Seagate BARRACUDA 7200.12 User Manual

Product Manual

Barracuda 7200.12 Serial ATA

ST31000528AS
ST3750528AS
ST3500418AS
ST3500410AS

ST3320418AS
ST3250318AS
ST3160318AS

100529369
Rev. D
September 2009

Revision history

Revision Date Sheets affected or comments

Rev A 08/15/08 Initial release.
Rev. B 02/12/09 fc, 1, 3-19, 22-25, 29-30 and 37.
Rev. C 04/03/09 11.

Rev. D 09/01/09

28.(add command ‘write uncorrectable - 45h’); 30 .(words 75 & 81 code
edits)

Copyright © 2008-2009 Seagate Technology LLC. All rights reserved. Printed in U.S.A.
Publication number: 100529369, Rev. D , September 2009
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC

in the United States and/or other countries. Barracuda, 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 othe r trademarks or register ed trademarks are the p roperty of their respectiv e
owners.

When referring to hard drive capacity, 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 measure
ment and report a lower capacity. In addition, some of the listed capacity is used for formatti ng 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

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.1.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.2 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.7.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.7.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.7.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.8 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.8.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.8.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.9 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.9.1 Test for Prominent Discrete Tones (PDTs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.10 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 18

2.12 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.12.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.12.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.13 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.13.1 European Union Restriction of Hazardous Substances (RoHS) Directive. . . . . 20

2.13.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . 20

2.14 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Barracuda 7200.12 Serial ATA Product Manual, Rev. D i

ii Barracuda 7200.12 Serial ATA Product Manual, Rev. D

List of Figures

Figure 1. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 2. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 3. Mounting dimensions (1000 and 750 GB models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 4. Mounting dimensions (500, 320, 250 and 160 GB models) . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Barracuda 7200.12 Serial ATA Product Manual, Rev. D iii

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate
Barracuda

ST31000528AS ST3500418AS ST3320418AS ST3160318AS
ST3750528AS ST3500410AS ST3250318AS

These drives provide the following key features:

• 7,200 RPM spindle speed.

• High instantaneous (burst) data-transfer rates (up to 300 Mbytes per second).

• Perpendicular 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.

• 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.

®

7200.12 Serial ATA model drives:

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 1

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 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 transition from parallel ATA easy by providing legacy software support. Serial
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 contains a set of registers that shadow the content s of the traditio nal device regi s­ters, 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 International
Organization: Serial ATA Revision 2.6”. The specification can be downloaded from www.sata-io.org.

2 Barracuda 7200.12 Serial ATA Product Manua l, 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:

ST31000528AS ST3500418AS ST3320418AS ST3160318AS
ST3750528AS ST3500410AS ST3250318AS

Specification summary tables
The specifications listed in the following tables are for quick reference. For details on specification measure-

ment or definition, see the appropriate section of this manual.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 3

Table 1: Drive specifications summary for 1000 and 750 Gbyte models

Drive specification ST31000528AS ST3750528AS
Formatted capacity (512 bytes/sector)* 1000 Gbytes 750 Gbytes
Guaranteed sectors 1,953,525,168 1,465,149,168
Heads 4 3
Discs 2
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 1413 kbits/in max
Track density 236 ktracks/in avg
Areal density 329 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 1695 Mbits/sec max
Sustained data transfer rate OD 125 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 32 Mbytes
Height (max) 26.1 mm (1.028 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 622 grams (1.371 lb.)
Average latency 4.16 msec
Power-on to ready <10.0 sec max
Standby to ready <10.0 sec max
Track-to-track seek time <1.0 msec typical read;

Average seek, read <8.5 msec typical
Average seek, write <9.5 msec typical
Startup current (typical) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V +10% / -7.5%

Ambient temperature 0° to 60°C (operating)

Temperature gradient 20°C per hour max (operating)

Relative humidity 5% to 95% (operating)

Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max (operating)

Altitude, operating –304.8 m to 3,048 m

Altitude, nonoperating
(below mean sea level, max)

Operational Shock 70 Gs max at 2 msec
Non-Operational Shock 300 Gs max at 2 msec

Multiword DMA modes 0–2
Ultra DMA modes 0–6

<1.2 msec typical write

12V +10% / -7.5%

–40° to 70°C (nonoperating)

30°C per hour max (nonoperating)

5% to 95% (nonoperating)

40.0°C max (nonoperating)

(–1000 ft. to 10,000+ ft.)
–304.8 m to 12,192 m

(–1000 ft. to 40,000+ ft.)

4 Barracuda 7200.12 Serial ATA Product Manua l, Rev. D

Drive specification ST31000528AS ST3750528AS
Vibration, operating 2–22 Hz: 0.25 Gs, Limited displacement

Vibration, nonoperating 5–22 Hz: 2.0 Gs

Drive acoustics, sound power
Idle** 2.6 bels (typical)

Seek 2.8 bels (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.32%
Warranty To determine the warranty for a specific drive, use a web browser to access the following

Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the

Serial ATA Revision 2.5 specification

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline a ctivity may occur according to the S.M.A.R.T. specification, which may incr ease acoustic and

power to operational levels.

