Table of Contents
- SATA Product Manual
- Seagate® Technology Support Services
- 1.0 Introduction
- 2.0 Drive Specifications
- 2.1 Specification summary tables
- 2.2 Formatted capacity
- 2.3 Default logical geometry
- 2.4 Recording and interface technology
- 2.5 Physical characteristics
- 2.6 Start/stop times
- 2.7 Power specifications
- 2.8 Environmental specifications
- 2.9 Acoustics
- 2.10 Electromagnetic immunity
- 2.11 Warranty
- 2.12 HDD and SSD Regulatory Compliance and Safety
- 2.13 Corrosive environment
- 3.0 Configuring and Mounting the Drive
- 4.0 SATA Interface
Seagate ST8000DMA04 User Manual
Displayed below is the user manual for ST8000DMA04 by Seagate which is a product in the Internal Hard Drives category. This manual has pages.
Related Manuals
100805918, Rev. N
July 2020
Standard models
ST8000DM004
ST6000DM003
ST4000DM004
ST3000DM007
ST2000DM005
SATA Product Manual
© 2020 Seagate Technology LLC. All rights reserved.
Publication number: 100805918, Rev. N July 2020
Seagate, Seagate Technology and the Spiral logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. BarraCuda 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 trade-
marks 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 www.bis.doc.gov), and controlled for import and use outside of the U.S. Seagate reserves the right to change, without notice, product offerings or specifications.
Document Revision History
Revision Date Pages affected
Rev. A 08/05/2016 Initial release.
Rev. B 09/07/2016
fc, 6-8, 11-13, 16-18 & 29-30: Added 5TB model, specs & references
9 & 12: Updated Avg seek times to 15.0 ms
13: DC power - Standby/Sleep edits)
18: Added Korean text for Class B device warning
Rev. C 11/28/2016
fc: New BarraCuda logo
fc, 6, 15, 21 & 24: Changed name to BarraCuda
fc, 6-7, 11-13, 16-17 & 29-30: Remove 5TB model & specs
7, 9 & 11: Revised Data transfer rates
7, 9 & 12: Removed Seek times from all capacities
8-9 & 16: Changed Op shock to 80Gs (read) / 70 Gs (write) at 2ms
13: Section 2.8.1 Power Consumption & DC Power table edits
14: Revised Section 2.8.4 Power-management modes
18: Revised to MSIP Korean text Class B device warning
22-23: Revised Figures 2 & 3 mechanical drawings
Rev. D 02/21/2017
8 & 10: Added Power-off/Flush Command note after Tables 1 & 2.
8 & 10: Revised Rated Workload statements
18: Added Section 2.11.1 Data loss under power interruption with write cache enabled
Rev. E 06/22/2017 9 & 12: Updated Max Height to 20.20mm/0.795 in.
22: Updated Max Height in Figure 2: Mounting dimensions (1 and 2-disk models)
Rev. F 09/28/2017 18-21: Updated Safety, EMC, FCC & RoHS Sections 2.12 through 2.13.3, per Compliance Council
Rev. G 11/03/2017
7 & 9: Updated 6TB & 3TB Maximum data transfer rate to 185 MB/s
15: Added Figure 1: Location of the HDA temperature check point
21: Updated Table 6: Taiwan - Restricted Substances - Unit row headers = HDD & PCBA
23-24: Corrected fastener penetration depth to 0.140 inches in Section 3.4 & Figures 3 & 4
Rev. H 04/13/2018 18: Added Regulatory Model Number
Rev. J 06/29/2018 22: Updated Table 8: Taiwan - Restricted Substances to reflect latest requirements per BSMI
31: Corrected Word 84 value to 4163H
Rev. K 05/28/2019 6: Removed TGMR Bullet
bc: Removed APAC & EMEA addresses
Rev. L 07/10/2019 8 & 10: Revised Non-recoverable read errors to 10E14
Rev. M 05/13/2020
5: Updated Seagate Technology Support Services page
11: Section 2.4 Recording and interface technology, changed to - Recording technology = SMR
18: Replaced Regulatory Compliance and Safety information with URL and instructions
bc: Updated US HQ address
Rev. N 07-08-2020
9: Revised 3TB & 2TB heads & disks
9 & 12: Revised 2TB model weight
9 & 12: Revised Power-on & Standby to ready for 2TB model
10 & 17: Revised Acoustics for 2TB model
14: Revised to 5VDC & 12VDC
Seagate BarraCuda Product Manual, Rev. N 2
Contents
Seagate® Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 About the SATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.0 Drive Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2.1 LBA mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.3 Default logical geometry. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.4 Recording and interface technology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.5 Physical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.7 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7.1 Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.7.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.7.4 Power-management modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.8 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8.1 Ambient Temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8.2 Temperature gradient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8.3 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8.4 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8.5 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.8.6 Non-operating vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.9 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.9.1 Test for Prominent Discrete Tones (PDTs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.10 Electromagnetic immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.11 Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.11.1 Data loss under power interruption with write cache enabled . . . . . . . . . . . . . . . . . . . . . . 18
2.11.2 Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.12 HDD and SSD Regulatory Compliance and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.12.1 Regulatory models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.13 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Seagate BarraCuda Product Manual, Rev. N 3
Contents
3.0 Configuring and Mounting the Drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.3 SATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.0 SATA Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.2 SATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
4.3.3 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Seagate BarraCuda Product Manual, Rev. N 4
Figures
Figure 1 Location of the HDA temperature check point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 2 Attaching SATA cabling. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 3 Mounting dimensions (1 and 2-disk models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 4 Mounting dimensions (3 and 4-disk models). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Seagate BarraCuda Product Manual, Rev. N 5
For Seagate Product Support, visit: https://www.seagate.com/support
For Seagate Compliance, Safety, and Disposal, visit: https://www.seagate.com/support
For Firmware Download and Tools Download for Secure Erase, visit: https://www.seagate.com/support/downloads/
For information regarding online support and services, visit: http://www.seagate.com/contacts/
For information regarding Warranty Support, visit: http://www.seagate.com/support/warranty-and-replacements/
For information regarding data recovery services, visit: http://www.seagate.com/services-software/recover/
For Seagate OEM and Distribution partner and Seagate reseller portal, visit: http://www.seagate.com/partners
Seagate® Technology Support Services
Seagate BarraCuda Product Manual, Rev. N 6
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following
Seagate® BarraCuda® model drives:
These drives provide the following key features:
• Compliant with RoHS requirements in China and Europe.
