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Hard Drive: FUJITSU: M2932SAM ALLEGRO 2 2170MB 3.5"/HH SCSI2 FAST

M 2 9 3 2 S A M       A L L E G R O   2    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
Form                 3.5"/HH               Cylinders    3429|     |     |
Capacity form/unform  2170/      MB        Heads           9|     |     |
Seek time   / track  11.0/ 1.5 ms          Sector/track     |     |     |
Controller           SCSI2 SI/FAST         Precompensation
Cache/Buffer           510 KB WRITE CACHE  Landing Zone
Data transfer rate    8.600 MB/S int       Bytes/Sector      512
                     12.000 MB/S ext SYNC
Recording method     RLL 8/9                        operating  | non-operating
Supply voltage     5/12 V       Temperature *C         5 50    |    -40 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby            W     Altitude    km            3.000|        12.000
       idle               W     Shock        g         5       |     50
       seek               W     Rotation   RPM      7200
       read/write         W     Acoustic   dBA        37
       spin-up            W     ECC        Bit   128BIT REED SOLOMON,ON THE...
                                MTBF         h     800000
                                Warranty Month
Lift/Lock/Park     YES          Certificates     CSA,FCC,TUV,VDE


FUJITSU M2932/M2934S 8-BIT OEM MANUAL C141-E022-01EN

  |                                                     +-+ |XX
  |                                                  CN6| | |XXI
  |                                                     +-+ |XXN
  |                                                         |XXT
  |                                    +----+               |XXE
  |                                    |CN7 |               |XXR CN1
  |                                    +----+               |XXF
  |                                    +----+               |XXA
  |                                    |CN4 |               |XXC
  |                                    +----+               |XXE
  |   +---+CN20                                             |XX
  |   +---+LED                                              |XX
  |                                                         |XX
  |                                                         |
  |                                                         |XX
  | 8-Bit Single Ended/Differential                         |XX


FUJITSU M2932/M2934 OEM MANUAL C141-E022-01EN

Jumper Setting

x = Set at factory shipment

   8-Bit        16-Bit

  +2+4+6+      +2+4+6+8+
  | | | |      | | | | |
  +1+3+5+      +1+3+5+7+

    SCSI ID 8-Bit Models
   | SCSI ID  |        Jumpers        |
   |          | 5-6   | 3-4   | 1-2   |
   |    0     | OPEN  | OPEN  | OPEN  |
   |    1     | OPEN  | OPEN  | CLOSED|
   |    2     | OPEN  | CLOSED| OPEN  |
   |    3     | OPEN  | CLOSED| CLOSED|
   |    4     | CLOSED| OPEN  | OPEN  |
   |    5     | CLOSED| OPEN  | CLOSED|
   |    6     | CLOSED| CLOSED| OPEN  |
   |    7x    | CLOSED| CLOSED| CLOSED|

 SCSI ID - 16-Bit Models
   | SCSI ID  |       Jumper Location         |
   |          |             PINS              |
   |          |  7-8  |  5-6  |  3-4  |  1-2  |
   |    0     | OPEN  | OPEN  | OPEN  | OPEN  |
   |    1     | OPEN  | OPEN  | OPEN  | CLOSED|
   |    2     | OPEN  | OPEN  | CLOSED| OPEN  |
   |    3     | OPEN  | OPEN  | CLOSED| CLOSED|
   |    4     | OPEN  | CLOSED| OPEN  | OPEN  |
   |    5     | OPEN  | CLOSED| OPEN  | CLOSED|
   |    6     | OPEN  | CLOSED| CLOSED| OPEN  |
   |    7     | OPEN  | CLOSED| CLOSED| CLOSED|
   |    8     | CLOSED| OPEN  | OPEN  | OPEN  |
   |    9     | CLOSED| OPEN  | OPEN  | CLOSED|
   |   10     | CLOSED| OPEN  | CLOSED| OPEN  |
   |   11     | CLOSED| OPEN  | CLOSED| CLOSED|
   |   12     | CLOSED| CLOSED| OPEN  | OPEN  |
   |   13     | CLOSED| CLOSED| OPEN  | CLOSED|
   |   14     | CLOSED| CLOSED| CLOSED| OPEN  |

