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.
This manual describes the functional, mechanical and interface specifications for the following
Seagate® Desktop SSHD model drives:
ST4000DX001ST2000DX001ST1000DX001
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
1.1About 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.
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2.0Drive Specifications
Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power.
For convenience, the phrases the drive and this drive are used throughout this manual to indicate the following
drive models:
ST4000DX001ST2000DX001ST1000DX001
2.1Specification 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
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.
2.2Formatted capacityy
Model
Formatted
capacity*
ST4000DX0014000GB7,814,037,168
ST2000DX0012000GB3,907,029,168
ST1000DX0011000GB1,953,525,168
*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
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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 isthe 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.
2.3Default 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 isthe number of guaranteed sectors as defined above.
2.4Recording and interface technology
InterfaceS ATA
Recording methodTGMR
Recording density (kFCI)1807
Track density (ktracks/inch avg)
1TB and 2TB352
4TB340
Areal density (Gb/in2)625
Spindle speed (RPM)
1TB and 2TB7200 ± 0.2%
4TB5900 ± 0.2%
Internal data transfer rate (Mb/s max)
1TB and 2TB2147
4TB1813
Maximum sustained data transfer rate, OD read (MB/s
1TB and 2TB210
4TB180
Average data rate, read/write (MB/s)
1TB and 2TB156
4TB146
I/O data-transfer rate (MB/s max)600
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2.5Physical characteristics
Maximum height
4TB and 2TB26.1mm / 1.028 in
1TB20.17mm / 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
4TB610g / 1.345 lb
2TB535g / 1.18 lb
1TB400g / 0.88 lb
Cache buffer64MB (64,768kb)
2.6Seek 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-track1.01.2
Average8.59.5
Average latency4.16
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.
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2.7Start/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)
2.8Power 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 ampsAvg 12V typ amps
Spinup——2.0
Idle* †6.200.500.31
Operating7.500.480.43
Standby0.7500.1380.005
Sleep0.7500.1380.005
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Table 2 DC power requirements (2-disk: 2TB model)
Power dissipation (2-disk values shown)Avg (watts 25° C)Avg 5V typ ampsAvg 12V amps
Spinup——2.0A
Idle2* †4.500.1960.296
Operating6.700.5250.340
Standby0.750.1360.005
Sleep0.750.1360.005
Table 3 DC power requirements (1-disk: 1TB model)
Power dissipation (1-disk values shown)Avg (watts 25° C)Avg 5V typ ampsAvg 12V amps
Spinup——2.0
Idle2* †3.360.1520.216
Operating5.900.5000.329
Standby0.630.1110.006
Sleep0.630.1110.006
*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.
†5W IDLE with DIPLM Enabled
2.8.2 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 10MHz.
• Using 5-volt power, the drive is expected to operate with a maximum of100 mV peak-to-peak square-wave
injected noise at up to 10MHz.
Note
Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.
2.8.3 Voltage tolerance
Voltage tolerance (including noise):
• 5V±5%
• 12V+10% / -7.5%
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2.8.4 Power-management modes
The drive provides programmable power management to provide greater energy efficiency. In most systems,
users can control power management through the system setup program. The drive features the following powermanagement modes:
Power modesHeadsSpindleBuffer
ActiveTrackingRotatingEnabled
IdleTrackingRotatingEnabled
StandbyParked StoppedEnabled
SleepParkedStoppedDisabled
• 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 disk
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, thedrive 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 disk 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 disk access is necessary.
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2.9Environmental specifications
This section provides the temperature, humidity, shock, and vibration specifications. Ambient temperature is
defined as the temperature of the environment immediately surrounding the drive. Above 1000ft. (305 meters), the
maximum temperature is derated linearly by 1°C every 1000 ft.
Refer to Section 3.4 on page 16 for base plate measurement location.
2.9.1 Ambient temperature
Operating0° to 60°C (32° to 140°F)
Nonoperating–40° to 70°C (–40° to 158°F)
2.9.2 Temperature gradient
Operating20°C per hour (68°F per hour max), without condensation
Nonoperating30°C per hour (86°F per hour max)
2.9.3 Humidity
2.9.3.1Relative humidity
Operating5% to 95% non-condensing (30% per hour max)
Nonoperating5% to 95% non-condensing (30% per hour max)
2.9.3.2Wet bulb temperature
Operating37.7°C (99.9°F max)
Nonoperating40°C (104°F max)
2.9.4 Altitude
Operating–304.8m to 3048m (–1000 ft. to 10,000+ ft.)