22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs

22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs

2.7 bels (max)

3.0 bels (max)

14

bits read

web page:
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

support.seagate.com/customer/warranty_validation.jsp

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 5

Table 2: Drive specifications summary for 500 Gbyte models

Drive specification ST3500418AS and ST3500410AS ST3320418AS
Formatted capacity (512 bytes/sector)* 500 Gbytes 320 Gbytes
Guaranteed sectors 976.773,168 625,142,448
Heads 2
Discs 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 1413 kbits/in max
Track density 236 ktracks/in avg
Areal density 329 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 1695 Mbits/sec max
Sustained data transfer rate OD 125 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 16 Mbytes
Height (max) 19.98 mm (0.787 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 415 grams (0.915 lb.)
Average latency 4.16 msec
Power-on to ready <8.5 sec max
Standby to ready <8.5 sec max
Track-to-track seek time <1.0 msec typical read;

Average seek, read <8.5 msec typical
Average seek, write <9.5 msec typical
Startup current (typical) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V +10% / -7.5%

Ambient temperature 0° to 60°C (operating)

Temperature gradient 20°C per hour max (operating)

Relative humidity 5% to 95% (operating)

Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max (operating)

Altitude, operating –304.8 m to 3,048 m

Altitude, nonoperating
(below mean sea level, max)

Operational Shock 70 Gs max at 2 msec
Non-Operational Shock 350 Gs max at 2 msec

Multiword DMA modes 0–2
Ultra DMA modes 0–6

<1.2 msec typical write

12V +10% / -7.5%

–40° to 70°C (nonoperating)

30°C per hour max (nonoperating)

5% to 95% (nonoperating)

40.0°C max (nonoperating)

(–1000 ft. to 10,000+ ft.)
–304.8 m to 12,192 m

(–1000 ft. to 40,000+ ft.)

6 Barracuda 7200.12 Serial ATA Product Manua l, Rev. D

Drive specification ST3500418AS and ST3500410AS ST3320418AS
Vibration, operating 2–22 Hz: 0.25 Gs, Limited displacement

Vibration, nonoperating 5–22 Hz: 2.0 Gs

Drive acoustics, sound power
Idle** 2.6 bels (typical)

Seek 2.8 bels (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.32%
Warranty To determine the warranty for a specific drive, use a web browser to access the following

Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the

Serial ATA Revision 2.5 specification

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline a ctivity may occur according to the S.M.A.R.T. specification, which may incr ease acoustic and

power to operational levels.

22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs

22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs

2.7 bels (max)

3.0 bels (max)

14

bits read

web page:
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 sys
tem will display the warranty information for your drive.

Yes

support.seagate.com/customer/warranty_validation.jsp

-

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 7

Table 3: Drive specifications summary for 250 Gbyte models

Drive specification ST3250318AS ST3160318AS
Formatted capacity (512 bytes/sector)* 250 Gbytes 160 Gbytes
Guaranteed sectors 488,397,168 312,581,808
Heads 1
Discs 1
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density 1413 kbits/in max
Track density 236 ktracks/in avg
Areal density 329 Gbits/in2 avg
Spindle speed 7,200 RPM
Internal data transfer rate 1695 Mbits/sec max
Sustained data transfer rate OD 125 Mbytes/sec max
I/O data-transfer rate 300 Mbytes/sec max
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes
Height (max) 19.98 mm (0.787 inches)
Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches
Length (max) 146.99 mm (5.787 inches)
Weight (typical) 415 grams (0.915 lb.)
Average latency 4.16 msec
Power-on to ready <8.5 sec max
Standby to ready <8.5 sec max
Track-to-track seek time <1.0 msec typical read;

Average seek, read <8.5 msec typical
Average seek, write <9.5 msec typical
Startup current (typical) 12V (peak) 2.0 amps
Voltage tolerance (including noise) 5V +10% / -7.5%

Ambient temperature 0° to 60°C (operating)

Temperature gradient 20°C per hour max (operating)

Relative humidity 5% to 95% (operating)

Relative humidity gradient 30% per hour max
Wet bulb temperature 37.7°C max (operating)

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating
(below mean sea level, max)

Operational Shock 70 Gs max at 2 msec
Non-Operational Shock 350 Gs max at 2 msec

Multiword DMA modes 0–2
Ultra DMA modes 0–6

<1.2 msec typical write

12V +10% / -7.5%

–40° to 70°C (nonoperating)

30°C per hour max (nonoperating)

5% to 95% (nonoperating)

40.0°C max (nonoperating)

(–1000 ft. to 10,000+ ft.)
–60.96 m to 12,192 m

(–1000 ft. to 40,000+ ft.)

