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Hard Drive: FUJITSU: M2227D2 43MB 3.5"/HH MFM ST506




M 2 2 2 7 D 2    FUJITSU
NO MORE PRODUCED                                      Native|  Translation
                                                      ------+-----+-----+-----
Form                 3.5"/HH               Cylinders     615|     |     |
Capacity form/unform    43/   51 MB        Heads           8|     |     |
Seek time   / track  35.0/ 8.0 ms          Sector/track   17|     |     |
Controller           MFM / ST506           Precompensation 65535
Cache/Buffer               KB              Landing Zone      614
Data transfer rate    0.625 MB/S int       Bytes/Sector      512
                      0.625 MB/S ext
Recording method     MFM                            operating  | non-operating
                                                  -------------+--------------
Supply voltage     5/12 V       Temperature *C         5 45    |    -40 60
Power: sleep              W     Humidity     %        20 80    |      5 95
       standby            W     Altitude    km            3.000|        12.000
       idle               W     Shock        g         3       |     40
       seek           7.5 W     Rotation   RPM      3600
       read/write         W     Acoustic   dBA        43
       spin-up            W     ECC        Bit
                                MTBF         h      30000
                                Warranty Month
Lift/Lock/Park     NO           Certificates

Layout

FUJITSU M2225D2/M2226D2/M2227D2 OEM MANUAL 41FH5021E-05

  +------------------------------------------------------+
  |                                                SW1--+|xx B cable
  |                                     Terminator   |  ||xx card
  |                                     Drive mode   |  ||xx edge
  |                                                SW8--+|xx
  |                                                   +-+|xx
  |                                      Daisy-chain  |D||xx
  |                                      Radial       |R||xx
  |                                      Drive 4      |4||
  |                                      Drive 3      |3||xx A cable
  |                                      Drive 2      |2||xx card
  |                                      Drive 1      |1||xx edge
  |                                                   +-+|xx
  |                                                      |xx
  |                                                      |xx
  |                                                      |
  |                                                      |XX Power
  |                                                      |XX
  +------------------------------------------------------+

Jumpers

FUJITSU M2225D2/M2226D2/M2227D2 OEM MANUAL 41FH5021E-05

Jumper Settings
===============
x = Jumper is set from factory

Drive select
------------
Set one of the drive number (1 to 4) with the short plug as
follows.

  1   2  3  4  R  D
 +--+--+--+--+--+--+
 |XX|  |  |  |  |XX|
 ++-+-++-++-++--+--+
  |   |  |  +----------------- Drive select = DRIVE 4
  |   |  +--------------------              = DRIVE 3
  |   +-----------------------              = DRIVE 2
  +---------------------------              = DRIVE 1 x

Radial/daisy connection setting
-------------------------------

  1   2  3  4  R  D
 +--+--+--+--+--+--+
 |XX|  |  |  |  |XX|
 +--+--+--+--++-+-++
              |   +---------- Short plug = Daisy connection  x
              +-------------- Short plug = Radial connection

Set either radial or daisy connection.

Terminator connection
---------------------

  1 2 3 4 5 6 7 8
 +----------------+   When all switches other than SW7 are set on ON,
 |x x x x x x   x |   the terminator is connected.
 +----------------+

  1 2 3 4 5 6 7 8
 +----------------+   When all switches other than SW7 are set on OFF,
 |. . . . . .   . |   the terminator is not connected.
 +----------------+

Drive mode
----------

  1 2 3 4 5 6 7 8
 +----------------+
 |            .   |   Drive mode 1 is selected to set SW7 to OFF.
 +----------------+

  1 2 3 4 5 6 7 8
 +----------------+
 |            x   |   Drive mode 2 is selected to set SW7 to ON.
 +----------------+

To keep the high positioning accuracy, this drive renews the
positioning compensation data during the normal operation. This drive
has two mode, Drive mode 1 and 2, for this operation.

  Drive mode 1
  ------------
  Select drive mode 1 when the function of the connected controller
  satisfies following two items.
  - Read or Write operation instruction after Drive Select must be
    issued after confirming Seek Complete signal from the drive.
  - Drive Select signal must be turned off when the drive is not
    accessed even if only one drive is connected.

For this mode, the drive renews the compensation data after Drive
Select signal becomes false. During this opertion, Seek Complete
signal is false. Then the controller changes Drive Select signal to
true, and teh read and write operation is executed after Seek
Complete signal becomes true.

