Product Manual
Barracuda
ST3000DM001
ST2000DM001
ST1500DM003
ST1000DM003
ST750DM003
ST500DM002
ST320DM000
ST250DM000
®
Gen 14
100686584
Rev. D
January 2012
Document Revision History
Revision Date Description of Change
Rev. A 08/19/2011 Initial release.
Rev. B 09/01/2011 Updated decibel specifications, start/stop times; Table 3; mounting drawing.
Rev. C 10/20/2011 Updated voltage tolerance specifications.
Rev. D 01/17/2012 Corrected Table 1 (Altitude, operating) specification and Table 5 (Idle2).
© 2012 Seagate Technology LLC. All rights reserved.
Publication number: 100686584, Rev. D January 2012
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/
or other countries. Barracuda and SeaTools 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.
No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
Call 877-PUB-TEK1 (877-782-8351) to request permission.
One gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer's operating system may
use a different standard of measurement and report a lower capacity. In addition, some of the listed capacity is used for formatting and
other functions, and thus will not be available for data storage. Seagate reserves the right to change, without notice, product offerings or
specifications.
Contents
Seagate Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.1 About the SATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.0 Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9.6 Non-operating vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.10.1 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.12 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.13.2 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.14 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive . . . . . 23
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . 24
2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.0 Configuring and Mounting the Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.1 Handling and static-discharge precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3 SATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.0 SATA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.2 SATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Barracuda SATA Product Manual, Rev. D
Barracuda SATA Product Manual, Rev. D
Figures
Figure 1 Attaching SATA cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 2 Mounting dimensions (3-disk: 3TB, 2TB; 2-disk: 1.5TB models) . . . . . . . . . . . . . . . . . . . . . 26
Figure 3 Mounting dimensions (1-disk: 1TB and 750GB models). . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 4 Mounting dimensions (1-disk: 500GB, 320GB and 250GB models). . . . . . . . . . . . . . . . . . . 28
Barracuda SATA Product Manual, Rev. D
Barracuda SATA Product Manual, Rev. D
Seagate Technology Support Services
For information regarding online support and services, visit http://www.seagate.com/www/en-us/about/
contact_us/
Available services include:
• Presales & Technical support
• Global Support Services telephone numbers & business hours
• Authorized Service Centers
For information regarding Warranty Support, visit
http://www.seagate.com/www/en-us/support/warranty_&_returns_assistance
For information regarding data recovery services, visit http://www.i365.com
For Seagate OEM and Distribution partner portal, visit https://direct.seagate.com/portal/system
For Seagate reseller portal, visit http://spp.seagate.com
Barracuda SATA Product Manual, Rev. D 7
8 Barracuda SATA Product Manual, Rev. D
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following Seagate
Barracuda® model drives:
ST3000DM001 ST2000DM001 ST1500DM003 ST1000DM003
ST750DM003 ST500DM002 ST320DM000 ST250DM000
These drives provide the following key features:
• 7200 RPM spindle speed.
• High instantaneous (burst) data-transfer rates (up to 600MB per second).
• TGMR recording technology provides the drives with increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Native Command Queueing with command ordering to increase performance in demanding applications.
• Full-track multiple-sector transfer capability without local processor intervention.
• Seagate AcuTrac™ servo technology delivers dependable performance,even with hard drive track widths of
only 75 nanometers.
• Seagate OptiCache™ technology boosts overall performance by as much as 45% over the previous
generation.
• Seagate SmartAlign™ technology provides a simple, transparentmigration to Advanced Format 4K sectors
• Quiet operation.
• Compliant with RoHS requirements in China and Europe.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Supports latching SATA cables and connectors.
• Worldwide Name (WWN) capability uniquely identifies the drive.
1.1 About the SATA interface
The Serial ATA (SATA) 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 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, SATA makes the transition from parallel ATA easy by providing legacy software support. SATA was
designed to allow you to install a SATA host adapter and SATA disk drive in your current system and expect all of
your existing applications to work as normal.
The SATA interface connects each disk drive in a point-to-point configuration with the SATA host adapter. There is
no master/slave relationship with SATA devices like there is with parallel ATA. If two drives are attached on one
SATA 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.
The SATA 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.
Barracuda SATA Product Manual, Rev. D 9
Introduction www.seagate.com
The SATA host adapter contains a set of registers that shadow the contents of the traditional device registers,
referred to as the Shadow Register Block. All SATA devices behave like Device 0 devices. For additional
information about how SATA emulates parallel ATA, refer to the “Serial ATA International Organization: Serial ATA
Revision 3.0”. The specification can be downloaded from www.sata-io.org.
The host adapter may, optionally, emulate a master/slave environment to host software where two devices on
Note
separate SATA 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 SATA environment.
10 Barracuda SATA Product Manual, Rev. D
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 following
drive models:
ST3000DM001 ST2000DM001 ST1500DM003 ST1000DM003
ST750DM003 ST500DM002 ST320DM000 ST250DM000
2.1 Specification summary tables
The specifications listed in Table 1 and Table 2 are for quick reference. For details on specification measurement
or definition, refer to the appropriate section of this manual.
