Seagate Barracuda 7200.7 SATA User manual

Brand: Seagate

Model: Barracuda 7200.7 SATA

Category: Internal hard drives

Type: User manual

Barracuda 7200.7 Serial ATA

ST3200822AS

ST3160827AS

ST3160023AS

ST3160021AS

ST3120827AS

ST3120026AS

ST3120022AS

ST380817AS

ST380013AS

ST380011AS

ST340111AS

ST340014AS

Barracuda 7200.7 Serial ATA

ST3200822AS

ST3160827AS

ST3160023AS

ST3160021AS

ST3120827AS

ST3120026AS

ST3120022AS

ST380817AS

ST380013AS

ST380011AS

ST340111AS

ST340014AS

Publication number: 100270024, Rev. N

September 2005

Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC.

SeaTools, SeaFONE, SeaBOARD, SeaTDD, and the Wave logo are either registered trade-

marks or trademarks of Seagate Technology LLC. Other product names are registered trade-

marks or trademarks of their owners.

Seagate reserves the right to change, without notice, product offerings or specifications. No

part of this publication may be reproduced in any form without written permission of Seagate

Technology LLC.

Barracuda 7200.7 Serial ATA Product Manual, Rev. N iii

Contents

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

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

1.2 Native Command Queuing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

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

2.1 Specification summary table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.4 Physical organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.5.1 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.7 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.8.2 Deferred spinup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.8.3 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.4 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.8.5 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.9.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.9.4 Altitude. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.9.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.9.6 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.12 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.14 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

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

iv Barracuda 7200.7 Serial ATA Product Manual, Rev. N

Barracuda 7200.7 Serial ATA Product Manual, Rev. N v

List of Figures

Figure 1. Typical 5V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 2. Typical 12V startup and operation current profile. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Figure 3. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 4. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Figure 5. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 1

1.0 Introduction

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

Barracuda

7200.7 Serial ATA model drives:

Table 1: Barracuda 7200.7 Serial ATA models

[1] OEM model that may support NCQ

These drives provide the following key features:

• 7,200 RPM spindle speed

• 8 Mbyte buffer (ST3200822AS, ST3160827AS, ST3160023AS, ST3120827AS, ST3120026AS,

ST380817AS, ST380013AS and ST340111AS models)

• 2 Mbyte buffer (ST3160021AS, ST3120022AS, ST380011AS, and ST340014AS models)

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

• Giant magnetoresistive (GMR) recording heads and EPRML technology, provide the drives with increased

areal density.

• State-of-the-art cache and on-the-fly error-correction algorithms.

• 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.

• The 3D Defense System™, which includes Drive Defense, Data Defense and Diagnostic Defense, offers the

industry’s most comprehensive protection for disc drives.

• Support for S.M.A.R.T. drive monitoring and reporting.

• Support for Read Multiple and Write Multiple commands.

• Native Command Queing enabled on some models.

OEM models

Distribution models

not supporting NCQ

Distribution models

supporting NCQ

ST3200822AS

ST380013AS

[1]

ST3200822AS ST3160827AS

ST3160023AS

[1]

ST380011AS

[1]

ST3160023AS ST3120827AS

ST3160021AS

[1]

ST340111AS

[1]

ST3120026AS ST380817AS

ST3120026AS

[1]

ST340014AS

[1]

ST380013AS

ST3120022AS

[1]

2 Barracuda 7200.7 Serial ATA Product Manual, Rev. N

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 jump-

ers 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 regis-

ters, referred to as the Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For addi-

tional 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 http://www.serialata.com.

1.2 Native Command Queuing

Native Command Queuing (NCQ) is among the advanced features introduced in the Serial ATA II: Extensions

to Serial ATA 1.0 Specification. NCQ is a powerful technology designed to increase performance and endur-

ance by allowing the drive to internally optimize the execution order of workloads. Intelligent reordering of com-

mands within the drive’s internal command queue helps improve performance of queued workloads by

minimizing mechanical positioning latencies on the drive.

Operating systems such as Microsoft Windows and Linux are increasingly taking advantage of multi-threaded

software or processor-based Hyper-Threading Technology. These features have a high potential to create

workloads where multiple commands are outstanding to the drive at the same time. By utilizing NCQ, the

potential disc performance is increased significantly for these workloads.

Native Command Queuing achieves high performance and efficiency through efficient command reordering. In

addition, there are three new capabilities that are built into the Serial ATA protocol to enhance NCQ perfor-

mance: racefree status return, interrupt aggregation, and First-Party DMA.

To learn more about NCQ, go to the Seagate Serial ATA resource site at:

www.seagate.com/products/interface/sata/.

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 3

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

ST3200822AS, ST3160827AS, ST3160023AS, ST3160021AS, ST3120827AS, ST3120026AS,

ST3120022AS, ST380817AS, ST380013AS, ST380011AS, ST340111AS and ST340014AS models.

