Seagate ST31000340SV, ST3750330SV, ST3250310SV, ST3500320SV User Manual

Product Manual

SV35.3 Series Serial ATA

ST31000340SV ST3750330SV ST3500320SV ST3250310SV

100480760 Rev. B February 2008

Revision history

Revision Date Sheets affected or comments

Rev. A 10/29/07 Initial release. Rev. B 02/13/08 4, 6-7, 9-10, 12 and 14.

Copyright © 2007-2008 Seagate Technology LLC. All rights reserved. Printed in U.S.A. Publication number: 100480760, Rev. B February 2008 Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC

in the United States and/or other countries. SV3 5.3 Series, SeaTools and SeaTDD are either trademarks or registered trademarks of Seagate T echnology LLC or one of its affiliated companies in the United States and/or other countr ies. All other tr ademarks or regi stered trademar ks are the prope rty of their respecti ve owners.

When referring to har d drive capacity, one gigabyte, or GB, equa ls one billio n bytes and o ne terabyte, or TB, equals one trillion bytes. Your computer’s operatin g syst em may us e a different stand ard of measu re ment and report a lower c apacity. In addition, some of t he liste d capacity i s used for formattin g and other functions, and thus will not be available for data storage. Seagate res erves 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 Drive case temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

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

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

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

2.9.5 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.13.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

4.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.0 Seagate Technology support services. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

SV35.3 Series Serial ATA Product Manual, Rev. B i

ii SV35.3 Series Serial ATA Product Manual, Rev. B

List of Figures

Figure 1. Serial ATA connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 2. Attaching SATA cabling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 3. Mounting dimensions—top, side and end view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

SV35.3 Series Serial ATA Product Manual, Rev. B iii

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following Seagate SV35.3 Series

ST31000340SV ST3750330SV ST3500320SV ST3250310SV These drives provide the following key features:

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

• Perpendicular recording heads and EPRML technology, for 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.

Serial ATA model drives:

SV35.3 Series Serial ATA Product Manual, Rev. B 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 AT A easy by providing legacy software support. Serial ATA was designed to allow you t o install a Serial ATA host adapter and Serial ATA disc drive in your curr ent system and expect all of your existing applications to work as normal.

The Serial ATA interface co nnects each disc drive in a point-to-point c onfiguration with the Serial ATA host adapter. There is no master/slave relationship with Seria l ATA devices like there is with para llel 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 repres ented 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 driv e shar e the funct ion of emul ating parall el ATA device beh avior 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 th e Shadow Register Block. All Se rial ATA devic es beh ave l ik e De vi ce 0 de vi c es. F or 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 SV35.3 Series Serial ATA Product Manual, Rev. B

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:

ST31000340SV ST3750330SV ST3500320SV ST3250310SV

2.1 Specification summary tables

The specifications li sted in the following tables are fo r quick reference. For details on specification m easurement or definition, see the appropriate section of this manual.

SV35.3 Series Serial ATA Product Manual, Rev. B 3

Table 1: Drive specifications summary for 1000, 750 and 500 Gbyte models

Drive specification ST31000340SV ST3750330SV ST3500320SV

Formatted capacity (512 bytes/sector)* 1000 Gbytes 750 Gbytes 500 Gbytes Guaranteed sectors 1,953,525,168 1,465,149,168 976,773,168 Heads 8 6 4 Discs 4 3 2 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density 1,090 kbits/in max Track density 150 ktracks/in avg Areal density 164 Gbits/in2 avg Internal data transfer rate 1,287 Mbits/sec max Sustained data transfer rate OD 105 Mbytes/sec max I/O data-transfer rate 300 Mbytes/sec max ATA data-transfer modes supported PIO modes 0–4

Cache buffer 32 Mbytes Height (max) 26.11 mm (1.028 inches) Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches Length (max) 146.99 mm (5.787 inches) Weight (typical) 677 grams 633 grams 544 grams Power-on and Standby to ready 17 sec max 15 sec max 13 sec max Track-to-track seek time <0.5 msec typical read;

Average seek, read <16.0 msec typical Average seek, write <16.5 msec typical Startup current (typical) 12V (peak) 2.0 amps Voltage tolerance (including noise) 5V +10% / -7.5%