• High instantaneous (burst) data-transfer rates (up to 600MB per second).
• Native Command Queuing with command ordering to increase performance in demanding applications.
•Quiet operation.
• SeaTools diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• 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.
ST8000DM004 ST6000DM003 ST4000DM004 ST3000DM007 ST2000DM005
Note
The host adapter may, optionally, emulate a master/slave environment to host software where two
devices on 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 BarraCuda Product Manual, Rev. N 7
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:
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.
ST8000DM004 ST6000DM003 ST4000DM004 ST3000DM007 ST2000DM005
Table 1 Drive specifications summary for 8TB & 6TB model
Drive Specification* ST8000DM004 ST6000DM003
Formatted capacity (512 bytes/sector)** 8000GB (8TB) 6000GB (6TB)
Guaranteed sectors 15,628,053,168 11,721,045,168
Heads 8 6
Disks 4 3
Bytes per sector
(4K physical emulated at 512-byte sectors) 4096
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density (max) 2294 kB/in
Track density (avg) 540 ktracks/in
Areal density (avg) 1203 Gb/in2
SATA interface transfer rate 600 MB/s
Maximum data transfer rate 190 MB/s 185 MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
Cache buffer 256MB
Height (max) 26.1mm / 1.028 in
Width (max) 101.6mm (± 0.25) / 4.0 in (± 0.010)
Length (max) 146.99mm / 5.787 in
Weight (typical) 630g / 1.389 lb 610g / 1.345 lb
Average latency 6.0 ms
Power-on to ready (typ) 15.0s
Standby to ready (typ) 15.0s
Startup current (typical) 12V 2.0A
Voltage tolerance (including noise) 5V ±5%
12V ±10%
Non-Operating (Ambient °C) –40° to 70°
Operating ambient temperature (min °C) 0°
Operating temperature (drive case max °C) 60°†
Temperature gradient 20°C per hour max (operating)
30°C per hour max (non-operating)
Relative humidity 5% to 90% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max) 30% per hour
Seagate BarraCuda Product Manual, Rev. N 8
* 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.
† Seagate does not recommend operating at sustained case temperatures above 60°C.
Operating at higher temperatures will reduce useful life of the product.
Wet bulb temperature (max) 30°C max (operating)
40°C max (non-operating)
Altitude, operating –304m to 3048m
(–1000 ft to 10,000 ft)
Altitude, non-operating
(below mean sea level, max)
–304m to12,192m
(–1000 ft to 40,000+ ft)
Operational shock (max) 80 Gs (read) / 70 Gs (write) at 2ms
Non-operational shock (max) 300 Gs at 2ms
Vibration, operating
10Hz to 22Hz: 0.25 Gs, Limited displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
Vibration, non-operating
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle*** 2.3 bels (typical)
2.5 bels (max)
Seek 2.5 bels (typical)
2.6 bels (max)
Non-recoverable read errors 1 per 1014 bits read
Rated workload
Average annualized workload rating: <55 TB/year.
The specifications for the product assumes the I/O workload does not exceed the average
annualized workload rate limit of 55 TB/year. Workloads exceeding the annualized rate may
degrade and impact reliability as experienced by the particular application. The average
annualized workload rate limit is in units of TB per calendar year.
Warranty
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 “Is my Drive 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.
Load/unload cycles 600,000 at 25°C, 50% rel. humidity
Supports hotplug operation per the
Serial ATA Revision 3.2 specification Yes
Note If the drive is powered-off before issuing flush cache command, in some instances,
the end user data in the DRAM cache might not be committed to the disk.
