Seagate MOMENTUS 7200.3 SATA product manual
Product Manual
Momentus 7200.3 SATA
ST9320421AS
ST9250421AS
ST9200421AS
ST9160411AS
ST9120411AS
ST980411AS
100512541
Rev . A
May 2008
Copyright © 2008 Seagate Technology LLC. All rights reserved. Printed in U.S.A.
Publication number: 100512541, Rev. A, May 2008
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC
in the United States and/or other countries. Momentus, SeaTools and SeaTDD are either trademarks or
registered trademarks of Seagate Technology LLC or one of its affiliated companies in the United States
and/or other countries. All other trademarks or registered trademarks are the property of their respective
owners.
One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity
may vary depending on operating environment and formatting. Quantitative usage examples for various
applications are for illustrative purposes. Actual quantities will vary based on various factors, including file
size, file format, features and application software. Seagate reserves the right to change, without notice,
product offerings or specifications.
Momentus 7200.3 SATA Product Manual, Rev. A
i
Contents
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Physical organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.6 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.7 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.8 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.9 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.9.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.9.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.10 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.10.3 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.4 Wet bulb temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.5 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.6 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.10.7 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.11 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.12 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.13 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.14.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.15 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.15.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 15
2.15.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . 15
2.16 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
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Momentus 7200.3 SATA Product Manual, Rev. A
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List of Figures
Figure 1. Typical +5V only startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 2. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 3. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 4. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Momentus 7200.3 SATA Product Manual, Rev. A
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1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Momentus® 7200.3 SATA model drives:
• ST9320421AS
• ST9250421AS
• ST9200421AS
• ST9160411AS
• ST9120411AS
• ST980411AS
These drives provide the following key features:
• 7,200-RPM spindle speed.
• 16-Mbyte buffer.
• Quiet operation. Fluid Dynamic Bearing (FDB) motor.
• High instantaneous (burst) data-transfer rates (up to 3.0 Gbits per second).
• Perpendicular recording technology.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Native Command Queuing (NCQ) with command ordering.
• Full-track multiple-sector transfer capability without local processor intervention.
• 1,000 Gs nonoperating shock and 350 Gs of operating shock.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• The 3D Defense System™, w hich in clu des Drive Defense , D at a Defen se and D iagnost ic Defense, offers the
industry’s most comprehensive protection for disc drives.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Support for Read Multiple and Write Multiple commands.
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Momentus 7200.3 SATA Product Manual, Rev. A
1.1 About the Serial ATA interface
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary
advantages include:
• Easy installation and configuration with true plug-and-play connectivity. It is not normally necessary to set
any jumpers or other configuration options.
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.
• Scalability to higher performance levels.
In addition, Serial ATA makes the transiti o n from pa rallel ATA easy by providi ng legacy sof twar e suppo rt. S erial
ATA was designed to allow you to install a Serial ATA host adapter and Serial ATA disc drive in your current
system and expect all of your existing applications to work as normal.
The Serial ATA interface connects each disc drive in a point-to-point configuration with the Serial ATA host
adapter. There is no master/slave relationship with Serial ATA devices like there is with parallel ATA. If two
drives are attached on one Serial ATA host adapter, the host operating system views the two devices as if they
were both “masters” on two separate ports. This essentially means both drives behave as if they are Device 0
(master) devices.
Note. The host adapter may, optionally, emulate a master/slave environment to host software where two
devices on separate Serial ATA ports are represented to host software as a Device 0 (master) and
Device 1 (slave) accessed at the same set of host bus addresses. A host adapter that emulates a
master/slave environment manages two sets of shadow registers. This is not a typical Serial ATA
environment.
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide
backward compatibility with existing host systems and software. The Command and Control Block registers,
PIO and DMA data transfers, resets, and interrupts are all emulated.
The Serial ATA host adapter cont ai ns a set of registe rs that sha dow the conte nt s of the trad iti onal device r egisters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized
AT Attachment” specification. The specification can be downloaded from http://www.serialata.org.
Momentus 7200.3 SATA Product Manual, Rev. A
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2.0 Drive specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the
ST9320421AS, ST9250421AS, ST9200421AS, ST9160411AS, ST9120411AS, and ST980411AS models.
2.1 Specification summary table
The specifications listed in this table are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.
