Seagate ST8000NE0001 User manual

100780707, Rev. C
January 2017
ST8000NE0001
ST6000VN0001
Enterprise
NAS HDD
SATA Product Manual

© 2017 Seagate Technology LLC. All rights reserved.
Publication number: 100780707, Rev. C January 2017
Seagate, Seagate Technology and the Spiral logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Power Choice 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 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 and Description of changes
Rev. A 11-05-2015 Initial release.
Rev. B 02-11-2016
4-5 & 23-24: Corrected ST models to ST8000NE0001 & ST6000NE0001
5 & 12: Updated Temperatures & Wet Bulb
6 & 15: Revised Rated Workload statement
16: Revised Australian RCM text
19-20: Revised Fastener penetration depth = 0.120 inches in text & Mechanical drawing
Rev. C 01-13-2017
fc, 4-5 & 26-27: Revised model number to - ST8000NE0001
fc, 4-5 & 26-27: Revised model number to - ST6000VN0001
5 & 7: Revised Densities & cache
6 & 14: Revised Nonoperating Vibe to 5.0 Grms
6 & 16: Revised Error rate to 10^15 & removed [<] from Rated Workload
9: Added Table 3 for 6TB DC power
12: Revised Manufacturer Default Timer Value for Idle_a to 100ms
16: Added MSIP Korean text for Class B device warning
17: Revised to China RoHS2}
21: Added [6TB] to mechanical drawing - Figure 4
22: Added new mechanical drawing - Figure 5 for 8TB drive

Seagate Enterprise NAS HDD Product Manual, Rev. C 2
Contents
Seagate® Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.1 LBA mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.4 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5.1 Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5.4 Extended Power Conditions - PowerChoiceTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6 Environmental specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.1 Drive case temperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.2 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.3 Temperature gradient . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.4 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.5 Altitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.6.6 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.6.7 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.7 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.8 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.9 Electromagnetic immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.10.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . . . . . . . . . . . 16
2.11 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11.2 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.11.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.12 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.12.1 European Union Restriction of Hazardous Substances (RoHS) Directive. . . . . . . . . . . . . . 18
2.12.2 China Requirements — China RoHS 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.12.3 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.13 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3.4.1 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.2 Serial ATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Seagate Enterprise NAS HDD Product Manual, Rev. C 3
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/data-recovery-services/
For Seagate OEM, Distribution partner portal and reseller portal, visit: http://www.seagate.com/partners
Seagate® Technology Support Services

Seagate Enterprise NAS HDD Product Manual, Rev. C 4
Introduction
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following: Seagate® Enterprise NAS HDD model
drives:.
These drives provide the following key features:
• 7200 RPM spindle speed.
• PowerChoice™ for selectable power savings
• Top Cover Attached motor for excellent vibration tolerance
• High instantaneous (burst) data-transfer rates (up to 600MB per second).
• Perpendicular recording technology provides the drives with increased areal density.
• State-of-the-art cache and on-the-fly error-correction algorithms.
• Native Command Queuing with command ordering to increase performance in demanding applications.
• Full-track multiple-sector transfer capability without local processor intervention.
• Compliant with RoHS requirements in China and Europe
• SeaTools™ diagnostic software performs a drive self-test that eliminates unnecessary drive returns.
• Support for S.M.A.R.T. drive monitoring and reporting.
• Supports latching SATA cables and connectors.
• Worldwide Name (WWN) capability uniquely identifies the drive.
1.1 About the Serial ATA interface
The Serial ATA interface provides several advantages over the traditional (parallel) ATA interface. The primary advantages include:
• Easy installation and configuration with true plug-and-play connectivity. It is not necessary to set any jumpers or other configura-
tion options.
• Thinner and more flexible cabling for improved enclosure airflow and ease of installation.
• Scalability to higher performance levels.
In addition, Serial ATA makes the transition from parallel ATA easy by providing legacy software support. Serial ATA was designed to
allow users to install a Serial ATA host adapter and Serial ATA disk drive in current systems and expect all existing applications to work
as normal.
The Serial ATA interface connects each disk drive in a point-to-point configuration with the Serial ATA host adapter. There is no
master/slave relationship with Serial ATA devices like there is with parallel ATA. If two drives are attached on one Serial ATA host
adapter, the host operating system views the two devices as if they were both “masters” on two separate ports. This essentially
means both drives behave as if they are Device 0 (master) devices.
The Serial ATA host adapter and drive share the function of emulating parallel ATA device behavior to provide backward
compatibility with existing host systems and software. The Command and Control Block registers, PIO and DMA data transfers, resets,
and interrupts are all emulated.
The Serial ATA host adapter contains a set of registers that shadow the contents of the traditional device registers, referred to as the
Shadow Register Block. All Serial ATA devices behave like Device 0 devices. For additional information about how Serial ATA emulates
parallel ATA, refer to the“Serial ATA: High Speed Serialized AT Attachment” specification. The specification can be downloaded from
www.serialata.org.
Standard 512e models
ST8000NE0001 & ST6000VN0001
Note
The host adapter may, optionally, emulate a master/slave environment to host software where two devices on separate
Serial ATA ports are represented to host software as a Device 0 (master) and Device 1 (slave) accessed at the same set of host
bus addresses. A host adapter that emulates a master/slave environment manages two sets of shadow registers. This is not a
typical Serial ATA environment.