Nonoperating–304.8m to 12,192m (–1000 ft. to 40,000+ ft.)
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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.
2.9.5.1Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum
operating shock of 80 Gs based on half-sine shock pulses of 2ms during read operations. Shocks should not be
repeated more than two times per second. A maximum operating shock of 80 Gs based on half-sine shock pulses
of 10ms during read operations applies to the
2.9.5.2Nonoperating shock
2TB and 4TB models
The nonoperating shock level that the drive can experience without incurring physical damage or degradation in
performance when subsequently put into operation is 300 Gs based on a non-repetitive half-sine shock pulse of
2 ms in duration.
1TB model
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 non-repetitive half-sine shock pulse of
2 ms in duration.
2.9.5.3Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified
in this document are specified below.
2Hz to 22Hz0.25 Gs (Limited displacement)
22Hz to 350Hz0.50 Gs
350Hz to 500Hz0.25 Gs
All vibration specifications assume that the drive is mounted securely with the input vibration applied at the drive
mounting screws. Vibration may be applied in the X, Y or Z axis. Throughput may vary if improperly mounted.
2.9.6 Nonoperating vibration
The maximum nonoperating vibration levels that the drive may experience without incurring physical damage or
degradation in performance when subsequently put into operation are specified below.
5Hz to 22Hz3.0 Gs (Limited displacement)
22Hz to 350Hz3.0 Gs
350Hz to 500Hz3.0 Gs
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2.10 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All
measurements are consistent with ISO document 7779. Sound power measurements are taken under essentially
free-field conditions over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.
Note
Table 4 Fluid Dynamic Bearing (FDB) motor acoustics
For seek mode tests, the drive is placed in seek mode only. The number of seeks per second is defined by the
following equation: (Number of seeks per second = 0.4 / (average latency + average access time
Idle*Seek
4-Disk
(4TB)
2 Disks
(2TB)
1 Disk
(1TB)
*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.
2.3 bels (typical)
2.5 bels (max)
2.4 bels (typical)
2.6 bels (max)
2.2 bels (typical)
2.3 bels (max)
2.8 bels (typical)
3.0 bels (max)
2.6 bels (typical)
2.7 bels (max)
2.3 bels (typical)
2.4 bels (max)
2.10.1 Test for Prominent Discrete Tones (PDTs)
Seagate follows the ECMA-74 standards for measurement and identification of PDTs. An exception to this
process is the use of the absolute threshold of hearing. Seagate uses this threshold curve (originated in ISO 389-
7) to discern tone audibility and to compensate for the inaudible components of sound prior to computation of
tone ratios according to Annex D of the ECMA-74 standards.
2.11 Electromagnetic immunity
When properly installed in a representative host system, the drive operates without errors or degradation in
performance when subjected to the radio frequency (RF) environments defined in Table 5.
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.
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2.13 Agency certification
2.13.1 Safety certification
These products are certified to meet the requirements of UL60950-1, CSA60950-1 and EN60950 and so marked
as to the certify agency.
2.13.2 Electromagnetic compatibility
Hard drives that display the CE mark comply with the European Union (EU) requirements specified in the
Electromagnetic Compatibility Directive (2004/108/EC) as put into place 20 July 2007. Testing is performed to the
levels specified by the product standards for Information Technology Equipment (ITE). Emission levels are defined
by EN 55022, Class B and the immunity levels are defined by EN 55024.
Drives are tested in representative end-user systems. Although CE-marked Seagate drives comply with the
directives when used in the test systems, we cannot guarantee that all systems will comply with the directives.
The drive is designed for operation inside a properly designed enclosure, with properly shielded I/O cable (if
necessary) and terminators on all unused I/O ports. Computer manufacturers and system integrators should
confirm EMC compliance and provide CE marking for their products.
Korean RRL
If these drives have the Korean Communications Commission (KCC) logo, they comply with paragraph 1 of Article
11 of the Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility (EMC)
Framework requirements of the Radio Research Laboratory (RRL) Communications Commission, Republic of
Korea.
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibility
(EMI/EMS) for Class B products. Drives are tested in a representative, end-user system by a Korean-recognized
lab.
