LOGIC RET  | 04| LOGIC RET  |
      |05 |GND        | 06| DB0        |
      |07 |GND        | 08| DB1        |
      |09 |GND        | 10| DB2        |
      |11 |GND        | 12| DB3        |
      |13 |GND        | 14| DB4        |
      |15 |GND        | 16| DB5        |
      |17 |KEY        | 18| DB6        |
      |19 |GND        | 20| DB7        |
      |21 |GND        | 22| PARITY     |
      |23 |GND        | 24| TERMPWR    |
      |25 |-ATTN      | 26| -BSY       |
      |27 |GND        | 28| -ACK       |
      |29 |-RST       | 30| -MSG       |
      |31 |GND        | 32| -SEL       |
      |33 |-I/O       | 34| -C/D       |
      |35 |GND        | 36| -REQ       |
      |37 |MOTOR RET  | 38| MOTOR RET  |
      |39 |+5         | 40| +5         |
      +---+-----------+---+------------+

 J2 Signal Asignment (SCSI-low power)
 ------------------------------------
    +----+------------+-----+-----------+
    |Pin |Signal Name |Pin  |Signal Name|
    +----+------------+-----+-----------+
    |J01 |-LED        |J02  |GND        |
    |J03 |-MSTART     |J04  |GND        |
    |J05 |-ADDR 0     |JO6  |-ADDR 1    |
    |J07 |-ADDR 2     |J08  |GND        |
    +----+------------+-----+-----------+

Install

IBM WDS-280/240 FUNCTION SPECIFICATION 07G0712 REV. 1.1, 01/91

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

Mounting Orientation
--------------------
The disk drive shall operate within specified error rates in all axis
with no limitation. The test will be done within 5 degrees from
these positions.

Performance and error rate must stay within specification limits if
the disk drive is operated in the other permissible orientations from
which it was formatted. Thus a disk drive formatted in a horizontal
orientation must be able to run vertically and vice versa.

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

 1. A label placed on the top of the HDA containing the statement
    "Made by IBM" or equivalent, Part No., EC No. and FRU No.

 2. A bar code label can be placed on the disk drive based on user
    requirements. The location on the disk drive will be designated by
    YAMATO Lab.

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

Except for the bar code, labels may be integrated with YAMATO
designed label.

Electrical interface specification for WDS-280/240
--------------------------------------------------
WDS-280/240 uses single-ended SCSI drivers and receivers with each
signal lines pulled up by 1 kohm resistor.

Cabling
-------
The maximum cable length from the host system to the drives is
limited to 6 inches.

Air cooling requirement
-----------------------
The system is responsible to provide sufficient air movement to
maintain 60*C maximum at the center of TOP COVER of unit.

Features

IBM WDS-280/240 FUNCTION SPECIFICATION 07G0712 REV. 1.1, 01/91

 Seek Time
 ---------
       +----------------------------------+--------+
       |                                  |280/240 |
       +----------------------------------+--------+
       |Track-to-Track         msec. typ. |   5    |
       +----------------------------------+--------+
       |Average                msec. typ. |  16.5  | 18.5 WD240
       |                       msec. max. |  17    | 19   WD240
       +----------------------------------+--------+
       |Full Strok             msec. typ. |  29.5  |
       +----------------------------------+--------+
       |Latency                msec. avg. |   8.3  |
       +----------------------------------+--------+

 Reliability
 -----------
 MTBF                     : 150,000 power-on hours
 File Design Life         : 5 Years
 Unrecoverable Data Error : Less than one error in 1E13 bits transfer
                            (any condition)

Start/Stop and Power on/off Cycles
----------------------------------
The disk drive will meet the specified error rates after the
following Start/Stop or Power ON/OFF cycles.

a. Normal condition of Temperature/Humidity

     Power ON/OFF cycles  :    12,000
     Sleep/Wake up cycles :    40,000
     Total                :    52,000

b. Extreme condition of Termperature/Humidity

     Power ON/OFF cycles  :     2,400
     Sleep/Wake up cycles :     8,000
     Total                :    10,400

Acoustics
---------
The upper limits of A-weighted and the octave sound power levels
(LWoct) spec are given in Bels (b) relative to 1 pico Watt and are
shown in the following table.

 +---------+----------------------------------+-------------+
 |         |Octave Band Center Frequency (Hz) |   A-weighted|
 |         +----+----+----+----+----+----+----+   BA        |
 |Mode     | 125| 250| 500| 1 k| 2 k| 4 k| 8 k|             |
 +---------+----+----+----+----+----+----+----+-------------+
 |Idling   | 5.0| 4.6| 4.2| 4.2| 4.2| 4.2| 4.0|   4.5       |
 +---------+----+----+----+----+----+----+----+-------------+
 |Operating| 5.3| 4.8| 4.7| 4.7| 4.7| 4.5| 4.0|   4.8       |
 +---------+----+----+----+----+----+----+----+-------------+

General

IBM SCSI INSTALLATION

SCSI Installation Guide Generic

Installation requirements
-------------------------
To install a drive inside your computer or in an external storage
enclosure for SCSI devices, you must have:

 1 The documentation that came with your computer or storage
   enclosure.

2 The documentation that came with your hard drive.

3 A small, flat blade screwdriver.

 4 A SCSI controller, which is either built into the system board or
   on an adapter inside your computer.

 5 An installation kit, if it is required for your computer. Contact
   your place of purchase if you are not sure.

 6 If you are installing this into a PS/2 computer, you will also need
   the up-to-date backup copy of your reference diskette and
   diagnostic diskette.