Seagate Enterprise NAS HDD Product Manual, Rev. C 5
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 the following tables are for quick reference. For details on specification measurement or definition, see the
appropriate section of this manual.
Table 1 Drive specifications summary
Standard 512e models
ST8000NE0001 & ST6000VN0001
Drive specification ST8000NE0001 ST6000VN0001
Formatted (512 bytes/sector)* 8TB 6TB
Guaranteed sectors 15,628,053,168 11,721,045,168
Heads 12
Discs 6
Bytes per physical sector 4096
Bytes per logical sector 512
Recording density, KBPI (Kb/in max) 2241 1981
Track density, KTPI (ktracks/in avg.) 362 320
Areal density, (Gb/in2 avg) 802 633
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2546 2317
Sustained data transfer rate OD (max) 237MiB/s 216MiB/s
I/O data-transfer rate (MB/s max) 600
ATA data-transfer modes supported
PIO modes 0–4
Multiword DMA modes 0–2
Ultra DMA modes 0–6
Cache buffer 256MB (259,072KB) 128MB (129,536KB)
Weight: (maximum) 780g (1.72 lb)
Average latency 4.16ms
Power-on to ready (sec) 25 (typ) / 30 (max)
Standby to ready (sec) 25 (typ) / 30 (max)
Startup current (typical) 12V (peak) 2.0A
Voltage tolerance (including noise) 5V ±5%
12V ±5%
Non-Operating temperature (Ambient °C) –40 to 70
Operating temperature (Ambient min °C) 5
Operating temperature (Drive case max °C) 60
Temperature gradient (per hour max) 20°C (operating)
30°C (nonoperating)
Relative humidity 5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 30% per hour max
Wet bulb temperature (max) 26°C (operating)
29°C (nonoperating)
Altitude, operating –304.8 m to 3,048 m
(–1000 ft to 10,000+ ft)

Seagate Enterprise NAS HDD Product Manual, Rev. C 6
Drive specifications
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
**During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.
Altitude, nonoperating
(below mean sea level, max)
–304.8 m to 12,192 m
(–1000 ft to 40,000+ ft)
Operational Shock (max at 2 ms) Read 70 Gs
Write 40 Gs
Non-Operational Shock (max at 2 ms) 250 Gs
Vibration, operating
5–22 Hz: 0.25 Gs, Limited displacement
22–350 Hz: 0.50 Gs
350–500 Hz: 0.25 Gs
Operation Rotational vibration 20–1500Hz: 12.5 rads/s²
Vibration, nonoperating 10–500 Hz: 5.0 Grms ref
Drive acoustics, sound power (bels)
Idle** 2.8 (typical)
3.0 (max)
Performance seek 3.0 (typical)
3.4 (max)
Nonrecoverable read errors 1 sector per 1015 bits read
Annualized Failure Rate (AFR) 0.73% based on 8760 POH
Rated Workload
Average annualized workload rating: 300 TB/year.
The AFR specification for the product assumes the I/O workload does not exceed the average
annualized workload rate limit of 300 TB/year. Workloads exceeding the annualized rate may
degrade the product AFR 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 the “Is my Drive under Warranty” link. The following are required to be
provided: the drive serial number, model number (or part number) and country of purchase. The
system will display the warranty information for the drive.
Load-unload cycles 300,000
Supports Hotplug operation per
Serial ATA Revision 3.2 specification Yes
Drive specification ST8000NE0001 ST6000VN0001