8 Barracuda 7200.12 Serial ATA Product Manua l, Rev. D

Drive specification ST3250318AS ST3160318AS
Vibration, operating 2–22 Hz: 0.25 Gs, Limited displacement

Vibration, nonoperating 5–22 Hz: 2.0 Gs

Drive acoustics, sound power
Idle** 2.6 bels (typical)

Seek 2.8 bels (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.32%
Warranty To determine the warranty for a specific drive, use a web browser to access the following

Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity
Supports Hotplug operation per the

Serial ATA Revision 2.5 specification

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

**During periods of drive idle, some offline a ctivity may occur according to the S.M.A.R.T. specification, which may incr ease acoustic and

power to operational levels.

22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs

22–350 Hz: 5.0 Gs
350–500 Hz: 2.0 Gs

2.7 bels (max)

3.0 bels (max)

14

bits read

web page:
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

support.seagate.com/customer/warranty_validation.jsp

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 9

2.1 Formatted capacity

Model

ST31000528AS 1000 Gbytes 1,953,525,168
ST3750528AS 750 Gbytes 1,465,149,168
ST3500418AS

ST3500410AS
ST3320418AS 320 Gbytes 625,142,448
ST3250318AS 250 Gbytes 488,397,168
ST3160318AS 160 Gbytes 312,581,808

*One Gbyte equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment

and formatting.

Formatted
capacity*

500 Gbytes 976,773,168

Guaranteed
sectors

Bytes per sector

512

2.1.1 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 137 Gbytes.

2.2 Default logical geometry

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.

10 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

2.3 Recording and interface technology

Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density (kbits/inch max) 1413
Track density (ktracks/inch avg) 236

2

Areal density (Gbits/inch
Spindle speed (RPM) 7,200 ± 0.2%
Internal data transfer rate (Mbits/sec max) 1695
Sustained data transfer rate (Mbytes/sec max) 125
I/O data-transfer rate (Mbytes/sec max) 300

avg) 329

2.4 Physical characteristics

Maximum height

1000 and 750 GB models 26.1 mm (1.028 inches)

500, 320, 250 and 160 GB models 19.98 mm (0.787 inches)
Maximum width 101.6 mm (4.000 +/- 0.010 inches)
Maximum length 146.99 mm (5.787 inches)
Typical weight

1000 and 750 GB models 622 grams (1.371 lb.)

500, 320, 250 and 160 GB models 415 grams (0.915 lbs)
Cache buffer

1000 and 750 GB models 32 Mbytes (32,768 kbytes)

500 and 320 GB models 16 Mbytes (16,384 kbytes)

250 and 160 GB models 8 Mbytes (8,192 kbytes)

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 11

2.5 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

• Average seek time is a true s tatistical random average of at le ast 5,000 measurements of seek s between
r

andom tracks, less overhead.

Typical seek times (msec) Read Write

Track-to-track 1.0 1.2
Average 8.5 9.5
Average latency: 4.16

possible single-track seeks in both directions.

Note. T

hese drives are designed to consistently meet the seek times represented in this manual. Physical
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.

2.6 Start/stop times

Power-on to Ready (typ / max sec)

Standby to Ready (typ / max sec)

Ready to spindle stop

(typ / max sec)

1000 and 750 GB models 500, 320, 250 and 160 GB models

<10.0

<10.0

10

<8.5

<8.5

12 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

2.7 Power specifications

The drive receives DC power (+5V or +12V) through a na tive SATA power con nector. See Figure 2 on page 22.

2.7.1 Power consumption

Power requirements for the drives are listed in the t ab le on p age 9. Typical power measurements are based on
a

n 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
speed.

• Read/write power and current

Read/write power is measured with the heads on track, ba
delay, then a 16-sector read followed by a 32-msec delay.

• Operating power and current

Operating power is measured using 40 pe

rcent 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 spee
a random track location.

time that the drive spindle reaches operating

sed on a 16-sector write followed by a 32-msec

d, with servo electronics active and with the heads in

• Standby mode

During Standby mode, the drive accepts commands, but th

e drive is not spinning, and the servo and read/

write electronics are in power-down mode.

Table 4: DC power requirements

Power dissipation (2-disc values shown) A v g (watts 25° C) Avg 5V typ amps Avg 12V typ amps

Spinup — — 2.0 (peak)
Idle* † 5.0 0.168 0.337
Idle* † (with offline activity) 5.40 0.153 0.387
Operating 6.57 0.496 0.341
Standby 0.79 0.35 0.01
Sleep 0.79 0.35 0.01

Table 5: DC power requirements

Power dissipation (1-disc values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps

Spinup — — 2.0 (peak)
Idle* † 4.60 0.378 0.224
Idle* † (with offline activity) 4.50 0.250 0.240
Operating 6.19 0.656 0.243
Standby 0.79 0.35 0.01
Sleep 0.79 0.35 0.01

*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

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 13

2.7.2 Conducted noise

Input noise ripple is measured at the host system powe r 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 10 MHz.

• 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 10 MHz.

Note. Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write

current.

2.7.3 Voltage tolerance

Voltage tolerance (including noise):
5V +10% / -7.5%

12V +10% / -7.5%

2.7.4 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
power-management 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 disc
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 disc 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 disc access is necessary.

