Seagate ST4000NM0033, ST3000NM0033, ST2000NM0033, ST1000NM0033, ST4000NM0053 Product Manual

Product Manual

Constellation® ES.3 Serial ATA

Standard models

ST4000NM0033
ST3000NM0033
ST2000NM0033
ST1000NM0033

Self-Encrypting drive models

ST4000NM0053
ST3000NM0053
ST2000NM0053
ST1000NM0053

SED FIPS 140-2 Models

ST4000NM0073
ST3000NM0073
ST2000NM0073
ST1000NM0073

100671511
Rev. E
October 2014

Document Revision History

Revision Date Description of changes

Rev . A 10/05/2012 Initial release.
Rev. B 01/14/2014 5 & 7.
Rev. C 02/13/2014 fc, 2, 4 & 37.
Rev. D 04/01/2014 4, 19 & 35.
Rev. E 10/16/2014 7 & 22.

© 2014 Seagate Technology LLC. All rights reserved.
Publication number: 100671511, Rev. E October 2014
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or

other countries. Constellation ES and SeaTools are either trademarks or registered trademarks of Seagate Technology LLC or one of
its affiliated companies in the United States and/or other countries. The FIPS logo is a certification mark of NIST, which does not imply
product endorsement by NIST, the U.S., or Canadian governments. All other trademarks or registered trademarks are the property of
their respective owners.

No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
Call 877-PUB-TEK1 (877-782-8351) to request permission.

When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your
computer’s operating system may use a different standard of measurement and report a lower capacity . In addition, some of the listed
capacity is used for formatting and other functions, and thus will not be available for data storage. Actual quantities will vary based on
various factors, including file size, file format, features and application software. Actual data rates may vary depending on operating
environment and other factors. The export or re-export of hardware or software containing encryption may be regulated by the U.S.
Department of Commerce, Bureau of Industry and Security (for more information, visit
use outside of the U.S. Seagate reserves the right to change, without notice, product offerings or specifications.

www.bis.doc.gov), and controlled for import and

Contents

Seagate® Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.3 Default logical geometry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.5 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.6.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.6.3 Voltage tolerance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.6.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.7 Environmental limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.7.1 Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.7.2 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.7.3 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.7.4 Shock. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.7.5 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.8 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.9 Test for Prominent Discrete Tones (PDTs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.10 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . 22

2.12 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.12.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.12.2 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.12.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

2.13 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.13.1 European Union Restriction of Hazardous Substances (RoHS) Directive. . . . . 24

2.13.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . 24

2.14 Corrosive environment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.15 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

2.16 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

3.0 Configuring and mounting the drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.3 Serial ATA cables and connectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

3.4 Drive mounting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

3.4.1 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.0 About FIPS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

5.0 About self-encrypting drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.1 Data encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2 Controlled access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.1 Admin SP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.2 Locking SP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5.2.3 Default password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Constellation ES.3 Serial ATA Product Manual, Rev. E

Contents

5.3 Random number generator (RNG) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.4 Drive locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.5 Data bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.6 Cryptographic erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.7 Authenticated firmware download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.8 Power requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.9 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.10 RevertSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

5.11 ATA Security Erase Unit Command on SED SATA drives . . . . . . . . . . . . . . . . . . . . . . . . 32

5.12 Sanitize Device - CRYPTO SCRAMBLE EXT. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

6.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.2 Serial ATA device plug connector pin definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

6.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

6.3.1 Identify Device command. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

6.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

6.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Constellation ES.3 Serial ATA Product Manual, Rev. E

Seagate® Technology Support Services

For information regarding online support and services, visit: http://www.seagate.com/about/contact-us/technical-support/
Available services include:

• Presales & Technical support

• Global Support Services telephone numbers & business hours

• Authorized Service Centers

For information regarding Warranty Support, visit:
For information regarding data recovery services, visit:
For Seagate OEM and Distribution partner portal, visit:
For Seagate reseller portal, visit:

http://www.seagate.com/partners/my-spp-dashboard/

http://www.seagate.com/support/warranty-and-replacements/

http://www.seagate.com/services-software/data-recovery-services/
http://www.seagate.com/partners

Constellation ES.3 Serial ATA Product Manual, Rev. E 4

1.0 Introduction

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

Seagate® Constellation® ES.3 Serial ATA model drives:.