Table 1 Drive specifications summary for 8TB & 6TB model (continued)
Drive Specification* ST8000DM004 ST6000DM003
Seagate BarraCuda Product Manual, Rev. N 9
www.seagate.com Drive Specifications
Table 2 Drive specifications summary for 4TB, 3TB & 2TB model
Drive Specification* ST4000DM004 ST3000DM007 ST2000DM005
Formatted capacity (512 bytes/sector)** 4000GB (4TB) 3000GB (3TB) 2000GB (2TB)
Guaranteed sectors 7,814,037,168 5,860,533,168 3,907,029,168
Heads 4 4/3 3/2
Disks 2 2/1
Bytes per sector
(4K physical emulated at 512-byte sectors) 4096
Default sectors per track 63
Default read/write heads 16
Default cylinders 16,383
Recording density (max) 2294 kB/in
Track density (avg) 540 ktracks/in
Areal density (avg) 1203 Gb/in2
SATA interface transfer rate 600 MB/s
Maximum data transfer rate 190 MB/s 185 MB/s 190 MB/s
ATA data-transfer modes supported
PIO modes: 0 to 4
Multiword DMA modes: 0 to 2
Ultra DMA modes 0 to 6
Cache buffer 256MB
Height (max) 20.20mm / 0.795 in
Width (max) 101.6mm (± 0.25) / 4.0 in (± 0.010)
Length (max) 146.99mm / 5.787 in
Weight (typical) 490g / 1.08 lb
Average latency 6.0 ms
Power-on to ready (typ) 10.0s
Standby to ready (typ) 10.0s
Startup current (typical) 12V 2.0A
Voltage tolerance (including noise) 5V ±5%
12V ±10%
Non-Operating (Ambient °C) –40° to 70°
Operating ambient temperature (min °C) 0°
Operating temperature (drive case max °C) 60°†
Temperature gradient 20°C per hour max (operating)
30°C per hour max (non-operating)
Relative humidity 5% to 90% (operating)
5% to 95% (non-operating)
Relative humidity gradient (max) 30% per hour
Wet bulb temperature (max) 30°C max (operating)
40°C max (non-operating)
Altitude, operating –304m to 3048m
(–1000 ft to 10,000 ft)
Altitude, non-operating
(below mean sea level, max)
–304m to12,192m
(–1000 ft to 40,000+ ft)
Operational shock (max) 80 Gs (read) / 70 Gs (write) at 2ms
Non-operational shock (max) 300 Gs at 2ms 350 Gs at 2ms
Vibration, operating
10Hz to 22Hz: 0.25 Gs, Limited displacement
22Hz to 350Hz: 0.50 Gs
350Hz to 500Hz: 0.25 Gs
Seagate BarraCuda Product Manual, Rev. N 10
www.seagate.com Drive Specifications
* 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.
† Seagate does not recommend operating at sustained case temperatures above 60°C.
Operating at higher temperatures will reduce useful life of the product.
Vibration, non-operating
5Hz to 22Hz: 3.0 Gs
22Hz to 350Hz: 3.0 Gs
350Hz to 500Hz: 3.0 Gs
Drive acoustics, sound power
Idle*** 2.2 bels (typical)
2.4 bels (max)
Seek 2.4 bels (typical)
2.7 bels (max)
Non-recoverable read errors 1 per 1014 bits read
Rated workload
Average annualized workload rating: <55 TB/year.
The specifications for the product assumes the I/O workload does not exceed the average
annualized workload rate limit of 55 TB/year. Workloads exceeding the annualized rate may
degrade and impact reliability as experienced by the particular application. The average
annualized workload rate limit is in units of TB per calendar year.
Warranty
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 “Is my Drive 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.
Load/unload cycles 600,000 at 25°C, 50% rel. humidity
Supports hotplug operation per the
Serial ATA Revision 3.2 specification Yes
Note If the drive is powered-off before issuing flush cache command, in some instances,
the end user data in the DRAM cache might not be committed to the disk.
Table 2 Drive specifications summary for 4TB, 3TB & 2TB model (continued)
Drive Specification* ST4000DM004 ST3000DM007 ST2000DM005
Seagate BarraCuda Product Manual, Rev. N 11
www.seagate.com Drive Specifications
2.2 Formatted capacity
*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.
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
Model Formatted capacity* Guaranteed sectors Bytes per sector
8TB 8000GB 15,628,053,168
4096
6TB 6000GB 11,721,045,168
4TB 4000GB 7,814,037,168
3TB 3000GB 5,860,533,168
2TB 2000GB 3,907,029,168
Interface SATA
Recording technology SMR
Recording density (kBPI) 2294
Track density (ktracks/inch avg) 540
Areal density (Gb/in2)1203
Interface transfer rate (MB/s) 600
Data transfer rate (MB/s) up to 190
Seagate BarraCuda Product Manual, Rev. N 12
www.seagate.com Drive Specifications
2.5 Physical characteristics
2.6 Start/stop times
The start/stop times are listed below.
Time-to-ready may be longer than normal if the drive power is removed without going through normal OS powerdown
procedures.