Table 1 Drive specifications summary for 3TB, 2TB, 1.5TB, 1TB and 750GB models
Drive Specification*
Formatted capacity (512
bytes/sector)**
Guaranteed sectors 5,860,533,168
Heads 6 4 2
Disks 3 2 1
Bytes per sector (4K physical
emulated at 512-byte sectors)
Default sectors per track 63 63 63
Default read/write heads 16 16 16
Default cylinders 16,383 16,383 16,383
Recording density (max) 1807kFCI 1807kFCI 1807kFCI
Track density (avg) 352ktracks/in 352ktracks/in 352ktracks/in
Areal density (avg) 625Gb/in
Spindle speed 7200 RPM 7200 RPM 7200 RPM
Internal data transfer rate
(max)
Average data rate, read/write
(MB/s)
Maximum sustained data rate,
OD read (MB/s)
I/O data-transfer rate (max) 600MB/s 600MB/s 600MB/s
Cache buffer 64MB 64MB 64MB
Height (max) 26.1mm / 1.028 in 26.1mm / 1.028 in 20.17mm / 0.7825 in
Width (max) 101.6mm /4.0 in (+ 0.010 in) 101.6mm /4.0 in (± 0.010 in) 101.6mm / 4.0 in ( ± 0.010 in)
Length (max) 146.99mm / 5.787 in 146.99mm / 5.787 in 146.99mm / 5.787 in
Weight (typical) 626g /1.38 lb 535g / 1.18 lb 400g / 0.88 lb
Average latency 4.16ms 4.16ms 4.16ms
Power-on to ready (max) <17.0s <17.0s <10.0s
Standby to ready (max) <17.0s <17.0s <10.0s
ST3000DM001
ST2000DM001
3000GB (3TB);
2000GB (2TB)
3,907,029,168
4096 4096 4096
2
2147Mb/s 2147Mb/s 2147Mb/s
156MB/s 156MB/s 156MB/s
210MB/s 210MB/s 210MB/s
ST1500DM003
1500GB (1.5TB)
2,930,277,168
625Gb/in
2
ST1000DM003
ST750DM003
1000GB (1TB);
750GB
1,953,525,168;
1,465,149,168
625Gb/in
2
Barracuda SATA Product Manual, Rev. D 11
Drive Specifications www.seagate.com
Table 1 Drive specifications summary for 3TB, 2TB, 1.5TB, 1TB and 750GB models (continued)
Drive Specification*
Average seek, read (typical)
Average seek, write (typical)
Startup current (typical) 12V 2.0A 2.0A 2.0A
Voltage tolerance (including
noise)
Ambient temperature 0° to 60°C (operating)
Temperature gradient 20°C per hour max (operating)
Relative humidity 5% to 95% (operating)
Relative humidity gradient
(max)
Wet bulb temperature (max) 37.7°C max (operating)
Altitude, operating –304.8m to 3048m
Altitude, non-operating
(below mean sea level, max)
Operational Shock (max) 80 Gs at 2ms 80 Gs at 2ms 80 Gs at 2ms
Non-Operational Shock (max) 300 Gs at 2ms 300 Gs at 2ms 350 Gs at 2ms
Vibration, operating 2Hz to 22Hz: 0.25 Gs, Limited
Vibration, non-operating 5Hz to 22Hz: 3.0 Gs
Drive acoustics, sound power
ST3000DM001
ST2000DM001
<8.5ms typical
<9.5ms typical
5V: ±5%
12V: +10% / -7.5%
–40° to 70°C (non-operating)
30°C per hour max
(non-operating)
5% to 95% (non-operating)
30% per hour 30% per hour 30% per hour
40.0°C max (non-operating)
(–1000 ft to 10,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
ST3000DM001 and
ST2000DM001
ST1500DM003
<8.5ms (read)
<9.5ms (write)
5V: ±5%
12V: +10% / -7.5%
0° to 60°C (operating)
–40° to 70°C (non-operating)
20°C per hour max (operating)
30°C per hour max
(non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
37.7°C (operating)
40.0°C (non-operating)
–304.8m to 3048m
(–1000 ft to 10,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
2Hz to 22Hz: 0.25 Gs, Limited
displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
ST1500DM003
ST1000DM003
ST750DM003
<8.5ms (read)
<9.5ms (write)
5V: ±5%
12V: +10% / -7.5%
0° to 60°C (operating)
–40° to 70°C (non-operating)
20°C per hour max (operating)
30°C per hour max
(non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
37.7°C max (operating)
40.0°C max (non-operating)
–304.8m to 3048m
(–1000 ft to 10,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
2Hz to 22Hz: 0.25 Gs, Limited
displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
ST1000DM003 and
ST750DM003
Idle***
Seek 2.6 bels (typical)
Non-recoverable read errors 1 per 10
Warranty To determine the warranty for a specific drive, use a web browser to access the following web page:
Load/Unload cycles (25°C,
50% rel. humidity)
Supports Hotplug operation
per the Serial ATA Revision 3.0
specification
*All specifications above are based on native configurations.
** One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary depending
on operating environment and formatting.
*** During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels.
2.4 bels (typical)
2.6 bels (max)
2.7 bels (max)
14
bits read 1 per 10
support.seagate.com/customer/warranty_validation.jsp
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.
300,000 300,000 300,000
Yes Yes Yes
2.4 bels (typical)
2.6 bels (max)
2.6 bels (typical)
2.7 bels (max)
14
bits read 1 per 10
2.2 bels (typical)
2.4 bels (max)
2.4 bels (typical)
2.5 bels (max)
14
bits read
12 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Drive Specifications
Table 2 Drive specifications summary for 500GB, 320GB and 250GB models
Drive Specification* ST500DM002 ST320DM000 ST250DM000
Formatted capacity** 500GB 320GB 250GB
Guaranteed sectors 976,773,168 625,142,448 488,397,168
Heads 2 2 1
Disks 1 1 1
Bytes per sector (4K physical
emulated at 512-byte sectors)
Default sectors per track 63 63 63
Default read/write heads 16 16 16
Default cylinders 16,383 16,383 16,383
Recording density (max) 1413kb/in 1413kb/in 1413kb/in
Track density (avg) 236ktracks/in 236ktracks/in 236ktracks/in
Areal density (avg) 329Gb/in
Spindle speed 7200 RPM 7200 RPM 7200 RPM
Internal data transfer rate
(max)
Average Data Rate, read/write
(MB/s)
Maximum sustained data
transfer rate, OD read (MB/s)
I/O data-transfer rate (max.) 600MB/s 600MB/s 600MB/s
Cache buffer 16MB 16MB 16MB
Height (max) 19.98mm / 0.787 in 19.98mm / 0.787 in 19.98mm / 0.787 in
Width (max) 101.6mm / 4.0 in (+ 0.010 in) 101.6mm / 4.0 in (+ 0.010 in) 101.6mm / 4.0 in ( + 0.010 in)
Length (max) 146.99mm / 5.787 in 146.99mm / 5.787 in 146.99mm / 5.787 in
Weight (typical) 415g / 0.915 lb 415g / 0.915 lb 415g / 0.915 lb
Average latency 4.16ms 4.16ms 4.16ms
Power-on to ready (max) <8.5s <8.5s <8.5s
Standby to ready (max) <8.5s <8.5s <8.5s
Average seek, read (typical) <8.5ms (read <8.5ms (read <8.5ms (read)
Average seek, write (typical) <9.5ms (write) <9.5ms (write) <9.5ms (write)
Startup current (typical) 12V 2.0A 2.0A 2.0A
Voltage tolerance (including
noise)
Ambient temperature
4096 4096 4096
2
1695Mb/s 1695Mb/s 1695Mb/s
125MB/s 125MB/s 125MB/s
144MB/s 144MB/s 144MB/s
5V: ±5%
12V: +10% / -7.5%
0° to 60°C (operating)
–40° to 70°C (non-operating)
329Gb/in
5V: ±5%
12V: +10% / -7.5%
0° to 60°C (operating)
–40° to 70°C (non-operating)
2
329Gb/in
5V: ±5%
12V: +10% / -7.5%
0° to 60°C (operating)
–40° to 70°C (non-operating)
2
Temperature gradient
Relative humidity
Relative humidity gradient
(max)
Wet bulb temperature (max)
Altitude, operating
Altitude, non-operating
(below mean sea level, max)
Operational Shock (max) 70 Gs at 2ms 70 Gs at 2ms 70 Gs at 2ms
20°C per hour max (operating)
30°C per hour max (nonoperating)
5% to 95% (operating)
5% to 95% (non-operating)
30% per hour 30% per hour 30% per hour
37.7°C (operating)
40.0°C (non-operating)
–304.8m to 3048m
(–1000 ft to 10,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
20°C per hour max (operating)
30°C per hour max
(non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
37.7°C (operating)
40.0°C (non-operating)
–304.8m to 3048m
(–1000 ft to 10,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
20°C per hour max (operating)
30°C per hour max (non-operating)
5% to 95% (operating)
5% to 95% (non-operating)
37.7°C (operating)
40.0°C (non-operating)
–304.8m to 3048m
(–1000 ft to 10,000+ ft)
–304.8m to 12,192m
(–1000 ft to 40,000+ ft)
Barracuda SATA Product Manual, Rev. D 13
Drive Specifications www.seagate.com
Table 2 Drive specifications summary for 500GB, 320GB and 250GB models (continued)
Drive Specification* ST500DM002 ST320DM000 ST250DM000
Non-Operational Shock (max) 350 Gs at 2ms 350 Gs at 2ms 350 Gs at 2ms
Vibration, operating
Vibration, non-operating
Drive acoustics, sound power
Idle***
Seek
Non-recoverable read errors 1 per 10
Warranty
Contact start-stop cycles
Supports Hotplug operation
per the Serial ATA Revision 3.0
specification
2.2 bels (typical)
2.3 bels (max)
2.3 bels (typical)
2.4 bels (max)
To determine the warranty for a specific drive, use a web browser to access the following web page:
support.seagate.com/customer/warranty_validation.jsp
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.