 1. Set the SCSI ID so that there are no duplicates between SCSI
    devices on the same SCSI bus.

 2. The priority of SCSI bus use in ARBITRATION phase is determinated
    by SCSI ID as follows:

7 > 6 > 5 > 4 > 3 > 2 > 1 > 0 > 15 > 14 > 13 > 12 > 11 > 10 > 9 > 8

CN6 Setting terminals

  | | | |
   | | +-- Motor Start Mode
   | +---- SCSI bus parity
   +------ Offline self-diagnostics

Motor Start Mode
Set how to control the starting of the IDD spindle motor according
to the following table. This setting only determines the operation
mode when the power supply is turned on or the microcode is down-
loaded. In both modes, stopping or restarting the spindle motor can
be controlled by specifying the START/STOP UNIT command.

 CN6 1-2 OPEN    Starting of the motor is controlled with the START/
                 STOP UNIT command.

    x1-2 CLOSED  The motor is started immediately after the power
                 supply is turned on or the microcode is downloaded.

CN6 SCSI Bus Parity
Set whether the SCSI data bus parity bit check is performed according
to the following table.

CN6 3-4 OPEN Not performed

    x3-4 CLOSED  Performed

CN6 Offline self-diagnostics
Setting terminals CN6 5-6 are used to set starting/stopping the IDD
offline self-diagnostics. The offline self-diagnostics can test the
normality of the IDD controller function and the basic read/write
operation of the disk drive. In normal operation, the setting
terminal must be open.

CN6 5-6 OPEN Stopped (normal operation mode)x

     5-6 CLOSED  Executed (diagnostic mode)

CN7 Setting terminals

   +2+4+6+8+          +1+3+5+
   | | | |X|          | | | |
   +1+3+5+7+          +2+4+6+
    | | | +------------+-+-+--+-- Differential type 16-Bit SCSI
    | | |              | | |  |   * 16-bit SCSI mode setting
    | | |              | | |  +-- Single-Ended type, 8-bit SCSI
    | | |              | | |      Connection of SCSI terminating
    | | |              | | |      resistor on SCSI interface
    | | +--------------+-+-+----- Write protect
    | +----------------+-+------- (IDD Reset signal)
    +------------------+--------- (Spindle Sync Pulse signal

*Single-Ended 8Bit *Differential 8Bit
*Single-Ended 16Bit *Differential 16Bit

CN7 Write Protect
Set setting terminals CN7 5-6 enable or disable the write protect
function provided for the IDD. When the write protect function is
enabled, writing to the disk medium is disabled.

CN7 5-6 OPEN Write operation is enabledx

CN7 5-6 CLOSED Write operation is disable

CN7 Terminator resistor Single-Ended type 8-bit SCSI
Setting terminals CN7 7-8 set whether to use the terminating resitor
circuit on the SCSI interface provided for the IDD. The setting
terminals enable the terminating resistor circuit to be connected on
the SCSI interface. Only the IDD of single-ended type is provided
with the terminating resistor circuit.

CN7 7-8 OPEN Terminator resistor circuit is not connected.

    x7-8 CLOSED  Terminator resistor circuit is connected.

CN7 SCSI mode setting Differential type 16-bit SCSI
Set setting terminal CN7 7-8 to enable or disable the 16-bit SCSI
mode. When the 16-bit SCSI mode is enabled, all data bus (DB00 to
DB15, DBP0, DBP1) can be effective.

When the Differential type 16-bit SCSI IDD is used as 8-bit SCSI
device, this setting must be open.

CN7 7-8 OPEN 8-bit SCSI mode

CN7 7-8 CLOSED 16-bit SCSI modex

 CN10 Terminating Resistor Single-Ended type 16-bit SCSI
   +4+2+  Setting terminals CN10 1-2 and 3-4 whether to use the
   | | |  terminating resistor circuit on the SCSI interface provided
   +3+1+  for the IDD. The setting terminals enable the terminating
 resistor circuit to be connected on the SCSI interface.

This setting is effective when the external operator panel (S6) is
connected and pin A9 (TERM-ON) is open.