• Family name: Desktop SSHD
• Certificate number: in process
Australian C-Tick (N176)
If these models have the C-Tick marking, they comply with the Australia/New Zealand Standard AS/NZ CISPR22
and meet the Electromagnetic Compatibility (EMC) Framework requirements of the Australian Communication
Authority (ACA).
2.13.3 FCC verification
These drives are intended to be contained solely within a personal computer or similar enclosure (not attached as
an external device). As such, each drive is considered to be a subassembly even when it is individually marketed
to the customer. As a subassembly, no Federal Communications Commission verification or certification of the
device is required.
Seagate has tested this device in enclosures as described above to ensure that the total assembly (enclosure,
disk drive, motherboard, power supply, etc.) does comply with the limits for a Class B computing device, pursuant
to Subpart J, Part 15 of the FCC rules. Operation with non-certified assemblies is likely to result in interference to
radio and television reception.
Radio and television interference. This equipment generates and uses radio frequency energy and if not
installed and used in strict accordance with the manufacturer’s instructions, may cause interference to radio and
television reception.
This equipment is designed to provide reasonable protection against such interference in a residential installation.
However, there is no guarantee that interference will not occur in a particular installation. If this equipment does
cause interference to radio or television, which can be determined by turning the equipment on and off, users are
encouraged to try one or more of the following corrective measures:
• Reorient the receiving antenna.
• Move the device to one side or the other of the radio or TV.
• Move the device farther away from the radio or TV.
• Plug the computer into a different outlet so that the receiver and computer are on different branch outlets.
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If necessary, users should consult the dealer or an experienced radio/television technician for additional
suggestions. Users may find helpful the following booklet prepared by the Federal Communications Commission:
How to Identify and Resolve Radio-Television Interference Problems. This booklet is available from the
Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402. Refer to publication
number 004-000-00345-4.
2.14 Environmental protection
Seagate designs its products to meet environmental protection requirements worldwide, including regulations
restricting certain chemical substances.
2.14.1 European Union Restriction of Hazardous Substances (RoHS) Directive
The European Union Restriction of Hazardous Substances (RoHS) Directive, restricts the presence of chemical
substances, including Lead, Cadmium, Mercury, Hexavalent Chromium, PBB and PBDE, in electronic products,
effective July 2006. This drive is manufactured with components and materials that comply with the RoHS
Directive.
2.14.2 China Restriction of Hazardous Substances (RoHS) Directive
This product has an Environmental Protection Use Period (EPUP) of 20 years. The following table
contains information mandated by China's "Marking Requirements for Control of Pollution Caused
by Electronic Information Products" Standard.
"O" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is lower
than the threshold defined by the China RoHS MCV Standard.
"X" indicates the hazardous and toxic substance content of the part (at the homogenous material level) is over the
threshold defined by the China RoHS MCV Standard.
2.15 Corrosive environment
Seagate electronic drive components pass accelerated corrosion testing equivalent to 10 years exposure to light
industrial environments containing sulfurous gases, chlorine and nitric oxide, classes G and H per ASTM B845.
However, this accelerated testing cannot duplicate every potential application environment. Users should use
caution exposing any electronic components to uncontrolled chemical pollutants and corrosive chemicals as
electronic drive component reliability can be affected by the installation environment. The silver, copper, nickel
and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate
contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be
exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an
ambient relative humidity greater than 95%. Materials used in cabinet fabrication, such as vulcanized rubber, that
can outgas corrosive compounds should be minimized or eliminated. The useful life of any electronic equipment
may be extended by replacing materials near circuitry with sulfide-free alternatives.
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3.0Configuring and Mounting the Drive
This section contains the specifications and instructions for configuring and mounting the drive.
3.1Handling and static-discharge precautions
After unpacking, and before installation, the drive may be exposed to potential handling and electrostatic
discharge (ESD) hazards. Observe the following standard handling and static-discharge precautions:
Caution
• Before handling the drive, put on a grounded wrist strap, or ground oneself frequently by touching the metal
chassis of a computer that is plugged into a grounded outlet. Wear a grounded wrist strap throughout the entire
installation procedure.
• Handle the drive by its edges or frame only.
• The drive is extremely fragile—handle it with care. Do not press down on the drive top cover.
• Always rest the drive on a padded, antistatic surface until mounting it in the computer.
• Do not touch the connector pins or the printed circuit board.
• Do not remove the factory-installed labels from the drive or cover them with additional labels. Removal voids the
warranty. Some factory-installed labels contain information needed to service the drive. Other labels are used to
seal out dirt and contamination.
