Seagate ST3400633AS, ST3400833AS, ST3500641AS, ST3250624AS, ST3500841AS Product Manual

Barracuda 7200.9 Serial ATA

ST3500841AS ST3200827AS
ST3500641AS ST3160812AS
ST3400833AS ST3160212AS
ST3400633AS ST3120813AS
ST3300822AS ST3120213AS
ST3300622AS ST3808110AS
ST3250824AS ST3802110AS
ST3250624AS ST3402111AS

Barracuda 7200.9 Serial ATA

ST3500841AS ST3200827AS
ST3500641AS ST3160812AS
ST3400833AS ST3160212AS
ST3400633AS ST3120813AS
ST3300822AS ST3120213AS
ST3300622AS ST3808110AS
ST3250824AS ST3802110AS
ST3250624AS ST3402111AS

©2005, 2006, Seagate Technology LLC All rights reserved

Publication number: 100390001, Rev. D

March 2006

Seagate, Seagate Technology, and the Seagate logo ar e registered trademar ks of Seagate
Technology LLC. SeaTools, SeaFONE, SeaBOARD, and SeaTDD are either registered
trademarks or tradema rks of Seaga te Technolog y LLC. Other p roduct names are regist ered
trademarks or trademarks of their owners.

Seagate reserves the right to ch ange, witho ut notice, product offerings or spec ifications . No

part of this publication may be reproduc ed in any form w ithout wr itte n per mi ssio n of Seagate

Technology LLC.

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.8.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.9.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.9.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.9.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.9.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.14 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.14.1 European Union Restriction of Hazardous Substances (RoHS) . . . . . . . . . . . . 29

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Barracuda 7200.9 Serial ATA Product Manual, Rev. D iii

iv Barracuda 7200.9 Serial ATA Product Manual, Rev. D

List of Figures

Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Barracuda 7200.9 Serial ATA Product Manual, Rev. D v

1.0 Introduction

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

Barracuda® 7200.9 Serial ATA model drives:

ST3500841AS ST3300822AS ST3200827AS ST3120213AS
ST3500641AS ST3300622AS ST3160812AS ST3802110AS
ST3400833AS ST3250824AS ST3160212AS ST3808110AS
ST3400633AS ST3250624AS ST3120813AS ST3402111AS

These drives provide the following key features:

• 7,200 RPM spindle speed.

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

• Tunneling Giant Magnetores is tiv e (TGMR) re cor di ng h ead s a nd E P RML tec hno log y, provide the drives wit h
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.

• 350 Gs nonoperating shock.

• 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.

Barracuda 7200.9 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 c onfiguration with tru e plug-and- play conn ectivity. 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 Ser ial ATA host adapter and Serial ATA disc drive in your cu rrent
system and expect all of your existing applications to work as normal.

The Serial ATA interface connects eac h disc drive in a point-to-point configu ration with the Serial ATA host
adapter. There is no master/slave relationship with Seria l ATA device s 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 essenti ally mean s both dr ives behav e as if they are Dev ice 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 so ftware as a Device 0 ( maste r) and
Device 1 (slave) acce ssed at the s ame set of ho st bus addr esses. A h ost adapter tha t emulat es a
master/slave environment manages two sets of shadow register s. This is not a typical Serial ATA
environment.

The Serial ATA host adapter and drive shar e the funct ion of emul ating para llel ATA device behavior to provid e
backward compatibility with existing host systems an d software. The Command and Contr ol 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 S hado w Register Block. All Se rial ATA devices beh av e l ike De vi ce 0 de vi c es . For add i­tional information about how Ser ial 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 7200.9 Serial ATA Product Manual, Rev. D

2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal
power. For convenience, the phrases t he drive and this drive are used throughout th is manual to indi cate the
following drive models:

ST3500841AS ST3300822AS ST3200827AS ST3120213AS
ST3500641AS ST3300622AS ST3160812AS ST3802110AS
ST3400833AS ST3250824AS ST3160212AS ST3808110AS
ST3400633AS ST3250624AS ST3120813AS ST3402111AS

2.1 Specification summary tables

The specifi cati ons list ed i n th e foll owi ng t abl e ar e fo r qui ck re fer enc e. Fo r det a ils o n spec ifi cati on m eas urem ent
or definition, see the appropriate section of this manual.

