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Articles / TULARC / PC info / Hard Drives / FUJITSU Hard Drives / |  |
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Hard Drive: FUJITSU: M2227D2 43MB 3.5"/HH MFM ST506 |
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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
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 +------------------------------------------------------+
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.
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
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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