3.2Configuring the drive
Each drive on the SATA interface connects point-to-point with the SATA host adapter. There is no master/slave
relationship because each drive is considered a master in a point-to-point relationship. 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. Both drives behave as if they are Device 0 (master) devices.
SATA drives are designed for easy installation. It is usually not necessary to set any jumpers on the drive for
proper operation; however, if users connect the drive and receive a “drive not detected” error, the SATA-equipped
motherboard or host adapter may use a chipset that does not support SATA speed autonegotiation.
3.3SATA cables and connectors
The SATA interface cable consists of four conductors in two differential pairs, plus three ground connections. The
cable size may be 30 to 26 AWG with a maximum length of one meter (39.37 inches). See Table 6 for connector
pin definitions. Either end of the SATA signal cable can be attached to the drive or host.
For direct backplane connection, the drive connectors are inserted directly into the host receptacle. The drive and
the host receptacle incorporate features that enable the direct connection to be hot pluggable and blind
mateable.
For installations which require cables, users can connect the drive as illustrated in Figure 2.
Figure 2 Attaching SATA cabling
Signal connector
Power connector
Signal cable
Power cable
Each cable is keyed to ensure correct orientation. Desktop SSHD drives support latching SATA connectors.
Seagate Desktop SSHD Product Manual, Rev. C15
Page 20
3.4Drive mounting
Users can mount the drive in any orientation using four screws in the side-mounting holes or four screws in the
bottom-mounting holes. Refer to Figure 3 and Figure 4 for drive mounting dimensions. Follow these important
mounting precautions when mounting the drive:
• Allow a minimum clearance of 0.030 inches (0.76mm) around the entire perimeter of the drive for cooling.
• Use only 6-32 UNC mounting screws.
• The screws should be inserted no more than 0.150 inch (3.81mm) into the bottom or side mounting holes.
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).
Figure 3 Mounting dimensions (4TB & 2TB models)
Temperature
Check Point
Seagate Desktop SSHD Product Manual, Rev. C16
Page 21
www.seagate.comConfiguring and Mounting the Drive
Figure 4 Mounting dimensions (1TB models)
Temperature
Check Point
Seagate Desktop SSHD Product Manual, Rev. C17
Page 22
www.seagate.comSATA Interface
4.0SATA Interface
These drives use the industry-standard Serial ATA (SATA) interface that supports FIS data transfers. It supports
ATA programmed input/output (PIO) modes 0 to 4; multiword DMA modes 0 to 2, and Ultra DMA modes 0 to 6.
For detailed information about the SATA interface, refer to the “Serial ATA: High Speed Serialized AT Attachment”
specification.
4.1Hot-Plug compatibility
Desktop SSHD drives incorporate connectors which enable users to hot plug these drives in accordance with the
SATA Revision 3.0 specification. This specification can be downloaded from
4.2SATA device plug connector pin definitions
Table 6 summarizes the signals on the SATA interface and power connectors.
Table 6 SATA connector pin definitions
SegmentPinFunctionDefinition
SignalS1Ground2nd mate
S2A+Differential signal pair A from Phy
S3A-
S4Ground2nd mate
S5B-Differential signal pair B from Phy
S6B+
S7Ground2nd mate
Key and spacing separate signal and power segments
PowerP1V
P2V
P3V
P4Ground1st mate
P5Ground2nd mate
P6Ground2nd mate
P7V
P8V
P9V
P10Ground2nd mate
P11Ground or LED signalIf grounded, drive does not use deferred spin
P12Ground1st mate.
P13V
P14V
P15V
33
33
33
5
5
5
12
12
12
Notes
1. All pins are in a single row, with a 1.27 mm (0.050 in) pitch.
3.3V power
3.3V power
3.3V power, pre-charge, 2nd mate
5V power, pre-charge, 2nd mate
5V power
5V power
12V power, pre-charge, 2nd mate
12V power
12V power
www.serialata.org.
2. The comments on the mating sequence apply to the case of backplane blindmate connector only. In this
case, the mating sequences are:
• the ground pins P4 and P12.
• the pre-charge power pins and the other ground pins.
• the signal pins and the rest of the power pins.
3. There are three power pins for each voltage. One pin from each voltage is used for pre-charge when installed
in a blind-mate backplane configuration.
• All used voltage pins (Vx) must be terminated.