14 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

2.8 Environmental specifications

2.8.1 Ambient temperature

Ambient temperature is defined as the temperature of th

e environment immediately surrounding the drive.

Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions.

Operating: 0° to 60°C (32° to 140°F)

noperating: –40° to 70°C (–40° to 158°F)

No

2.8.2 Temperature gradient

Operating: 20°C per hour (68°F per hour max), without condensation
Nonoperating: 30°C per hour (86°F per hour max)

2.8.3 Humidity

2.8.3.1 Relative humidity

Operating: 5% to 95% noncondensing (30% per hour max)
Nonoperating: 5% to 95% noncondensi ng (30% per hour max)

2.8.3.2 Wet bulb temperature

Operating: 37.7°C (99.9°F max)
Nonoperating: 40°C (104°F max)

2.8.4 Altitude

Operating: –304.8 m to 3,048 m (–1000 ft. to 10,000+ ft.)
Nonoperating: –304.8 m to 12,192 m (–1000 ft. to 40

,000+ ft.)

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 15

2.8.5 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.

2.8.5.1 Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 70 Gs based on half-sine shock pulses of 2 msec during read operations. Shocks should
not be repeated more than two times per second.

2.8.5.2 Nonoperating shock

1000 and 750 GB models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 30 0 Gs based on a nonrepe titive half-sine sho ck pulse
of 2 msec duration.

500, 320, 250 and 160 GB models

The nonoperating shock level that the drive can experience without incurring physical damage or degradation
in performance when subsequently put into operation is 35 0 Gs based on a nonrepe titive half-sine sho ck pulse
of 2 msec duration.

2.8.6 Vibration

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.

2.8.6.1 Operating vibration

The maximum vibration levels that the drive may experience while meeting the performance standards speci­fied in this document are specified below.

2–22 Hz 0.25 Gs (Limited displacement)
22–350 Hz 0.50 Gs
350–500 Hz 0.25 Gs

2.8.6.2 Nonoperating vibration

The maximum nonoperating vibration levels that the drive may experience without incurring physical damage
or degradation in performance when subsequently put into operatio n are specified below.

5–22 Hz 2.0 Gs (limited displacement)
22–350 Hz 5.0 Gs
350–500 Hz 2.0 Gs

16 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

2.9 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.

Note. Fo

r seek mode tests, the drive is placed in seek mode on ly. The number of seeks per second is defined

by the following equation:

(Number of seeks per second = 0.4 / (average latency + average access time)

Table 6: Fluid Dynamic Bearing (FDB) motor acoustics

Idle* Seek

All models

*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.

2.6 bels (typ)

2.7 bels (max)

2.8 bels (typ)

3.0 bels (max)

2.9.1 Test for Prominent Discrete Tones (PDTs)

Seagate follows the ECMA-74 standards for measurement an

d 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.

2.10 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 the following table:

Table 7: Radio frequency envir onments

Test Description Performance level Reference standard

Electrostatic
discharge

Radiated RF
immunity

Electrical fast
transient

Surge immunity ± 1 kV differential, ± 2 kV common, AC mains B EN 61000-4-5: 95
Conducted RF

immunity
Voltage dips,

interrupts

Contact, HCP, VCP: ± 4

80 to 1,000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz

± 1 kV on AC mains, ± 0.5 kV on external I/O B EN 61000-4-4: 95

150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz sine A EN 61000-4-6: 97

0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds

kV; Air: ± 8 kV B EN 61000-4-2: 95

A EN 61000-4-3: 96

C
C
C
B

ENV 50204: 95

EN 61000-4-11: 94

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 17

2.11 Reliability

2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)

The product shall achieve an Annualized Failure Rate (AFR) of 0.32% (MTBF of 0.75 million hours) when oper­ated in an environment of ambien t air temperatur es of 25
tions in Section 2.8 may increase the product AFR (decrease MTBF). AFR and MTBF are population statistics
that are not relevant to individual units.

AFR and MTBF specifications are based on the following assumptions for desktop per sonal comp uter environ­ments:

• 2400 power-on-hours per year.

• 10,000 average motor start/stop cycles per year.

• Operations at nomina l voltages.

• Temperatures outside the specifications in Section 2.8 may reduce the product reliability.

• Normal I/O duty cycle for desktop personal computers. Operation at excessive I/O duty cycle may degrade
product reliability.

The desktop personal computer environment of power-on-hours, temperature, and I/O duty cycle affect the
product AFR and MTBF. The AFR and MTBF will be degraded if used in an enterprise application

Nonrecoverable read errors 1 per 1014 bits read, max
Annualized Failure Rate (AFR) 0.32% (nominal power, 25°C ambient temperature)
Contact start-stop cycles 50,000 cycles

(at nominal voltage and temperature, with 60 cycles per hour and a 50% duty cycle)

°C. Operation at temperatures outside the specifica-

Warranty To determine the warranty for a specific drive, use a web browser to access the

Preventive maintenance None required.

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.