Standard models

ST4000NM0033 ST4000NM0053 ST4000NM0073
ST3000NM0033 ST3000NM0053 ST3000NM0073
ST2000NM0033 ST2000NM0053 ST2000NM0073
ST1000NM0033 ST1000NM0053 ST1000NM0073

Self-Encrypting Drive (SED) SED FIPS 140-2 Drive

These drives provide the following key features:

• 7200 RPM spindle speed.

• PowerChoice™ for selectable power savings

• Top Cover Attached motor for excellent vibration tolerance

• High instantaneous (burst) data-transfer rates (up to 600MB per second).

• Perpendicular recording technology provides the drives with increased areal density.

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

• Native Command Queueing with command ordering to increase performance in demanding applications.

• Full-track multiple-sector transfer capability without local processor intervention.

• 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.

• Worldwide Name (WWN) capability uniquely identifies the drive.

Note

Seagate recommends validating the drive configuration with the selected HBA/
RAID controller manufacturer to ensure full 4 & 3TB capacity capabilities.

For more information on FIPS 140-2 Level 2 certification see See Section 4.0 on page 29 .

1.1 About the Serial ATA interface

The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages

include:

• Easy installation and configuration with true plug-and-play connectivity . It is not necessary to set any jumpers or other con­figuration options.

• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.

• Scalability to higher performance levels.

In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial ATA was
designed to allow the user to install a Serial ATA host adapter and Serial ATA disk drive in current system and expect all
existing applications to work as normal.

The Serial ATA interface connects each disk 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.

The host adapter may, optionally, emulate a master/slave environment to host software where two devices on

Note

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.
Constellation ES.3 Serial ATA Product Manual, Rev. E 5

2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For

convenience, the phrases the drive and this drive are used throughout this manual to indicate the following drive models:

Standard models

Self-Encrypting Drive (SED) SED FIPS 140-2 Drive

ST4000NM0033 ST4000NM0053 ST4000NM0073
ST3000NM0033 ST3000NM0053 ST3000NM0073
ST2000NM0033 ST2000NM0053 ST2000NM0073
ST1000NM0033 ST1000NM0053 ST1000NM0073

2.1 Specification summary tables

The specifications listed in the following tables are for quick reference. For details on specification measurement or

definition, see the appropriate section of this manual.

Table 1 Drive specifications summary

ST4000NM0033

Drive specification

Formatted (512 bytes/sector)* 4TB 3TB 2TB 1TB
Guaranteed sectors 7,814.037,168 5,860,533,168 3,907,029,168 1,953,525,168
Heads 10 8 5 3
Discs 5 4 3 2
Bytes per sector 512
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density, KBPI (Kb/in max) 1862
Track density, KTPI (ktracks/in avg.) 305
Areal density, (Gb/in2 avg) 566
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2160
Sustained data transfer rate OD

(MB/s max)
I/O data-transfer rate (MB/s max) 600

ATA data-transfer modes supported

Cache buffer 128MB (129,536KB)
Weight: (maximum) 700g (1.543 lb) 655g (1.444 lb) 635g (1.400 lb) 605g (1.334 lb)
Average latency 4.16ms
Power-on to ready (sec) 20 (max)
Standby to ready (sec) 20 (max)

Startup current (typical) 12V (peak)

Voltage tolerance (including noise)

Ambient temperature
Temperature gradient

(°C per hour max)
Relative humidity
Relative humidity gradient 30% per hour max

ST4000NM0053
ST4000NM0073

2.0A (optional configuration through Smart Command Transport)

ST3000NM0033
ST3000NM0053
ST3000NM0073

PIO modes 0–4

Multiword DMA modes 0–2

Ultra DMA modes 0–6

5V ±5%
12V ±5%

5° to 60°C (operating/tested)

–40° to 70°C (nonoperating)

20°C (operating)

30°C (nonoperating)

5% to 90% (operating)

5% to 95% (nonoperating)