Seagate Desktop SSHD Product Manual, Rev. C18
Page 23
4.3Supported ATA commands
The following table lists SATA standard commands that the drive supports.
For a detailed description of the ATA commands, refer to the Serial ATA International Organization:
Serial ATA Revision 3.0 (http://www.sata-io.org).
See “S.M.A.R.T. commands” on page 26 for details and subcommands used in the S.M.A.R.T. implementation.
Table 7 SATA standard commands
Command nameCommand code (in hex)
Check Power ModeE5
Device Configuration Freeze LockB1H / C1
Device Configuration IdentifyB1H / C2
Device Configuration RestoreB1H / C0
Device Configuration SetB1H / C3
Device Reset08
Download Microcode92
Execute Device Diagnostics90
Flush CacheE7
Flush Cache ExtendedEA
Format Track50
Identify DeviceEC
IdleE3
Idle ImmediateE1
Initialize Device Parameters91
Read BufferE4
Read DMA C8
Read DMA Extended25
Read DMA Without RetriesC9
Read Log Ext2F
Read MultipleC4
Read Multiple Extended29
Read Native Max AddressF8
Read Native Max Address Extended27
Read Sectors 20
Read Sectors Extended24
Read Sectors Without Retries21
Read Verify Sectors 40
Read Verify Sectors Extended42
Read Verify Sectors Without Retries41
Recalibrate10
Security Disable PasswordF6
Security Erase PrepareF3
Security Erase UnitF4
Security FreezeF5
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Seagate Desktop SSHD Product Manual, Rev. C19
Page 24
www.seagate.comSATA Interface
Table 7 SATA standard commands (continued)
Command nameCommand code (in hex)
Security Set PasswordF1
Security UnlockF2
Seek70
Set FeaturesEF
Set Max AddressF9
Note: Individual Set Max Address
commands are identified by the
value placed in the Set Max
Features register as defined to the
right.
Set Max Address Extended37
Set Multiple ModeC6
SleepE6
S.M.A.R.T. Disable OperationsB0H / D9
S.M.A.R.T. Enable/Disable AutosaveB0H / D2
S.M.A.R.T. Enable OperationsB0H / D8
S.M.A.R.T. Execute OfflineB0H / D4
S.M.A.R.T. Read Attribute ThresholdsB0H / D1
S.M.A.R.T. Read DataB0H / D0
S.M.A.R.T. Read Log SectorB0H / D5
S.M.A.R.T. Return StatusB0H / DA
S.M.A.R.T. Save Attribute ValuesB0H / D3
S.M.A.R.T. Write Log SectorB0H / D6
StandbyE2
Standby ImmediateE0
Write BufferE8
Write DMACA
Write DMA Extended35
Write DMA FUA Extended3D
Write DMA Without RetriesCB
Write Log Extended3F
Write MultipleC5
Write Multiple Extended39
Write Multiple FUA ExtendedCE
Write Sectors30
Write Sectors Without Retries31
Write Sectors Extended34
Write Uncorrectable45
H
H
H
H
H
Address:
Password:
Lock:
Unlock:
Freeze Lock:
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
00
01
02
03
04
H
H
H
H
H
Seagate Desktop SSHD Product Manual, Rev. C20
Page 25
www.seagate.comSATA Interface
4.3.1 Identify Device command
The Identify Device command (command code ECH) transfers information about the drive to the host following
power up. The data is organized as a single 512-byte block of data, whose contents are shown in on page 19. All
reserved bits or words should be set to zero. Parameters listed with an “x” are drive-specific or vary with the state
of the drive.
The following commands contain drive-specific features that may not be included in the SATA specification.