Seagate Enterprise NAS HDD Product Manual, Rev. C 7
Drive specifications
2.2 Formatted capacity
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
2.2.1 LBA mode
When addressing these drives in LBA mode, all blocks (sectors) are consecutively numbered from 0 to n–1, where n is the number of
guaranteed sectors as defined above.
See Section 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 Recording and interface technology
2.4 Start/stop times
Formatted capacity* Guaranteed sectors Bytes per physical sector Bytes per logical sector
8TB 15,628,053,168 4096 512
6TB 11,721,045,168
8TB models 6TB models
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 2241 1981
Track density, KTPI (ktracks/in avg) 362 320
Areal density (Gb/in2avg) 802 633
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 2546 2317
Sustained data transfer rate (max) 237 MiB/s 216 MiB/s
I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)
Power-on to Ready (sec) 25 (max)
Standby to Ready (sec) 30 (max)
Ready to spindle stop (sec) 12 (max)

Seagate Enterprise NAS HDD Product Manual, Rev. C 8
Drive specifications
2.5 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 2 on page 20.
2.5.1 Power consumption
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives
tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.
*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.
Table 2 DC power requirements (8TB models)
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.33 0.58 8.63
Advanced Idle Current *
Idle_A 0.19 0.55 7.53
Idle_B 0.13 0.48 6.38
Idle_C 0.14 0.28 4.08
Standby_Z 0.12 0.01 0.71
Maximum Start Current
DC (peak DC) 0.54 1.91 25.60
AC (Peak DC) 0.64 2.30
Delayed Motor Start (DC max) 0.21 0.72
Peak operating current (random read 4K16Q):
Typical DC 0.23 0.64 8.80
Maximum DC 0.23 0.65
Maximum DC (peak) 0.79 2.13
Peak operating current (random write 4K16Q)
Typical DC 0.25 0.66 9.10
Maximum DC 0.25 0.66
Maximum DC (peak) 0.51 2.46
Peak operating current (sequential read 64K16Q)
Typical DC 0.54 0.60 9.84
Maximum DC 0.54 0.60
Maximum DC (peak) 0.86 1.02
Peak operating current (sequential write 64K16Q)
Typical DC 0.45 0.62 9.72
Maximum DC 0.46 0.62
Maximum DC (peak) 0.57 1.03

Seagate Enterprise NAS HDD Product Manual, Rev. C 9
Drive specifications
Table 3 DC power requirements (6TB models)
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.19 0.59 8.00
Advanced Idle Current *
Idle_A 0.14 0.60 7.85
Idle_B 0.13 0.53 6.97
Idle_C 0.13 0.31 4.43
Standby_Z 0.11 0.01 0.67
Maximum Start Current
DC (peak DC) 0.37 2.28 29.21
AC (Peak DC) 0.56 2.95 38.20
Delayed Motor Start (DC max) 0.12 0.01 0.73
Peak operating current (random read 4K16Q):
Typical DC 0.22 0.79 10.62
Maximum DC 0.23 0.84 11.21
Maximum DC (peak) 1.17 2.31 33.57
Peak operating current (random write 4K16Q)
Typical DC 0.22 0.65 8.91
Maximum DC 0.23 0.70 9.55
Maximum DC (peak) 1.45 3.08 44.21
Peak operating current (sequential read 64K16Q)
Typical DC 0.52 0.64 10.32
Maximum DC 0.54 0.69 10.98
Maximum DC (peak) 0.72 1.08 16.56
Peak operating current (sequential write 64K16Q)
Typical DC 0.44 0.68 10.35
Maximum DC 0.46 0.72 10.94
Maximum DC (peak) 0.60 1.06 15.72

Seagate Enterprise NAS HDD Product Manual, Rev. C 10
Drive specifications
2.5.1.1 Typical current profiles
Figure 1. Typical 5V & 12V startup and operation current profile (4TB)
2.5.2 Conducted noise
Input noise ripple is measured at the host system power supply across an equivalent 80-ohm resistive load on the +12 V line or an
equivalent 15-ohm resistive load on the +5V line.
• Using 12V power, the drive is expected to operate with a maximum of 120mV peak-to-peak square-wave injected noise at up to
10MHz.
• Using 5V power, the drive is expected to operate with a maximum of 100mV peak-to-peak square-wave injected noise at up to
10MHz.
2.5.3 Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%
12V ± 5%
Note Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