2.1 Specification summary table

The specifications listed in this table are for quick reference. For details on specification measurement or defi-

nition, see the appropriate section of this manual.

Table 2: Drive specifications

Drive specification ST3200822AS

ST3160827AS

ST3160023AS

ST3160021AS

ST3120827AS

ST3120026AS

ST3120022AS

ST380817AS

ST380013AS

ST380011AS

ST340111AS

ST340014AS

Formatted Gbytes (512 bytes/sector)* 200 160 120 80 40

Guaranteed sectors 390,721,968 312,581,808 234,441,648 156,301,488 78,165,360

Bytes per sector 512

Default sectors per track 63

Default read/write heads 16

Default cylinders 16,383

Physical read/write heads 4 4 3 2 1

Discs 2 2 2 1 1

Recording density in BPI (bits/inch max) 671,500 595,000

Track density TPI (tracks/inch max) 98,000 94,600

Areal density (Gbits/inch

max) 68.5 56.3

Spindle speed (RPM) 7,200

Internal transfer rate (Mbytes/sec max) 85.4

Sustained transfer rate OD (Mbytes/sec) 58

I/O data transfer rate (Mbytes/sec max) 150

ATA data-transfer modes supported

SATA 1.0, SATA II

PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6

Cache buffer

8 Mbytes: ST3200822AS, ST3160827AS, ST3160023AS, ST3120827AS,

ST3120026AS, ST380817AS, ST380013AS and ST340111AS

2 Mbytes: ST3160021AS, ST3120022AS, ST380011AS, and ST340014AS

Height (max) 26.035 mm (1.028 inches)

Width (max) 101.6 mm (4.000 inches)

Length (max) 146.99 mm (5.787 inches)

Weight (typical) 635 grams (1.4 lb)

4 Barracuda 7200.7 Serial ATA Product Manual, Rev. N

Average latency (msec) 4.16

Power-on to ready (typical) 10 sec

Standby to ready (typical) 10 sec

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

Track-to-track seek time (msec typical) <1.0 (read), <1.2 (write)

Average seek, read (msec typical) 8.5

Average seek, write (msec typical) 9.5

Seek power (typical)

See Table 4 and Table 5 on page 8.

Operating power (typical)

Idle mode (typical)

Standby mode (typical)

Sleep mode

Voltage tolerance

(including noise)

5V ± 5%

12V ± 10%

Ambient temperature

5° to 55°C (op.)

–40° to 70°C (nonop.)

0° to 60°C (op.)

–40° to 70°C (nonop.)

Temperature gradient

(°C per hour max)

20°C (operating)

30°C (nonoperating)

Relative humidity

5% to 90% (operating)

5% to 95% (nonoperating)

Relative humidity gradient 30% per hour max

Wet bulb temperature

(°C max)

33 (operating)

40 (nonoperating)

Altitude, operating

–60.96 m to 3,048 m

(–200 ft to 10,000

+ ft)

Altitude, nonoperating

(meters below mean sea level, max)

–60.96 m to 12,192 m

(–200 ft to 40,000

+ ft)

Shock, operating (Gs max at 2 msec) 63

Shock, nonoperating (Gs max at 2 msec) 350 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: 5.0 Gs

Drive acoustics, sound power (bels)

Idle*

<2.5 (typical)

2.7 (max)

<2.2 (typ)

2.4 (max)

Performance seek

3.4 (typical)

3.7 (max)

3.1 (typical)

3.5 (max)

Nonrecoverable read errors 1 per 10

bits read

Mean time between failures

(power-on hours)

600,000

Service life 5 years

Warranty

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

ing 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 countyr of purchase. The

system will display the warranty information for your drive.

Table 2: Drive specifications

Drive specification ST3200822AS

ST3160827AS

ST3160023AS

ST3160021AS

ST3120827AS

ST3120026AS

ST3120022AS

ST380817AS

ST380013AS

ST380011AS

ST340111AS

ST340014AS

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 5

*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.

2.2 Formatted capacity

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

and formatting.

2.2.1 LBA mode

When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1,

where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-

bit addressing support of drives with capacities over 137 Gbytes.

2.3 Default logical geometry

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.