2.12 Agency certification

2.12.1 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.

2.12.2 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.

18 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

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 7200.12

• Certificate number: STX - 720012 (B)

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).

2.12.3 FCC verification

These drives are intended to be contained solely within a pe rson al computer or simila r enclosur e (no t 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,
disc 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 noncertified assemb lies is likely to result in
interference to radio and television rec ep tio n.

Radio and television interference. This equipment generates and uses radio frequency energy and if not
installed and used in strict accordance w ith 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.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 19

2.13 Environmental protection

Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemical substances.

2.13.1 European Union Restriction of Hazardous Substances (RoHS) Directive

The European Union Restriction of Hazardous Substances (
cal substances, including Lead, Cadmium, Me rcury, Hexavalent Chromium, PBB and PBDE, in electronic prod­ucts, effective July 2006. This drive is manufactured with component s and mater ials that comply with the RoHS
Directive.

2.13.2 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 substa nce content of the p art (at the homogenou s material level) is lower
than the threshold defined by the China RoHS MCV Standard.

RoHS) Directive, restricts the presence of chemi-

中国限制危险物品的指 令

“O”

表示该部件（于同类物品程度上）所含的危险和有毒物质低于中国

"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.

“X”

表示该部件（于同类物品程度上）所含的危险和有毒物质超出中国

RoHS MCV

RoHS MCV

标准所定义的门槛值。

标准所定义的门槛值。

2.14 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 produ cts 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.

20 Barracuda 7200.12 Serial ATA 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 str ap , or ground yourself frequently by touching the metal
chassis of a computer that is plugged into a grounded outlet. Wea r 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 co nnector pins or the printed circuit board.

• Do not remove the factory-installed labels from the dr ive 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.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 21

3.2 Configuring the drive

Each drive on the Serial ATA interface connects point-to-point with the Serial ATA 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 Serial ATA 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.

Serial ATA 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 no t detected” error, your SATA­equipped motherboard or host adapter may use a chipset that does not suppor t SATA speed auto negotiation. If
you have a motherboard or host adapter that does not support autonegotiation:

• Install a jumper as shown in Figure 1 below to limit the data transfer rate to 1.5 Gbits per second (and leave
the drive connected to the SATA-equipped motherboard or h
or

• Install a SATA host adapter that supp

orts autonegotiation, leave the drive jumper block set to “Normal
operation” (see Figure 1 below), and connect the drive to that adapter.
the drive to a 1.5 Gbits/sec transfer rate.

3.0 Gbits per second operation

Limit data transfer rate to

1.5 Gbits per second

ost adapter that doesn’t support autonegotiation)

This option has the benefit of not limiting

Jumper block

SATA interface connector

Figure 1. Serial ATA connectors

SATA power connector

3.3 Serial ATA cables and connectors

The Serial ATA 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 8
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 2.

Signal connector

Power connector

Signal cable

Power cable

Figure 2. Attaching SATA cabling

Each cable is keyed to ensure correct orientation. Barracuda 7200.12 Serial ATA drives support latching SATA
connectors.

22 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

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. See Figure 3 for drive mounting dimensions. Follow these important mounting precau­tions when mounting the drive:

• Allow a minimum clearance of 0.030 in

• Use only 6-32 UNC mounting screws.

• The screws should be inserted no more than 0.150 inch (3.81 mm) into the bottom or side mounting holes.

• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).

ches (0.76 mm) around the entire perimeter of the drive for coolin g.

Recommended
case temperature
measurement location

Figure 3. Mounting dimensions (1000 and 750 GB models)

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 23

Recommended
case temperature
measurement location

Figure 4. Mounting dimensions (500, 320, 250 and 160 GB models)

24 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

4.0 Serial ATA (SATA) interface

These drives use the industry-standard Serial ATA interface that supports FIS data transfers. It supports ATA
programmed input/output (PIO) modes 0–4; multiword DMA modes 0–2, and Ultra DMA modes 0–6.

For detailed information about the Serial ATA interface, refer to the “Serial ATA: High Speed Serialized AT
Attachment” specification.

4.1 Hot-Plug compatibility

Barracuda 7200.12 Serial ATA drives incorporate connectors which enable you to hot plug these drives in
accordance with the Serial ATA Revision 2.5 specification. This specification can be downloaded from
www.serialata.org.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 25

4.2 Serial ATA device plug connector pin definitions

Table 8 summarizes the signals on the Serial ATA interface and power connectors.

Table 8: Serial ATA connector pin definitions

Segment Pin Function Definition

S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 A­S4 Ground 2nd mate
S5 B- Differential signal pair B from Phy
S6 B+

Signal

S7 Ground 2nd mate

Key and spacing separate signal and power segments

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

Power

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”) 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.

4. All used voltage pins (Vx) must be terminated.

26 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

4.3 Supported ATA commands

The following table lists Serial ATA standard commands that the drive supports.
For a detailed description of the ATA commands, refer to the Serial ATA International Organization:
Serial ATA Revision 2.6 (http://www.sata-io.org).