50,000 at 25°C, 50% rel.
humidity
Yes Yes Yes
14
bits read 1 per 10
2Hz to 22Hz: 0.25 Gs, Limited displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
2.2 bels (typical)
2.3 bels (max)
2.3 bels (typical)
2.4 bels (max)
14
bits read 1 per 10
50,000 at 25°C, 50% rel.
humidity
2.2 bels (typical)
2.3 bels (max)
2.3 bels (typical)
2.4 bels (max)
50,000 at 25°C, 50% rel.
humidity
14
bits read
* All specifications above are based on native configurations.
** One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary depending
on operating environment and formatting.
*** During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels.
2.2 Formatted capacity
Model
Formatted
capacity*
ST3000DM001 3000GB 5,860,533,168
ST2000DM001 2000GB 3,907,029,168
ST1500DM003 1500GB 2,930,277,168
ST1000DM003 1000GB 1,953,525,168
ST750DM003 750GB 1,465,149,168
ST500DM002 500GB 976,773,168
ST320DM000 320GB 625,142,448
ST250DM000 250GB 488,397,168
*One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary depending
on operating environment and formatting.
Guaranteed
sectors
Bytes per sector
4k
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 48-bit
addressing support of drives with capacities over 137GB.
14 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Drive Specifications
2.3 Default logical geometry
• Cylinders: 16,383
• Read/write heads: 16
• Sectors per track: 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.
2.4 Recording and interface technology
Interface SATA
Recording method TGMR
Recording density (kFCI)
3TB, 2TB, 1.5TB, 1TB and 750GB models 1807
500GB, 320GB and 250GB models 1413
Track density (ktracks/inch avg) 352
Areal density (Gb/in
2
)
3TB, 2TB, 1.5TB, 1TB and 750GB models 625
500GB, 320GB, 250GB models 329
Spindle speed (RPM) 7200 ± 0.2%
Internal data transfer rate (Mb/s max) 2147
Maximum sustained data transfer rate, OD read (MB/s)
3TB, 2TB, 1.5TB, 1TB and 750GB models 210
500GB, 320GB, 250GB models 144
Average data rate, read/write (MB/s)
3TB, 2TB, 1.5TB, 1TB and 750GB models 156
500GB, 320GB, 250GB models 125
I/O data-transfer rate (MB/s max) 600
Barracuda SATA Product Manual, Rev. D 15
Drive Specifications www.seagate.com
2.5 Physical characteristics
Maximum height
3TB, 2TB and 1.5TB 26.1mm / 1.028 in
1TB and 750GB 20.17mm / 0.7825 in
500GB, 320GB, 250GB 19.98mm / 0.787 in
Maximum width (all models) 101.6mm / 4.0 in ( ± 0.010 in)
Maximum length (all models) 146.99mm / 5.787 in
Typical weight
3TB and 2TB 626g / 1.38 lb
1.5TB 535g / 1.18 lb
1TB and 750GB 400g / 0.88 lb
500GB, 320GB, 250GB 415g / 0.92 lb
Cache buffer
3TB, 2TB, 1.5TB, 1TB, 750GB 64MB (64,768kb)
500GB, 320GB and 250GB 16MB (16,384kb)
2.6 Seek time
Seek measurements are taken with nominal power at 25°C ambient temperature. All times are measured 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 5000 measurements of seeks between
random tracks, less overhead.
Typical seek times (ms) Read Write
Track-to-track 1.0 1.2
Average 8.5 9.5
Average latency 4.16
These drives are designed to consistently meet the seek times represented in this manual. Physical seeks,
Note
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.
16 Barracuda SATA Product Manual, Rev. D
www.seagate.com
2.7 Start/stop times
Drive Specifications
3-disk
(3TB, 2TB models)
Power-on to ready
( in seconds)
Standby to ready
(in seconds)
Ready to spindle stop
(in seconds)
Time-to-ready may be longer than normal if the drive power is removed without going through normal OS
powerdown procedures.
15 (typical)
17 (max)
15 (typical)
17 (max)
10 (typical)
11 (max)
2-disk
(1.5TB model)
15 (typical)
17 (max)
15 (typical)
17 (max)
10 (typical)
11 (max)
1-disk
(1TB, 750GB
models)
10 (typical)
12 (max)
10 (typical)
12 (max)
10 (typical)
11 (max)
1-disk
(250GB, 320GB,
500GB models)
8.5 (typical)
10 (max)
8.5 (typical)
10 (max)
10 (typical)
11 (max)
2.8 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. Refer to Figure 1 on page 26.
2.8.1 Power consumption
Power requirements for the drives are listed in Table 3, Table 4, Table 5 and Table 6. Typical power measurements
are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C
ambient temperature.
• Spinup power
Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating
speed.
• Read/write power and current
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-ms delay,
then a 16-sector read followed by a 32-ms delay.
