Seagate ST3400632AS, ST3400832AS, ST3200826AS, ST3250623AS, ST3250310ASIM User Manual

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Seagate ST3400632AS, ST3400832AS, ST3200826AS, ST3250623AS, ST3250310ASIM User Manual

Product Manual

Barracuda 7200.8 Serial ATA

ST3400832AS

ST3400632AS

ST3300831AS

ST3300631AS

ST3250823AS

ST3250623AS

ST3200826AS

100325576 Rev. F August 2007

©2006-2007, Seagate Technology LLC All rights reserved. Publication number: 100325576, Rev. F

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. Quantitative usage examples for various applications are for illustrative purposes. Actual quantities will vary based on various factors, including file size, file format, features and application software. Seagate reserves the right to change, without notice, product offerings or specifications.

 

 

 

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

 

 

2.2.1

LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

 

2.3

Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10

 

2.4

Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

 

2.5

Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

11

 

2.6

Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

 

2.7

Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

12

 

2.8

Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

 

 

2.8.1

Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13

 

 

2.8.2

Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

 

 

2.8.3

Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

 

 

2.8.4

Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

 

2.9

Environmental specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

 

2.9.1

Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

 

2.9.2

Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

 

2.9.3

Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

 

2.9.4

Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

 

2.9.5

Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

16

 

 

2.9.6

Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

 

2.10

Acoustics

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17

 

2.11

Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

 

2.12

Reliability

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

 

2.13

Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19

 

 

2.13.1

Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19

 

 

2.13.2

Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19

 

 

2.13.3

FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

 

2.14

Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

 

2.15

Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

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

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

i

ii

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

List of Figures

Figure 1. Typical 5V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 2. Typical 12V startup and operation current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

iii

1.0Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate Barracuda® 7200.8 Serial ATA model drives:

Barracuda 7200.8 Serial ATA

ST3400832AS

ST3400632AS

ST3300831AS

ST3300631AS

ST3250823AS

ST3250623AS

ST3200826AS

These drives provide the following key features:

7,200 RPM spindle speed.

8 Mbyte buffer (ST3400832AS, ST3300831AS, ST3250823AS, and ST3200826AS models).

16 Mbyte buffer (ST3400632AS, ST3300631AS, and ST3250623AS models).

High instantaneous (burst) data-transfer rates (up to 150 Mbytes per second).

Tunneling Magnetoresistive (TMR) recording heads provide 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.

300 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 7200.8 Serial ATA Product Manual, Rev. F

1

1.1About 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 7200.8 Serial ATA Product Manual, Rev. F

2.0Drive 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 ST3400832AS, ST3400632AS, ST3300831AS, ST3300631AS, ST3250823AS, ST3250623AS and ST3200826AS models.

2.1Specification summary tables

The specifications listed in tables 1, 2, and 3 are for quick reference. For details on specification measurement or definition, see the appropriate section of this manual.

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

3

Table 1:

Drive specifications for 400 Gbyte models

 

 

 

 

 

 

 

Drive specification

ST3400832AS

 

ST3400632AS

 

 

 

 

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 in BPI (bits/inch max)

763,000

 

 

 

 

 

 

Track density TPI (tracks/inch avg)

120,000

 

 

 

 

 

 

Areal density (Mbits/inch2 avg)

91,560

 

 

Spindle speed (RPM)

7,200

 

 

 

 

 

 

Internal data transfer rate (Mbytes/sec max)

95

 

 

 

 

 

 

Sustained transfer rate OD (Mbytes/sec)

65

 

 

 

 

 

 

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

150

 

 

 

 

 

ATA data-transfer modes supported

PIO modes 0–4

 

 

 

Multiword DMA modes 0–2

 

 

Ultra DMA modes 0–6

 

 

 

 

SATA data-transfer modes supported

1.5 Gbits/sec

 

 

 

 

 

Cache buffer

 

8 Mbytes

 

16 Mbytes

 

 

 

 

 

Height (max)

 

26.11 mm (1.028 inches)

 

 

 

 

Width (max)

 

101.85 mm (4.010 inches)

 

 

Length (max)

146.99 mm (5.787 inches)

 

 

 

 

Weight (max) grams / lb.

635 / 1.39

 

 

 

 

 

 

Average latency (msec)

4.16

 

 

 

 

 

Power-on to ready (typical)

10 sec

 

 

 

 

Standby to ready (typical)

10 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)

2.8 amps

 

 

 

 

Voltage tolerance

5V ± 5%

 

(including noise)

12V ± 10%

 

 

 

 

Ambient temperature

0° to 60°C (op.)

 

 

 

–40° to 70°C (nonop.)

