The contents of this manual is subject to
change without prior notice.
All Rights Reserved.
Copyright 1999 FUJITSU LIMITED
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PREFACE
This manual describes the MPF3xxxAT series, a 3.5-inch hard disk drive with a BUILT-IN controller
that is compatible with the ATA interface.
This manual explains, in detail, how to incorporate the hard disk drives into user systems.
This manual assumes that users have a basic knowledge of hard disk drives and their application in
computer systems.
This manual consists of the following six chapters:
Chapter 1DEVICE OVERVIEW
Chapter 2DEVICE CONFIGURATION
Chapter 3INSTALLATION CONDITIONS
Chapter 4THEORY OF DEVICE OPERATION
Chapter 5INTERFACE
Chapter 6OPERATIONS
In this manual, disk drives may be referred to as drives or devices.
C141-E099-01ENiii
Conventions for Alert Messages
This manual uses the following conventions to show the alert messages. An alert message consists of
an alert signal and alert statements. The alert signal consists of an alert symbol and a signal word or
just a signal word.
The following are the alert signals and their meanings:
This indicates a hazarous situation likely to result in serious personalinjury if the user does not perform the procedure correctly.
This indicates a hazarous situation could result in personal injury if the
user does not perform the porocedure correctly.
This indicates a hazarous situation could result in minor or moderatepersonal injury if the user does not perform the procedure correctly.
This alert signal also indicates that damages to the product or other
property, may occur if the user does not perform the procedure
correctly.
This indicates information that could help the user use the product more
efficiently.
In the text, the alert signal is centered, followed below by the indented message. A wider line space
precedes and follows the alert message to show where the alert message begins and ends. The
following is an example:
(Example)
IMPORTANT
HA (host adapter) consists of address decoder, driver, and receiver.
ATA is an abbreviation of "AT attachment". The disk drive is
conformed to the ATA-5 interface
The main alert messages in the text are also listed in the “Important Alert Items.”
ivC141-E099-01EN
LIABILITY EXCEPTION
"Disk drive defects" refers to defects that involve adjustment, repair, or replacement.
Fujitsu is not liable for any other disk drive defects, such as those caused by user misoperation or
mishandling, inappropriate operating environments, defects in the power supply or cable, problems of
the host system, or other causes outside the disk drive.
Overview and features are described in this chapter, and specifications and power requirement are
described.
The MPF3xxxAT series are a 3.5-inch hard disk drive with a built-in ATA controller. The disk drive is
compact and reliable.
1.1Features
1.1.1Functions and performance
(1)Compact
The disk has 1, 2, 3 or 4 disks of 95 mm (3.5 inches) diameter, and its height is 26.1 mm (1
inch).
(2)Large capacity
The disk drive can record up to 10.24 GB (formatted) on one disk using the 48/51 EPR4ML
recording method and 15 recording zone technology. The MPF3xxxAT series have a
formatted capacity of 10.24 GB to 20.49 GB respectively.
(3)High-speed Transfer rate
The disk drive has an internal data rate up to 37.7 MB/s. The disk drive supports an external
data rate up to 16.7 MB/s or 66.6 MB/s (ultra DMA mode 4).
C141-E099-01EN1 - 1
(4)Average positioning time
Use of a rotary voice coil motor in the head positioning mechanism greatly increases the
positioning speed. The average positioning time is 9.5 ms (at read).
1.1.2Adaptability
(1)Power save mode
The power save mode feature for idle operation, stand by and sleep modes makes the disk
drive ideal for applications where power consumption is a factor.
(2)Wide temperature range
The disk drive can be used over a wide temperature range (5°C to 55°C).
(3)Low noise and vibration
In Ready status, the noise of the disk drive is only about 3.5 bels (MPF3204AT, Typical
Sound Power per ISO7779 and ISO9296).
1.1.3Interface
(1)Connection to interface
With the built-in ATA interface controller, the disk drive can be connected to an ATA
interface of a personal computer.
(2)512-KB data buffer
The disk drive uses a 512-KB or 2-MB data buffer to transfer data between the host and the
disk media.
In combination with the read-ahead cache system described in item (3) and the write cache
described in item (6), the buffer contributes to efficient I/O processing.
(3)Read-ahead cache system
After the execution of a disk read command, the disk drive automatically reads the subsequent
data block and writes it to the data buffer (read ahead operation). This cache system enables
fast data access. The next disk read command would normally cause another disk access.
But, if the read ahead data corresponds to the data requested by the next read command, the
data in the buffer can be transferred instead.
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(4)Master/slave
The disk drive can be connected to ATA interface as daisy chain configuration. Drive 0 is a
master device, drive 1 is a slave device.
(5)Error correction and retry by ECC
If a recoverable error occurs, the disk drive itself attempts error recovery. The 42 bytes ECC
has improved buffer error correction for correctable data errors.
(6)Write cache
When the disk drive receives a write command, the disk drive posts the command completion
at completion of transferring data to the data buffer completion of writing to the disk media.
This feature reduces the access time at writing.
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1.2Device Specifications
1.2.1Specifications summary
Table 1.1 shows the specifications of the disk drive.