• Operating power and current
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10
reads) and 20 percent drive idle mode.
• 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 mode.
Table 3 DC power requirements (3-disk: 3TB and 2TB models)
Power dissipation (3-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle2* † 5.40 0.190 0.377
Operating 8.00 0.510 0.462
Standby 0.75 0.136 0.005
Sleep 0.75 0.136 0.005
Barracuda SATA Product Manual, Rev. D 17
Drive Specifications www.seagate.com
Table 4 DC power requirements (2-disk: 1.5TB model)
Power dissipation (2-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle2* † 4.50 0.196 0.296
Operating 6.70 0.525 0.340
Standby 0.75 0.136 0.005
Sleep 0.75 0.136 0.005
Table 5 DC power requirements (1-disk: 1TB and 750GB models)
Power dissipation (1-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle2* † 3.36 0.152 0.216
Operating 5.90 0.500 0.329
Standby 0.63 0.111 0.006
Sleep 0.63 0.111 0.006
Table 6 DC power requirements (1-disk: 500, 320 and 250GB models)
Power dissipation (1-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Perf Idle* † 4.60 0.378 0.224
Operating 6.19 0.656 0.243
Standby 0.79 0.350 0.010
Sleep 0.79 0.350 0.010
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels.
†5W IDLE with DIPLM Enabled
2.8.2 Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the
+12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.
• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave
injected noise at up to 10MHz.
• Using 5-volt power, the drive is expected to operate with a maximum of 100 mV peak-to-peak square-wave
injected noise at up to 10MHz.
Note
18 Barracuda SATA Product Manual, Rev. D
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.
www.seagate.com
Drive Specifications
2.8.3 Voltage tolerance
Voltage tolerance (including noise):
•5V
±5%
• 12V
+10% / -7.5%
2.8.4 Power-management modes
The drive provides programmable power management to provide greater energy efficiency. In most systems, you
can control power management through the system setup program. The drive features the following powermanagement modes:
Power modes Heads Spindle Buffer
Active Tracking Rotating Enabled
Idle Tracking Rotating Enabled
Standby Parked Stopped Enabled
Sleep Parked Stopped Disabled
• Active mode
The drive is in Active mode during the read/write and seek operations.
• Idle mode
The buffer remains enabled, and the drive accepts all commands and returns to Active mode any time disk
access is necessary.
• Standby mode
The drive enters Standby mode when the host sends a Standby Immediate command. If the host has set the
standby timer, the drive can also enter Standby mode automatically after the drive has been inactive for a
specifiable length of time. The standby timer delay is established using a Standby or Idle command. In
Standby mode, the drive buffer is enabled, the heads are parked and the spindle is at rest. The drive accepts
all commands and returns to Active mode any time disk access is necessary.
• Sleep mode
The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the drive buffer is
disabled, the heads are parked and the spindle is at rest. The drive leaves Sleep mode after it receives a Hard
Reset or Soft Reset from the host. After receiving a reset, the drive exits Sleep mode and enters Standby mode
with all current translation parameters intact.
• Idle and Standby timers
Each time the drive performs an Active function (read, write or seek), the standby timer is reinitialized and
begins counting down from its specified delay times to zero. If the standby timer reaches zero before any drive
activity is required, the drive makes a transition to Standby mode. In both Idle and Standby mode, the drive
accepts all commands and returns to Active mode when disk access is necessary.
Barracuda SATA Product Manual, Rev. D 19
Drive Specifications www.seagate.com
2.9 Environmental specifications
2.9.1 Ambient temperature
Ambient temperature is defined as the temperature of the environment immediately surrounding the drive. Actual
drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions. Refer to
3.4 on page 26 for base plate measurement location.
Operating 0° to 60°C (32° to 140°F)
Non-operating –40° to 70°C (–40° to 158°F)
Section
2.9.2 Temperature gradient
Operating 20°C per hour (68°F per hour max), without condensation
Non-operating 30°C per hour (86°F per hour max)
2.9.3 Humidity
2.9.3.1 Relative humidity
Operating 5% to 95% non-condensing (30% per hour max)
Nonoperating 5% to 95% non-condensing (30% per hour max)
2.9.3.2 Wet bulb temperature
Operating 37.7°C (99.9°F max)
Non-operating 40°C (104°F max)
2.9.4 Altitude
Operating –304.8m to 3048m (–1000 ft. to 10,000+ ft.)
Non-operating –304.8m to 12,192m (–1000 ft. to 40,000+ ft.)
2.9.5 Shock
All shock specifications assume that the drive is mounted securely with the input shock applied at the drive
mounting screws. Shock may be applied in the X, Y or Z axis.
2.9.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 80 Gs based on half-sine shock pulses of 2 ms during read operations. Shocks should not be
repeated more than two times per second.
2.9.5.2 Non-operating shock
3TB, 2TB and 1.5TB models
The non-operating shock level that the drive can experience without incurring physical damage or degradation in
performance when subsequently put into operation is 300 Gs based on a non-repetitive half-sine shock pulse of 2
ms duration.
20 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Drive Specifications
1TB, 750GB, 500GB, 320GB and 250GB models
The non-operating shock level that the drive can experience without incurring physical damage or degradation in
performance when subsequently put into operation is 350 Gs based on a non-repetitive half-sine shock pulse of
2-ms duration.
2.9.5.3 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified
in this document are specified below.
2Hz to 22Hz 0.25 Gs (Limited displacement)
22Hz to 350Hz 0.50 Gs
350Hz to 500Hz 0.25 Gs
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive
mounting screws. Vibration may be applied in the X, Y or Z axis. Throughput may vary if improperly mounted.
2.9.6 Non-operating vibration
The maximum non-operating vibration levels that the drive may experience without incurring physical damage or
degradation in performance when subsequently put into operation are specified below.
5Hz to 22Hz 3.0 Gs (Limited displacement)
22Hz to 350Hz 3.0 Gs
350Hz to 500Hz 3.0 Gs
2.10 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All
measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.
For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the
Note
Table 7 Fluid Dynamic Bearing (FDB) motor acoustics
(1TB, 750GB)
following equation:
(Number of seeks per second = 0.4 / (average latency + average access time
Idle* Seek
3 Disks
(3TB, 2TB)
2 Disks
(1.5TB)
1 Disk
2.4 bels (typical)
2.6 bels (max)
2.4 bels (typical)
2.6 bels (max)
2.2 bels (typical)
2.3 bels (max)
2.6 bels (typical)
2.7 bels (max)
2.6 bels (typical)
2.7 bels (max)
2.3 bels (typical)
2.4 bels (max)
1 Disk
(500GB, 320GB,
250GB)
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power
to operational levels.