175

2.6A

ST2000NM0033
ST2000NM0053
ST2000NM0073

ST1000NM0033
ST1000NM0053
ST1000NM0073

Constellation ES.3 Serial ATA Product Manual, Rev. E 6

ST4000NM0033

Drive specification

Altitude, operating
Altitude, nonoperating

(below mean sea level, max)
Operational Shock (max at 2 ms) Read 70 Gs / Write 40 Gs
Non-Operational Shock (max at 2 ms) 300 Gs

Vibration, operating

Operation Rotational vibration 20–1500Hz: 12.5 rads/s²
Vibration, nonoperating 10–500 Hz: 4.9 Grms ref
Drive acoustics, sound power (bels)

Idle**

Performance seek
Nonrecoverable read errors 1 sector per 10

Annualized Failure Rate (AFR) 0.44% based on 8760 POH

ST4000NM0053
ST4000NM0073

ST3000NM0033
ST3000NM0053
ST3000NM0073

–304.8 m to 3,048 m

(–1000 ft to 10,000+ ft)

–304.8 m to 12,192 m

(–1000 ft to 40,000+ ft)

5–22 Hz: 0.25 Gs, Limited displacement

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

2.8 (typical)

3.0 (max)

3.0 (typical)

3.4 (max)

ST2000NM0033
ST2000NM0053
ST2000NM0073

15

bits read

Maximum rate of <550TB/year

Maximum Rated Workload

Workloads exceeding the annualized rate may degrade the drive MTBF and impact product reli­ability. The Annualized Workload Rate is in units of TB per year, or TB per 8760 power on hours.
Workload Rate = TB transferred * (8760 / recorded power on hours).

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

Warranty

Load-unload cycles 600,000
Supports Hotplug operation per

Serial ATA Revision 3.2 specification

http://www.seagate.com/support/warranty-and-replacements/.

From this page, click on the “Check to see if the drive is under Warranty” link. The following are required to be
provided: the drive serial number, model number (or part number) and country of purchase. The system will
display the warranty information for the drive.

Yes

ST1000NM0033
ST1000NM0053
ST1000NM0073

*One GB 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

Formatted capacity* Guaranteed sectors Bytes per sector

4TB 7,814.037,168
3TB 5,860,533,168
2TB 3,907,029,168
1TB 1,953,525,168

512

*One GB 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 6.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-bit addressing

support of drives with capacities over 137GB.

2.3 Default logical geometry

Cylinders Read/write heads Sectors per track

Constellation ES.3 Serial ATA Product Manual, Rev. E 7

16,383 16 63

LBA mode

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

number of guaranteed sectors as defined above.

2.4 Recording and interface technology

Interface Serial A T A (SAT A)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 1862
Track density, KTPI (ktracks/in avg) 305

2

Areal density (Gb/in
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 2160
Sustained data transfer rate (MB/s max) 175
I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)

avg) 566

2.5 Start/stop times

4TB models 3TB models 2TB models 1TB models

Power-on to Ready (sec) 20 (max)
Standby to Ready (sec) 20 (max)
Ready to spindle stop (sec) 20 (max)

2.6 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 10 on page 26.

2.6.1 Power consumption

Power requirements for the drives are listed in the table on page 9. T ypical 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 disk 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-ms delay, then a 16­sector read followed by a 32ms 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 accepts commands, but the drive is not spinning, and the servo and read/write electron­ics are in power-down mode.

Constellation ES.3 Serial ATA Product Manual, Rev. E 8

Table 2 4TB Drive DC power requirements

Notes 6.0Gb mode
Voltage +5V +12V
Regulation ± 5%
Avg Idle Current * 0.28 0.50
Advanced Idle Current *

Idle_A 0.17 0.49
Idle_B 0.16 0.45
Idle_C 0.15 0.27
Standby 0.15 0.01

Maximum Start Current

DC (peak DC) 3 0.52 2.16
AC (Peak DC) 3 0.85 2.89

Delayed Motor Start (DC max) 3 0.16 0.01

Peak operating current (random read):

Typical DC 0.31 0.81

Maximum DC 3 0.32 0.84
Maximum DC (peak) 3 1.83 2.43

Peak operating current (random write)

Typical DC 0.30 0.78
Maximum DC 3 0.32 0.79
Maximum DC (peak) 3 0.78 2.39

Peak operating current (sequential read)

Typical DC 0.63 0.56
Maximum DC 3 0.66 0.57
Maximum DC (peak) 3 1.36 2.20

Peak operating current (sequential write)

Typical DC 0.55 0.60
Maximum DC 3 0.57 0.61
Maximum DC (peak) 3 1.40 2.18

*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.