Table 1.1Specifications
MPF3102ATMPF3153ATMPF3204AT
Formatted Capacity (*1)10.24 GB15.37 GB20.49 GB
Number of Disks122
Number of Heads234
Number of Cylinders
(User + Alternate & SA)
Bytes per Sector512
Recording Method48/51 EPR4ML
Track Density20,800 TPI
Bit Density376,330 BPI
Rotational Speed5,400 rpm
Average Latency5.56 ms
Positioning time
• Minimum
• Average
• Maximum
Start/Stop time
• Start (0 rpm to Drive
Read)
• Stop (at Power Down)
InterfaceATA–4
Data Transfer Rate
• To/From Media
• To/From Host
Data buffer512 KB (option: 2,048 KB)
Physical Dimensions
(Height × Width × Depth)
Weight600 g
*1: Capacity under the LBA mode.
Under the CHS mode (normal BIOS specification), formatted capacity, number of cylinders, number of heads, and number of
sectors are as follows.
ModelFormatted CapacityNo. of CylinderNo. of HeadsNo. of Sectors
MPF3102AT10,248.11 MB16,3831663
MPF3153AT15,372.19 MB16,3831663
MPF3204AT20,496.23 MB16,3831663
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1.2.2Model and product number
Table 1.2 lists the model names and product numbers.
Maximum200 mV (peak to peak)100 mV (peak to peak)
FrequencyDC to 1 MHzDC to 1 MHz
Mounting
Screw
+12 V+5 V
Order No.Remarks
CA05423-B321
CA05423-B331
CA05423-B341
512 KB Data Buffer
512 KB Data Buffer
512 KB Data Buffer
(3)Current Requirements and Power Dissipation
Table 1.3 lists the current and power dissipation.
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Table 1.3Current and power dissipation
Mode of Operation
ModelMPF3102ATMPF3153/
Spin up1600
Idle (Ready) (*3)1751854004.14.2
R/W (On Track) (*4)2402505005.45.5
Seek (Random) (*5)
Seek/W/R
Standby771851.01.0
Sleep771851.01.0
*1 Current is typical rms except for spin up.
*2 Power requirements reflect nominal values for +12V and +5V power.
*3 Idle mode is in effect when the drive is not reading, writing, seeking, or executing any commands. A portion of the
R/W circuitry is powered down, the spindle motor is up to speed and the Drive ready condition exists.
*4 R/W mode is defined as 50% read operations and 50% write operations on a single physical track.
Typical RMS current (*1) [mA]
+12 V+5 V
MPF3204AT
1800 peak
3403505006.66.7
1600
1800 peak
All ModelsMPF3102ATMPF3153/
570
600 peak
Typical Power (*2) [watts]
MPF3204AT
22.122.1
*5 Seek/W/R mode is defined as 33% seek operations, 33% write operations and 33% read operations.
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(4)Current fluctuation (Typ.) when power is turned on
[A]
0.5
0.0
[A]
1.5
1.0
0.5
+5VDC
(0.5A/div)
0.0
Note:
Maximum current is 1.8 A.
Figure 1.1Current fluctuation (Typ.) when power is turned on
(5)Power on/off sequence
The voltage detector circuit monitors +5 V and +12 V. The circuit does not allow a write
signal if either voltage is abnormal. This prevents data from being destroyed and eliminates
the need to be concerned with the power on/off sequence.
+12VDC
(0.5A/div)
10
3254[seconds]6
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1.4Environmental Specifications
Table 1.4 lists the environmental specifications.
Table 1.4Environmental specifications
Temperature
• Operating
• Non-operating
• Thermal Gradient
Humidity
• Operating
• Non-operating
• Maximum Wet Bulb
Altitude (relative to sea level)
• Operating
• Non-operating
1.5Acoustic Noise
5°C to 55°C (ambient)
5°C to 60°C (disk enclosure surface)
–40°C to 60°C
20°C/hour or less
8% to 80%RH (Non-condensing)
5% to 85%RH (Non-condensing)
29°C
–60 to 3,000 m (–200 to 10,000 ft)
–60 to 12,000 m (–200 to 40,000 ft)
Table 1.5 lists the acoustic noise specification.
Table 1.5Acoustic noise specification
Sound Power
per ISO 7779 and
ISO9296
(Typical at 1m)
The mean time between failures (MTBF) is 500,000 POH (power on hours) or more
(operation: 24 hours/day, 7 days/week).
This does not include failures occurring during the first three months after installation.
MTBF is defined as follows:
MTBF=(H)
"Disk drive defects" refers to defects that involve repair, readjustment, or replacement. Disk
drive defects do not include failures caused by external factors, such as damage caused by
handling, inappropriate operating environments, defects in the power supply host system, or
interface cable.
(2)Mean time to repair (MTTR)
The mean time to repair (MTTR) is 30 minutes or less, if repaired by a specialist maintenance
staff member.
(3)CSS cycle
Total operation time in all fields
number of device failure in all fields
The number of CSS must be less than 40,000.