Contact start-stop cycles

(25°C, 40% relative humidity)

50,000

Supports Hotplug operation per SATA II

specification

Yes

Model Formatted capacity* Guaranteed sectors Bytes per sector

ST3200822AS 200 Gbytes 390,721,968 512

ST3160827AS

ST3160023AS

ST3160021AS

160 Gbytes 312,581,808 512

ST3120827AS

ST3120026AS

ST3120022AS

120 Gbytes 234,441,648 512

ST380817AS

ST380013AS

ST380011AS

80 Gbytes 156,301,488 512

ST340111AS

ST340014AS

40 Gbytes 78,165,360 512

Cylinders Read/write heads Sectors per track

16,383 16 63

Table 2: Drive specifications

Drive specification ST3200822AS

ST3160827AS

ST3160023AS

ST3160021AS

ST3120827AS

ST3120026AS

ST3120022AS

ST380817AS

ST380013AS

ST380011AS

ST340111AS

ST340014AS

6 Barracuda 7200.7 Serial ATA Product Manual, Rev. N

2.4 Physical organization

2.5 Recording and interface technology

2.5.1 Physical characteristics

Drive model Read/write heads Number of discs

ST3200822AS, ST3160827AS, ST3160023AS and ST3160021AS 4 2

ST3120827AS, ST3120026AS and ST3120022AS 3 2

ST380817AS, ST380013AS and ST380011AS 2 1

ST340111AS and ST340014AS 1 1

Interface Serial ATA (SATA)

Recording method 16/17 EPRML

Recording density BPI (bits/inch max) 595,000 (671,500 on ST3200822AS model)

Track density TPI (tracks/inch max) 94,600 (98,000 on ST3200822AS model)

Areal density (Gbits/inch

max) 56.3 (68.5 on ST3200822AS model)

Spindle speed (RPM) (± 0.2%) 7,200

Maximum Internal transfer rate (Mbytes/sec) 85.4

Sustained transfer rate OD (Mbytes/sec max) 58

I/O data-transfer rate (Mbytes/sec max) 150 (SATA 1.0)

Interleave 1:1

Cache buffer

ST3200822AS, ST3160827AS, ST3160023AS, ST3120827AS,

ST3120026AS, ST380817AS, ST380013AS and ST340111AS

ST3160021AS, ST3120022AS, ST380011AS, and ST340014AS

8 Mbytes

2 Mbytes

Drive specification

Maximum height

(mm)

(inches)

26.035

1.028

Maximum width

(mm)

(inches)

101.6

4.00

Maximum length

(mm)

(inches)

146.99

5.787

Typical weight

(grams)

(pounds)

635

1.4

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 7

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.

*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

2.8 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 20.

2.8.1 Power consumption

Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on

an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient

temperature.

• Spinup power

Spinup power is measured from the time of power-on to the time that the drive spindle reaches operating

speed.

• Seek mode

During seek mode, the read/write actuator arm moves toward a specific position on the disc surface and

does not execute a read or write operation. Servo electronics are active. Seek mode power represents the

worst-case power consumption, using only random seeks with read or write latency time. This mode is not

typical and is provided for worst-case information.

• Read/write power and current

Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-msec

delay, then a 16-sector read followed by a 32-msec delay.

Table 3: Typical seek times

*Typical seek times (msec) Read Write

Track-to-track <1.0 <1.2

Average 8.5 9.5

Average latency 4.16 4.16

Power-on to Ready (sec) 10 (max)

Standby to Ready (sec) 10 (max)

Ready to spindle stop (sec) 10 (max)

8 Barracuda 7200.7 Serial ATA Product Manual, Rev. N

• Operating power and current

Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each

10 reads) and 20 percent drive idle mode.

• Idle mode power

Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in

a random track location.

• Standby mode

During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/

write electronics are in power-down mode.

[1] NCQ may not be enabled during power measurements.

[2] 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.

Table 4: DC power requirements (example of 160GB models supporting NCQ

[1]

)

Power dissipation (watts)

Average

(watts, 25° C)

5V typ

amps

12V typ amps

Spinup — — 2.8 (peak)

Idle 7.5 0.487 0.422

Idle (with offline activity)

[2]

9.3 0.875 0.41

Operating (40% r/w, 40% seek, 20% inop.) 12.0 0.631 0.737

Seeking 12.5 0.405 0.873

Standby/Sleep 1.0 0.185 0.006

Table 5: DC power requirements (example of 160GB and 200GB models not supporting NCQ)

Power dissipation (watts)

Average

(watts, 25° C)

5V typ

amps

12V typ amps

Spinup — — 2.8 (peak)

Idle 7.5 0.482 0.424

Idle (with offline activity)

[2]

9.3 0.587 0.53

Operating (40% r/w, 40% seek, 20% inop.) 12.1 0.638 0.739

Seeking 12.5 0.412 0.87

Standby/Sleep 2.0 0.367 0.014

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 9

2.8.1.1 Typical current profiles

Figure 1. Typical 5V startup and operation current profile

Figure 2. Typical 12V startup and operation current profile

2.8.2 Deferred spinup

Barracuda 7200.7 Serial ATA drives provide a deferred spinup feature which storage subsystem controllers

can use to sequence disc drive initialization. This is beneficial to systems which include multiple Serial ATA

hard disc drives because it allows subsystem controllers to stagger the spinup of each drive to accommodate

available power supply current. This feature does not impact time-to-ready in typical desktop systems.