Barracuda SATA Product Manual, Rev. D 21
2.2 bels (typical)
2.4 bels (max)
2.4 bels (typical)
2.5 bels (max)
Drive Specifications www.seagate.com
2.10.1 Test for Prominent Discrete Tones (PDTs)
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this
process is the use of the absolute threshold of hearing. Seagate uses this threshold curve (originated in ISO 389-
7) to discern tone audibility and to compensate for the inaudible components of sound prior to computation of
tone ratios according to Annex D of the ECMA-74 standards.
2.11 Electromagnetic immunity
When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in
Table 8 Radio frequency environments
Test Description
Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN61000-4-2: 95
Performance
level
Table 8.
Reference
standard
Radiated RF immunity 80MHz to 1,000MHz, 3 V/m,
80% AM with 1kHz sine
900MHz, 3 V/m, 50% pulse modulation @
200Hz
Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on external I/O B EN61000-4-4: 95
Surge immunity ± 1 kV differential, ± 2 kV common,
AC mains
Conducted RF immunity 150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz
sine
Voltage dips, interrupts 0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
A EN61000-4-3: 96
B EN61000-4-5: 95
A EN61000-4-6: 97
C
C
C
B
ENV50204: 95
EN61000-4-11: 94
2.12 Warranty
To determine the warranty for a specific drive, use a web browser to access the following web page:
support.seagate.com/customer/warranty_validation.jsp
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.
2.13 Agency certification
2.13.1 Safety certification
These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked
as to the certify agency.
2.13.2 Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the
Electromagnetic Compatibility Directive (2004/108/EC) as put into place 20 July 2007. Testing is performed to the
levels specified by the product standards for Information Technology Equipment (ITE). Emission levels are defined
by EN 55022, Class B and the immunity levels are defined by EN 55024.
Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the
directives when used in the test systems, we cannot guarantee that all systems will comply with the directives.
The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O cable (if
necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators should
confirm EMC compliance and provide CE marking for their products.
22 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Korean RRL
If these drives have the Korean Communications Commission (KCC) logo, they comply with paragraph 1 of Article
11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility (EMC)
Framework requirements of the Radio Research Laboratory (RRL) Communications Commission, Republic of
Korea.
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibility
(EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recognized
lab.
• Family name: Barracuda
• Certificate number: KCC-REM-STX-Barracuda
Australian C-Tick (N176)
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZ CISPR22
and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communication
Authority (ACA).
Drive Specifications
2.13.3 FCC verification
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached as
an external device). As such, each drive is considered to be a subassembly even when it is individually marketed
to the customer. As a subassembly, no Federal Communications Commission verification or certification of the
device is required.
Seagate has tested this device in enclosures as described above to ensure that the total assembly (enclosure,
disk drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device, pursuant
to Subpart J, Part 15 of the FCC rules. Operation with non-certified assemblies is likely to result in interference to
radio and television reception.
Radio and television interference. This equipment generates and uses radio frequency energy and if not
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio and
television reception.
This equipment is designed to provide reasonable protection against such interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause interference to radio or television, which can be determined by turning the equipment on and off, you are
encouraged to try one or more of the following corrective measures:
• Reorient the receiving antenna.
• Move the device to one side or the other of the radio or TV.
• Move the device farther away from the radio or TV.
• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.
If necessary, you should consult your dealer or an experienced radio/television technician for additional
suggestions. You may find helpful the following booklet prepared by the Federal Communications Commission:
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the
Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication
number 004-000-00345-4.
2.14 Environmental protection
Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemical substances.
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive
The European Union Restriction of Hazardous Substances (RoHS) Directive, restricts the presence of chemical
substances, including Lead, Cadmium, Mercury, Hexavalent Chromium, PBB and PBDE, in electronic products,
effective July 2006. This drive is manufactured with components and materials that comply with the RoHS
Directive.
Barracuda SATA Product Manual, Rev. D 23
Drive Specifications www.seagate.com
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive
This product has an Environmental Protection Use Period (EPUP) of 20 years. The following table
contains information mandated by China's "Marking Requirements for Control of Pollution Caused
by Electronic Information Products" Standard.
"O" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is lower
than the threshold defined by the China RoHS MCV Standard.
"X" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is over the
threshold defined by the China RoHS MCV Standard.
2.15 Corrosive environment
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to light
industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM B845.
However, this accelerated testing cannot duplicate every potential application environment. Users should use
caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as
electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel
and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate
contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be
exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an
ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulcanized rubber, that
can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment
may be extended by replacing materials near circuitry with sulfide-free alternatives.
24 Barracuda SATA Product Manual, Rev. D
3.0 Configuring and Mounting the Drive
This section contains the specifications and instructions for configuring and mounting the drive.
3.1 Handling and static-discharge precautions
After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic
discharge (ESD) hazards. Observe the following standard handling and static-discharge precautions:
Caution
• Before handling the drive, put on a grounded wrist strap, or ground yourself frequently by touching the metal
chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the entire
installation procedure.
• Handle the drive by its edges or frame only.
• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.
• Always rest the drive on a padded, antistatic surface until you mount it in the computer.
• Do not touch the connector pins or the printed circuit board.
• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids the
warranty. Some factory-installed labels contain information needed to service the drive. Other labels are used to
seal out dirt and contamination.
3.2 Configuring the drive
Each drive on the SATA interface connects point-to-point with the SATA host adapter. There is no master/slave
relationship because each drive is considered a master in a point-to-point relationship. If two drives are attached
on one SATA host adapter, the host operating system views the two devices as if they were both “masters” on two
separate ports. Both drives behave as if they are Device 0 (master) devices.
SATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive for
proper operation; however, if you connect the drive and receive a “drive not detected” error, your SATA-equipped
motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation.
3.3 SATA cables and connectors
The SATA interface cable consists of four conductors in two differential pairs, plus three ground connections. The
cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 9 for connector
pin definitions. Either end of the SATA signal cable can be attached to the drive or host.
For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive and
the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind
mateable.
For installations which require cables, you can connect the drive as illustrated in Figure 1.
Barracuda SATA Product Manual, Rev. D 25
Configuring and Mounting the Drive www.seagate.com
Figure 1 Attaching SATA cabling
Signal connector
Power connector
Signal cable
Power cable
Each cable is keyed to ensure correct orientation. Barracuda drives support latching SATA connectors.
3.4 Drive mounting
You can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the
bottom-mounting holes. Refer to Figure 2, Figure 3, and Figure 4 for drive mounting dimensions. Follow these
important mounting precautions when mounting the drive:
• Allow a minimum clearance of 0.030 inches (0.76mm) around the entire perimeter of the drive for cooling.