See “S.M.A.R.T. commands” on page 34 for details and subcommands used in the S.M.A.R.T. implementation.

Table 9: Supported ATA 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
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

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 7200.12 Serial ATA Product Manual, Rev. D 27

Command name Command code (in hex)

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

Note: Individual Set Max Address
commands are identified by the value
placed in the Set Max Features regis­ter as defined to the right.

H
H
H
H
H
H

H

H

Address:

Password:

Lock:

Unlock:

Freeze Lock:
Set Max Address Extended 37
Set Multiple Mode C6
Sleep E6
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 Thre sholds 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 CD
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
H

H

H

H
H

H

H

H

H
H
H
H
H

00
01
02
03
04

H
H
H
H
H

28 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

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-b yte block of data, whose contents are shown in Tabl e 9 on
page 27. 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. See Section 2.0 on page 3 for default parameter settings.

The following commands contain drive-specific features that may not be included in the Serial ATA specifica­tion.

Word Description Value

Configuration information:

0

1 Number of logical cylinders 16,383

• Bit 15: 0 = ATA; 1 = ATAPI

• Bit 7: removable media

• Bit 6: removable controller

• Bit 0: reserved

0C5A

H

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

27–46

47

Firmware revision
(8 ASCII character string, padded with blanks to end of string)

Drive model number:
(40 ASCII characters, padded with blanks to end of string)

(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write
multiple (16)

x.xx

8010

48 Reserved 0000
49 Standard Standby timer, IORDY supported and may be disabled 2F0 0
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

59

Number of sectors transferred during a Read Multiple
or Write Multiple command

xxxx

H

H
H
H
H

H
H
H

H

H
H
H
H
H

H
H
H
H
H

H

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 29

Word Description Value

Total number of user-addressable LBA sectors available
(see Section 2.1 for related information)

60–61

*Note: The maximum value allowed in this field is: 0FFFFFFFh
(268,435,455 sectors, 137 Gbytes). Drives with capacities over 137

0FFFFFFFh*

Gbytes 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
(see note following this table)

xx07

64 Advanced PIO modes supported (modes 3 and 4 supported) 0003
65 Minimum multiword DMA transfer cycle time per word (120 nsec) 0078

66

Recommended multiword DMA transfer cycle time per word
(120 nsec)

0078

67 Minimum PIO cycle time without IORDY flow control (240 nsec) 00F0
68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078
69–74 ATA-reserved 0000
75 Queue depth 001F
76 Serial ATA capabilities xxxx
77 Reserved for future Serial ATA definition xxxx
78 Serial ATA features supported xxxx
79 Serial ATA features enabled xxxx
80 Major version number 003E
81 Minor version number 0028
82 Command sets supported 364B
83 Command sets supported 7C03

4003
(4003H = 0100000000000011
binary)

84

Command sets support extension
(see note following this table)

H

H

H
H

H

H
H
H

H
H
H
H
H

H

H

H
H

See Word 108-111 note.

H

85 Command sets enabled 30xx
86 Command sets enabled 0001
87 Command sets enable extension 4000
88 Ultra DMA support and current mode (see note following this table) xx3F
89 Security erase time 0000
90 Enhanced security erase time 0000
92 Master password revision code FFFE
93 Hardware reset value xxxx
95–99 ATA-reserved 0000

H

H

H

H

H

H

H

H

H

ST31000528AS = 1,953,525,168
ST3750528AS = 1,465,149,168
ST3500418AS = 976,773,168
ST3500410AS = 976,773,168
ST3320418AS = 625,142,448
ST3250318AS = 488,397,168

100–103

Total number of user-addressable LBA sectors available (see Section

2.1 for related information). These words are required for drives that
support the 48-bit addressing feature. Maximum value:
0000FFFFFFFFFFFFh.

ST3160318AS = 312,581,808

30 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

Word Description Value

104–107 ATA-reserved 0000
108–111 The mandatory value of the world wide name (WWN) for the drive.

NOTE: This field is valid if word 84, bit 8 is set to 1 indicating 64-bit

H

Each drive will have a unique
value.

WWN support.
1 12–127 ATA-reserved 0000
128 Security status 0001
129–159 Seagate-reserved xxxx

160–254 ATA-reserved 0000
255 I nt eg ri ty w ord xxA5

H
H

H

H
H

Note. Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not supported

Note. 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.
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.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 31

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.

32 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

4.3.2 Set Features command

This command controls the implementation of various featur es that the drive su pports. 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 10: Set Features command values

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

08HPIO mode 0
09HPIO mode 1
0A

PIO mode 2

H

0BHPIO mode 3
0CHPIO mode 4 (default)
20

Multiword DMA mode 0

H

21HMultiword DMA mode 1
22HMultiword DMA mode 2
40

Ultra DMA mode 0

H

41HUltra DMA mode 1
42HUltra DMA mode 2
43

Ultra DMA mode 3

H

44HUltra DMA mode 4
45HUltra DMA mode 5
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 indi-

cated above.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 33

4.3.3 S.M.A.R.T. commands

S.M.A.R.T. provides near-term failure prediction for disc 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 D4

) that elimi-

H

nates unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:

http://seatools.sea

gate.com.