T a ble 1: Drive speci ficat ion s
Drive specification ST9320421AS ST9250421AS ST9200421AS ST9160411AS ST9120411AS ST980411AS
Formatted Gbytes
(512 bytes/sector)*
Guaranteed sector s 625,142,448 488,397,168 390,721,968 312,581,808 234,441,648 156,301,488
Bytes per sector 512
Physical read/write heads 433221
Discs 222111
Cache (Mbytes) 16
Recording density in BPI
(bits/inch max)
Track density TPI (tracks/inch max) 190k
Areal density (Gbits/inch2 max) 253
Spindle speed (RPM) 7,200
Average latency (msec) 4.17
Internal transfer rate
(Gbits/sec max)
I/O data transfer rate
(Gbits/sec max)
ATA data-transfer modes supported SATA 1.0, Serial AT A Revision 2.6
Height (max) 9.5 +/- 0.2 mm (0.374 +/- .0078 inches)
Width (max) 69.85 mm (2.75 +/- 0.0098 inches)
Length (max) 100.5 +/- 0.25 mm (3.957 +/- 0.010 inches)
Weight (max) 110 grams (0.238 lb) 105 grams (0.227 lb)
Power-on to ready (sec typical) 4.0
Standby to ready (sec typical) 3.0
Track-to-track seek time, read
(msec typical)
320 250 200 160 120 80
1,334k
1.1
3.0
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
1.0
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Momentus 7200.3 SATA Product Manual, Rev. A
T a ble 1: Drive speci ficat ion s
Drive specification ST9320421AS ST9250421AS ST9200421AS ST9160411AS ST9120411AS ST980411AS
Average seek, read (msec typical) 11.0
Average seek, write (msec typical) 13.0
Startup current, +5V (max) 1.0 amps
Seek power (typical) 2.3 watts
Read/write power (typical) 2.1 watts
Idle mode, low power (typical) 0.75 watts
Standby mode 0.21 watts (typical)***
Sleep mode 0.21 watts (typical)***
Voltage tolerance (including noise) +5V ± 5%
Ambient temperature 0°C to 60°C (operating), –40°C to 70°C (nonoperating)
Temperature gradient
(°C per hour max)
Relative humidity 5% to 90% (operating)
Relative humidity gradient 30% per hour max
Wet bulb temperature
(°C max)
Altitude, operating –304.8 m to 3,048 m (–1,000 ft to 10,000+ ft)
Altitude, nonoperating
(meters below mean sea level,
max)
Shock, operating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 2 msec)
Shock, nonoperating
(Gs max at 1 msec)
Shock, nonoperating
(Gs max at 0.5 msec)
Vibration, operating 1.0 G (0 to peak, 5–500 Hz)
Vibration, nonoperating 5 Gs (0 to peak, 10–500 Hz)
Drive acoustics, sound power
(bels)
Idle** 2.3 (typical)
Performance seek 2.6 (typical)
Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.48%
Load/Unload (U/UL) cycles
25°C, 50% relative humidity
32°C, 80% relative humidity
5°C, 80% relative humidity
5°C, 10% relative humidity
55°C, 16% relative humidity
20°C (operating)
35°C (nonoperating)
5% to 95% (nonoperating)
30 (operating)
40 (nonoperating)
–304.8 m to 12,192 m (–1000 ft to 40,000+ ft)
350
800
1,000
600
2.5 (max)
2.7 (max)
14
bits read
600,000 software-controlled power on/off cycles
50,000 hard power on/off cycles
600,000 software-controlled power on/off cycles
50,000 hard power on/off cycles
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T a ble 1: Drive speci ficat ion s
Drive specification ST9320421AS ST9250421AS ST9200421AS ST9160411AS ST9120411AS ST980411AS
Warranty 5 years on distribution units.
Supports Hotplug operation per
Serial AT A Revision 2.6 specification
*One Gbyte equal s one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment
and formatting.
**During period s of driv e idle, some offline activity may occur acc or ding to th e S. M.A .R.T. s pe cifica ti on, whic h ma y in crease acoustic and
power to operational levels.
***Typical notebooks will pull power to th e drive when ente ring S3 and S4; while in the S3 and S4 states, dr ive sleep and drive standby
modes will not contribute to battery power consumption.
To determine the warranty for a specific drive, use a web browser to access the following web
page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to provide the drive
serial number, model number (or part number) and country of purchase. The system will display
the warranty information for your drive.