Maximum height
8TB & 6TB 26.1mm / 1.028 in
4TB, 3TB & 2TB 20.20mm / 0.795 in
Maximum width 101.6mm / 4.0 in (± 0.010 in)
Maximum length 146.99mm / 5.787 in
Typical weight
8TB 630g / 1.389 lb
6TB 610g / 1.345 lb
4TB, 3TB& 2TB 490g / 1.08 lb
Cache buffer 256MB
Standard models ST8000DM004, ST6000DM003
(4 and 3-Disk)
ST4000DM004, ST3000DM007
(3 and 2-Disk)
ST2000DM005
(2 and 1-Disk)
Power-on to ready
(in seconds) 15 (typical) 10 (typical) 10 (typical)
Standby to ready
(in seconds) 15 (typical) 10 (typical) 10 (typical)
Ready to spindle stop
(in seconds) 18 (typical) 12 (typical) 10 (typical)
Seagate BarraCuda Product Manual, Rev. N 13
www.seagate.com Drive Specifications
2.7 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. Refer to Figure 2 on page 19.
2.7.1 Power consumption
Power requirements for the drives are listed in Table 3 and Table 4. 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. These power measurements
are done with DIPM enabled.
• Spinup current is measured from the time of power-on to the time that the drive spindle reaches operating speed.
• Read/Write current is measured with the heads on track, based on three 64 sector read or write operations every 100
ms.
• The drive supports three idle modes: Performance Idle mode, Active Idle mode and Low Power Idle mode. Refer to
Section 2.7.4 for power-management modes.
2.7.2 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 of 100 mV peak-to-peak square-wave injected noise at up
to 10MHz.
Table 3 DC power requirements for 8TB and 6TB models
Power dissipation Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle, Low Power 3.4 0.10 0.242
Read/Write 5.3 0.28 0.325
Standby 0.25 0.04 0.004
Sleep 0.25 0.04 0.004
Table 4 DC power requirements for 4TB, 3TB and 2TB models
Power dissipation Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle, Low Power 2.5 0.12 0.15
Read/Write 3.7 0.28 0.191
Standby 0.25 0.04 0.004
Sleep 0.25 0.04 0.004
Note Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.
Seagate BarraCuda Product Manual, Rev. N 14
www.seagate.com Drive Specifications
2.7.3 Voltage tolerance
Voltage tolerance (including noise):
•5VDC ±5%
• 12VDC ±10%
2.7.4 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 power-management modes:
•Active mode
The drive is in Active mode during the read/write and seek operations.
• Idle mode
The electronics remain powered, and the drive accepts all commands and returns to Active mode when disk access is
necessary.
•Standby mode
The drive enters Standby mode immediately when the host sends a Standby Immediate command. If the host has set
the standby timer, the drive enters Standby mode automatically after the drive has been inactive for a specifiable
length of time. The standby timer delay is established using a Standby or Idle command. In Standby mode, the elec-
tronics are in low power mode, the heads are parked and the spindle is at rest. The drive accepts all commands and
returns to Active mode when disk access is necessary.
• Sleep mode
The drive enters Sleep mode after receiving a Sleep command from the host. In Sleep mode, the electronics are in
low power mode, 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.
• 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 com-
mands and returns to Active mode when disk access is necessary.
Power modes Heads Spindle Electronics
Active Tracking Rotating Full Power
Idle, Performance Tracking Rotating Full Power
Idle, Active Floating Rotating Partial Power
Idle, Low Power Parked Rotating Partial Power
Standby Parked Stopped Low Power
Sleep Parked Stopped Low Power
Seagate BarraCuda Product Manual, Rev. N 15
www.seagate.com Drive Specifications
2.8 Environmental specifications
This section provides the temperature, humidity, shock, and vibration specifications for BarraCuda drives. 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 20 for base plate measurement location.
2.8.1 Ambient Temperature
† Seagate does not recommend operating at sustained case temperatures above 60°C.
Operating at higher temperatures will reduce useful life of the product.
Figure 1 Location of the HDA temperature check point
2.8.2 Temperature gradient
2.8.3 Humidity
2.8.3.1 Relative humidity
2.8.3.2 Wet bulb temperature
2.8.4 Altitude
Non-operating (Ambient) –40° to 70°C (–40° to 158°F)
Operating ambient (min °C) 0° (32°F)
Operating (Drive case max °C) 60° (140°F) †
Note Image is for reference only, may not represent actual drive
Operating 20°C per hour (68°F per hour max), without condensation
Non-operating 30°C per hour (54°F per hour max)
Operating 5% to 90% non-condensing (30% per hour max)
non-operating 5% to 95% non-condensing (30% per hour max)
Operating 30°C / 86°F (rated)
Non-operating 40°C / 104°F (rated)
Operating –304m to 3048m (–1000 ft. to 10,000 ft.)
Non-operating –304m to 12,192m (–1000 ft. to 40,000+ ft.)
HDA Temp.
Check Point
Seagate BarraCuda Product Manual, Rev. N 16
www.seagate.com Drive Specifications
2.8.5 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.
2.8.5.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 80
Gs (read) / 70 Gs (write) based on half-sine shock pulses of 2ms during read operations. Shocks should not be repeated more than
two times per second.
2.8.5.2 Non-operating shock
8TB, 6TB, 4TB & 3TB
The non-operating 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
2ms duration.
