M 2 9 4 9 R A U FUJITSU
Native| Translation
------+-----+-----+-----
Form 3.5"/HH Cylinders 5772| | |
Capacity form/unform 9100/ MB Heads 18| | |
Seek time / track 11.5/ 2.0 ms Sector/track | | |
Controller SCSI2 DI/WI/FAST Precompensation
Cache/Buffer 506 KB Landing Zone
Data transfer rate 9.900 MB/S int Bytes/Sector 512
20.000 MB/S ext SYNC
Recording method PR4ML 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
spin-up 16.5 W ECC Bit
MTBF h 1000000
Warranty Month
Lift/Lock/Park YES Certificates
**********************************************************************
L A Y O U T
**********************************************************************
FUJITSU M2932/M2934 16-BIT DIFFERENTIAL OEM MANUAL C141-E022-01EN
+---------------------------------------------------------+
| +--+ ++++CN6 XXX
| | +-+ ++++ XXX
| | | | XXX
| CN25 | CN9 XXX
| | | | +----+ XXX
| | | | |CN7 | XXX CN1
| | +-+ +----+ XXX
| +--+ +----+ |
| +--+ |CN4 | xxx
| +---+ | +-+ +----+ xxx
| +---+CN20 | | | xxx
| CN24 | CN8 xxx
| | | | xxx
| | | | xxx
| | +-+ XXxPower
| +--+ XXx
+---------------------------------------------------------+
16-Bit Differential
**********************************************************************
J U M P E R S
**********************************************************************
FUJITSU M2932/M2934 OEM MANUAL C141-E022-01EN
Jumper Setting
==============
x = Set at factory shipment
CN4 SCSI ID
-----------
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 |
+----------+-------+-------+-------+-------+
| 15x | CLOSED| CLOSED| CLOSED| CLOSED|
+----------+-------+-------+-------+-------+
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
---------------------
+2+4+6+
| | | |
+1+3+5+
| | +-- 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.
NOTE
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
connected.
CN10 1-2 and 3-4 CLOSED Terminator resistor circuit is connected.x
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I N S T A L L
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FUJITSU INSTALLATION CONDITIONS SCSI
Mounting in Cabinet
-------------------
Note the following points regarding mounting of the HDD in a cabinet.
If circumstances prevent the HDD from being mounted as explained
below, contact to distributers, reseller, or our sales offices.
- Mount the HDD in the specified orientation.
Mounting the HDD in an orientaion other than the specified one may
adversely affect the temperature or may cause unexpected mechanical
stress to the HDD. This may lead to a failure to guarantee the
reliability level stated in the device specifications.
- Use the specified mounting screw holes.
Mount the HDD using the mounting screw holes for each model.
If the HDD is attached by a means other than screws or with screws
but not at all specified locations (four locations), unexpected
vibration or shock may be applied to the HDD or the HDD may
mechanically resonate. This may lead to a failure to guarantee the
vibration and shock resistance levels stated in the device
specifications.
- Use mounting screws of appropriate length.
A screw shorter than appropriate length is likely to loosen, causing
the HDD to drop off the cabinet.
A screw longer than appropriate length may touch the HDD body,
causing external vibration or shock to the HDD body. This may lead to
a failure to guarantee the vibration and shock resistance levels
stated in the device specifications.
- Ensure clearance between the HDD and the cabinet.
Be sure that there is a minimum 2.5 mm clearance between the HDD and
the cabinet. Failure to do so may block ventilation and adversely
affect the operating temperature of the HDD. It may also cause the
HDD to touch the cabinet, which may then induce electrical noise or
transmit external mechanical vibration or shock directly to the HDD
body. This may result in degraded HDD performance and reliability.
Pay special attention to those models whose DE potential is not zero
volatage. If this type of model contacts the cabinet connecting the
DE to zero volatage, data errors or device faults will occur.
Grounding
---------
In an HDD with a frame, the DE and frame are electrically isolated
from each other.
The DE is connected to signal ground (SG); the frame is connected to
frame ground (FG). Isolating the DE and frame in this way prevents
the adverse effects of external electrical noise.
Generally, a computer system uses some means of connecting SG and FG
at one point in the system. The method used may vary depending on the
system structure or environmental conditions.
The DE potential in some models is not zero volatage. Be careful not
to ground the DE body of this type of model.
SCSI cable connection
---------------------
Do not confuse the connector orientation when connecting the SCSI
cable. Connecting the cable in the wrong orientation may blow the
fuse of the SCSI device that supplies power to the terminating
resistor. If the SCSI device has no fuse, misconnection may destroy
the SCSI cable.
Power-off
---------
When power is turned off, a dynamic brake stops the rotating spindle
motor. This requires a given time until the motor is completely
stopped.
Applying vibration or shock to the HDD while the spindle motor
rotates after power-off may damage the HDD.
Connecting and Disconnecting Interface Connector (2.5-inch HDD)
---------------------------------------------------------------
The printed circuit board assembly of the 2.5-inch HDD is about 0.9
mm thinner than that of conventional HDDs. When connecting or
disconnecting the interface connector, push or pull the connector
straight so as to not give excess stress to the printed circuit board
assembly. Never force a connector. Excess stress may cause the
printed circuit board assembly to warp or crack, resulting in poor
(or no) contact.
Hot Plug (SCSI Device)
----------------------
Our HDDs are designed to support the hot plug feature. However, a
drop in output voltage, output interruption, or noise may be caused
while the HDD is starting. To minimize these symptoms, it is
recommended that a discrete power supply be installed for each HDD.
Also, connection or disconnection of the HDD may cause noise on the
interface signal line and cause an interface malfunction.
To prevent such a failure, connect zero volatage (SG) first, then
connect the interface line, and finally connect the power line.
Reverse the procedure when disconnecting the HDD.
When disconnecting the HDD, do not apply vibration or shock to the
HDD, before the power is turned off. This may disturb control of the
head positioning and degrade data read-write performance.
In the worst case, applying excess shock may damage the head or disk,
resulting in data destruction.
If there is a chance that the power to the HDD containing the
terminating resistor will be turned off, design the system so that
power to the terminating resistor (TERMPWR) is supplied from another
SCSI device. Generally, TERMPWR is supplied from the initiator
(host).
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F E A T U R E S
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FUJITSU M2949S JUMPER SETTING
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.
ECC
---
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
specified.
- 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.
Formatting
----------
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
space
- 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
SELECT EXTENDED command:
- Error recovery parameter
- Disconnection/reconnection parameter
- Caching parameter
- Control mode parameter