Hard Drive: FUJITSU: M2245SA 97MB 5.25"/FH SCSI1 SE
M 2 2 4 5 S A FUJITSU
NO MORE PRODUCED Native| Translation
------+-----+-----+-----
Form 5.25"/FH Cylinders 823| | |
Capacity form/unform 97/ 120 MB Heads 7| | |
Seek time / track 25.0/ 5.0 ms Sector/track 35| | |
Controller SCSI1 SINGLE-ENDED Precompensation
Cache/Buffer 16 KB Landing Zone
Data transfer rate 1.250 MB/S int Bytes/Sector 512
2.500 MB/S ext SYNC
Recording method RLL 2/7 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 2 | 20
seek W Rotation RPM 3600
read/write 32.0 W Acoustic dBA 45
spin-up W ECC Bit
MTBF h 30000
Warranty Month
Lift/Lock/Park YES Certificates
Layout
FUJITSU M2244/2245/2246-S/SA/SB OEM MANUAL B03P-4805-0202A...01
+------------------------------------------------------+ |+0+1+2+3+10---CN102 +RM57--+ |--+ |+-+-+-+-++----1 +------+ | |-SOLDERED | LED +RM57--+ | | SIDE | COMPONENT +------+ |XX| | SIDE 2-1 2-1 |XX|SCSI | CN105 | |CN104 |XX|INTERFACE | | | | | |XX| | 1615 1615 |XX| | 16-CNH4-+ +CN103 |XX| | 15------1 9----1 |XX| | 16-CNH2--2 |XX| | 15-------1 |XX| | |XX| | |XX| | | |XX Power |16-CNH3-2 16-CNH1---2 | |XX |15------1 15--------1 |--+ +------------------------------------------------------+
Jumpers
FUJITSU M2244/2245/2246-S/SA/SB OEM MANUAL B03P-4805-0202A...01
Jumper settings
===============
x = Jumper set at factory
Short plugs are inserted as follows when shipped from the factory.
CN105: Between 1 and 2, 3 and 4, 5 and 6, 7 and 8, 9 and 10 CNH2: Between 15 and 16 CNH4: Between 15 and 16
The following settings are model specific.
CNH4: Between 13 and 14: M2246
Between 11 and 12: M2245
No short plug between 11 and 12 or 13 and 14: M2244
Host interface connector signal assignements
--------------------------------------------
Pin number Signal Signal Pin number
--------------------------------------------
01 GND -DB0 02
03 GND -DB1 04
05 GND -DB2 06
07 GND -DB3 08
09 GND -DB4 10
11 GND -DB5 12
13 GND -DB6 14
15 GND -DB7 16
17 GND -DB8 18
19 GND GND 20
21 GND GND 22
23 GND GND 24
25 (Open) TERMPWR * 26
27 GND GND 28
29 GND GND 30
31 GND -ATN 32
33 GND GND 34
35 GND -BSY 36
37 GND -ACK 38
39 GND -RST 40
41 GND -MSG 42
43 GND -SEL 44
45 GND -C/D 46
47 GND -REQ 48
49 GND -I/O 50
* Power supply for terminator (+5VDC)
CN105 SCSI ID setting
----------------------
SCSI ID 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
----------------------------
x 7 CLOSED CLOSED CLOSED
A specified ID must be unique on the SCSI bus.
The priority of SCSI bus use in ARBITRATION phase is as follows:
7 > 6 > 5 > 4 > 3 > 2 > 1 > 0
CN105 SCSI parity check option setting
---------------------------------------
7-8 OPEN Disable: IDD does not execute parity check
x CLOSED Enable: IDD executes a parity check
This option specifies whether to enable or disable the SCSI data bus
parity bit check facility.
CN105 Arbitration option setting
---------------------------------
9-10 OPEN Disable
CLOSED Enable
This option specifies whether to enable or disable the Arbitration
phase. If the Arbitration phase is disabled, the Disconnect/reconnect
function on SCSI is inhibited.