 CN10 1-2 and 3-4  OPEN   Terminator resistor circuit is not

CN10 1-2 and 3-4 CLOSED Terminator resistor circuit is connected.x


FUJITSU M2932/34 SERIES OEM MANUAL C141-E022-01EN 3/1995

Installation direction

     horizontally                           vertically
   +-----------------+           +--+                      +--+
   |                 |           |  +-----+          +-----+  |
   |                 |           |  |     |          |     |  |
 +-+-----------------+-+         |  |     |          |     |  |
 +---------------------+         |  |     |          |     |  |
                                 |  |     |          |     |  |
      x           x              |  |     |          |     |  |
 +------x------x-------+         |  +-----+          +-----+  |
 +-+------x--x-------+-+         +--+                      +--+
   |       xx        |
   |     x    x      |
     x            x
                         |        |
                         |        |
                         |        |
                         |        |
                         |        |

The permissible orientations of the IDD are shown above, and the
tolerance of the angle is 5* from the horizontal plane.

Mounting frame structure
Generally, SG an FG are connected at one point in the system
enclosure. Therefore, use following procedure to maintain the
insulation when mounting the IDD:

 a) Use the frame with an embossed structure or the like to avoid
    contact between the DE base and FG. Mount the IDD with making a
    gap of 2.5 mm or more between the IDD and the frame of the system.

 b) The inward projection of the screw from the IDD frame wall at the
    corner must be 4 mm or less.

Limitatation of side-mounting: When the drive is mounted using side
screw holes, do not use the center hole.

External magnetic field
The drive should not be installed near the ferromagnetic body like a
speaker to avoid the influence of the external magnetic field.

Ambient temperature
When the IDD is operating, the ambient temperature measured 3 cm from
the disk enclosure (DE) surface and from the PCA surface must satisfy
the specified requirement. For the DE surface temperature at opera-
ting, the contact temperature at the measurement point must satisfy
the specified requirement.

 Sequential starting of spindle motors
 After the power is turned on to the IDD, a large amount of current
 flows in the +12 V DC line when the spindle motor rotation starts.
 Therefore, if more than one IDD is used, the spindle motors should
 be started sequentially using one of the following procedures to pre-
 vent overload of the power supply unit.

 1. Issue START/STOP UNIT commands at 20-second intervals to start
    the spindle motors.

 2. Turn on the +12 V DC power in the power supply unit at 20-second
    intervals to start the spindle motors sequentially.

Noise filter
To eliminate AC line noise, a noise filter should be installed at the
AC input terminal on the IDD power supply unit. The specification of
this noise filter is as follows:

       Attenuation:          40 dB or more at 10 MHz.
       Circuit construction: T-configuration is recommended.

SCSI cable
All SCSI devices on one bus are daisy-chained with an SCSI cable.
A terminating resistor must be mounted in the SCSI device at each end
of the SCSI cable.

The maximum number of SCSI devices that can be connected to the SCSI
bus is 8, including the host adapter, IDD, and other SCSI equipment.

The maximum length of the SCSI cable is as follows. If more than one
SCSI device is connected, the total cable length must not exceed the

8-BIT, 6m cable length, Single-Ended
16-BIT, 3m cable length, Single-Ended (Up to 6m is allowable for 5
MB/s or less).
8/16-Bit, 25m cable length, Differential

For the SCSI cables, the use of 25- and 34-pair twisted pair cables
satisfying the requirements in the following table is recommended.

 |Requirements    | 8-bit SCSI (25-pair)  | 16-bit SCSI (34-pair)|
 |Conductor size  | 28 AWG or bigger      | 30 AWG or bigger     |
 |Characteristic  |                 90 to 132                    |
 |impedance       |                                              |
 |Twist pair cable| Pins n and n+1          Pins n and n+33      |
 |condition       | (n: odd number)                              |

DC ground
The DC ground cable must always be connected to the IDD because no
faston terminal dedicated to SG is provided with the IDD. Therefore,
when SG and FG are connected in the system, it is necessary to
connect SG and FG at the power supply or to connect SG of the power
supply to FG of the system.

External operator panel
The external operator panel is installed only when required for the
system. If it is unnecessary, pins 01 and 02 of CN20 and pins 01 to
06 of CN4: connector for the external operator panel on the IDD must
be opened.

SCSI bus configuration
Up to eight SCSI devices operating as an initiator or a target can
be connected to the SCSI bus for the 8-bit SCSI and up to 16 SCSI
devices operating as an initiator or a target can be connected to the
SCSI bus for the 16-bit SCSI in any combination.