 

 

 

 

Temperature gradient

20°C (operating)

 

(°C per hour max)

30°C (nonoperating)

 

 

 

 

Relative humidity

5% to 90% (operating)

 

 

 

5% to 95% (nonoperating)

 

 

 

Relative humidity gradient

30% per hour max

 

 

 

 

 

 

4

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

Table 1:

Drive specifications for 400 Gbyte models

 

 

 

 

 

Drive specification

ST3400832AS

ST3400632AS

 

 

 

Wet bulb temperature

37.7 (operating)

 

(°C max)

 

40.0 (nonoperating)

 

 

 

 

 

 

 

Altitude, operating

–60.96 m to 3,048 m

 

 

 

(–200 ft to 10,000+ ft)

 

 

 

 

Altitude, nonoperating

–60.96 m to 12,192 m

 

(meters below mean sea level, max)

(–200 ft to 40,000+ ft)

 

 

 

 

Shock, operating (max at 2 msec)

63 Gs

 

 

 

 

Shock, nonoperating (max at 2 msec)

300 Gs

 

 

 

Vibration, operating

5–22 Hz: Limited displacement

 

 

23–350 Hz: 0.5 G acceleration

 

 

Vibration, nonoperating

5–22 Hz: Limited displacement

 

 

23–350 Hz: 5 Gs acceleration

 

 

 

Drive acoustics, sound power (bels)

 

 

Idle**

 

2.8 (typical)

 

 

 

3.4 (max)

 

 

 

 

Performance seek

3.7 (typical)

 

 

 

3.9 (max)

 

 

 

 

Nonrecoverable read errors

1 per 1014 bits read

 

Annualized Failure Rate (AFR)

0.34%

 

 

 

 

 

Service life

 

5 Years

 

 

 

 

Warranty

 

5 years on distribution units.

 

 

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 War-

 

 

ranty” 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.

 

 

 

Contact start-stop cycles

50,000

 

(25°C, 50% relative humidity)

 

 

 

 

 

Supports Hotplug operation per SATA II specification

Yes

 

 

 

 

 

*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 7200.8 Serial ATA Product Manual, Rev. F

5

Table 2:

Drive specifications for 300 Gbyte models

 

 

 

 

Drive specification

ST3300831AS

ST3300631AS

 

 

 

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 in BPI (bits/inch max)

763,000

 

 

 

 

Track density TPI (tracks/inch avg)

120,000

 

 

 

 

Areal density (Mbits/inch2 avg)

91,560

 

Spindle speed (RPM)

7,200

 

 

 

 

Internal data transfer rate (Mbytes/sec max)

95

 

 

 

 

Sustained transfer rate OD (Mbytes/sec)

65

 

 

 

 

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

150

 

 

 

 

ATA data-transfer modes supported

PIO modes 0–4

 

 

 

Multiword DMA modes 0–2

 

 

 

Ultra DMA modes 0–6

 

 

 

 

SATA data-transfer modes supported

1.5 Gbits/sec

 

 

 

 

 

Cache buffer

 

8 Mbytes

16 Mbytes

 

 

 

 

Height (max)

 

26.11 mm (1.028 inches)

 

 

 

 

 

Width (max)

 

101.85 mm (4.010 inches)

 

 

 

 

Length (max)

146.99 mm (5.787 inches)

 

 

 

 

Weight (max) grams / lb.

635 / 1.39

 

 

 

 

Average latency (msec)

4.16

 

 

 

 

Power-on to ready (typical)

10 sec

 

 

 

 

Standby to ready (typical)

10 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)

2.8 amps

 

 

 

 

Voltage tolerance

5V ± 5%

 

(including noise)

12V ± 10%

 

 

 

 

Ambient temperature

0° to 60°C (op.)

 

 

 

–40° to 70°C (nonop.)

 

 

 

 

Temperature gradient

20°C (operating)

 

(°C per hour max)

30°C (nonoperating)

 

 

 

 

Relative humidity

5% to 90% (operating)

 

 

 

5% to 95% (nonoperating)

 

 

 

 

Relative humidity gradient

30% per hour max

 

 

 

 

 

6

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

Table 2:

Drive specifications for 300 Gbyte models

 

 

 

 

 

Drive specification

ST3300831AS

 

ST3300631AS

 

 

 

 

Wet bulb temperature

37.7 (operating)

 

(°C max)

 

40.0 (nonoperating)

 

 

 

 

 

 

 

Altitude, operating

–60.96 m to 3,048 m

 

 

 

(–200 ft to 10,000+ ft)

 

 

 

 

Altitude, nonoperating

–60.96 m to 12,192 m

 

(meters below mean sea level, max)

(–200 ft to 40,000+ ft)

 

 

 

 

Shock, operating (max at 2 msec)

63 Gs

 

 

 

 

Shock, nonoperating (max at 2 msec)

300 Gs

 

 

 

Vibration, operating

5–22 Hz: Limited displacement

 

 

23–350 Hz: 0.5 G acceleration

 

 

Vibration, nonoperating

5–22 Hz: Limited displacement

 

 

23–350 Hz: 5 Gs acceleration

 

 

 

 

 

Drive acoustics, sound power (bels)

 

 

 

Idle**

 

2.8 (typical)

 

 

 

3.4 (max)

 

 

 

 

Performance seek

3.7 (typical)

 

 

 

3.9 (max)

 

 

 

 

Nonrecoverable read errors

1 per 1014 bits read

 

Annualized Failure Rate (AFR)

0.34%

 

 

 

 

 

 

Service life

 

5 Years

 

 

 

 

 

Warranty

 

5 years on distribution units.