Drive mode 2
------------
When the controller does not have the the function of Drive mode 1,
the drive detects the renewal requirement for the positioning
compensation data, waits specific time, and stops sending data on
MFM RD Daa Line and Index signal (because the controller that
causes the serious time out error to count the Index signal is
available to use). After that, the drive performs the internal seek
for renewing the positioning compensation data, returns the original
cylinder and resumes the transmission of Read signal and Index
signal.

Install

FUJITSU M2225D2/M2226D2/M2227D2 OEM MANUAL 41FH5021E-05

Notes on installation
=====================

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

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

The drive may be installed as figure above.
In this case, installation horizontal rate shall be within 20
degrees. However, when inclines as the disk side comes lower side,
installation horizontal rate shall be within 5 degrees.

Never install PCA on the Top !!!

Ambient temperature
-------------------
The operating temperature range of the drive is specified at a dis-
tance of 3 cm from the drive. The operating temperature should not
exceed 45*C with considering cooling air flow. To satisfy above
condition, the base surface temperature under the Ready condition
should not exceed 60*C. The PCA should be cooled especially with
proper air circulation in the cabinet.

Cable requirements
------------------
The total control cable length in a multi-drive connection should not
exceed 6m.

Daisy chain connection
----------------------

 +-------------+ A cable      +--------------+
 |             +----------*---+  Drive 1     |
 |             +----------+---+              |
 |             | B cable  |   +--------------+
 |             |          *---+  Drive 2     |
 |             +----------+---+              |
 | Controller  | B cable  |   +--------------+
 |             |          *---+  Drive 3     |
 |             +----------+---+              |
 |             | B cable  |   +--------------+
 |             |          +---XX Terminator  |
 |             +--------------+  Drive 4     |
 |             | B cable      +--------------+
 |             |
 +-------------+

Connection of drive to its controller is shown in that figure. The
cable A (control signals) must be connected in series and the B
cable (R/W signals) in parallel. The termination of control signal
must be performed only at the last drive.

Radial connection
-----------------

 +-------------+              +--------------+
 |             +------A-------XX Terminator  |
 |             +------B-------+  Drive 1     |
 |             |              +--------------+
 |             +------A-------XX Terminator  |
 |             +------B-------+  Drive 2     |
 | Controller  |              +--------------+
 |             +------A-------XX Terminator  |
 |             +------B-------+  Drive 3     |
 |             |              +--------------+
 |             +------A-------XX Terminator  |
 |             +------B-------+  Drive 4     |
 |             |              +--------------+
 |             |
 +-------------+

Connection of drive to its controller is shown in that Fiugre. The
cable A (control signals) and the B cable (R/W signals) must be
connected in parallel. The termination of control signal must be
performed at all drives.

 Power cable
 -----------
 +-----------------+  1 = +12 V
 |  4   3   2   1  |  2 = +12 V RTN
 +-----------------+  3 = + 5 V RTN
                      4 = + 5 V

Features

FUJITSU M2225D2/M2226D2/M2227D2 OEM MANUAL 41FH5021E-05

Start and stop time
-------------------
Start time (time from when power is turned on until the drive is
ready) is 15 seconds or less and stop time (time to completely stop
when power is turned off) is 25 seconds or less.

AC line noise
-------------
To eliminate AC line noise, a noise filter of the specifications
given below should be incorporated in the AC input terminal of the
drive power supply.
Attenuation characteristics: 40 dB or grater at 10MHz
Circuit configuration: T type

Media error
-----------
Cylinder 0, Head 0 7 are defect free.
The number of defect in the M222XD2 are as follows:

 M2225D2 ..... max. 25
 M2226D2 ..... max. 38
 M2227D2 ..... max. 51

Mean Time Between Failures (MTBF)
---------------------------------
The estimated MTBF of this drive during its life time is 30,000 hours
after an initial 3-month period.

Mean Time To Repair
-------------------
MTTR is the average time taken by well-trained service mechanic to
diagnose and repair a unit malfunction. This drive is designed for a
MTTR of 30 minutes or less.

Service life
------------
Overhaul of this drive is not required for the first five year.

Power loss
----------
Integrity of the data on the disk is guaranteed against all forms of
abnormal DC power failure except a power failure during writing.

Write Precompensation
---------------------
Write precompensation is not necessary.













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