For example, the system can be configured as multi-host system on
which multiple host computers that operate as initiator or connected
through the SCSI bus.

Using disconnect/reconnect function, concurrent input/output
processing is possible on multi-SCSI devices.

Recommended components for connection
SCSI cable
Cable socket (Closed-end type)
8-bit FCN-707B050-AU/B Fujitsu
16-bit 786090-7 AMP

Cable socket (Through-end type)
8-bit Fujitsu FCN-707B050-AU/O
16-bit -

 Signal cable
 8-bit UL20184-LT25PX28AWG Hitachi
       455-248-50 SPECTRA-STRIP

Power supply cable
Cable socket housing 8/16-bit AMP 1-480424-0
Contact 8/16-bit 60619-4 AEG 20 to 14
Cable 8/16-bit 60617-4 AWG 24 to 18

External operator panel
Cable socket housing 8/16-bit 608283302845000 ELCO

 Contact 8/16-bit 608283051330808 Wires AWG 24 to 30 ELCO
                  60828335130808 Wires AWG 22 to 26 ELCO

Cable socket housing 8/16-bit FCN-723J006/2M Fujitsu

Contact 8/16-bit FCN-723J-G-AM Fujitsu

Cable 8/16-bit AWG 28

8-bit SCSI Connector
The connector for the SCSI bus is an unshielded standard connector
which has two 25-pin rows spaced 2.54 mm (0.1 inch) apart.

16-bit SCSI Connector
The connector for the SCSI bus is an unshielded P connector
conforming to SCSI-3 type which has two 34-in rows spaced 1.27 (0.05
inch) apart.

 a) Do not connect or disconnect connectors or change terminal except
    pin 5-6 of CN6 (offline self-diagnostics)/pin 5-6 of CN7 (write
    protect) when power is turned on.

 b) Do not move the drive when power is turned on or until the drive
    completely stops (for 30 seconds) after power is truned off.

Mounting procedures
Since mounting the drive depends on the system cabinet structure,
determine the work procedures considering the requirements specific
to each system. The general mounting method and items to be checked
are shown below.

 1) With a system to which an external operator panel is mounted, if
    it is difficult to access the connector after the drive is
    mounted on the system cabinet, connect the external operator
    panel cable before mounting the drive.

 2) Fix the drive in the system cabinet with four mounting screws as

  - The drive has 10 mounting holes (both sides: 3x2, bottom: 4). Fix
    the drive by using four mounting holes of both sides or the

  - Use mounting screws whose lengths inside the drive mounting frame
    are 4 mm or less when the screws ae tightened.

  - When mounting the drive, be careful not to damage parts on the

 3) Check that the DE (signal ground) does not touch the system
    cabinet chassis (frame ground). There must be a 2.5 mm or more
    space between the DE and chassis.

Connecting Cables
Connect the IDD and system with the following cables.

- Power cable

- SCSI cable

- External operator panel cable (if required)

- Spindle sync cable

The general procedures and notes on connecting cables are described
below. Especiallly, pay attention to the inserting direction of each
cable connector.

Check that system power is off before connecting or disconnecting
cables. Do not connect or disconnect cables when power is on.

a) Connect power cable

b) Connect the external operator panel (if required for the system)

c) Connect the SCSI cable

 d) Fix the cables so that they do not touch the DE and PCAs, or so
    that the smooth flow of the cooling air in the system cabinet is

 1. Be careful of the insertion directions of the SCSI connectors.
    With the system in which terminating resistor power is supplied
    via the SCSI cable, if the power is turned on, the overcurrent
    protection fuse of the terminating resistor power supplier may be
    blown or the cable may be burnt if overcurrent protection is not

    When the recommended parts are used, inserting cables in the
    wrong direction can be prevented.

 2. To connect SCSI devices, be careful of the connection position
    of the cable. Check that the SCSI device with the terminating
    resistor is the last device connected to the cable.


FUJITSU M2932/34 SERIES OEM MANUAL C141-E022-01EN 3/1995

510 KB multi-segment buffer
Data is transferred between SCSI bus and disk media through the
embedded 510 KB data buffer in the IDD. This buffer can be devided
into maximum 32 areas. This feature provides the suitable usage
environment for users.