Constellation ES.3 Serial ATA Product Manual, Rev. E 9

Table 3 3TB Drive DC power requirements

Notes 6.0Gb mode
Voltage +5V +12V
Regulation ± 5%
Avg Idle Current * 0.28 0.50
Advanced Idle Current *

Idle_A 0.17 0.49
Idle_B 0.16 0.45
Idle_C 0.15 0.27
Standby 0.15 0.01

Maximum Start Current

DC (peak DC) 3 0.52 2.16
AC (Peak DC) 3 0.85 2.89

Delayed Motor Start (DC max) 3 0.16 0.01

Peak operating current (random read):

Typical DC 0.31 0.81

Maximum DC 3 0.32 0.84
Maximum DC (peak) 3 1.83 2.43

Peak operating current (random write)

Typical DC 0.30 0.78
Maximum DC 3 0.32 0.79
Maximum DC (peak) 3 0.78 2.39

Peak operating current (sequential read)

Typical DC 0.63 0.56
Maximum DC 3 0.66 0.57
Maximum DC (peak) 3 1.36 2.20

Peak operating current (sequential write)

Typical DC 0.55 0.60
Maximum DC 3 0.57 0.61
Maximum DC (peak) 3 1.40 2.18

*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.

Constellation ES.3 Serial ATA Product Manual, Rev. E 10

Table 4 2TB Drive DC power requirements

Notes 6.0Gb mode
Voltage +5V +12V
Regulation ± 5%
Avg Idle Current * 0.28 0.36
Advanced Idle Current *

Idle_A 0.17 0.36
Idle_B 0.16 0.32
Idle_C 0.15 0.21
Standby 0.15 0.01

Maximum Start Current

DC (peak DC) 3 0.48 2.86
AC (Peak DC) 3 0.67 2.91

Delayed Motor Start (DC max) 3 0.16 0.01

Peak operating current (random read):

Typical DC 0.30 0.66

Maximum DC 3 0.31 0.71
Maximum DC (peak) 3 1.40 2.27

Peak operating current (random write)

Typical DC 0.30 0.63
Maximum DC 3 0.31 0.64
Maximum DC (peak) 3 0.67 2.24

Peak operating current (sequential read)

Typical DC 0.59 0.40
Maximum DC 3 0.60 0.41
Maximum DC (peak) 3 1.24 1.98

Peak operating current (sequential write)

Typical DC 0.49 0.43
Maximum DC 3 0.50 0.44
Maximum DC (peak) 3 0.80 1.87

*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.

Constellation ES.3 Serial ATA Product Manual, Rev. E 11

Table 5 1TB Drive DC power requirements

Notes 6.0Gb mode
Voltage +5V +12V
Regulation ± 5%
Avg Idle Current * 0.30 0.53
Advanced Idle Current *

Idle_A 0.17 0.30
Idle_B 0.16 0.27
Idle_C 0.16 0.18
Standby 0.15 0.01

Maximum Start Current

DC (peak DC) 3 0.60 2.12
AC (Peak DC) 3 1.57 2.89

Delayed Motor Start (DC max) 3 0.16 0.01

Peak operating current (random read):

Typical DC 0.32 0.54

Maximum DC 3 0.34 0.57
Maximum DC (peak) 3 1.23 2.10

Peak operating current (random write)

Typical DC 0.32 0.55
Maximum DC 3 0.33 0.56
Maximum DC (peak) 3 0.69 2.08

Peak operating current (sequential read)

Typical DC 0.63 0.33
Maximum DC 3 0.67 0.34
Maximum DC (peak) 3 0.92 1.90

Peak operating current (sequential write)

Typical DC 0.56 0.38
Maximum DC 3 0.58 0.38
Maximum DC (peak) 3 0.92 1.70

*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.

Constellation ES.3 Serial ATA Product Manual, Rev. E 12