Barracuda 7200.9 Serial ATA Product Manual, Rev. D 3

Table 1: Drive specifications summary for 500 Gbyte models

Drive specification ST3500841AS ST3500641AS

Formatted Gbytes (512 bytes/sector)* 500
Guaranteed sectors 976,773,168
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 790.1
Track density, KTPI (ktracks/in avg.) 124.5
Areal density, (Gbits/in2 avg) 97.96
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 815.2
Sustained data transfer rate OD (Mbytes/sec max) 65
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes 16 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) 710 grams (1.57 lb.)
Average latency (msec) 4.16
Power-on to ready (sec max) 13.0 sec
Standby to ready (sec max) 13.0 sec
Track-to-track seek time (msec typical) <0.8 read; <1.0 write
Average seek, read (msec typical) <8.2
Average seek, write (msec typical) <9.0
Startup current (typical) 12V (peak) 2.6 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature 0° to 60°C (operating)

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

Relative humidity 5% to 90% (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) 63 Gs
Non-Operational Shock (max at 2 msec) 300 Gs
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

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

12V ± 10%

–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.)

22–350 Hz: 0.5 Gs
350–500 Hz:: 0.25 Gs

4 Barracuda 7200.9 Serial ATA Product Manual, Rev. D

Drive specification ST3500841AS ST3500641AS

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

Drive acoustics, sound power (bels)
Idle** 2.8 (typical)

Performance seek 3.7 (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 5 years on distribution units.

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

Supports Hotplug operation per SATA II
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 activity may occur according to the S.M. A. R.T. specification, which may increase acoustic and

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

3.0 (max)

3.9 (max)

14

bits read

To determine the warranty for a specific drive, use a web browser to
access the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked
to provide the drive serial number, model number (or part number) and
country of purchase. The system will display the warranty information for
your drive.

50,000

Yes

Barracuda 7200.9 Serial ATA Product Manual, Rev. D 5

Table 2: Drive specifications summary for 400 Gbyte models

Drive specification ST3400633AS ST3400833AS

Formatted Gbytes (512 bytes/sector)* 400
Guaranteed sectors 781,422,768
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 790.1
Track density, KTPI (ktracks/in avg.) 124.5
Areal density, (Gbits/in2 avg) 97.96
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 815.2
Sustained data transfer rate OD (Mbytes/sec max) 65
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 16 Mbytes 8 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) 710 grams (1.57 lb.)
Average latency (msec) 4.16
Power-on to ready (sec max) 13.0 sec
Standby to ready (sec max) 13.0 sec
Track-to-track seek time (msec typical) <0.8 (read), <1.0 (write)
Average seek, read (msec typical) <8.2
Average seek, write (msec typical) <9.0
Startup current (typical) 12V (peak) 2.6 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature 0° to 60°C (operating)

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

Relative humidity 5% to 90% (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 (Gs max at 2 msec) 63
Non-Operational Shock (Gs max at 2 msec) 300 Gs
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

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

12V ± 10%

–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.)

22–350 Hz: 0.5 Gs
350–500 Hz:: 0.25 Gs

6 Barracuda 7200.9 Serial ATA Product Manual, Rev. D

Drive specification ST3400633AS ST3400833AS

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

Drive acoustics, sound power (bels)
Idle** 2.8 (typical)

Performance seek 3.7 (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 5 years on distribution units.

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

Supports Hotplug operation per SATA II
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 activity may occur according to the S.M. A. R.T. specification, which may increase acoustic and

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

3.0 (max)

3.9 (max)

14

bits read

To determine the warranty for a specific drive, use a web browser to access
the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to
provide the drive serial number, model number (or part number) and country
of purchase. The system will display the warranty information for your drive.

50,000

Yes

Barracuda 7200.9 Serial ATA Product Manual, Rev. D 7

Table 3: Drive specifications summary for 300 Gbyte models

Drive specification ST3300822AS ST3300622AS

Formatted Gbytes (512 bytes/sector)* 300
Guaranteed sectors 586,072,368
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 790.1
Track density, KTPI (ktracks/in avg.) 124.5
Areal density, (Gbits/in2 avg) 97.96
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 867.2
Sustained data transfer rate OD (Mbytes/sec max) 76.6
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes 16 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) 655 grams (1.44 lb.)
Average latency (msec) 4.16
Power-on to ready (sec max) 11.0 sec
Standby to ready (sec max) 11.0 sec
Track-to-track seek time (msec typical) <0.8 (read), <1.0 (write)
Average seek, read (msec typical) <8.0
Average seek, write (msec typical) <9.0
Startup current (typical) 12V (peak) 2.6 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature 0° to 60°C (operating)

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

Relative humidity 5% to 90% (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 (Gs max at 2 msec) 63
Non-Operational Shock (Gs max at 2 msec) 300 Gs
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

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

12V ± 10%

–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.)