This drive is shipped with S.M.A.R.T . featur es disabled . You must have a recent BIOS or software p ackage 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 11: 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

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

Note. 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.

34 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

5.0 Seagate Technology support services

Internet

For information regarding Seagate products and services, visit www.sea
Worldwide support is available 24 hours daily by e-mail for your questions.

Presales Support:

[e-mail]

Technical Support:

[e-mail]

Warranty Support:

http://www.sea

mySeagate

my.sea

self-service access to critical applicat ions, personalized conten t and the tools that allow our partners to man­age their Seagate account functions. Submit pricing requests, orders and returns through a single, password­protected Web interface-anytime, anywhere in the world.

spp.seagate.com

spp.sea

may register for customized communications that are not availab le on the web. These commu nications cont ain
product launch, EOL, pricing, promotions and other channel-related information. To learn more about the ben­efits or to register, go to spp.sea

gate.com is the industry's first Web portal designed specifically for OEMs and distributors. It provides

gate.com/www/en-us/support/warranty_&_returns_assistance

gate.com supports Seagate resellers with product information, program benefits and sales tools. You

gate.com, any time, from anywhere in the world.

gate.com.

Global Customer Support

Presales Support

Our Presales Support staff can help you determine which Seagate products are best suited for your specific
application or computer system, as well as product availability and compatibility.

Technical Support

Seagate technical support is availa ble to assist you online at suppo rt.seagate.com or through one of our call
centers. Have your system configuration information and your "ST" model/product number available.

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 35

Customer Service Operations

Warranty Service

Seagate offers worldwide customer su pport fo r Seag ate products. Seagate distributo rs, OEMs and other direct
customers should contact their Seagate Customer Service Operations (CSO) representative for warranty­related issues. Resellers or end users of drive product s sh ould cont a ct their place of purcha se or Seagate war­ranty service for assistance. Have your serial number and model or part number available.

Data Recovery Services

Seagate offers data recovery services for all formats and all brands of storage media. Our data recovery ser­vices labs are currently located throughout the world. Additional information, including an online request form
and data loss prevention resources, is available at http://services.sea

gate.com/index.aspx.

Authorized Service Centers

Seagate Service Centers are available on a global basis for the retu rn of defective products.
See www.sea

gate.com for the service center near you.

USA/Canada/Latin America support services

For an extensive list of telephone numbers to technical support, presales and warranty service in USA/
Canada/Latin America, including business hours, go to the "Contact Us" page on www.sea

gate.com.

Global Customer Support

Presales, Technical, and Warranty Support
Call Center Toll-free Direct dial

USA, Canada,
and Mexico 1-800-SEAGATE [phone]

Data Recovery Services
Call Center Toll-free Direct dial FAX

USA, Canada, 1-800-475-0143 [phone]-475-0158
and Mexico [phone]

Europe, the Middle East and Africa Support Services

For an extensive list of telephone numbers to technical support, presales and warranty service in Europe, the
Middle East and Africa, go to the "Contact Us" page on www.sea

gate.com.

Asia/Pacific Support Services

For an extensive list of telephone numbers to technical support, presales and warranty service in Asia/Pacific,
go to the "Contact Us" page on www.sea

gate.com.

36 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

Index

A

ACA 19
acceleration 16
acoustics 17
Active 14
Active mode 14
AFR 18
Agency certification 18
altitude 15
Ambient temperature 15
ambient temperature 12, 13
Annualized Failure Rate 18
Annualized Failure Rate (AFR) 18
areal density 11
ATA commands 27
Australia/New Zealand Standard AS/NZ CISPR22 19
Australian Communication Authority (ACA) 19
Australian C-Tick 19
Average latency 12
Average seek time 12

B

buffer 11

C

cables and connectors 22
cache 11
capacity 10
case temperature 15
CE mark 18
certification 18
Check Power Mode 27
China RoHS directive 20
compatibility 18
Conducted noise 14
Conducted RF immunity 17
Configuring the drive 21
connectors 22
Corrosive environment 20
CSA60950-1 18
cycles 18
Cylinders 10

D

data-transfer rates 1
DC power 13
Default logical geometry 10
density 11
Device Configuration Freeze Lock 27
Device Configuration Identify 27

Device Configuration Restore 27
Device Configuration Set 27
Device Reset 27
dimensions 23, 24
dissipation 13
Download Microcode 27
duty cycle 18

E

Electrical fast transient 17
Electromagnetic compatibility 18
Electromagnetic Compatibility (EMC) 19
Electromagnetic Compatibility control Regulation 19

Electromagnetic Compatibility Directive (2004/108/

EC)

18

Electromagnetic immunity 17
Electrostatic discharge 17
electrostatic discharge (ESD) 21
EN 55022, Class B 18
EN 55024 18
EN60950 18
enclosures 19
Environmental specifications 15
error-correction algorithms 1
errors 18
ESD 21
EU 18
EU RoHS directive 20
European Union (EU) requirements 18
Execute Device Diagnostics 27

