Seagate STCL4000400, STCL2000400 User manual

Product Manual

Desktop SSHD

ST4000DX001

ST2000DX001

ST1000DX001

100726566
Rev. C
March 2014

Document Revision History

Revision Date Description of Change

Rev. A 04/30/2013 Initial release

Rev. B 06/07/2013 Added 4TB model and related specifications throughout.

Rev. C 03/18/2014

Revised: Copyright text (below); Warranty URL & text (pages 4 & 12);
Replaced MTBF w/AFR in Rated Workload text (page 4)

© 2014 Seagate Technology LLC. All rights reserved.
Publication number: 100726566, Rev. C March 2014
Seagate, Seagate Technology and the Wave logo are registered trademarks of Seagate Technology LLC in the United States and/or

other countries. Desktop SSHD 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. 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

1.0 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

1.1 About the SATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2.0 Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Formatted capacityy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

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

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

2.4 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.6 Seek time. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

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

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

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

2.8.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.8.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

2.8.4 Power-management modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.9 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.1 Ambient temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.2 Temperature gradient. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.3 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

2.9.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.9.6 Nonoperating vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.10 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.10.1 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.11 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.12 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.13 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.2 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.13.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.14 Environmental protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive . . . . . 14

2.14.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . 14

2.15 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.0 Configuring and Mounting the Drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1 Handling and static-discharge precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.3 SATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4.0 SATA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 SATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Seagate Desktop SSHD Product Manual, Rev. C

Figures

Figure 1 DC power requirements (4-disk: 4TB model) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 2 Attaching SATA cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Figure 3 Mounting dimensions (4TB & 2TB models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 4 Mounting dimensions (1TB models) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Seagate Desktop SSHD Product Manual, Rev. C

Seagate Technology Support Services

For information regarding online support and services, visit:

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/about/contact-us/technical-support/

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

http://www.seagate.com/partners

Seagate Desktop SSHD Product Manual, Rev. C 1

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following
Seagate® Desktop SSHD model drives:

ST4000DX001 ST2000DX001 ST1000DX001

These drives provide the following key features:

• 8GB NAND flash

• 5900 and 7200 RPM spindle speed

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

• TGMR 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

• Seagate AcuTrac™ servo technology delivers dependable performance, even with hard drive track widths of
only 75 nanometers.

• Seagate OptiCache™ technology boosts overall performance by as much as 45% over the previous
generation.

• Seagate SmartAlign™ technology provides a simple, transparent migration to Advanced Format 4K sectors.

• Quiet operation

• Compliant with RoHS requirements in China and Europe

• 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

1.1 About the SATA interface

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

The SATA interface connects each disk drive in a point-to-point configuration with the SATA host adapter. There is
no master/slave relationship with SATA devices like there is with parallel ATA. If two drives are attached on one
SATA 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 SATA 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 SATA host adapter contains a set of registers that shadow the contents of the traditional device registers,
referred to as the Shadow Register Block. All SATA devices behave like Device 0 devices. For additional
information about how SATA emulates parallel ATA, refer to the “Serial ATA International Organization: Serial ATA
Revision 3.0”. The specification can be downloaded from www.sata-io.org.

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

Note

separate SATA 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 SATA environment.

Seagate Desktop SSHD Product Manual, Rev. C 2

www.seagate.com Drive Specifications

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:

ST4000DX001 ST2000DX001 ST1000DX001

2.1 Specification summary tables

The specifications listed in Table 1 are for quick reference. For details on specification measurement or definition,
refer to the appropriate section of this manual.

Table 1 Drive specifications summary for 4TB, 2TB and 1TB models

Drive Specification* ST4000DX001 ST2000DX001 ST1000DX001

Formatted capacity (512 bytes/sector)** 4000GB (4TB) 2000GB (2TB) 1000GB (1TB)

Guaranteed sectors 7,814,037,168 3,907,029,168 1,953,525,168

Heads 8 4 2

Disks 4 2 1

NAND flash Commercial Multilevel Cell
(cMLC)/size

Bytes per sector
(4K physical emulated at 512-byte sectors)

Default sectors per track 63

Default read/write heads 16

Default cylinders 16,383

Recording density (max) 1807kFCI

Track density (avg) 340ktracks/in

Areal density (avg) 625Gb/in

Spindle speed 5900 RPM 7200 RPM

Internal data transfer rate (max) 1813Mb/s 2147Mb/s

Average data rate, read/write (MB/s) 146MB/s 156MB/s

Maximum sustained data rate, OD read (MB/s) 180MB/s 210MB/s

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

Cache buffer 64MB

Height (max) 26.1mm / 1.028 in 20.17mm / 0.7825 in

Width (max) 101.6mm /4.0 in (+ 0.010 in)

Length (max) 146.99mm / 5.787 in

Weight (typical) 610g / 1.345 lb 535g / 1.18 lb 400g / 0.88 lb

Average latency 5.1ms 4.16ms

Power-on to ready (max)

Standby to ready (max)

Average seek, read (typical)
Average seek, write (typical)

Startup current 12V 2.0A

Voltage tolerance (including noise)

Ambient temperature

Temperature gradient

Relative humidity

Relative humidity gradient (max) 30% per hour

‡

‡

5% to 95% (nonoperating)

<1.0s <1.0s

<1.0s <1.0s

<12.0ms typical
<12.0ms typical

5V: ±5%

12V: ±10%

20°C per hour max (operating)

30°C per hour max (nonoperating)

5% to 90% (operating)

cMLC/8GB

4096

2

<8.5ms (read)

<9.5ms (write)

5V: ±5%

12V: +10% / -7.5%

0° to 60°C (operating)

–40° to 70°C (nonoperating)