Table 8 Identify Device commands
WordDescriptionValue
0Configuration information:
0C5A
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
1Number of logical cylinders16,383
2ATA-reserved0000
3Number of logical heads16
4Retired0000
5Retired0000
6Number of logical sectors per logical track: 63003F
(8 ASCII character string, padded with blanks to end of string)
x.xx
H
H
H
H
H
H
H
H
H
27–46Drive model number:
(40 ASCII characters, padded with blanks to end of string)
47(Bits 7–0) Maximum sectors per interrupt on Read multiple and Write multiple
(16)
48Reserved0000
49Standard Standby timer, IORDY supported and may be disabled2F00
50ATA-reserved0000
51PIO data-transfer cycle timing mode0200
52Retired0200
53Words 54–58, 64–70 and 88 are valid0007
54Number of current logical cylinders xxxx
55Number of current logical heads xxxx
56Number of current logical sectors per logical trackxxxx
57–58Current capacity in sectorsxxxx
59Number of sectors transferred during a Read Multiple
or Write Multiple command
8010
xxxx
H
H
H
H
H
H
H
H
H
H
H
H
Seagate Desktop SSHD Product Manual, Rev. C21
Page 26
www.seagate.comSATA Interface
Table 8 Identify Device commands (continued)
WordDescriptionValue
60–61Total number of user-addressable LBA sectors available
0FFFFFFFh*
(see Section 2.2 for related information)
*Note: The maximum value allowed in this field is: 0FFFFFFFh (268,435,455
sectors, 137GB). Drives with capacities over 137GB will have 0FFFFFFFh in
this field and the actual number of user-addressable LBAs specified in words
100-103. This is required for drives that support the 48-bit addressing
feature.
62Retired0000
63Multiword DMA active and modes supported
xx07
(see note following this table)
64Advanced PIO modes supported (modes 3 and 4 supported)0003
65Minimum multiword DMA transfer cycle time per word (120 nsec)0078
66Recommended multiword DMA transfer cycle time per word (120 nsec)0078
67Minimum PIO cycle time without IORDY flow control (240 nsec)0078
68Minimum PIO cycle time with IORDY flow control (120 nsec) 0078
69–74ATA-reserved0000
75Queue depth001F
76SATA capabilitiesxxxx
77Reserved for future SATA definitionxxxx
78SATA features supportedxxxx
79SATA features enabledxxxx
80Major version number01F0
81Minor version number0028
82Command sets supported364B
83Command sets supported7F09
84Command sets support extension (see note following this table)4163
85Command sets enabled30xx
86Command sets enabledBE09
87Command sets enable extension4163
88Ultra DMA support and current mode (see note following this table)xx7F
89Security erase time0039
90Enhanced security erase time0039
92Master password revision codeFFFE
93Hardware reset valuexxxx
94Automatic acoustic management8080
95–99ATA-reserved0000
100–103Total number of user-addressable LBA sectors available (see Section 2.2 for
related information). These words are required for drives that support the 48bit addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
ST4000DX001 = 7,814,037,168
ST2000DX001 = 3,907,029,168
ST1000DX001 = 1,953,525,168
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
Seagate Desktop SSHD Product Manual, Rev. C22
Page 27
www.seagate.comSATA Interface
Table 8 Identify Device commands (continued)
WordDescriptionValue
104–107ATA-reserved0000
108–111The mandatory value of the world wide name (WWN) for the drive. NOTE:
This field is valid if word 84, bit 8 is set to 1 indicating 64-bit WWN support.
Each drive will have
a unique value.
112–127ATA-reserved0000
128Security status0001
129–159Seagate-reservedxxxx
160–254ATA-reserved0000
255Integrity wordxxA5
Note
Note
Advanced Power Management (APM) and Automatic Acoustic Management (AAM) features are not
supported.
See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
Description (if bit is set to 1)
BitWord 63
H
H
H
H
H
H
0Multiword DMA mode 0 is supported.
1Multiword DMA mode 1 is supported.
2Multiword DMA mode 2 is supported.
8Multiword DMA mode 0 is currently active.
9Multiword DMA mode 1 is currently active.
10Multiword DMA mode 2 is currently active.
BitWord 84
0SMART error login is supported.
1SMART self-test is supported.
2Media serial number is supported.
3Media Card Pass Through Command feature set is supported.
4Streaming feature set is supported.
5GPL feature set is supported.
6WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported.
7WRITE DMA QUEUED FUA EXT command is supported.
864-bit World Wide Name is supported.
9-10Obsolete.
11-12Reserved for TLC.
13IDLE IMMEDIATE command with IUNLOAD feature is supported.
Seagate Desktop SSHD Product Manual, Rev. C23
Page 28
www.seagate.comSATA Interface
14Shall be set to 1.
15Shall be cleared to 0.
BitWord 88
0Ultra DMA mode 0 is supported.
1Ultra DMA mode 1 is supported.
2Ultra DMA mode 2 is supported.
3Ultra DMA mode 3 is supported.
4Ultra DMA mode 4 is supported.
5Ultra DMA mode 5 is supported.
6Ultra DMA mode 6 is supported.
8Ultra DMA mode 0 is currently active.
9Ultra DMA mode 1 is currently active.