F

FCC verification 19
features 1
Flush Cache 27
Flush Cache Extended 27
Format Track 27
Formatted capacity 10

G

geometry 10
Gs 16
guaranteed sectors 10

H

Handling precautions 21
heads 10
height 11
humidity 15

I

I/O data-transfer rate 11
I/O duty cycle 18

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 37

Identify Device 27
Identify Device command 29
Idle 14, 27
Idle Immediate 27
Idle mode 13, 14
Information Technology Equipment (ITE) 18
Initialize Device Parameters 27
Input noise ripple 14
input voltage 13
interface 11, 25
interference 19
internal data-transfer rate OD 11
is 12
ISO document 7779 17
ITE 18

Power consumption 13
power dissipation 13
Power modes 14
Power specifications 13
Power-management modes 14
Power-on to Ready 12
power-on-hours 18
precautions 21
printed circuit board 21
programmable power management 14
prominent discrete tone 17

Q

quick reference 3

K

KCC 19
Korean Communications Commission 19
Korean RRL 19

L

latency 12
LBA mode 10
length 11
logical geometry 10

M

maintenance 18
master/slave 2
Mean Time Between Failures 18
mounting 23
mounting screws 16
mounting the drive 21
MTBF 18

N

noise 14
nominal power 12
Nonoperating shock 16
Nonoperating vibration 16
Nonrecoverable read errors 18

O

operating 13
Operating power 13
Operating shock 16
Operating vibration 16

P

Physical characteristics 11
point-to-point 2, 22

R

Radiated RF immunity 17
radio and television interference 19
radio frequency (RF) 17
random seeks 13
Read Buffer 27
Read DMA 27
Read DMA Extended 27
Read DMA without Retries 27
read errors 18
Read Log Ext 27
Read Multiple 27
Read Multiple Extended 27
Read Native Max Address 27
Read Native Max Address Extended 27
Read Sectors 27
Read Sectors Extended 27
Read Sectors Without Retries 27
Read Verify Sectors 27
Read Verify Sectors Extended 27
Read Verify Sectors Without Retries 27
Read/write heads 10
Read/write power 13
Recalibrate 27
recording density 11
recording method 11
Recording technology 11
relative humidity 15
Reliability 18
RF 17
RMS read/write current 14
RoHS 20
RRL 19

S

S.M.A.R.T. Disable Operations 28
S.M.A.R.T. Enable Operations 28
S.M.A.R.T. Enable/Disable Autosave 28
S.M.A.R.T. Execute Offline 28

38 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

S.M.A.R.T. implementation 27
S.M.A.R.T. Read Attribute Thresholds 28
S.M.A.R.T. Read Data 28
S.M.A.R.T. Read Log Sector 28
S.M.A.R.T. Return Status 28
S.M.A.R.T. Save Attribute Values 28
S.M.A.R.T. Write Log sector 28
Safety certification 18
SATA 25
screws 16
sectors 10
Sectors per track 10
Security Disable Password 27
Security Erase Prepare 28
Security Erase Unit 28
Security Freeze 28
Security Set Password 28
Security Unlock 28
See “S.M.A.R.T. commands” on page 34 27
Seek 28
Seek time 12
Serial ATA (SATA) interface 25
serial ATA ports 2
servo electronics 13
Set Features 28
Set Max Address 28
Set Max Address Extended 28
Set Multiple Mode 28
Shock 16
single-track seeks 12
Sleep 13, 14, 28
Sleep mode 14
sound 17
Specification summary table 3
spindle speed 11
Spinup 13
Spinup power 13
Standby 13, 14, 28
Standby Immediate 28
Standby mode 13, 14
standby timer 14
Standby to Ready 12
Start/stop times 12
start-stop cycles 18
static-discharge 21
subassembly 19
support services 35
Surge immunity 17

track density 11
Track-to-track 12
Track-to-track seek time 12

U

UL60950-1 18

V

Vibration 16
voltage 13
Voltage dips, interrupts 17
Voltage tolerance 14

W

Warranty 18
weight 11
wet bulb temperature 15
width 11
Write Buffer 28
Write DMA 28
Write DMA Extended 28
Write DMA FUA Extended 28
Write DMA Without Retries 28
Write Log Extended 28
Write Multiple 28
Write Multiple Extended 28
Write Multiple FUA Extended 28
Write Sectors 28
Write Sectors Extended 28
Write Sectors Without Retries 28

T

technical support services 35
temperature 12, 15
temperature gradient 15
timer 14
timers 14

Barracuda 7200.12 Serial ATA Product Manual, Rev. D 39

40 Barracuda 7200.12 Serial ATA Product Manual, Rev. D

Seagate Technology LLC

920 Disc Drive, Scotts Valley, California 95066-4544, USA

Publication Number: 100529369, Rev. D , Printed in U.S.A.