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(4)Service life
In situations where management and handling are correct, the disk drive requires no overhaul
for five years when the DE surface temperature is less than 48°C. When the DE surface
temperature exceeds 48°C, the disk drives requires no overhaul for five years or 20,000 hours
of operation, whichever occurs first. Refer to item (3) in Subsection 3.2 for the measurement
point of the DE surface temperature.
(5)Data assurance in the event of power failure
Except for the data block being written to, the data on the disk media is assured in the event of
any power supply abnormalities. This does not include power supply abnormalities during
disk media initialization (formatting) or processing of defects (alternative block assignment).
1.8Error Rate
Known defects, for which alternative blocks can be assigned, are not included in the error rate
count below. It is assumed that the data blocks to be accessed are evenly distributed on the
disk media.
(1)Unrecoverable read error
Read errors that cannot be recovered by read retries without user's retry and ECC corrections
shall occur no more than 10 times when reading data of 10
according to the disk drive's error recovery procedure, and include read retries accompanying
head offset operations.
(2)Positioning error
Positioning (seek) errors that can be recovered by one retry shall occur no more than 10 times
in 107 seek operations.
1.9Media Defects
Defective sectors are replaced with alternates when the disk is formatted prior to shipment
from the factory (low level format). Thus, the host sees a defect-free device.
Alternate sectors are automatically accessed by the disk drive. The user need not be concerned
with access to alternate sectors.
Chapter 6 describes the low level format at shipping.
15
bits. Read retries are executed
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CHAPTER 2 DEVICE CONFIGURATION
2.1Device Configuration
2.2System Configuration
2.1Device Configuration
Figure 2.1 shows the disk drive. The disk drive consists of a disk enclosure (DE), read/write
preamplifier, and controller PCA. The disk enclosure contains the disk media, heads, spindle
motors actuators, and a circulating air filter.
Figure 2.1Disk drive outerview
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(1)Disk
The outer diameter of the disk is 95 mm. The inner diameter is 25 mm. The number of disks
used varies with the model, as described below. The disks are rated at over 40,000 start/stop
operations.
MPF3102AT: 1 disk
MPF3153AT, MPF3204AT: 2 disks
(2)Head
The heads are of the contact start/stop (CSS) type. The head touches the disk surface while the
disk is not rotating and automatically lifts when the disk starts.
(3)Spindle motor
The disks are rotated by a direct drive Hall-less DC motor.
(4)Actuator
The actuator uses a revolving voice coil motor (VCM) structure which consumes low power
and generates very little heat. The head assembly at the tip of the actuator arm is controlled
and positioned by feedback of the servo information read by the read/write head. If the power
is not on or if the spindle motor is stopped, the head assembly stays in the specific CSS zone
on the disk and is fixed by a mechanical lock.
(5)Air circuilation system
The disk enclosure (DE) is sealed to prevent dust and dirt from entering. The disk enclosure
features a closed loop air circulation system that relies on the blower effect of the rotating
disk. This system continuously circulates the air through the recirculation filter to maintain
the cleanliness of the air in the disk enclosure.
(6)Read/write circuit
The read/write circuit uses a LSI chip for the read/write preamplifier. If inproves data
reliability by preventing errors caused by external noise.
(7)Controller circuit
The controller circuit consists of an LSI chip to improve reliability. The high-speed
microprocessor unit (MPU) achieves a high-performance AT contorller.
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2.2System Configuration
2.2.1ATA interface
Figures 2.2 and 2.3 show the ATA interface system configuration. The drive has a 40-pin PC
AT interface connector and supports the PIO transfer till 16.7 MB/s (PIO mode 4), the DMA
transfer till 16.7 MB/s (Multiword DMA mode 2), and the ultra DMA transfer till 66.6 MB/s
(Ultra DMA mode 4).
2.2.21 drive connection
HostDisk drive
AT bus
(Host interface)
2.2.32 drives connection
HostDisk drive #0
AT bus
(Host interface)
HA
(Host adaptor)
ATA interface
Figure 2.21 drive system configuration
HA
(Host adaptor)
Disk drive #1
ATA interface
Note:
When the drive that is not conformed to ATA is connected to the disk drive is above
configuration, the operation is not guaranteed.
Figure 2.32 drives configuration
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IMPORTANT
HA (host adaptor) consists of address decoder, driver, and receiver.
ATA is an abbreviation of "AT attachment". The disk drive is
conformed to the ATA-5 interface.
At high speed data transfer (PIO mode 3, mode 4, DMA mode 2 or
ultra DMA mode 4), occurrence of ringing or crosstalk of the signal
lines (AT bus) between the HA and the disk drive may be a great
cause of the obstruction of system reliability. Thus, it is necessary
that the capacitance of the signal lines including the HA and cable
does not exceed the ATA-3 and ATA-4 standard, and the cable
length between the HA and the disk drive should be as short as
possible.
C141-E099-01EN2 - 4
CHAPTER 3 INSTALLATION CONDITIONS
3.1Dimensions
3.2Mounting
3.3Cable Connections
3.4Jumper Settings
3.1Dimensions
Figure 3.1 illustrates the dimensions of the disk drive and positions of the mounting screw
holes. All dimensions are in mm.
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