2TB
The non-operating 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
2ms duration.
2.8.5.3 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document
are specified below.
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.
2.8.6 Non-operating vibration
The maximum non-operating vibration levels that the drive may experience without incurring physical damage or degradation in
performance when subsequently put into operation are specified below.
10Hz to 22Hz 0.25 Gs (Limited displacement)
22Hz to 350Hz 0.50 Gs
350Hz to 500Hz 0.25 Gs
5Hz to 22Hz 3.0 Gs (Limited displacement)
22Hz to 350Hz 3.0 Gs
350Hz to 500Hz 3.0 Gs
Seagate BarraCuda Product Manual, Rev. N 17
www.seagate.com Drive Specifications
2.9 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.
*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.
2.9.1 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.
2.10 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 6.
Note
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
Table 5 Fluid Dynamic Bearing (FDB) motor acoustics
Idle* Seek
8TB & 6TB models 2.3 bels (typical)
2.5 bels (max)
2.5 bels (typical)
2.6 bels (max)
4TB, 3TB & 2TB models 2.2 bels (typical)
2.4 bels (max)
2.4 bels (typical)
2.7 bels (max)
Table 6 Radio frequency environments
Test Description Performance
level
Reference
standard
Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN61000-4-2: 95
Radiated RF immunity 80MHz to 1,000MHz, 3 V/m,
80% AM with 1kHz sine
900MHz, 3 V/m, 50% pulse modulation @ 200Hz
A EN61000-4-3: 96
ENV50204: 95
Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on external I/O B EN61000-4-4: 95
Surge immunity ± 1 kV differential, ± 2 kV common,
AC mains
B EN61000-4-5: 95
Conducted RF immunity 150kHz to 80MHz, 3 Vrms, 80% AM with 1kHz sine A EN61000-4-6: 97
Voltage dips, interrupts 0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
C
C
C
B
EN61000-4-11: 94
Seagate BarraCuda Product Manual, Rev. N 18
www.seagate.com Drive Specifications
2.11 Warranty
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 “Is my Drive 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.
2.11.1 Data loss under power interruption with write cache enabled
Drive preserves its data during all operations except in cases where power to the drive is interrupted during write operations. This
could result in either an uncorrected data error being reported, or the entire sector/track becoming unreadable. This can be
permanently recovered by rewriting to the same location on the drive. Additionally any data present in the DRAM buffer will not be
written to the disk media, additionally, the drive will not be able to return the original data.
In order to prevent this data loss, the host should issue a standby immediate or flush cache command before a controlled power off
operation to the drive.
2.11.2 Storage
Maximum storage periods are 180 days within original unopened Seagate shipping package or 60 days unpackaged within the
defined non-operating limits (refer to environmental section in this manual). Storage can be extended to 1 year packaged or
unpackaged under optimal environmental conditions (25°C, <40% relative humidity non-condensing, and non-corrosive
environment). During any storage period the drive non-operational temperature, humidity, wet bulb, atmospheric conditions,
shock, vibration, magnetic and electrical field specifications should be followed.
2.12 HDD and SSD Regulatory Compliance and Safety
For the latest regulatory and compliance information see: https://www.seagate.com/support/ scroll to bottom of page and click
the Seagate HDD and SSD Regulatory Compliance and Safety link.
2.12.1 Regulatory models
The following regulatory model number represent all features and configurations within the series:
Regulatory Model Numbers: SKR004 = 8TB & 6TB
SKR002 = 4TB, 3TB & 2TB
2.13 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.
Seagate BarraCuda Product Manual, Rev. N 19
www.seagate.com Configuring and Mounting the Drive
3.0 Configuring and Mounting the Drive
This section contains the specifications and instructions for configuring and mounting the drive.
3.1 Handling 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 users mount 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.
3.2 Configuring 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.
3.3 SATA 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 7 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
Each cable is keyed to ensure correct orientation. BarraCuda drives support latching SATA connectors.
Seagate BarraCuda Product Manual, Rev. N 20
3.4 Drive 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 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 0.140 inch (3.56 mm) into the bottom or side mounting holes.
• Do not overtighten the mounting screws (maximum torque: 6 inch-lb).
Figure 3 Mounting dimensions (1 and 2-disk models)
Max: .795" or 20.20 mm
Alterntive: .783" .012" or 19.90 0.30 mm
4X 6-32 UNC-2B
3 MINIMUM THREAD DEPTH
0.14 MAXIMUM FASTENER
PENETRATION
3X 6-32 UNC-2B
3 MINIMUM THREAD DEPTH
0.14 MAXIMUM FASTENER
PENETRATION BOTH SIDES
Seagate BarraCuda Product Manual, Rev. N 22
4.0 SATA 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.
4.1 Hot-Plug compatibility
BarraCuda drives incorporate connectors which enable users to hot plug these drives in accordance with the SATA Revision 3.2
specification. This specification can be downloaded from www.serialata.org.
4.2 SATA device plug connector pin definitions
Table 7 summarizes the signals on the SATA interface and power connectors.
Notes
1. All pins are in a single row, with a 1.27 mm (0.050 in) pitch.
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 con-
figuration.