Seagate Enterprise NAS HDD Product Manual, Rev. C 11
Drive specifications
2.5.4 Extended Power Conditions - PowerChoiceTM
Utilizing the load/unload architecture a programmable power management interface is provided to tailor systems for reduced
power consumption and performance requirements.
The table below lists the supported power conditions available in PowerChoice. Power conditions are ordered from highest power
consumption (and shortest recovery time) to lowest power consumption (and longest recovery time) as follows: Idle_a power >=
Idle_b power >= Idle_c power >= Standby_z power. The further users go down in the table, the more power savings is actualized. For
example, Idle_b results in greater power savings than the Idle_a power condition. Standby results in the greatest power savings.
Each power condition has a set of current, saved and default settings. Default settings are not modifiable. Default and saved settings
persist across power-on resets. The current settings do not persist across power-on resets. At the time of manufacture, the default,
saved and current settings are in the Power Conditions log match.
PowerChoice is invoked using one of two methods
• Automatic power transitions which are triggered by expiration of individual power condition timers. These timer values may be
customized and enabled using the Extended Power Conditions (EPC) feature set using the standardized Set Features command
interface.
• Immediate host commanded power transitions may be initiated using an EPC Set Features "Go to Power Condition" subcommand
to enter any supported power condition. Legacy power commands Standby Immediate and Idle Immediate also provide a
method to directly transition the drive into supported power conditions.
PowerChoice exits power saving states under the following conditions
• Any command which requires the drive to enter the PM0: Active state (media access)
•Poweronreset
PowerChoice provides the following reporting methods for tracking purposes
Check Power Mode Command
• Reports the current power state of the drive
Identify Device Command
• EPC Feature set supported flag
• EPC Feature enabled flag is set if at least one Idle power condition timer is enabled
Power Condition Log reports the following for each power condition
• Nominal recovery time from the power condition to active
• If the power condition is Supported, Changeable, and Savable
• Default enabled state, and timer value
• Saved enabled state, and timer value
• Current enabled state, and timer value
S.M.A.R.T. Read Data Reports
• Attribute 192 - Emergency Retract Count
• Attribute 193 - Load/Unload Cycle Count
Power Condition Name Power Condition ID Description
Idle_a 81HReduced electronics
Idle_b 82HHeads unloaded. Disks spinning at full RPM
Idle_c 83HHeads unloaded. Disks spinning at reduced RPM
Standby_z 00HHeads unloaded. Motor stopped (disks not spinning)

Seagate Enterprise NAS HDD Product Manual, Rev. C 12
Drive specifications
PowerChoice Manufacture Default Power Condition Timer Values
Default power condition timer values have been established to assure product reliability and data integrity. A minimum timer value
threshold of two minutes ensures the appropriate amount of background drive maintenance activities occur. Attempting to set a
timer values less than the specified minimum timer value threshold will result in an aborted EPC "Set Power Condition Timer"
subcommand.
Setting power condition timer values less than the manufacturer specified defaults or issuing the EPC "Go to Power Condition"
subcommand at a rate exceeding the default timers may limit this products reliability and data integrity.
PowerChoice Supported Extended Power Condition Feature Subcommands
PowerChoice Supported Extended Power Condition Identifiers
Power Condition Name Manufacturer Default Timer Values
Idle_a 100 ms
Idle_b 2 min
Idle_c 10 min
Standby_z 15 min
EPC Subcommand Description
00HRestore Power Condition Settings
01HGo to Power Condition
02HSet Power Condition Timer
03HSet Power Condition State
04HEnable EPC Feature Set
05HDisable EPC Feature Set
Power Condition Identifiers Power Condition Name
00HStandby_z
01 - 80HReserved
81HIdle_a
82HIdle_b
83HIdle_c
84 - FEHReserved
FFHAll EPC Power Conditions

Seagate Enterprise NAS HDD Product Manual, Rev. C 13
Drive specifications
2.6 Environmental specifications
This section provides the temperature, humidity, shock, and vibration specifications for NAS HDDs. This section provides the
temperature, humidity, shock, and vibration specifications.
2.6.1 Drive case temperature
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. Drive case temperature should be measured at the
location indicated in Figure 4.
2.6.2 Temperature
2.6.3 Temperature gradient
2.6.4 Humidity
2.6.4.1 Relative humidity
2.6.4.2 Wet bulb temperature
2.6.5 Altitude
Non-Operating (Ambient °C) –40 to 70
Operating temperature (Ambient min °C) 5
Operating temperature (Drive case max °C) 60
Operating 20°C per hour (36°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)
Nonoperating 5% to 95% non-condensing (30% per hour max)
Operating 26°C / 78.8°F (rated)
Non-operating 29°C / 84.2°F (rated)
Operating –61m to 3048m (–200 ft. to 10,000 ft.)
Non-operating –61m to 12,192m (–200 ft. to 40,000+ ft.)