22–350 Hz: 0.5 Gs
350–500 Hz:: 0.25 Gs

8 Barracuda 7200.9 Serial ATA Product Manual, Rev. D

Drive specification ST3300822AS ST3300622AS

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

Drive acoustics, sound power (bels)
Idle** 2.7 (typical)

Performance seek 3.4 (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 5 years on distribution units.

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

Supports Hotplug operation per SATA II
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 activity may occur according to the S.M. A. R.T. specification, which may increase acoustic and

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

2.9 (max)

3.6 (max)

14

bits read

To determine the warranty for a specific drive, use a web browser to
access the following web page:
www.seagate.com/support/service/
From this page, click on the “V erif y 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

Yes

Barracuda 7200.9 Serial ATA Product Manual, Rev. D 9

Table 4: Drive specifications summary for 250 and 200 Gbyte models

Drive specification ST3250624AS ST3250824AS ST3200827AS

Formatted Gbytes (512 bytes/sector)* 250 200
Guaranteed sectors 488,397,168 390,721,968
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 790.1
Track density, KTPI (ktracks/in avg.) 124.5
Areal density, (Gbits/in2 avg) 97.96
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 867.2
Sustained data transfer rate OD (Mbytes/sec max) 76.6
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes

supported

Cache buffer 16 Mbytes 8 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) 580 grams (1.28 lb.)
Average latency (msec) 4.16
Power-on to ready (sec max) 11.0 sec
Standby to ready (sec max) 11.0 sec
Track-to-track seek time (msec typical) <0.8 (read), <1.0 (write)
Average seek, read (msec typical) <8.0
Average seek, write (msec typical) <9.0
Startup current (typical) 12V (peak) 2.6 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature 0° to 60°C (operating)

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

Relative humidity 5% to 90% (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 (Gs max at 2 msec) 63
Non-Operational Shock (Gs max at 2 msec) 350 Gs
Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6

12V ± 10%

–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.)

22–350 Hz: 0.5 Gs
350–500 Hz:: 0.25 Gs

10 Barracuda 7200.9 Serial ATA Product Manual, Rev. D

Drive specification ST3250624AS ST3250824AS ST3200827AS

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

Drive acoustics, sound power (bels)
Idle** 2.7 (typical)

Performance seek 3.4 (typical)

Nonrecoverable read errors 1 per 10
Annualized Failure Rate (AFR) 0.34%
Warranty 5 years on distribution units.

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

Supports Hotplug operation per SATA II
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 activity may occur according to the S.M. A. R.T. specification, which may increase acoustic and

power to operational levels.

22–350 Hz: 5.0 Gs
350–500 Hz:: 1.0 Gs

2.9 (max)

3.6 (max)

14

bits read

To determine the warranty for a specific drive, use a web browser to access
the following web page:
www.seagate.com/support/service/
From this page, click on the “Verify Your Warranty” link. You will be asked to
provide the drive serial number, model number (or part number) and country of
purchase. The system will display the warranty information for your drive.

50,000

Yes

Barracuda 7200.9 Serial ATA Product Manual, Rev. D 11

Table 5: Drive specifications summary for 160 Gbyte models

Drive specification ST3160812AS ST3160212AS

Formatted Gbytes (512 bytes/sector)* 160
Guaranteed sectors 312,581,808
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (kbits/in max) 840.0
Track density, KTPI (ktracks/in avg.) 141.5
Areal density, (Gbits/in2 avg) 119.0
Spindle speed (RPM) 7,200
Internal data transfer rate (Mbits/sec max) 867.2
Sustained data transfer rate OD (Mbytes/sec max) 83
I/O data-transfer rate (Mbytes/sec max) 300
ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes 2 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) 580 grams (1.28 lb.)
Average latency (msec) 4.16
Power-on to ready (sec max) <10.0 sec
Standby to ready (sec max) <10.0 sec
Track-to-track seek time (msec typical) <0.8 (read), <1.0 (write)
Average seek, read (msec typical) <8.0 (ST3160812AS & ST3160212AS models)

Average seek, write (msec typical) <9.0 (ST3160812AS & ST3160212A S models)

Startup current (typical) 12V (peak) 2.6 amps
Voltage tolerance (including noise) 5V ± 5%

Ambient temperature 0° to 60°C (operating)

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

Relative humidity 5% to 90% (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 (Gs max at 2 msec) 63
Non-Operational Shock (Gs max at 2 msec) 350 Gs

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

<9.9 ( & models)

<10.9 ( & models)

12V ± 10%

–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.)

12 Barracuda 7200.9 Serial ATA Product Manual, Rev. D