• All used voltage pins (Vx) must be terminated.
Table 7 SATA connector pin definitions
Segment Pin Function Definition
Signal S1 Ground 2nd mate
S2 A+ Differential signal pair A from Phy
S3 A-
S4 Ground 2nd mate
S5 B- Differential signal pair B from Phy
S6 B+
S7 Ground 2nd mate
Key and spacing separate signal and power segments
Power P1 V33 3.3V power
P2 V33 3.3V power
P3 V33 3.3V power, pre-charge, 2nd mate
P4 Ground 1st mate
P5 Ground 2nd mate
P6 Ground 2nd mate
P7 V55V power, pre-charge, 2nd mate
P8 V55V power
P9 V55V power
P10 Ground 2nd mate
P11 Ground or LED signal If grounded, drive does not use deferred spin
P12 Ground 1st mate.
P13 V12 12V power, pre-charge, 2nd mate
P14 V12 12V power
P15 V12 12V power
Seagate BarraCuda Product Manual, Rev. N 23
www.seagate.com SATA Interface
4.3 Supported 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 31 for details and subcommands used in the S.M.A.R.T. implementation.
Table 8 SATA standard commands
Command name Command code (in hex)
Check Power Mode E5H
Device Configuration Freeze Lock B1H / C1H
Device Configuration Identify B1H / C2H
Device Configuration Restore B1H / C0H
Device Configuration Set B1H / C3H
Device Reset 08H
Download Microcode 92H
Execute Device Diagnostics 90H
Flush Cache E7H
Flush Cache Extended EAH
Format Track 50H
Identify Device ECH
Idle E3H
Idle Immediate E1H
Initialize Device Parameters 91H
Read Buffer E4H
Read DMA C8H
Read DMA Extended 25H
Read DMA Without Retries C9H
Read Log Ext 2FH
Read Multiple C4H
Read Multiple Extended 29H
Read Native Max Address F8H
Read Native Max Address Extended 27H
Read Sectors 20H
Read Sectors Extended 24H
Read Sectors Without Retries 21H
Read Verify Sectors 40H
Read Verify Sectors Extended 42H
Read Verify Sectors Without Retries 41H
Recalibrate 10H
Security Disable Password F6H
Security Erase Prepare F3H
Security Erase Unit F4H
Security Freeze F5H
Security Set Password F1H
Security Unlock F2H
Seagate BarraCuda Product Manual, Rev. N 24
www.seagate.com SATA Interface
Seek 70H
Set Features EFH
Set Max Address F9H
Note: Individual Set Max Address
commands are identified by the value
placed in the Set Max Features register as
defined to the right.
Address:
Password:
Lock:
Unlock:
Freeze Lock:
00H
01H
02H
03H
04H
Set Max Address Extended 37H
Set Multiple Mode C6H
Sleep E6H
S.M.A.R.T. Disable Operations B0H / D9H
S.M.A.R.T. Enable/Disable Autosave B0H / D2H
S.M.A.R.T. Enable Operations B0H / D8H
S.M.A.R.T. Execute Offline B0H / D4H
S.M.A.R.T. Read Attribute Thresholds B0H / D1H
S.M.A.R.T. Read Data B0H / D0H
S.M.A.R.T. Read Log Sector B0H / D5H
S.M.A.R.T. Return Status B0H / DAH
S.M.A.R.T. Save Attribute Values B0H / D3H
S.M.A.R.T. Write Log Sector B0H / D6H
Standby E2H
Standby Immediate E0H
Write Buffer E8H
Write DMA CAH
Write DMA Extended 35H
Write DMA FUA Extended 3DH
Write DMA Without Retries CBH
Write Log Extended 3FH
Write Multiple C5H
Write Multiple Extended 39H
Write Multiple FUA Extended CEH
Write Sectors 30H
Write Sectors Without Retries 31H
Write Sectors Extended 34H
Write Uncorrectable 45H
Table 8 SATA standard commands (continued)
Command name Command code (in hex)
Seagate BarraCuda Product Manual, Rev. N 25
www.seagate.com SATA 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 “Supported ATA commands” on page 23. 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 9 Identify Device commands
Word Description Value
0
Configuration information:
• Bit 15: 0 = ATA; 1 = ATAPI
• Bit 7: removable media
• Bit 6: removable controller
• Bit 0: reserved
0C5AH
1 Number of logical cylinders 16,383
2
Specific configuration:
37C8h Device requires SET FEATURES subcommand to spin-up after power-up
and IDENTIFY DEVICE data is incomplete.
738Ch Device requires SET FEATURES subcommand to spin-up after power-up
and IDENTIFY DEVICE data is complete.
8C73h Device does not require SET FEATURES subcommand to spin-up after
power-up and IDENTIFY DEVICE data is incomplete.
C837h Device does not require SET FEATURES subcommand to spin-up after
power-up and IDENTIFY DEVICE data is complete.