Since the initiator can control the disconnect/reconnect timing on
the SCSI bus by specifying the condition of stored data to the data
buffer or empty condition of the data buffer, the initiator can
perform the effective input/output operations with utilizing high
data transfer capability of the SCSI bus regardless of actual data
transfer rate of the disk drive.

Read-ahead cache feature
After executing the READ command, the IDD reads automatically and
stores (prefetches) the subsequent data blocks into the data buffer
(Read-ahead caching).

The high speed sequential data access can be achieved by transferring
the data from the data buffer without reaccessing the disk in case
the subsequent command requests the prefetched data blocks.

Error recovery
The IDD can try to recover from errors in SCSI bus or the disk drive
using its powerful retry processing. If a recoverable data check
occurs, error-free data can be transferred to the initiator after
being corrected in the data buffer. The initiator software is
released from the complicated error recover processing by these error
recovery functions of the IDD.

Defective block slipping
A logical data block can be reallocated in a physical sequence by
slipping the defective data block at formatting. This results in high
speed contiguous data block processing without a revolution delay due
to defective data block.

Microcode downloading
The IDD implements the microcode download feature. This feature
achieves easy maintainability of the IDD and function enhancing.

SCSI/CCS standard
The IDD provides not only SCSI basic functions but also the
following features:

 - Arbitration
 - Disconnection/reselection
 - Data bus parity
 - Command set which meets the logical specification of the SCSI CCS
   (Common Command Set for Direct Access Device) requirements.

The SCSI commands can manipulate data through logical block
addressing regardless of the physical characteristics of the disk
drive. This allows software to accommodate future expansion of
system functions.

Data security at power failure
Integrity of the data on the disk is guaranteed against all forms of
DC power failure except on blocks where a write operation is being
performed. The above does not applied to formatting disks or
assigning alternate blocks.

16-byte data error detection/correction code for the data field. It
is possible to on-the-fly, single burst errors with lengths of up to
19 bits, correct single burst errors with lengths of up to 46 bits,
correct triple burst errors with lengths of up to 10 bits, and
detect quadruple burst errors with lenght of up to 10 bits.

Defect list
Information of the defect location on the disk is managed by the
defect list. The following are defect lists which the IDD manages.

 - P list (Primary defect list): This list consists of defect location
   information available at the disk drive shipment and is recoreded
   in a system space. The defects in this list are permanent, so the
   INIT must execute the alternate block allocation using this list
   when initializing the disk.

 - D list (Data defect list): This list consists of defect location
   information specified in a FORMAT UNIT command by the INIT at the
   initialization of the disk. This information is recorded in the
   system space of the disk drive as the G list. To execute the
   alternate block allocation, the FORMAT UNIT command must be

 - C list (Certification defect list): This list consists of location
   information on defective blocks which are detected by the verifying
   operation (certification) of the data block after the initiation
   when executing the FORMAT UNIT command. The IDD generates this
   information when executing the FORMAT UNIT command, and the
   alternate block allocation is made upon the defective block. This
   information is recorded in the system space of the disk drive as
   the G list

 - G list (Growth defect list): This list consists of defective
   logical data block location information specified in a REASSIGN
   BLOCKS command by the INIT, information on defective logical data
   blocks assigned alternate blocks by means of IDD automatic
   alternate block allocation, information specified as the D list,
   and information generated as the C list. They are recoreded in the
   system space on the disk drive.

The INIT can read out the contents of the P and G lists by the READ
DEFECT DATA command.

Since the disk drive is formatted with a specific (default) data
format for each model (part number) when shipped from the factory,
the disk need not be formatted (initialized) when it is installed in
the system.

However, when the system needs data attributes different from the
default format, all sides of the disk must be formatted (initialized)
according to the procedures below.

The user can change the following data attributes at initialization:

  - Logical data block length
  - Number of logical data blocks or number of cylinder in the user
  - Alternate spare area size

This section outlines the formatting at installation.

Setting parameters
The user can specify the optimal operation mode for the user system
environments by setting the following parameters with the MODE

- Error recovery parameter
- Disconnection/reconnection parameter
- Caching parameter
- Control mode parameter

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