Operating temperature (Drive Case) 0° to 70°C Non-operating temperature (Drive Case) –40° to 70°C Temperature gradient 20°C per hour max (operating)

Relative humidity 5% to 90% (operating)

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

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating (below mean sea level, max)

Operational Shock 63 Gs at 2 msec max Non-Operational Shock 300 Gs at 2 msec max Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

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

<1.5 msec typical write

12V +10% / -7.5%

30°C per hour max (nonoperating)

5% to 95% (nonoperating)

40.0°C max (nonoperating)

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

(–200 ft. to 40,000+ ft.)

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

4 SV35.3 Series Serial ATA Product Manual, Rev. B

Drive specification ST31000340SV ST3750330SV ST3500320SV

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

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

CE Seek 2.8 bels (typical)

Nonrecoverable read errors 1 per 10 Annualized Failure Rate (AFR) 0.80% Warranty To determine the warranty for a specific drive, use a web browser to access the follow-

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

Serial ATA Revision 2.5 specification

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

and formatting.

**During periods of drive idle, some offline 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: 2.0 Gs

2.9 bels (max)

3.0 bels (max)

bits read

ing web page: http://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.

Yes

SV35.3 Series Serial ATA Product Manual, Rev. B 5

Table 2: Drive specifications summary for 250 Gbyte models

Drive specification ST3250310SV

Formatted capacity (512 bytes/sector)* 250 Gbytes Guaranteed sectors 488,397,168 Heads 2 Discs 1 Bytes per sector 512 Default sectors per track 63 Default read/write heads 16 Default cylinders 16,383 Recording density 1,049 kbits/in max Track density 155 ktracks/in avg Areal density 163 Gbits/in2 avg Internal data transfer rate 1,212 Mbits/sec max Sustained data transfer rate OD 106 Mbytes/sec max I/O data-transfer rate 300 Mbytes/sec max ATA data-transfer modes supported PIO modes 0–4

Cache buffer 8 Mbytes Height (max) 20.20 mm (0.794 inches) Width (max) 101.6 mm (4.000 inches) +/- 0.010 inches Length (max) 146.99 mm (5.787 inches) Weight (typical) 380 grams (0.838 lb.) Power-on and Standby to ready 15 sec max Track-to-track seek time <1.0 msec typical read;

Average seek, read <15.0 ms ec typical Average seek, write <16.0 msec typical Startup current (typical) 12V (peak) 2.0 amps Voltage tolerance (including noise) 5V ± 5%

Operating temperature (Drive Case) 0° to 75°C Nonoperating temperature (Drive Case) –40° to 75°C Temperature gradient (max) 20°C per hour max (operating)

Relative humidity 5% to 90% (operating)

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

Altitude, operating –60.96 m to 3,048 m

Altitude, nonoperating (below mean sea level, max)

Operational Shock 63 Gs at 2 msec max Non-Operational Shock 350 Gs at 2 msec max Vibration, operating 5–22 Hz: 0.25 Gs, Limited displacement

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

<1.2 msec ty p ical write

12V ± 10%

30°C per hour max (nonoperating)

5% to 95% (nonoperating)

40.0°C max (nonoperating)

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

(–200 ft. to 40,000+ ft.)

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

6 SV35.3 Series Serial ATA Product Manual, Rev. B

Drive specification ST3250310SV

Vibration, nonoperating 5–350 Hz: 5.0 Gs

Drive acoustics, sound power Idle** 2.5 bels (typical)

CE Seek Profile 2.6 bels (typical)

Nonrecoverable read errors 1 per 10 Annualized Failure Rate (AFR) 0.80% Warranty To determine the warranty for a specific drive, use a web browser to access the follow-

Contact start-stop cycles 50,000 at 25°C, 50% rel. humidity

Supports Hotplug operation per the Serial ATA Revision 2.5 specification

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

and formatting.

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

power to operational levels.

350–500 Hz: 1.0 Gs

2.8 bels (max)

bits read

ing web page: www.seagate.com/support/service/ From this page, click on the “V erif y Your Warranty” link. Y ou will be asked to provide the drive serial number, model number (or part number) and country of purchase. The sys tem will display the warranty information for your drive.

