Seagate ST31000340NS, ST3500320NS, ST3750330NS, ST3250310NS User Manual

Product Manual

Barracuda ES.2 Serial ATA

ST31000340NS

ST3750330NS

ST3500320NS

ST3250310NS

100468393 Rev. A August 2007

Revision history

Revision Date Sheets affected or comments

Rev. A 08/10/07 Initial release

Publication number: 100468393, Rev. A August 2007

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 other trademarks or registered trademarks are the property of their respective owners.

One gigabyte, or GB, equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting. Seagate reserves the right to change, with out 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 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.8.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.9 Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.9.6 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

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

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.14 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

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

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

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Barracuda ES.2 Serial ATA Product Manual, Rev. A i

ii Barracuda ES.2 Serial ATA Product Manual, Rev. A

List of Figures

Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Barracuda ES.2 Serial ATA Product Manual, Rev. A iii

1.0 Introduction

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

ST31000340NS ST3750330NS ST3500320NS ST3250310NS

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.

• 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.

ES.2 Serial ATA model drives:

Barracuda ES.2 Serial ATA Product Manual, Rev. A 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 contents of the traditional device registers, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional information about how Serial ATA emulates parallel ATA, refer to the “Serial ATA: High Speed Serialized AT Attachment” specification. The specification can be downloaded from www.serialata.org.

2 Barracuda ES.2 Serial ATA Product Manual, Rev. A

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:

ST31000340NS ST3750330NS ST3500320NS ST3250310NS

2.1 Specification summary tables

The specifications listed in the following tables are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.

Barracuda ES.2 Serial ATA Product Manual, Rev. A 3

Table 1: Drive specifications summary for 1000 GB (1 Tbyte) and 750 GB models

Drive specification ST31000340NS ST3750330NS

Formatted Gbytes (512 bytes/sector)* 1000 750

Guaranteed sectors 1,953,525,168 1,465,149,168

Heads 8 6

Discs 4 3

Bytes per sector 512

Default sectors per track 63

Default read/write heads 16

Default cylinders 16,383

Recording density, KBPI (kbits/in max) 1,090

Track density, KTPI (ktracks/in avg.) 150

Areal density, (Gbits/in2 avg) 164

Spindle speed (RPM) 7,200

Internal data transfer rate (Mbits/sec max) 1287

Sustained data transfer rate OD (Mbytes/sec max) 105

I/O data-transfer rate (Mbytes/sec max) 300

ATA data-transfer modes supported PIO modes 0–4

Cache buffer 32 Mbytes

Height (mm max) 26.1 mm (1.028 inches)

Width (mm max) 101.6 mm (4.000 inches) +/- 0.010 inches

Length (mm max) 146.99 mm (5.787 inches)

Weight (max) 665 grams (1.466 lbs) 630 grams (1.389 lbs)

Average latency 4.16 msec

Power-on to ready (sec max) 20 sec

Standby to ready (sec max) 10 sec 9 sec

Track-to-track seek time (msec typical) 0.8 read; 1.0 write

Average seek, read (msec typical) 8.5

Average seek, write (msec typical) 9.5

Startup current (typical) 12V (peak) 2.8 amps

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

Ambient temperature 5° to 55°C (operating)

Temperature gradient (°C per hour max) 20°C (operating)

Relative humidity 5% to 95% (operating)

Relative humidity gradient 30% per hour max

Wet bulb temperature (°C max) 37.7 (operating)

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating (below mean sea level, max)

Operational Shock (max at 2 msec) 70 Gs

Non-Operational Shock (max at 2 msec) 300 Gs

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

12V + 10% / -7.5%

–40° to 70°C (nonoperating)

30°C (nonoperating)

5% to 95% (nonoperating)

40.0 (nonoperating)

(–200 ft. to 10,000+ ft.)

–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

4 Barracuda ES.2 Serial ATA Product Manual, Rev. A

Drive specification ST31000340NS ST3750330NS

Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

Vibration, nonoperating 5–22 Hz: 2.0 Gs, Limited displacement

Drive acoustics, sound power (bels)

Active 3.25 (typical)

Idle** 2.7 (typical)

Performance seek 3.05 (typical)

Quiet seek 2.95 (typical)

Nonrecoverable read errors 1 sector per 10

Annualized Failure Rate (AFR) 0.73%

Warranty 5 years on distribution units.

Contact start-stop cycles (25°C, 50% rel. humidity)

Supports Hotplug operation per Serial ATA Revision 2.5 specification

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

22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs

3.4 (max)

2.9 (max)

3.2 (max)

3.1 (max)

bits read

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

50,000

Ye s

www.seagate.com/support/service/

*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 activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