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

Hardware and software considerations
Operating system
----------------
The operating system and hardware are two of the factors that
determine the number of drives a computer can support. The manuals
for your computer and operating system can help you to determine the
number and type of hard disk drives you can use.

Power supply
------------
Two factors that determine the number of internal drives that a
computer or SCSI storage enclosure can support are:

1 The available current of the power supply

2 The nominal operating current of each drive installed

Most computer power supplies have output over-current protection. If
the total allowed current is exceeded, the power supply shuts down.
The computer must be turned off and turned on again.

SCSI ID Each SCSI device connected to a SCSI adapter must be assigned
a unique SCSI identification number (ID). The ID you assign to this
device depends on the number of SCSI devices connected to the SCSI
adapter and the SCSI IDs already assigned to those devices.

Note: All IBM SCSI controllers support SCSI IDs 6 through 0. (ID 7 is
used for the SCSI controller.) Some SCSI controllers support SCSI IDs
15 through 8. If your SCSI controller supports more than seven
devices, then you can use SCSI IDs 15 through 8. If you are not sure
if your SCSI controller supports more than seven devices, refer to
the documentation that came with your SCSI controller for
information.

If you have an IBM PS/2 computer, you can view your SCSI ID settings
by accessing the system programs. From the main menu, select Set
configuration. The select Set and view SCSI configuration.
Other computers might have utility programs that enable you to view
the SCSI configuration, or you might have to physically inspect the
installed SCSI devices to see how the IDs are set. For more
information, refer to the documentation that came with your computer
or SCSI controller.

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

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

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

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

5 Handle the drive carefully and by the edges.

6 Do not touch any exposed printed circuitry.

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

 8 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.)

 9 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.

Installing the drive
--------------------
These instructions guide you as you install the drive inside your
computer or storage enclosure.

Step 1. Setting the jumpers and terminators

 Note: Be sure you have chosen the SCSI ID before continuing. If you
       did not yet choose the SCSI ID, go to "SCSI IDs" above, then
       return here. Follow these steps to set the SCSI ID to match
       your chosen SCSI ID.

 1 Touch the static-protective bag containing the drive to a metal
   expansionslot cover on the computer. This drains any static
   electricity from the package and your body.

 2 Remove the drive from the static-protective bag, holding the drive
   by the edges. Do not touch any exposed components on the drive.

3 Place the drive on the bag, on a flat surface.

 4 When the Auto Start feature is enabled, the hard disk drive motor
   starts as soon as the computer is turned on. Locate the Auto Start
   jumper by referring to the documentation that came with your drive.
   If the Auto Start jumper is not in place, the hard disk is started
   by a command from the SCSI controller. For drives installed in
   IBM computers or storage enclosures ensure that this jumper is off.
   The hard disk drive is started in a staggered sequence. This
   reduces the start-up load on the power supply. For non-IBM
   computer, refer to the documentation that came with your
   computer for further information.

 5 Set the SCSI ID that you selected. To remove a jumper, pull it
   straight off. To install a jumper, line up the two holes in the
   jumper with the appropriate two pins on the drive. Then push the
   jumper onto the pins until it is completely seated and covers
   both pins.

 6 Store any jumpers you do not use in a safe place, in case you need
   to change the SCSI ID for this drive later. WARNING: If you have
   extra jumpers, do not store them on any of the extra pins on the
   connector. Storing them on a set of pins could damage the drive.

Step 2. Connecting the terminator
The location of the drive you are installing inside the computer or
storage enclosure determines whether you need to connect a terminator
or put a jumper on the Enable Active Termination pins. Read the
information in the following table to determine if you must install
the terminator. For more information about termination, refer to the
documentation that came with your computer.

Note: A SCSI chain of devices consists of multiple SCSI devices
connected by a SCSI cable to a SCSI controller.

If the hard disk drive is: Then:
The last physical device on a SCSI chain of Install the terminator
devices inside the computer.

The last physical device on a SCSI chain of Install the terminator
devices inside an external storage enclosure.

Step 3. Enabling term power
If your drive has a jumper for term power and your SCSI controller is
suppling term power, (check with the manufacturer of your controller)
then you do not need to enable the term power. The jumper should be
off. For help in locating the term power jumper, refer to the
documentation that came with your drive.

Step 4. 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, and connect signal
and power cables to the hard drive. When installed in an enclosure,
the drive is attached by cable to the external connector of a SCSI
controller. The controller can be either on a SCSI adapter or built
into the system board inside of your computer.

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

Step 5. 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 SCSI ID is properly set

4 No two SCSI drives have the same SCSI ID

5 The terminators are properly installed

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.

Step 6. 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.

Step 7. 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.















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