10Ultra DMA mode 2 is currently active.
11Ultra DMA mode 3 is currently active.
12Ultra DMA mode 4 is currently active.
13Ultra DMA mode 5 is currently active.
14Ultra DMA mode 6 is currently active.
Seagate Desktop SSHD Product Manual, Rev. C24
Page 29
www.seagate.comSATA Interface
4.3.2 Set Features command
This command controls the implementation of various features that the drive supports. When the drive receives
this command, it sets BSY, checks the contents of the Features register, clears BSY and generates an interrupt. If
the value in the register does not represent a feature that the drive supports, the command is aborted. Power-on
default has the read look-ahead and write caching features enabled. The acceptable values for the Features
register are defined as follows:
Table 9 Set Features command
02
03
06
07
10
55
82
86
90
AA
F1
Enable write cache (default).
H
Set transfer mode (based on value in Sector Count register).
H
Sector Count register values:
00
Set PIO mode to default (PIO mode 2)
H
01
Set PIO mode to default and disable IORDY (PIO mode 2)
At power-on, or after a hardware or software reset, the default values of the features are as indicated
above.
Seagate Desktop SSHD Product Manual, Rev. C25
Page 30
www.seagate.comSATA Interface
4.3.3 S.M.A.R.T. commands
S.M.A.R.T. provides near-term failure prediction for disk drives. When S.M.A.R.T. is enabled, the drive monitors
predetermined drive attributes that are susceptible to degradation over time. If self-monitoring determines that a
failure is likely, S.M.A.R.T. makes a status report available to the host. Not all failures are predictable. S.M.A.R.T.
predictability is limited to the attributes the drive can monitor. For more information on S.M.A.R.T. commands and
implementation, see the DraftATA-5 Standard.
SeaTools diagnostic software activates a built-in drive self-test (DST S.M.A.R.T. command for D4H) that eliminates
unnecessary drive returns. The diagnostic software ships with all new drives and is also available at:
http://seatools.seagate.com.
This drive is shipped with S.M.A.R.T. features enabled. The table below shows the S.M.A.R.T. command codes
that the drive uses.
Table 10 S.M.A.R.T. commands
Code in features registerS.M.A.R.T. command
D0
D2
D3
D4
D5
D6
D8
D9
DA
H
H
H
H
H
H
H
H
H
Note
S.M.A.R.T. Read Data
S.M.A.R.T. Enable/Disable Attribute Autosave
S.M.A.R.T. Save Attribute Values
S.M.A.R.T. Execute Off-line Immediate (runs DST)
S.M.A.R.T. Read Log Sector
S.M.A.R.T. Write Log Sector
S.M.A.R.T. Enable Operations
S.M.A.R.T. Disable Operations
S.M.A.R.T. Return Status
If an appropriate code is not written to the Features Register, the command is aborted and 0x 04 (abort)
is written to the Error register.
Seagate Desktop SSHD Product Manual, Rev. C26
Page 31
Index
A
ACA 13
acceleration 11
acoustics 12
Active 9
Active mode 9
Agency certification 13
altitude 10
Ambient temperature 10
ambient temperature 6, 7
areal density 5
ATA commands 19
Australia/New Zealand Standard AS/NZ CISPR22 13
Australian Communication Authority (ACA) 13
Australian C-Tick 13
Average latency 6
Average seek time 6
B
buffer 6
C
cables and connectors 15
cache 6
capacity 4
CE mark 13
certification 13
Check Power Mode 19
China RoHS directive 14
compatibility 13
Conducted noise 8
Conducted RF immunity 12
Configuring the drive 15
connectors 15
Corrosive environment 14
CSA60950-1 13
EN 55022, Class B 13
EN 55024 13
EN60950 13
enclosures 13
Environmental specifications 10
error-correction algorithms 2
ESD 15
EU 13
EU RoHS directive 14
European Union (EU) requirements 13
Execute Device Diagnostics 19
F
FCC verification 13
features 2
Flush Cache 19
Flush Cache Extended 19
Format Track 19
Formatted capacity 4
AMERICAS Seagate Technology LLC 10200 South De Anza Boulevard, Cupertino, California 95014, United States, 408-658-1000
ASIA/PACIFIC Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology SAS 16-18 rue du Dôme, 92100 Boulogne-Billancourt, France, 33 1-4186 10 00
Publication Number: 100726566, Rev. C
March 2014
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