Barracuda ES.2 Serial ATA Product Manual, Rev. A 5

Table 2: Drive specifications summary for 500 GB and 250 GB models

Drive specification ST3500320NS ST3250310NS

Formatted Gbytes (512 bytes/sector)* 500 250

Guaranteed sectors 976,773,168 488,397,168

Heads 4 2

Discs 2 1

Bytes per sector 512

Default sectors per track 63

Default read/write heads 16

Default cylinders 16,383

Recording density, KBPI (kbits/in max) 1,090

Track density, KTPI (ktracks/in avg.) 150

Areal density, (Gbits/in2 avg) 164

Spindle speed (RPM) 7,200

Internal data transfer rate (Mbits/sec max) 1287

Sustained data transfer rate OD (Mbytes/sec max) 105

I/O data-transfer rate (Mbytes/sec max) 300

ATA data-transfer modes supported PIO modes 0–4

Cache buffer 32 Mbytes

Height (mm max) 26.1 mm (1.028 inches)

Width (mm max) 101.6 mm (4.000 inches) +/- 0.010 inches

Length (mm max) 146.99 mm (5.787 inches)

Weight (max) 530 grams (1.168 lbs) 495 grams (1.091 lbs)

Average latency 4.16 msec

Power-on to ready (sec max) 20 sec

Standby to ready (sec max) 8 sec

Track-to-track seek time (msec typical) 0.8 read; 1.0 write

Average seek, read (msec typical) 8.5

Average seek, write (msec typical) 9.5

Startup current (typical) 12V (peak) 2.8 amps

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

Ambient temperature 5° to 55°C (operating)

Temperature gradient (°C per hour max) 20°C (operating)

Relative humidity 5% to 95% (operating)

Relative humidity gradient 30% per hour max

Wet bulb temperature (°C max) 37.7 (operating)

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating (below mean sea level, max)

Operational Shock (max at 2 msec) 70 Gs

Non-Operational Shock (max at 2 msec) 300 Gs

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

12V + 10% / -7.5%

–40° to 70°C (nonoperating)

30°C (nonoperating)

5% to 95% (nonoperating)

40.0 (nonoperating)

(–200 ft. to 10,000+ ft.)

–60.96 m to 12,192 m (–200 ft. to 40,000+ ft.)

6 Barracuda ES.2 Serial ATA Product Manual, Rev. A

Drive specification ST3500320NS ST3250310NS

Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

Vibration, nonoperating 5–22 Hz: 2.0 Gs, Limited displacement

Drive acoustics, sound power (bels)

Active 3.25 (typical)

Idle** 2.5 (typical)

Performance seek 2.85 (typical)

Quiet seek 2.75 (typical)

Nonrecoverable read errors 1 sector per 10

Annualized Failure Rate (AFR) 0.73%

Warranty 5 years on distribution units.

Contact start-stop cycles (25°C, 50% rel. humidity)

Supports Hotplug operation per Serial ATA Revision 2.5 specification

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

22–350 Hz: 5.0 Gs 350–500 Hz: 2.0 Gs

3.4 (max)

2.7 (max)

3.0 (max)

2.9 (max)

bits read

50,000

Ye s

www.seagate.com/support/service/

*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 activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and

power to operational levels.

Barracuda ES.2 Serial ATA Product Manual, Rev. A 7

2.2 Formatted capacity

Model

ST31000340NS 1000 Gbytes 1,953,525,168

ST3750330NS 750 Gbytes 1,465,149,168

ST3500320NS 500 Gbytes 976,773,168

ST3250310NS 250 Gbytes 488,397,168

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

and formatting.

Formatted capacity*

Guaranteed sectors

Bytes per sector

512

2.2.1 LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48bit addressing support of drives with capacities over 137 Gbytes.

2.3 Default 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.

8 Barracuda ES.2 Serial ATA Product Manual, Rev. A

2.4 Recording and interface technology

1000GB 750GB 500GB 250GB

Interface Serial ATA (SATA)

Recording method Perpendicular

Recording density, KBPI (kbits/inch max) 1,090

Track density, KTPI (ktracks/inch avg) 150

Areal density (Gbits/inch2 avg) 164

Spindle speed (RPM) (± 0.2%) 7,200

Internal data transfer rate (Mbits/sec max) 1287

Sustained data transfer rate (Mbytes/sec max) 105

I/O data-transfer rate (Mbytes/sec max) 300 (Ultra DMA mode 5)

2.5 Physical characteristics

Maximum height 26.1 mm (1.028 inches)

Maximum width 101.6 mm (4.000 +/- 0.010 inches)

Maximum length 146.99 mm (5.787 inches)

Max weight

ST31000340NS 665 grams (1.466 lbs)

ST3750330NS 630 grams (1.389 lbs)

ST3500320NS 530 grams (1.168 lbs)

ST3250310NS 495 grams (1.091 lbs)

Cache buffer 32 Mbytes (16,384 kbytes)

Barracuda ES.2 Serial ATA Product Manual, Rev. A 9

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 5,000 measurements of seeks between random tracks, less overhead.

*Typical seek times (msec) Read Write

Track-to-track 0.8 1.0

Average 8.5 9.5

Average latency: 4.16

*Measured in performance mode.

Note. These 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.

2.7 Start/stop times

ST31000340NS ST3750330NS ST3500320NS, ST3250310NS

Power-on to Ready (sec) 20 (max)

Standby to Ready (sec) 10 (max) 9 (max) 8 (max)

Ready to spindle stop (sec) 20 (max)

10 Barracuda ES.2 Serial ATA Product Manual, Rev. A

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