Seagate Enterprise NAS HDD Product Manual, Rev. C 14
Drive specifications
2.6.6 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.
2.6.6.1 Operating shock
These drives comply with the performance levels specified in this document when subjected to a maximum operating shock of 70 Gs
(read) and 40 Gs (write) based on half-sine shock pulses of 2ms. Shocks should not be repeated more than two times per second.
2.6.6.2 Nonoperating shock
The nonoperating shock level that the drive can experience without incurring physical damage or degradation in performance when
subsequently put into operation is 250 Gs based on a nonrepetitive half-sine shock pulse of 2ms duration.
2.6.7 Vibration
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.
2.6.7.1 Operating vibration
The maximum vibration levels that the drive may experience while meeting the performance standards specified in this document
are specified below.
* Rotary Random Operating Vibration
2.6.7.2 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.
5–22 Hz 0.25 Gs
22–350 Hz 0.50 Gs
350–500 Hz 0.25 Gs
20 - 1500Hz
*(RROV) 12.5 rads/s2w/RVFF
10–500 Hz
Linear Random
5.0 Grms ref

Seagate Enterprise NAS HDD Product Manual, Rev. C 15
Drive specifications
2.7 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.
2.8 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.
2.9 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 the following table:
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 4 Fluid Dynamic Bearing (FDB) motor acoustics
Idle* Performance seek
All models 2.8 bels (typ)
3.0 bels (max)
3.0 bels (typ)
3.4 bels (max)
Table 5 Radio frequency environments
Test Description Performance level Reference standard
Electrostatic discharge Contact, HCP, VCP: ± 4 kV; Air: ± 8 kV B EN 61000-4-2: 95
Radiated RF immunity
80 to 1000 MHz, 3 V/m,
80% AM with 1 kHz sine
900 MHz, 3 V/m, 50% pulse modulation @ 200 Hz
AEN 61000-4-3: 96
ENV 50204: 95
Electrical fast transient ± 1 kV on AC mains, ± 0.5 kV on external I/O B EN 61000-4-4: 95
Surge immunity ± 1 kV differential, ± 2 kV common, AC mains B EN 61000-4-5: 95
Conducted RF immunity 150 kHz to 80 MHz, 3 Vrms, 80% AM with 1 kHz sine A EN 61000-4-6: 97
Voltage dips, interrupts
0% open, 5 seconds
0% short, 5 seconds
40%, 0.10 seconds
70%, 0.01 seconds
C
C
C
B
EN 61000-4-11: 94

Seagate Enterprise NAS HDD Product Manual, Rev. C 16
Drive specifications
2.10 Reliability
2.10.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)
The production disk drive shall achieve an annualized failure-rate of 0.73% (MTBF of 1,200,000 hours) over a 5 year service life when
used in Enterprise Storage field conditions as limited by the following:
• 8760 power-on hours per year.
• HDA temperature as reported by the drive <= 40°C
• Ambient wet bulb temp <= 26°C
• The AFR (MTBF) is a population statistic not relevant to individual units
• ANSI/ISA S71.04-2013 G2 classification levels and dust contamination to ISO 14644-1 Class 8 standards (as measured at the device)
The MTBF specification for the drive assumes the operating environment is designed to maintain nominal drive temperature and
humidity. The rated MTBF is based upon a sustained drive temperature of up to 122°F (40°C) and wet bulb temperature up to 78.8°F
(26°C). Occasional excursions in operating conditions between the rated MTBF conditions and the maximum drive operating
conditions may occur without significant impact to the rated MTBF. However continual or sustained operation beyond the rated
MTBF conditions will degrade the drive MTBF and reduce product reliability.
2.11 Agency certification
2.11.1 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.
2.11.2 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.
Nonrecoverable read errors 1 per 1015 bits read, max
Annualized Failure Rate (AFR) 0.73% (nominal power, 40°C case temperature)
Load unload cycles 300,000 cycles
Rated Workload Average annualized workload rating: 300 TB/year.
The AFR specification for the product assumes the I/O workload does not exceed the average annu-
alized workload rate limit of 300 TB/year. Workloads exceeding the annualized rate may degrade the
product AFR and impact reliability as experienced by the particular application. The average annual-
ized 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 the “Is my Drive under Warranty” link. The following are required to be pro-
vided: the drive serial number, model number (or part number) and country of purchase. The sys-
tem will display the warranty information for the drive.
Preventive maintenance None required.