CNH4 Device type selection
---------------------------
11-12 13-14
----------------------------------------
M2244S/SA/SB OPEN OPEN
M2245S/SA/SB CLOSED OPEN
M2246S/SA/SB OPEN CLOSED
Setting values are valid when the power is on.
CNH4 Option for motor start control from interface setting
-----------------------------------------------------------
15-16 CLOSED Disable: The spindle motor starts when IDD's
power is turned on.
OPEN Enable: The spindle motor starts by Start/Stop
Unit command
This option specifies whether to enable or disable the function for
spindle motor start control from interface.
LED indicators
--------------
+---+---+---+---+---------------------------------------------+
|L3 |L2 |L1 |L0 | |
+---+---+---+---+-------+ |
|RED| AMBER | COLOR | IDD state |
+---+---+---+---+-------+--------------------+----------------+
|OFF|OFF|OFF|OFF| Operating |LEDs Indicates |
+---+---+---+---+----------------------------+the operation |
|OFF|OFF|OFF|ON | Idle (IDD ready) |status |
+---+---+---+---+----------------------------+ |
|OFF|OFF|ON |ON | In diagnostics | |
+---+---+---+---+----------------------------+----------------+
|OFF|OFF|ON |OFF| Drive error has been de- |LEDs Indicates |
| | | | | tected during diagnosing |the results of |
+---+---+---+---+----------------------------+diagnostics |
|OFF|ON |OFF|OFF| ROM error has been detected| |
| | | | | during operation | |
+---+---+---+---+----------------------------+ |
|OFF|ON |OFF|ON | RAM error has been detected| |
| | | | | during operation | |
+---+---+---+---+----------------------------+ |
|OFF|ON |ON |OFF| Register error has been de-| |
| | | | | tected during diagnosing | |
+---+---+---+---+----------------------------+ |
|OFF|ON |ON |ON | Buffer error has been de- | |
| | | | | tected during diagnosing | |
+---+---+---+---+----------------------------+----------------+
|ON |OFF|OFF|OFF| Drive hard error has been |LEDs Indicates |
| | | | | detected |the fault status|
+---+---+---+---+----------------------------+ |
|ON |OFF|OFF|ON | Spindle motor revolution | |
| | | | | fewer than 90% of standard | |
+---+---+---+---+----------------------------+ |
|ON |OFF|ON |OFF| VCM overcurrent | |
+---+---+---+---+----------------------------+ |
|ON |OFF|ON |ON | Initial seek timeout | |
+---+---+---+---+----------------------------+ |
|ON |ON |OFF|OFF| +12V/+5V, less than 80% of | |
| | | | | standard | |
+---+---+---+---+----------------------------+ |
|ON |ON |OFF|ON | Seek error | |
+---+---+---+---+----------------------------+ |
|ON |ON |ON |ON | Controller hard error | |
+---+---+---+---+----------------------------+----------------+
The 4-bit LED (L3 to L0) indicates the IDD operation status and
results of diagnostics.
Operator panel connection
-------------------------
The Operator panel connector is connected to Ready indicator, and it
also provides for optional connection of write protect switch.