To accommodate the deferred spinup of multiple disc drives in an enclosure, Barracuda 7200.7 Serial ATA disc

drives will spin up only after power is applied to the drive and after successful PHY (Physical layer) initializa-

tion. PHY initialization occurs after the PHY enters the DP7:DR_Ready state. This state is reached after a suc-

0.0 2 4 6 8 10 12 14 16

0.0

0.25

0.50

0.75

1.00

1.25

mps

Seconds

1.50

+5 Volt Current during spindle start — Typical Amperes

0.0 2 4 6 8 10 12 14 16

0.0

0.4

0.8

1.2

1.6

2.0

mps

Seconds

+12 Volt Current during spindle start — Typical Amperes

2.4

10 Barracuda 7200.7 Serial ATA Product Manual, Rev. N

cessful exchange of Out-Of-Band (OOB) signals with a functional host-side Serial ATA port. In desktop

systems, SATA transceivers should initialize OOB as soon as power comes ready to guarantee the drive spins

up quickly. Seagate disc drives will not spin up without an operational host-side Serial ATA transceiver.

Additional details

Upon system power up, PHY communication is initiated with a COMRESET signal, which is generated by the

host-side transceiver. COMRESET is followed by a COMINIT signal generated by the disc drive transceiver.

COMRESET and COMINIT are followed by an exchange of COMWAKE signals and Align primitives. The disc

drive will spin up after the successful exchange of Align primitives cause the PHY to come ready.

For more details, refer to:

• Section 6.8 of the Serial ATA 1.0 High-Speed Serialized AT Attachment specification

• Section 6.2 of the Serial ATA II: Extensions to Serial ATA 1.0 specification

• SATA 1.0 design guides

Note. These specifications and guides are available on the Serial ATA web site (www.serialata.org).

2.8.3 Conducted noise

Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on

the +12 volt line or an equivalent 15-ohm resistive load on the +5 volt line.

• Using 12-volt power, the drive is expected to operate with a maximum of 120 mV peak-to-peak square-wave

injected noise at up to 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.

2.8.4 Voltage tolerance

Voltage tolerance (including noise):

5V ± 5%

12V ± 10%

Barracuda 7200.7 Serial ATA Product Manual, Rev. N 11

2.8.5 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:

• 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.

2.9 Environmental specifications

2.9.1 Ambient temperature

Ambient temperature is defined as the temperature of the environment immediately surrounding the drive.

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

standard models, or 64°C (147°F) within the operating ambient conditions for ST3200822AS model. Recom-

mended measurement locations are shown in See Figure 5 on page 22 .

Above 1,000 feet (305 meters), the maximum temperature is derated linearly to 112°F (44°C) at 10,000 feet

(3,048 meters).

Operating 0° to 60°C (32° to 140°F) for standard models

5° to 55°C (41° to 131°F) for ST3200822AS model

Nonoperating –40° to 70°C (–40° to 158°F)

Power modes Heads Spindle Buffer

Active Tracking Rotating Enabled

Idle Tracking Rotating Enabled

Standby Parked Stopped Enabled

Sleep Parked Stopped Disabled

12 Barracuda 7200.7 Serial ATA Product Manual, Rev. N

2.9.2 Temperature gradient

2.9.3 Humidity

2.9.3.1 Relative humidity

2.9.3.2 Wet bulb temperature

2.9.4 Altitude

2.9.5 Shock

All shock specifications assume that the drive is mounted securely with the input shock applied at the drive

mounting screws. Shock may be applied in the X, Y or Z axis.

2.9.5.1 Operating shock

These drives comply with the performance levels specified in this document when subjected to a maximum

operating shock of 63 Gs based on half-sine shock pulses of 2 msec. Shocks should not be repeated more

than two times per second.

2.9.5.2 Nonoperating shock

The nonoperating shock level that the drive can experience without incurring physical damage or degradation

in performance when subsequently put into operation is 350 Gs based on a nonrepetitive half-sine shock pulse

of 2 msec duration.

Operating 20°C per hour (68°F per hour max), without condensation

Nonoperating 30°C per hour (86°F per hour max)

Operating 5% to 90% noncondensing (30% per hour max)

Nonoperating 5% to 95% noncondensing (30% per hour max)

Operating 33°C (91.4°F max)

Nonoperating 40.0°C (104°F max)

Operating –60.96 m to 3,048 m (–200 ft to 10,000+ ft)

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

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Seagate Barracuda 7200.7 SATA User manual

Brand: Seagate

Model: Barracuda 7200.7 SATA

Category: Internal hard drives

Type: User manual

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Seagate Barracuda 7200.7 SATA User manual

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