5% to 95% (operating)

5% to 95% (nonoperating)

Seagate Desktop SSHD Product Manual, Rev. C 3

Table 1 Drive specifications summary for 4TB, 2TB and 1TB models (continued)

Drive Specification* ST4000DX001 ST2000DX001 ST1000DX001

Wet bulb temperature (max)

Altitude, operating

Altitude, nonoperating
(below mean sea level, max)

Operational shock (max) 80 Gs at 10ms

Nonoperational shock (max) 300 Gs at 2ms 350 Gs at 2ms

Vibration, operating

Vibration, nonoperating

Drive acoustics, sound power

Idle***

Seek

Non-recoverable read errors 1 per 10

Rated workload

Warranty

Load/Unload cycles (25°C, 50% rel. humidity) 300,000

Supports Hotplug operation per the
Serial ATA Revision 3.0 specification

2.3 bels (typical)

2.5 bels (max)

2.8 bels (typical)

3.0 bels (max)

Average rate of <55TB/year. The AFR specification for the drive assumes the I/O
workload does not exceed the average annualized workload rate limit of 55TB/year.
Workloads exceeding the annualized rate may degrade the drive AFR and impact
product reliability. The average annualized workload rate limit is in units of TB per year,
or TB per 8760 power-on hours. Workload rate limit = 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: http://www.seagate.com/support/warranty-and-replacements/
From this page, click on “Check to see if the drive is under Warranty”. Users 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 the drive.

2Hz to 22Hz: 0.25 Gs, Limited displacement

37.7°C max (operating)

40.0°C max (nonoperating)

–304m to 3048m

(–1000 ft to 10,000 ft)

–304m to12,192m

(–1000 ft to 40,000+ ft)

22Hz to 350Hz: 0.50 Gs

350Hz to 500Hz: 0.25 Gs

5Hz to 22Hz: 3.0 Gs

22Hz to 350Hz: 3.0 Gs

350Hz to 500Hz: 3.0 Gs

2.4 bels (typical)

2.6 bels (max)

2.6 bels (typical)

2.7 bels (max)

14

bits read

Ye s

2.2 bels (typical)

2.4 bels (max)

2.4 bels (typical)

2.5 bels (max)

*All specifications above are based on native configurations.
** One GB equals one billion bytes and 1TB equals one trillion 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.

‡

Hybrid time-to-ready specification assumes all needed data files are pinned to flash, Windows 8 environment, and fast BIOS implemented.

2.2 Formatted capacityy

Model

Formatted
capacity*

ST4000DX001 4000GB 7,814,037,168

ST2000DX001 2000GB 3,907,029,168

ST1000DX001 1000GB 1,953,525,168

*One GB equals one billion bytes and 1TB equals one trillion bytes when referring to hard drive capacity. Accessible capacity may vary depending

on operating environment and formatting.

Guaranteed
sectors

Bytes per sector

4K

Seagate Desktop SSHD Product Manual, Rev. C 4

www.seagate.com Drive Specifications

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 137GB.

2.3 Default logical geometry

• Cylinders: 16,383

• Read/write heads: 16

• Sectors per track: 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 S ATA

Recording method TGMR

Recording density (kFCI) 1807

Track density (ktracks/inch avg)

1TB and 2TB 352

4TB 340

Areal density (Gb/in2) 625

Spindle speed (RPM)

1TB and 2TB 7200 ± 0.2%

4TB 5900 ± 0.2%

Internal data transfer rate (Mb/s max)

1TB and 2TB 2147

4TB 1813

Maximum sustained data transfer rate, OD read (MB/s

1TB and 2TB 210

4TB 180

Average data rate, read/write (MB/s)

1TB and 2TB 156

4TB 146

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

Seagate Desktop SSHD Product Manual, Rev. C 5

www.seagate.com Drive Specifications

2.5 Physical characteristics

Maximum height

4TB and 2TB 26.1mm / 1.028 in

1TB 20.17mm / 0.7825 in

Maximum width (all models) 101.6mm / 4.0 in (± 0.010 in)

Maximum length (all models) 146.99mm / 5.787 in

Typical weight

4TB 610g / 1.345 lb

2TB 535g / 1.18 lb

1TB 400g / 0.88 lb

Cache buffer 64MB (64,768kb)

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 5000 measurements of seeks between
random tracks, less overhead.

Typical seek times (ms) Read Write

Track-to-track 1.0 1.2

Average 8.5 9.5

Average latency 4.16

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

Note

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.

Seagate Desktop SSHD Product Manual, Rev. C 6

www.seagate.com Drive Specifications

2.7 Start/stop times

Time-to-ready may be longer than normal if the drive power is removed without going through normal OS
powerdown procedures.

4-disk

(4TB)

Power-on to ready*
(in seconds)

Standby to ready*
(in seconds)

Ready to spindle stop
(in seconds)

* Hybrid time-to-ready specification assumes all needed data files are pinned to flash, Windows 8 environment, and fast BIOS implemented

<1 <1 <1

<1 <1 <1

10 (typical)
11 (max)

2-disk

(2TB)

10 (typical)
11 (max)

1-disk

(1TB)

10 (typical)
11 (max)

2.8 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. Refer to Figure 2 on page 15.

2.8.1 Power consumption

Power requirements for the drives are listed in Table 1, Table 2 and Table 3. 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.

• 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 16-sector read followed by a 32-ms 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.

Figure 1 DC power requirements (4-disk: 4TB model)

Power dissipation (4-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps

Spinup — — 2.0

Idle* † 6.20 0.50 0.31

Operating 7.50 0.48 0.43

Standby 0.750 0.138 0.005

Sleep 0.750 0.138 0.005

Seagate Desktop SSHD Product Manual, Rev. C 7