+--+----------+---------------------+
View from +------+ | | Signal | |
cable side | 3 1 | | | Mnemonic |Definiton |
of connector| 4 2 | +--+----------+---------------------+
---+------+-- | 1| Z01A |TTL High level |
+--+----------+---------------------+
| 2| *FPTCT |Write Protect Switch |
+--+----------+---------------------+
| 3| 0V |Signal ground |
+--+----------+---------------------+
| 4| *CMDCMP |Ready indicator |
+--+----------+---------------------+
DC Power and pin connector assignments
--------------------------------------
+------------+ pin 1 +12 VDC
-----+ 1 2 3 4 +-- pin 2 +12 Volts Return
+------------+ pin 3 + 5 Volts Return
View from cable pin 4 + 5 VDC
side of connector
Install
FUJITSU M2244/2245/2246-S/SA/SB OEM MANUAL B03P-4805-0202A...1
Notes on installation
=====================
Drive mounting
--------------
horizontally vertically
+-----------------+ +--+ +--+ +------------------+
| | | +-----+ +-----+ | | | x
| | | | | | | | x+----------------+x
+-+-----------------+-+ | | | | | | ||x x||
+---------------------+ | | | | | | || x x ||
| | | | | | || x x ||
x x | | | | | | || x x ||
+------x------x-------+ | +-----+ +-----+ | || xx ||
+-+------x--x-------+-+ +--+ +--+ || x x ||
| xx | || x x ||
| x x | || x x ||
+---x--------x----+ |x x|
x x x++----------------++x
There are three possible installation directions, and the mounting
angle must be 5* from the horizontal.
Ambient temperature
-------------------
The operating temperature range of the IDD is specified at a distance
of 3 cm from the IDD.
Air Circulation
---------------
The heads, disks, and actuator are sealed inside a cover to kept out
dust and other pollutants.
This head assembly has a closed-loop air recirculation system using
the blower effect of the rotating disks to continuously cycle air
through the recirculation filter. This filter traps any dust
generated inside the enclosure. To prevent negative pressure in the
vicinity of the spindle when the disks begin rotating, a breather
filter is attached. This breather filter also equalizes the internal
air pressure with the atmospheric pressure due to surrounding
temperature changes.
DC Grounding
------------
For DC ground, a fasten tab is provided as the SG connector.
Frame Structure
---------------
The casting/DE (signal ground) is electrically isolated from the
mounting brackets (frame ground). In this isolation is to be main-
tained within the system, precautions must be taken. An embossed
structure (or any other structure that does not touch the aluminium
base) should be used to prevent the aluminium base from touching the
frame ground. The mounting screws should project no more than 4 mm
from the outer wall of the drive mounting bracket.
System Configuration
--------------------
Host system, IDDs, and other SCSI controllers are connected (daisy-
chained) to SCSI provided that the total number of connected SCSI
devices is a maximum of eigth.
+--------+
|HOST (1)| +---------+
| | <-SCSI---+---------> | IDD |
+--------+ | +---------+
|
| +---------+
+---------> | IDD |
| +---------+
|
|
|
|
+--------+ | +---------+ Other SCSI
|HOST (2)| <--------+---------->| | Controller
| | | |
+--------+ +---------+
System configuration example
Recommended parts for connection
--------------------------------
+------------+-----------------+---------------+--------------+ | |Name |Model |Manufacturer | +------------+-----------------+---------------+--------------+ | Host |Cable Connector |FCN-7007J050- |Fujitsu | | interface |(IDD, closed-end)|AU/B | | | SCSI +-----------------+---------------+--------------+ | |Cable Connector |FCN-707J050- |Fujitsu | | |IDD, throughend) |AU/0 | | | +-----------------+---------------+--------------+ | |Cable |455-248-50 |SPECTRA- | | | | | STRIP | +------------+-----------------+---------------+--------------+ | Drive Power|Cable Connector |1-480424-0 |AMP | | Supply +-----------------+---------------+--------------+ | |Contact |170121-4 |AMP | | +-----------------+---------------+--------------+ | |Cable |AWG-18 | | +------------+-----------------+---------------+--------------+ | SG |Cable faston |62187-1 |AMP | | |receptacle | | | | +-----------------+---------------+--------------+ | |Faston tab for |61761-2 |AMP | | |the IDD | | | | +-----------------+---------------+--------------+ | |Cable |AWG20 | | +------------+-----------------+---------------+--------------+
Connection of components
------------------------
The following figure shows the cable connection between IDD and host
system. Total length of the SCSI interface cable must be shorter than
7 m. The terminator is only installed in socket on controller PCA
when IDD is connected to the beginning or ending position of SCSI
cable. Up to eigth SCSI devices can be connected to the SCSI bus.