• Use only 6-32 UNC mounting screws.
• The screws should be inserted no more than 0.150 inch (3.81mm) into the bottom or side mounting holes.
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).
Figure 2 Mounting dimensions (3-disk: 3TB, 2TB; 2-disk: 1.5TB models)
Temperature
Check Point
26 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Figure 3 Mounting dimensions (1-disk: 1TB and 750GB models)
Configuring and Mounting the Drive
Temperature
Check Point
Barracuda SATA Product Manual, Rev. D 27
Configuring and Mounting the Drive www.seagate.com
Figure 4 Mounting dimensions (1-disk: 500GB, 320GB and 250GB models)
Recommended
case temperature
measurement location
28 Barracuda SATA Product Manual, Rev. D
4.0 SATA Interface
These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It supports
ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.
For detailed information about the SATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment”
specification.
4.1 Hot-Plug compatibility
Barracuda drives incorporate connectors which enable you to hot plug these drives in accordance with the SATA
Revision 3.0 specification. This specification can be downloaded from www.serialata.org.
4.2 SATA device plug connector pin definitions
Table 9 summarizes the signals on the SATA interface and power connectors.
Table 9 SATA connector pin definitions
Segment Pin Function Definition
S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 A-
S4 Ground 2nd mate
Signal
S5 B- Differential signal pair B from Phy
S6 B+
S7 Ground 2nd mate
Key and spacing separate signal and power segments
Barracuda SATA Product Manual, Rev. D 29
SATA Interface www.seagate.com
Table 9 SATA connector pin definitions (continued)
Segment Pin Function Definition
Power
P1 V
P2 V
P3 V
33
33
33
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate
P7 V
P8 V
P9 V
5
5
5
5V power, pre-charge, 2nd mate
5V power
5V power
P10 Ground 2nd mate
P11 Ground or LED signal If grounded, drive does not use deferred spin
P12 Ground 1st mate.
P13 V
P14 V
P15 V
12
12
12
12V power, pre-charge, 2nd mate
12V power
12V power
Notes
1. All pins are in a single row, with a 1.27 mm (0.050 in) pitch.
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:
• the ground pins P4 and P12.
• the pre-charge power pins and the other ground pins.
• the signal pins and the rest of the power pins.
3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when installed
in a blind-mate backplane configuration.
• All used voltage pins (Vx) must be terminated.
4.3 Supported ATA commands
The following table lists SATA standard commands that the drive supports.
For a detailed description of the ATA commands, refer to the Serial ATA International Organization:
Serial ATA Revision 3.0 (http://www.sata-io.org).
See “S.M.A.R.T. commands” on page 38 for details and subcommands used in the S.M.A.R.T. implementation.
Table 10 SATA standard commands
Command name Command code (in hex)
Check Power Mode E5
Device Configuration Freeze Lock B1H / C1
Device Configuration Identify B1H / C2
Device Configuration Restore B1H / C0
Device Configuration Set B1H / C3
Device Reset 08
H
H
H
H
H
H
30 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Table 10 SATA standard commands (continued)
Command name Command code (in hex)
SATA Interface
Download Microcode 92
Execute Device Diagnostics 90
Flush Cache E7
Flush Cache Extended EA
Format Track 50
Identify Device EC
Idle E3
Idle Immediate E1
Initialize Device Parameters 91
Read Buffer E4
Read DMA C8
Read DMA Extended 25
Read DMA Without Retries C9
Read Log Ext 2F
Read Multiple C4
Read Multiple Extended 29
Read Native Max Address F8
Read Native Max Address Extended 27
Read Sectors 20
Read Sectors Extended 24
Read Sectors Without Retries 21
Read Verify Sectors 40
Read Verify Sectors Extended 42
Read Verify Sectors Without Retries 41
Recalibrate 10
Security Disable Password F6
Security Erase Prepare F3
Security Erase Unit F4
Security Freeze F5
Security Set Password F1
Security Unlock F2
Seek 70
Set Features EF
Set Max Address F9
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Barracuda SATA Product Manual, Rev. D 31
SATA Interface www.seagate.com
Table 10 SATA standard commands (continued)
Command name Command code (in hex)
Note: Individual Set Max Address
commands are identified by the value
placed in the Set Max Features register
as defined to the right.
Address:
Password:
Lock:
Unlock:
Freeze Lock:
Set Max Address Extended 37
Set Multiple Mode C6
Sleep E6
H
H
H
S.M.A.R.T. Disable Operations B0H / D9
S.M.A.R.T. Enable/Disable Autosave B0H / D2
S.M.A.R.T. Enable Operations B0H / D8
S.M.A.R.T. Execute Offline B0H / D4
S.M.A.R.T. Read Attribute Thresholds B0H / D1
S.M.A.R.T. Read Data B0H / D0
S.M.A.R.T. Read Log Sector B0H / D5
S.M.A.R.T. Return Status B0H / DA
S.M.A.R.T. Save Attribute Values B0H / D3
S.M.A.R.T. Write Log Sector B0H / D6
Standby E2
Standby Immediate E0
Write Buffer E8
Write DMA CA
Write DMA Extended 35
Write DMA FUA Extended 3D
Write DMA Without Retries CB
Write Log Extended 3F
Write Multiple C5
Write Multiple Extended 39
Write Multiple FUA Extended CE
Write Sectors 30
Write Sectors Without Retries 31
Write Sectors Extended 34
Write Uncorrectable 45
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
00
H
01
H
02
H
03
H
04
H
H
H
H
H
H
H
H
H
H
H
32 Barracuda SATA Product Manual, Rev. D
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SATA Interface
4.3.1 Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following
power up. The data is organized as a single 512-byte block of data, whose contents are shown in on page 30. All
reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state
of the drive.
The following commands contain drive-specific features that may not be included in the SATA specification.