 

 

 

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 sys-

 

 

tem will display the warranty information for your drive.

 

 

 

 

Contact start-stop cycles

50,000

 

 

(25°C, 50% relative humidity)

 

 

 

 

 

 

Supports Hotplug operation per SATA II specification

Yes

 

 

 

 

 

 

*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 7200.8 Serial ATA Product Manual, Rev. F

7

Table 3:

Drive specifications for 250 and 200 Gbyte models

 

 

 

 

 

 

 

Drive specification

ST3250823AS

 

ST3250623AS

ST3200826AS

 

 

 

 

 

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 in BPI (bits/inch max)

763,000

 

 

 

 

 

 

 

 

Track density TPI (tracks/inch avg)

120,000

 

 

 

 

 

 

 

 

Areal density (Mbits/inch2 avg)

91,560

 

 

 

Spindle speed (RPM)

7,200

 

 

 

 

 

 

 

 

Internal data transfer rate (Mbytes/sec max)

95

 

 

 

 

 

 

 

 

Sustained transfer rate OD (Mbytes/sec)

65

 

 

 

 

 

 

 

 

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

150

 

 

 

 

 

 

 

ATA data-transfer modes supported

PIO modes 0–4

 

 

 

 

Multiword DMA modes 0–2

 

 

 

Ultra DMA modes 0–6

 

 

 

 

 

SATA data-transfer modes supported

1.5 Gbits/sec

 

 

 

 

 

 

 

Cache buffer

 

8 Mbytes

 

16 Mbytes

8 Mbytes

 

 

 

 

 

Height (max)

 

26.11 mm (1.028 inches)

 

 

 

 

 

Width (max)

 

101.85 mm (4.010 inches)

 

 

 

 

Length (max)

146.99 mm (5.787 inches)

 

 

 

 

 

 

Weight (max) grams / lb.

635 / 1.39

 

 

 

 

 

 

 

 

Average latency (msec)

4.16

 

 

 

 

 

 

 

Power-on to ready (typical)

10 sec

 

 

 

 

 

 

Standby to ready (typical)

10 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)

2.8 amps

 

 

 

 

 

 

Voltage tolerance

5V ± 5%

 

 

(including noise)

12V ± 10%

 

 

 

 

 

 

Ambient temperature

0° to 60°C (op.)

 

 

 

 

–40° to 70°C (nonop.)

 

 

 

 

 

 

Temperature gradient

20°C (operating)

 

 

(°C per hour max)

30°C (nonoperating)

 

 

 

 

 

Relative humidity

5% to 90% (operating)

 

 

 

5% to 95% (nonoperating)

 

 

 

 

 

Relative humidity gradient

30% per hour max

 

 

 

 

 

 

 

 

8

Barracuda 7200.8 Serial ATA Product Manual, Rev. F

Table 3:

Drive specifications for 250 and 200 Gbyte models

 

 

 

 

 

 

 

Drive specification

ST3250823AS

 

ST3250623AS

ST3200826AS

 

 

 

 

 

Wet bulb temperature

37.7 (operating)

 

 

(°C max)

 

40.0 (nonoperating)

 

 

 

 

 

 

 

 

 

 

Altitude, operating

–60.96 m to 3,048 m

 

 

 

 

(–200 ft to 10,000+ ft)

 

 

 

 

 

 

Altitude, nonoperating

–60.96 m to 12,192 m

 

 

(meters below mean sea level, max)

(–200 ft to 40,000+ ft)

 

 

 

 

 

 

Shock, operating (max at 2 msec)

63 Gs

 

 

 

 

 

 

Shock, nonoperating (max at 2 msec)

300 Gs

 

 

 

 

 

Vibration, operating

5–22 Hz: Limited displacement

 

 

 

23–350 Hz: 0.5 G acceleration

 

 

 

 

Vibration, nonoperating

5–22 Hz: Limited displacement

 

 

 

23–350 Hz: 5 Gs acceleration

 

 

 

 

 

 

Drive acoustics, sound power (bels)

 

 

 

 

Idle**

 

2.8 (typical)

 

 

 

 

3.4 (max)

 

 

 

 

 

 

Performance seek

3.7 (typical)

 

 

 

 

3.9 (max)

 

 

 

 

 

 

Nonrecoverable read errors

1 per 1014 bits read

 

 

Annualized Failure Rate (AFR)

0.34%

 

 

 

 

 

 

 

 

Service life

 

5 Years

 

 

 

 

 

 

Warranty

 

5 years on distribution units.

 

 

 

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 war-

 

 

ranty information for your drive.

 

 

 

 

 

 

Contact start-stop cycles

50,000

 

 

 

(25°C, 50% relative humidity)

 

 

 

 

 

 

 

 

Supports Hotplug operation per SATA II specification

Yes

 

 

 

 

 

 

 

 

*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 7200.8 Serial ATA Product Manual, Rev. F

9

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