+-------+-+ +---------+ Power +---------+
|Host | | | IDD1 XxxxxxxxxxxxX Power |
|System |T+---SCSI-+-+ +---+ XxxxxxX Supply |
| +-+ | +---------+ | X XxxxX |
| | | | X X +----+----+
+---------+ | | X X |
| +---------+ | X X |
| | IDD2 Xxxx|xx X |
+-+ +---o---X---FG---+
| +---------+ | X
| F X
| G X
| | X
| | X Power
| +-+--------+ | X
| |T|IDDn Xxx|xxxx
+-+ | +--+
+-+--------+
FG = Frame Ground -- T = Terminator
Power = xxxx SCSI = -----
Signal values and electrical levels
-----------------------------------
Signal value Electrical level ------------------------------------------------- TRUE, asserted, on, or 1 Low (0.0 to 0.8 VDC) FALSE, negated, released, High (2.0 to 5.25 VDC) off, or 0
Driver and receiver circuits
----------------------------
(1) Driver circuit for signal other than REQ and ACK
The MB463 (Fujitsu) or open collector NAND gate equivalent to
SN7438 (TI) is recommended.
(2) Receiver circuit for signals other than REQ and ACK
A schmitt trigger circuit equivalent to SN74LS240 (TI) is
recommended.
Termination circuit
-------------------
The termination circuit shown in the following figure are installed
in SCSI devices which are connected at both ends of the interface
cable.
+5 VDC
--+--
|
+++ 220 2%
| |
-SIGNAL +++
------------+
+++ 330 2%
| |
GND +++
------------+
+++
Terminators are already installed in IDD a shipment. Remove both
terminators if the IDD is not installed at beginning or ending
posistion of SCSI cable.
Connector Requirements
----------------------
The nonshielded SCSI connector installed on the IDD is a 50-conductor
connector consisting of two rows of 25 male pins with adjacent pins
2.54 mm (0.1 in) apart.
The nonshielded cable connector shall be a 50-conductor connector
consisting of two rows of 25 female contacts with adjacent contacts
2.54 mm (0.1 in) apart.
Cable requirements
------------------
A characteristic impedance of 100 10% i srecommended for unshield-
ed twisted-pair ribbon cable. A characteristics impedance greater
than 90 is preferred for shielded cable. A minimum conductor size of
28 AWG shall be employed. It is recommended that shielded cable be
used for connection outside of a cabinet.
To minimize discontinuities and signal reflections, cables of
different impedance should not be used in the same bus. The maximum
cable length is 7m. 1m or more cable length is recommended between
SCSI devices.
Features
FUJITSU M2244/2245/2246-S/SA/SB OEM MANUAL B03P-4805-0202A...01
Automatic data error correction
-------------------------------
If a recoverable error occurs, IDD attempts to recover from errors
inside the IDD. Correctable data error can be corrected in the data
buffer so that error-free data can be transferred to the host system.
Alternate block processing
--------------------------
Defective blocks are replaced by alternate blocks. Host system soft-
ware can deal with the entire space of the drive as if was defect-
free. High-speed alternate block processing is available without seek
operations, because an alternate block area is provided for each
cylinder.
Media defects
-------------
Cylinder 0, Head 0 and 1 are defect free.
M2244S/SA/SB....85 or fewer (48 or fewer per surface)
M2245S/SA/SB...120 or fewer (48 or fewer per surface)
M2246S/SA/SB...171 or fewer (48 or fewer per surface)
The maximum defect length is 32 bytes.
Controller circuit
------------------
Imported functions are listed below:
- Data buffer (8 KB x 2)
- SCSI protocol control an ddata transfer control
- Sector format control
- ID register
- SERDES
- ECC
- Data comparision and data error correction
- Error recovery and self diagnostic
Reformatting
------------
At the installation time, it is not necessary to initialize the disk
medium if the sector interleaving feature is not used, because the
IDDs have already initialize (formatted) with no sector interleaving
at shipment.