Table 11 Identify Device commands
Word Description Value
0 Configuration information:
0C5A
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1 Number of logical cylinders 16,383
2 ATA-reserved 0000
3 Number of logical heads 16
4 Retired 0000
5 Retired 0000
6 Number of logical sectors per logical track: 63 003F
7–9 Retired 0000
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000
21 Retired 0400
22 Obsolete 0000
23–26 Firmware revision
(8 ASCII character string, padded with blanks to end of
string)
x.xx
H
H
H
H
H
H
H
H
H
27–46 Drive model number:
(40 ASCII characters, padded with blanks to end of string)
47 (Bits 7–0) Maximum sectors per interrupt on Read multiple
and Write multiple (16)
48 Reserved 0000
49 Standard Standby timer, IORDY supported and may be
disabled
50 ATA-reserved 0000
51 PIO data-transfer cycle timing mode 0200
52 Retired 0200
53 Words 54–58, 64–70 and 88 are valid 0007
54 Number of current logical cylinders xxxx
55 Number of current logical heads xxxx
56 Number of current logical sectors per logical track xxxx
57–58 Current capacity in sectors xxxx
8010
2F00
H
H
H
H
H
H
H
H
H
H
H
Barracuda SATA Product Manual, Rev. D 33
SATA Interface www.seagate.com
Table 11 Identify Device commands (continued)
Word Description Value
59 Number of sectors transferred during a Read Multiple
xxxx
or Write Multiple command
60–61 Total number of user-addressable LBA sectors available
0FFFFFFFh*
(see Section 2.2 for related information)
*Note: The maximum value allowed in this field is:
0FFFFFFFh (268,435,455 sectors, 137GB). Drives with
capacities over 137GB will have 0FFFFFFFh in this field and
the actual number of user-addressable LBAs specified in
words 100-103. This is required for drives that support the
48-bit addressing feature.
62 Retired 0000
63 Multiword DMA active and modes supported
xx07
(see note following this table)
64 Advanced PIO modes supported (modes 3 and 4
0003
supported)
65 Minimum multiword DMA transfer cycle time per word (120
0078
nsec)
66 Recommended multiword DMA transfer cycle time per
0078
word
(120 nsec)
67 Minimum PIO cycle time without IORDY flow control (240
0078
nsec)
68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078
69–74 ATA-reserved 0000
75 Queue depth 001F
76 SATA capabilities xxxx
77 Reserved for future SATA definition xxxx
78 SATA features supported xxxx
79 SATA features enabled xxxx
80 Major version number 01F0
81 Minor version number 0028
82 Command sets supported 364B
83 Command sets supported 7F09
84 Command sets support extension
4163
(see note following this table)
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
85 Command sets enabled 30xx
86 Command sets enabled BE09
87 Command sets enable extension 4163
88 Ultra DMA support and current mode (see note following
this table)
89 Security erase time 0039
90 Enhanced security erase time 0039
xx7F
H
H
H
H
H
H
34 Barracuda SATA Product Manual, Rev. D
www.seagate.com
Table 11 Identify Device commands (continued)
Word Description Value
SATA Interface
92 Master password revision code FFFE
93 Hardware reset value xxxx
94 Automatic acoustic management 8080
95–99 ATA-reserved 0000
100–103 Total number of user-addressable LBA sectors available
(see Section 2.2 for related information). These words are
required for drives that support the 48-bit addressing
feature. Maximum value: 0000FFFFFFFFFFFFh.
ST3000DM001 = 5,860,533,168
ST2000DM001 = 3,907,029,168
ST1500DM003 = 2,930,277,168
ST1000DM003 = 1,953,525,168
ST750DM003= 1,465,149,168
ST500DM002 = 976,773,168
ST320DM000 = 625,142,448
ST250DM000 = 488,397,168
104–107 ATA-reserved 0000
108–111 The mandatory value of the world wide name (WWN) for the
Each drive will have a unique value.
drive. NOTE: This field is valid if word 84, bit 8 is set to 1
indicating 64-bit WWN support.
112–127 ATA-reserved 0000
128 Security status 0001
129–159 Seagate-reserved xxxx
160–254 ATA-reserved 0000
255 Integrity word xxA5
H
H
H
H
H
H
H
H
H
H
Note
Note
Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not
supported.
See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
Description (if bit is set to 1)
Bit Word 63
0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.
Bit Word 84
0 SMART error login is supported.
1 SMART self-test is supported.
Barracuda SATA Product Manual, Rev. D 35
SATA Interface www.seagate.com
2 Media serial number is supported.
3 Media Card Pass Through Command feature set is supported.
4 Streaming feature set is supported.
5 GPL feature set is supported.
6 WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported.
7 WRITE DMA QUEUED FUA EXT command is supported.
8 64-bit World Wide Name is supported.
9-10 Obsolete.
11-12 Reserved for TLC.
13 IDLE IMMEDIATE command with IUNLOAD feature is supported.
14 Shall be set to 1.
15 Shall be cleared to 0.
Bit Word 88
0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
5 Ultra DMA mode 5 is supported.
6 Ultra DMA mode 6 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.
14 Ultra DMA mode 6 is currently active.
36 Barracuda SATA Product Manual, Rev. D
www.seagate.com
SATA Interface
4.3.2 Set Features command
This command controls the implementation of various features that the drive supports. When the drive receives
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If
the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on
default has the read look-ahead and write caching features enabled. The acceptable values for the Features
register are defined as follows:
Table 12 Set Features command
02
03
10
55
82
90
AA
F1
Enable write cache (default).
H
Set transfer mode (based on value in Sector Count register).
H
Sector Count register values:
00
Set PIO mode to default (PIO mode 2).
H
01
Set PIO mode to default and disable IORDY (PIO mode 2).
H
08
PIO mode 0
H
09
PIO mode 1
H
0A
PIO mode 2
H
0B
PIO mode 3
H
0C
PIO mode 4 (default)
H
20
Multiword DMA mode 0
H
21
Multiword DMA mode 1
H
22
Multiword DMA mode 2
H
40
Ultra DMA mode 0
H
41
Ultra DMA mode 1
H
42
Ultra DMA mode 2
H
43
Ultra DMA mode 3
H
44
Ultra DMA mode 4
H
45
Ultra DMA mode 5
H
46
Ultra DMA mode 6
H
Enable use of SATA features
H
Disable read look-ahead (read cache) feature.
H
Disable write cache
H
Disable use of SATA features
H
Enable read look-ahead (read cache) feature (default).
H
Report full capacity available
H
Note
At power-on, or after a hardware or software reset, the default values of the features are as indicated
above.
Barracuda SATA Product Manual, Rev. D 37
SATA Interface www.seagate.com
4.3.3 S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for disk drives. When S.M.A.R.T. is enabled, the drive monitors
predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines that a
failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable. S.M.A.R.T.
predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T. commands and
implementation, see the Draft ATA-5 Standard.
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4H) that eliminates
unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.
This drive is shipped with S.M.A.R.T. features disabled. You must have a recent BIOS or software package that
supports S.M.A.R.T. to enable this feature. The table below shows the S.M.A.R.T. command codes that the drive
uses.
Table 13 S.M.A.R.T. commands
Code in features register S.M.A.R.T. command
D0
D2
D3
D4
D5
D6
D8
D9
DA
H
H
H
H
H
H
H
H
H
Note
S.M.A.R.T. Read Data
S.M.A.R.T. Enable/Disable Attribute Autosave
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Execute Off-line Immediate (runs DST)
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Write Log Sector
S.M.A.R.T. Enable Operations
S.M.A.R.T. Disable Operations
S.M.A.R.T. Return Status
If an appropriate code is not written to the Features Register, the command is aborted and 0x 04 (abort)
is written to the Error register.