C837H
3 Number of logical heads 16
4 Retired 0000H
5 Retired 0000H
6 Number of logical sectors per logical track: 63 003FH
7–9 Retired 0000H
10–19 Serial number: (20 ASCII characters, 0000H = none) ASCII
20 Retired 0000H
21 Retired 0400H
22 Obsolete 0000H
23–26 Firmware revision
(8 ASCII character string, padded with blanks to end of string) x.xx
27–46 Drive 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) 8010H
48
Trusted Computing feature set options:
15 Shall be cleared to zero
14 Shall be set to one
13:1 Reserved for the Trusted Computing Group
0 Trusted Computing feature set is supported
4000H
49 Standard Standby timer, IORDY supported and may be disabled 2F00H
Seagate BarraCuda Product Manual, Rev. N 26
www.seagate.com SATA Interface
50
Capabilities: (see 7.17.7.17)
15 Shall be cleared to zero
14 Shall be set to one
13:2 Reserved
1 Obsolete
0 Shall be set to one to indicate a vendor specific Standby timer value minimum
4000H
51 PIO data-transfer cycle timing mode 0200H
52 Retired (Obsolete) 0200H
53
15:8 Free-fall Control Sensitivity
7:3 Reserved
2 the fields reported in word 88 are valid
1 the fields reported in words (70:64) are valid
0 Obsolete
0007H
54 Number of current logical cylinders (Obsolete) xxxxH
55 Number of current logical heads (Obsolete) xxxxH
56 Number of current logical sectors per logical track (Obsolete) xxxxH
57–58 Current capacity in sectors (Obsolete) xxxxH
59
15 The BLOCK ERASE EXT command is supported
14 The OVERWRITE EXT command is supported
13 The CRYPTO SCRAMBLE EXT command is supported
12 The Sanitize feature set is supported
11:9 Reserved
8 Multiple logical sector setting is valid
7:0 Current setting for number of logical sectors that shall be transferred per DRQ
data block on READ/WRITE Multiple commands
5C10H
60–61
Total number of user-addressable LBA sectors available
(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.
0FFFFFFFh*
62 Obsolete 0000H
63 Multiword DMA active and modes supported
(see note following this table) xx07H
64 Advanced PIO modes supported (modes 3 and 4 supported) 0003H
65 Minimum multiword DMA transfer cycle time per word (120 nsec) 0078H
66 Recommended multiword DMA transfer cycle time per word (120 nsec) 0078H
67 Minimum PIO cycle time without IORDY flow control (240 nsec) 0078H
68 Minimum PIO cycle time with IORDY flow control (120 nsec) 0078H
Table 9 Identify Device commands (continued)
Word Description Value
Seagate BarraCuda Product Manual, Rev. N 27
www.seagate.com SATA Interface
69
Additional Supported
15 CFast Specification Support
14 Deterministic data in trimmed LBA range(s) is supported
13 Long Physical Sector Alignment Error Reporting Control is supported
12 Obsolete
11 READ BUFFER DMA is supported
10 WRITE BUFFER DMA is supported
9 Obsolete
8 DOWNLOAD MICROCODE DMA is supported
7 Reserved for IEEE 1667
6 0 = Optional ATA device 28-bit commands supported
5 Trimmed LBA range(s) returning zeroed data is supported
4 Device Encrypts All User Data
3 Extended Number of User Addressable Sectors is supported
2 All write cache is non-volatile
1:0 Reserved
0000H
70–74 ATA-reserved 0000H
75 Queue depth 001FH
76 SATA capabilities xxxxH
77 Reserved for future SATA definition xxxxH
78 SATA features supported xxxxH
79 SATA features enabled xxxxH
80 Major version number 07F0H
81 Minor version number 006DH
82 Command sets supported 306BH
83 Command sets supported 7561H
84 Command sets support extension (see note following this table) 4163H
85 Command sets enabled 30xxH
86 Command sets enabled B441H
87 Command sets enable extension 6173H
88 Ultra DMA support and current mode (see note following this table) xx7FH
89 Security erase time xxxxH
90 Enhanced security erase time xxxxH
92 Master password revision code FFFEH
93 Hardware reset value xxxxH
94 Automatic acoustic management D0D0H
95–99 ATA-reserved 0000H
100–103
Total number of user-addressable LBA sectors available (see Section 2.2 for
related information). These words are required for drives that support the 48-bit
addressing feature. Maximum value: 0000FFFFFFFFFFFFh.
ST8000DM004 = 15,628,053,168
ST6000DM003 = 11,721,045,168
ST4000DM004 = 7,814,037,168
ST3000DM007 = 5,860,533,168
ST2000DM005 = 3,907,029,168
104-105 ATA-reserved 0000H
Table 9 Identify Device commands (continued)
Word Description Value
Seagate BarraCuda Product Manual, Rev. N 28
www.seagate.com SATA Interface
106 Physical sector size / logical sector size 6003H
107 ATA-reserved 0000H
108-111 The 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.