If it required to use the sector interleaving, or to change the
sector size, the IDD must be reformatted according to the following
procedure at the installation.
1) Connect the IDD to be reformatted to the system.
2) If it is required to change the sector size (data block length),
issue a Mode Select command that specifies the new data block
length as shown in the following table, prior to step 3).
+-----------------+ +-------------------+
| CDB | | Parameter |
+-----------------+ +-------------------+
Byte 0 | X'15' | Byte 0 | X'00' |
+-----------------+ +-------------------+
1 |0 0 0 1 0 0 0 0 | 1 | X'00' |
+-----------------+ +-------------------+
2 | X'00' | 2 | X'00' |
+-----------------+ +-------------------+
3 | X'00' | 3 | X'08' |
+-----------------+ +-------------------+
4 | X'0C' | 4 | X'00' |
+-----------------+ +-------------------+
5 | X'00' | 5 | X'00' |
+-----------------+ +-------------------+
6 | X'00' |
+-------------------+
7 | X'00' |
+-------------------+
8 | X'00' |
+-------------------------------+ +-------------------+
|X'000100' for 256 bytes/sector| +-- 9 |Block Length (MSB) |
+-------------------------------+ | +-------------------+
|X'000200' for 512 bytes/sector+>| 10 |Block Length |
+-------------------------------+ | +-------------------+
|X'000400' for 1024 bytes/sector| +-- 11 |Block Length (LSB) |
+-------------------------------+ +-------------------+
3) Issue a Format Unit command with the desired Interleaving Factor.
Format unit command for reformatting
------------------------------------
+-----------------+
| CDB |
+-----------------+
Byte 0 | X'04' |
+-----------------+
1 |0 0 001 0 0 0 0 |
+-----------------+
2 | X'00' |
+-----------------+
3 | X'00' |
+-----------------+
4 |Interleave Factor|
+-----------------+
5 | X'00' |
+-----------------+
The disk medium is reformatted with the specified block length and
interleaving factor, and the alternate block assignment for the
medium defect is performed according to the Primary Defect list.
Sector Interleaving
-------------------
Sector interleaving enables the data transfer rate required on SCSI
during read or write operation of contiguous blocks to be decreased.
The Format unit command permits a sector interval between blocks to
be specified as an interleaving factor. The user need not be concern-
ed with correspondences of blocks with their physical sector
locations, because any data access after the completion of formatting
is performed in accordance with the block arrangement.
Data buffer
-----------
IDD contains 16 KG data buffer to improve the total system
throughput.
Low power consumption
---------------------
The power consumption is 32 W (typical). This low power consumption
enables the unit to be used in a wide environmental temperature
range (5*C to 45*C) without a cooling fan.
Low noise and low vibration
---------------------------
The IDD's low noise input, approx. 45 dB (A-scale weighting) even
during seeking, makes it ideal for office use.
The IDD has four rubber vibration isolators, which minimize the
transfer of motion.
Start and stop time
-------------------
Start time is 20 seconds or less, and stop time is 15 seconds or less
using dynamic braking to prevent disk and head wear.
Reliability
-----------
Mean Time Between Failures (MTBF)
The estimated MTBF of theIDD during its life time is 30,000 hours
after an initial 3-month period.
Mean Time To Repair (MTTR)
MTTR is the average time taken by a well-trained service mechanic to
diagnose and repair a unit malfunction. IDD is designed for a MTTR
of 30 minutes or less.
Service Life
Overhaul of the drive is not required for the first five years.
Spindle Motor
-------------
The disk turned by a direct-drive DC motor. The motor attains a very
precise rotational speed of 3600 rpm, 1%. This precision is
achieved through a feedback circuit which includes Hall-effect
elements mounted within the motor assembly.
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