38 Barracuda SATA Product Manual, Rev. D
Index
A
ACA 23
acceleration 21
acoustics 21
Active 19
Active mode 19
Agency certification 22
altitude 20
Ambient temperature 20
ambient temperature 16, 17
Annualized Failure Rate 22
areal density 15
ATA commands 30
Australia/New Zealand Standard AS/NZ CISPR22 23
Australian Communication Authority (ACA) 23
Australian C-Tick 23
Average latency 16
Average seek time 16
B
buffer 16
C
cables and connectors 25
cache 16
capacity 14
case temperature 20
CE mark 22
certification 22
Check Power Mode 30
China RoHS directive 24
compatibility 22
Conducted noise 18
Conducted RF immunity 22
Configuring the drive 25
connectors 25
Corrosive environment 24
CSA60950-1 22
D
data-transfer rates 9
DC power 17
Default logical geometry 15
density 15
Device Configuration Freeze Lock 30
Device Configuration Identify 30
Device Configuration Restore 30
Device Configuration Set 30
Device Reset 30
dimensions 26, 27
dissipation 17, 18
Download Microcode 31
E
Electrical fast transient 22
Electromagnetic compatibility 22
Electromagnetic Compatibility (EMC) 23
Electromagnetic Compatibility control Regulation 23
Electromagnetic Compatibility Directive (2004/108/EC)
22
Electromagnetic immunity 22
Electrostatic discharge 22
electrostatic discharge (ESD) 25
EN 55022, Class B 22
EN 55024 22
EN60950 22
enclosures 23
Environmental specifications 20
error-correction algorithms 9
ESD 25
EU 22
EU RoHS directive 23
European Union (EU) requirements 22
Execute Device Diagnostics 31
F
FCC verification 23
features 9
Flush Cache 31
Flush Cache Extended 31
Format Track 31
Formatted capacity 14
G
geometry 15
Gs 21
guaranteed sectors 14, 15
H
Handling precautions 25
height 16
humidity 20
I
I/O data-transfer rate 15
Identify Device 31
Identify Device command 33
Idle 19, 31
Idle Immediate 31
Idle mode 17, 19
Information Technology Equipment (ITE) 22
Initialize Device Parameters 31
Input noise ripple 18
input voltage 17
interface 15, 29
interference 23
internal data-transfer rate OD 15
is 16
ISO document 7779 21
ITE 22
K
KCC 23
Korean Communications Commission 23
Korean RRL 23
L
latency 16
LBA mode 14, 15
length 16
logical geometry 15
M
master/slave 10
mounting 26
Barracuda SATA Product Manual, Rev. D 39
mounting screws 20
mounting the drive 25
N
noise 18
nominal power 16
Nonoperating shock 20
Nonoperating vibration 21
O
operating 17, 18
Operating power 17
Operating shock 20
Operating vibration 21
P
Physical characteristics 16
point-to-point 9, 25
Power consumption 17
power dissipation 17, 18
Power modes 19
Power specifications 17
Power-management modes 19
Power-on to Ready 17
precautions 25
printed circuit board 25
programmable power management 19
prominent discrete tone 22
Q
quick reference 11
R
Radiated RF immunity 22
radio and television interference 23
radio frequency (RF) 22
random seeks 17
Read Buffer 31
Read DMA 31
Read DMA Extended 31
Read DMA without Retries 31
Read Log Ext 31
Read Multiple 31
Read Multiple Extended 31
Read Native Max Address 31
Read Native Max Address Extended 31
Read Sectors 31
Read Sectors Extended 31
Read Sectors Without Retries 31
Read Verify Sectors 31
Read Verify Sectors Extended 31
Read Verify Sectors Without Retries 31
Read/write power 17
Recalibrate 31
recording density 15
recording method 15
Recording technology 15
relative humidity 20
Reliability 22
RF 22
RMS read/write current 18
RoHS 23, 24
RRL 23
S
S.M.A.R.T. Disable Operations 32
S.M.A.R.T. Enable Operations 32
S.M.A.R.T. Enable/Disable Autosave 32
S.M.A.R.T. Execute Offline 32
S.M.A.R.T. implementation 30
S.M.A.R.T. Read Attribute Thresholds 32
S.M.A.R.T. Read Data 32
S.M.A.R.T. Read Log Sector 32
S.M.A.R.T. Return Status 32
S.M.A.R.T. Save Attribute Values 32
S.M.A.R.T. Write Log sector 32
Safety certification 22
screws 20
sectors 14
Security Disable Password 31
Security Erase Prepare 31
Security Erase Unit 31
Security Freeze 31
Security Set Password 31
Security Unlock 31
See “S.M.A.R.T. commands” on page 34 30
Seek 31
Seek time 16
Serial ATA (SATA) interface 29
serial ATA ports 10
servo electronics 17
Set Features 31
Set Max Address 31
Set Max Address Extended 32
Set Multiple Mode 32
Shock 20
single-track seeks 16
Sleep 17, 18, 19, 32
Sleep mode 19
sound 21
Specification summary table 11
spindle speed 15
Spinup 17, 18
Spinup power 17
Standby 17, 18, 19, 32
Standby Immediate 32
Standby mode 17, 19
standby timer 19
Standby to Ready 17
Start/stop times 17
static-discharge 25
subassembly 23
Surge immunity 22
T
temperature 16, 20
temperature gradient 20
timer 19
timers 19
track density 15
Track-to-track 16
40 Barracuda SATA Product Manual, Rev. D
Track-to-track seek time 16
U
UL60950-1 22
V
voltage 17
Voltage dips, interrupts 22
Voltage tolerance 19
W
weight 16
wet bulb temperature 20
width 16
Write Buffer 32
Write DMA 32
Write DMA Extended 32
Write DMA FUA Extended 32
Write DMA Without Retries 32
Write Log Extended 32
Write Multiple 32
Write Multiple Extended 32
Write Multiple FUA Extended 32
Write Sectors 32
Write Sectors Extended 32
Write Sectors Without Retries 32
Barracuda SATA Product Manual, Rev. D 41
Seagate Technology LLC
AMERICAS Seagate Technology LLC 10200 South De Anza Boulevard, Cupertino, California 95014, United States, 408-658-1000
ASIA/PACIFIC Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 16-18 rue du Dôme, 92100 Boulogne-Billancourt, France, 33 1-4186 10 00
Publication Number: 100686584, Rev. D
January 2012
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