112-118 ATA-reserved 0000H
119 Commands and feature sets supported 41DEH
120 Commands and feature sets supported or enabled 409CH
121-127 ATA-reserved 0000H
128 Security status 0021H
129–159 Seagate-reserved xxxxH
160–167 ATA-reserved 0000H
168 Device Nominal Form Factor 0002H
169-205 ATA-reserved 0000H
206 SCT Command Transport 10A5H
207-208 ATA-reserved 0000H
209 Alignment of logical blocks within a physical block 4000H
210-216 ATA-reserved 0000H
217 Nominal media rotation rate 175CH
218-221 ATA-reserved 0000H
222 Transport major version number 107FH
223-229 ATA-reserved 0000H
230-233 Extended Number of User Addressable Sectors
ST8000DM004 = 15,628,053,168
ST6000DM003 = 11,721,045,168
ST4000DM004 = 7,814,037,168
ST3000DM007 = 5,860,533,168
ST2000DM005 = 3,907,029,168
234–254 ATA-reserved 0000H
255 Integrity word xxA5H
Note Advanced Power Management (APM) and Automatic Acoustic
Management (AAM) features are not supported.
Note See the bit descriptions below for words 63, 84, and 88 of the Identify Drive data.
Table 9 Identify Device commands (continued)
Word Description Value
Seagate BarraCuda Product Manual, Rev. N 29
www.seagate.com SATA Interface
Description (if bit is set to 1)
Bit Word 63
0 Multiword DMA mode 0 is supported.
1 Multiword DMA mode 1 is supported.
2 Multiword DMA mode 2 is supported.
8 Multiword DMA mode 0 is currently active.
9 Multiword DMA mode 1 is currently active.
10 Multiword DMA mode 2 is currently active.
Bit Word 84
0 SMART error login is supported.
1 SMART self-test is supported.
2 Media serial number is supported.
3 Media Card Pass Through Command feature set is supported.
4 Streaming feature set is supported.
5 GPL feature set is supported.
6 WRITE DMA FUA EXT and WRITE MULTIPLE FUA EXT commands are supported.
7 WRITE DMA QUEUED FUA EXT command is supported.
8 64-bit World Wide Name is supported.
9-10 Obsolete.
11-12 Reserved for TLC.
13 IDLE IMMEDIATE command with IUNLOAD feature is supported.
14 Shall be set to 1.
15 Shall be cleared to 0.
Bit Word 88
0 Ultra DMA mode 0 is supported.
1 Ultra DMA mode 1 is supported.
2 Ultra DMA mode 2 is supported.
3 Ultra DMA mode 3 is supported.
4 Ultra DMA mode 4 is supported.
5 Ultra DMA mode 5 is supported.
6 Ultra DMA mode 6 is supported.
8 Ultra DMA mode 0 is currently active.
9 Ultra DMA mode 1 is currently active.
10 Ultra DMA mode 2 is currently active.
11 Ultra DMA mode 3 is currently active.
12 Ultra DMA mode 4 is currently active.
13 Ultra DMA mode 5 is currently active.
14 Ultra DMA mode 6 is currently active.
Seagate BarraCuda Product Manual, Rev. N 30
www.seagate.com SATA 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 10 Set Features command
02HEnable write cache (default)
03HSet transfer mode (based on value in Sector Count register)
Sector Count register values:
00HSet PIO mode to default (PIO mode 2)
01HSet PIO mode to default and disable IORDY (PIO mode 2)
08HPIO mode 0
09HPIO mode 1
0AHPIO mode 2
0BHPIO mode 3
0CHPIO mode 4 (default)
20HMultiword DMA mode 0
21HMultiword DMA mode 1
22HMultiword DMA mode 2
40HUltra DMA mode 0
41HUltra DMA mode 1
42HUltra DMA mode 2
43HUltra DMA mode 3
44HUltra DMA mode 4
45HUltra DMA mode 5
46HUltra DMA mode 6
06HEnable the PUIS feature set
07HPUIS feature set device spin-up
10HEnable use of SATA features
55HDisable read look-ahead (read cache) feature
82HDisable write cache
86HDisable the PUIS feature set
90HDisable use of SATA features
AAHEnable read look-ahead (read cache) feature (default)
F1HReport full capacity available
Note At power-on, or after a hardware or software reset, the
default values of the features are as indicated above.
Seagate BarraCuda Product Manual, Rev. N 31
www.seagate.com SATA 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 Draft ATA-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 disabled. Users must have a recent BIOS or software package that supports S.M.A.R.T.
to enable this feature. The table below shows the S.M.A.R.T. command codes that the drive uses.
Table 11 S.M.A.R.T. commands
Code in features register S.M.A.R.T. command
D0HS.M.A.R.T. Read Data
D2HS.M.A.R.T. Enable/Disable Attribute Autosave
D3HS.M.A.R.T. Save Attribute Values
D4HS.M.A.R.T. Execute Off-line Immediate (runs DST)
D5HS.M.A.R.T. Read Log Sector
D6HS.M.A.R.T. Write Log Sector
D8HS.M.A.R.T. Enable Operations
D9HS.M.A.R.T. Disable Operations
DAHS.M.A.R.T. Return Status
Note If an appropriate code is not written to the Features Register, the
command is aborted and 0x04 (abort) is written to the Error register.
Seagate Technology LLC
AMERICAS Seagate Technology LLC 47488 Kato Road, Fremont, California 94538, United States, 510-661-1000
Publication Number: 100805918, Rev. N
July 2020