Yes (requires COMPRESET from host after a hotplug event)
2.2 Formatted ca pacity
Model Formatted capacity* Guaranteed sectors Bytes per sector
ST9320421AS 320 Gbytes 625,142,448 512
ST9250421AS 250 Gbytes 488,397,168 512
ST9200421AS 200 Gbytes 390,721,968 512
ST9160411AS 160 Gbytes 312,581,808 512
ST9120411AS 120 Gbytes 234,441,648 512
ST980411AS 80 Gbytes 156,301,488 512
*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity ma y vary depending on operating env ironm ent
and formatting.
2.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes.
2.3 Default logi cal geometr y
Cylinders Read/write heads Sectors per track
16,383 16 63
LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,
where n is the number of guaranteed sectors as defined above.
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Momentus 7200.3 SATA Product Manual, Rev. A
2.4 Physical organization
Drive model Read/write heads Number of discs
ST9320421AS 4 2
ST9250421AS 3 2
ST9200421AS 3 2
ST9160411AS 2 1
ST9120411AS 2 1
ST980411AS 1 1
2.5 Recording and interface tech nology
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density BPI (bits/inch max) 1,334k
Track density TPI (tracks/inch max) 190k
Areal density (Gbits/inch2 max) 253
Spindle speed (RPM) (± 0.2%) 7,200
Maximu m Internal tr a n sfer rate (Gb i ts/sec) 1.1
I/O data-transfer rate (Gbits/sec max) 3.0
Interleave 1:1
Cache buffer 16 Mbytes (16,384 kbytes)
2.6 Physical characteristics
Drive specification
Height (mm)
(inches)
Width (mm)
(inches)
Length (mm)
(inches)
Typical weight
ST9320421AS
ST9250421AS
ST9200421AS
ST9160411AS
ST9120411AS
ST980411AS
9.5 +/-0.2
0.374 +/-0.0078
69.85 +/-0.25
2.75 +/-0.0098
100.50 +/-0.25
3.957 +/-0.010
110 grams
0.238 pounds
105 grams
0.227 pounds
Momentus 7200.3 SATA Product Manual, Rev. A
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2.7 Seek time
Seek measurem ent s a re t ake n wi th nom inal po w er a t 25 °C amb ient temperature. All tim es a re m easu red using
drive diagnostics. The specifications in the table below are defined as follows:
• Track-to-track seek time is an average of all possible single-track seeks in both directions.
• Average seek time is a true statistical random average of at least 5,000 measurements of seeks between
random tracks, less overhead.
Table 2: Typical seek times
T yp ical seek times (msec) Read
Track-to-track 1.0
Average 11.0
Full-stroke 22.0
Average latency 4.17
Note. These drives ar e de si gned to consisten tl y me et t he se ek t imes r epr esente d in thi s manu al. P hysical
seeks, regardless of mode (such as track-to-track and average), are expected to meet the noted
values. However, due to the manner in which these drives are formatted, benchmark tests that
include command overhead or measure logical seeks may produce results that vary from these
specifications.
2.8 Start/stop times
Time to ready Typical
Power-on to Ready (sec) 4.0 8.0
St andby to Ready (sec) 3.0 8.0
Max @ 25°C
2.9 Power specifications
The drive receives DC power (+5V) through a native SATA power connector.
2.9.1 Power consumption
Power requiremen ts for the dr iv es are listed i n the ta ble on p age 7. Typical power measurements are based on
an average of drives tested, under nominal conditions, at 25°C ambient temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle re aches operating speed.
• Seek mode
During seek mod e, the read /write actuator arm move s toward a spe cific positi on on the d isc surface and does
not execute a read or write operati on. Servo ele ctronics ar e acti ve. Seek mode power is mea sure d based on
three random seek operations every 100 msecs. This mode is not typical.
• Read/write power and current
Read/write power is measured with the heads on track, based on three 63 sector read or write operations
every 100 msecs.
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Momentus 7200.3 SATA Product Manual, Rev. A
• Idle mode power
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in
a random track location.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down model
T a ble 3: DC power
Power di s s ipation +5V input average (25° C)
Spinup (max) 1.0 amp s
Seek 2.3 watts
Read 2.1 watts
Write 2.1 watts
Idle, performance* 1.4 wat t s
Idle, active* 1.0 watts
Idle, low power mode* 0.75 watt s
Standby 0.21 watts
Sleep 0.21 watts
*During periods of drive i dle, some offl ine activity may occur acc ording to the S. M.A.R.T. speci fica tion, which may i ncrease acoust ic and
power to operational levels.
2.9.1.1 Typical current profile
Figure 1. Typical +5V only startup and operation current profile
2.9.2 Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 15-ohm resistive load on
the +5 volt line.
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