Yes

SV35.3 Series Serial ATA Product Manual, Rev. B 7

2.2 Formatted capacity

Model

ST31000340SV 1000 Gbytes 1,953,525,168 512

ST3750330SV 750 Gbytes 1,465,149,168 512

ST3500320SV 500 Gbytes 976,773,168 512

ST3250310SV 250 Gbytes 488,397,168 512

*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

2.2.1 LBA mode

When addressing these d rives in LBA mode, all bl ocks (sectors) are cons ecutively numbered fr om 0 to n–1, where n is the number of guaranteed sectors as defined above.

See Section 4.3.1, "Id enti fy Devic e co mma nd" (w ords 60 -6 1 a nd 1 00- 10 3) for a ddi tio nal in form a tio n ab out 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 d rives in LBA mode, all bl ocks (sectors) are cons ecutively numbered fr om 0 to n–1, where n is the number of guaranteed sectors as defined above.

8 SV35.3 Series Serial ATA Product Manual, Rev. B

2.4 Recording and interface technology

Models ST31000340SV, ST3750330SV & ST3500320SV ST3250310SV

Interface Serial ATA (SATA) Recording method Perpendicular Recording density (kbits/inch max) 1,090 1,049 Track density (ktracks/inch avg) 150 155 Areal density (Gbits/inch2 avg) 164 163 Internal data transfer rate (Mbits/sec max) 1,287 1,212 Sustained data transfer rate (Mbytes/sec max) 105 106 I/O data-transfer rate (Mbytes/sec max) 300

2.5 Physical characteristics

Drive specification

Maximum height (1000GB, 750GB, 500GB models)

mm) (inches)

Maximum height (250GB model only)

mm) (inches)

26.10

1.028

20.20

0.794

Maximum width

Maximum length

Typical weight

Cache Size

(mm) (inches)

1000 GB models 750 GB models 500 GB models 250 GB models

ST31000340SV ST3750330SV ST3500320SV

ST3250310SV

101.85

4.010

146.99

5.787

677 grams (1.493 lbs) 633 grams (1.396 lbs) 544 grams (1.199 lbs) 380 grams (0.838 lbs)

32 Mbytes

8 Mbytes

SV35.3 Series Serial ATA Product Manual, Rev. B 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 av erage of at least 5,000 measurements of seeks betwee n random tracks, less overhead.

*Typical seek times (msec) Read Write

Track-to-track (1000, 750 & 500 GB models) < 0.5 < 1.5

Track-to-track (250 GB model) < 1.0 < 1.2

Average (1000, 750 & 500 GB models) < 16.0 < 16.5

Average (250 GB model) < 15.0 < 16.0

*Measured in CE Seek mode.

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

seeks, regardless of m ode (such as track-to-track a nd 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 s eeks may produce results that vary from these specifications.

2.7 Start/stop times

1 TB models 750 GB models 500 GB models 250 GB models

Power-on and Standby to Ready (sec) 17 (max) 15 (max) 13 (max) 15 (max)

Ready to spindle stop (sec) 12 (max)

Note. Start/stop measurements are taken with nominal power at 25°C ambient temperature.

10 SV35.3 Series Serial ATA Product Manual, Rev. B

2.8 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 1 on page 24.

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 nomi nal conditions, using 5.0 V and 12.0V input vo ltage at 25°C ambient temperature.

• Spinup power

Spinup power is measured from the tim e of power-on to the ti me that the drive sp indle reaches ope rating speed.

• Seek mode

During seek mode, the read/wr ite actuator arm moves towar d a specific position on the disc s urface and does not execute a read or write o peration . Servo el ectroni cs are active. S eek mode po wer repr esen ts the worst-case power co nsump tion, us ing o nly ran dom s eeks with read or wr ite la tency ti me. This mode is no t typical and is provided for worst-case information.

• Read/write power and current

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

• 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 accep ts co mmands, b ut the driv e is not spi nning , and the se rvo and read / write electronics are in power-down mode.

SV35.3 Series Serial ATA Product Manual, Rev. B 11

+ 37 hidden pages