Seagate Enterprise NAS HDD Product Manual, Rev. C 17
Drive specifications
Korean RRA
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 Agency (RRA) 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.
Canada ICES-003
If this model has the ICES-003 Marking it complies with the Canadian Standard Association Standard CAN/CSA-CISPR 22-10,
Information Technology Equipment - Radio Disturbance Characteristics - Limits and Methods of Measurement.
Australian RCM Compliance Mark
Models displayed with the RCM compliance mark, comply with the mandatory standards as per the Australian Communications and
Media Authority (ACMA) Electromagnetic Compatibility (EMC) regulatory arrangement.
2.11.3 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 noncertified 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.
If necessary, users should consult a 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.
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Seagate Enterprise NAS HDD Product Manual, Rev. C 18
Drive specifications
2.12 Environmental protection
Seagate designs its products to meet environmental protection requirements worldwide, including regulations restricting certain
chemical substances.
2.12.1 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.
2.12.2 China Requirements — China RoHS 2
China RoHS 2 refers to the Ministry of Industry and Information Technology Order No. 32, effective July 1, 2016, titled Management
Methods for the Restriction of the Use of Hazardous Substances in Electrical and Electronic Products. To comply with China RoHS 2,
we determined this product's Environmental Protection Use Period (EPUP) to be 20 years in accordance with the Marking for the
Restricted Use of Hazardous Substances in Electronic and Electrical Products, SJT 11364-2014.
中国电器电子产品有害物质限制使用管理办法
(Management Methods for the Restriction of the Use of Hazardous Substances in Electrical and Electronic
Products _ China RoHS)
产品中有害物质的名称及含量
(Name and Content of the Hazardous Substances in Product)
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 hard disk drives are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the
most damaging. 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.
Table 6 Hazardous Substances
部件名称
Part Name
有害物质
Hazardous Substances
铅
Lead
(Pb)
汞
Mercury
(Hg)
镉
Cadmium
(Cd)
六价铬
Hexavalent
Chromium
(CF (VI))
多溴联苯
Polybrominated
biphenyls (PBB)
多溴二苯醚
Polybrominated
diphenyl ethers
(PBDE)
印刷电路板组装
PCBA XOOOOO
机壳
Chassis XOOOOO
本表格依据 SJ/T 11364 的规定编制。
This table is prepared in accordance with the provisions of SJ/T 11364-2014
O：表示该有害物质在该部件所有均质材料中的含量均在 GB/T 26572 规定的限量要求以下。
O: Indicates that the hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement of
GB/T26572.
X：表示该有害物质至少在该部件的某一均质材料中的含量超出 GB/T 26572 规定的限量要求。
X: Indicates that the hazardous substance contained in at least one of the homogeneous materials used for this part is above the limit
requirement of GB/T26572.
20

Seagate Enterprise NAS HDD Product Manual, Rev. C 19
Drive specifications
Seagate recommends that data centers be kept clean by monitoring and controlling the dust and gaseous contamination. Gaseous
contamination should be within ANSI/ISA S71.04-2013 G2 classification levels (as measured on copper and silver coupons), and dust
contamination to ISO 14644-1 Class 8 standards, and MTBF rated conditions as defined in the Annualized Failure Rate (AFR) and
Mean Time Between Failure (MTBF) section.
2.14 Product warranty
Beginning on the date of shipment to the customer and continuing for the period specified in the purchase contract, Seagate
warrants that each product (including components and subassemblies) that fails to function properly under normal use due to
defect in materials or workmanship or due to nonconformance to the applicable specifications will be repaired or replaced, at
Seagate’s option and at no charge to the customer, if returned by customer at customer’s expense to Seagate’s designated facility in
accordance with Seagate’s warranty procedure. Seagate will pay for transporting the repair or replacement item to the customer. For
more detailed warranty information, refer to the standard terms and conditions of purchase for Seagate products on the purchase
documentation.
The remaining warranty for a particular drive can be determined by calling Seagate Customer Service at 1-800-468-3472. Users can
also determine remaining warranty using the Seagate web site (www.seagate.com). The drive serial number is required to determine
remaining warranty information.
Shipping
When transporting or shipping a drive, use only a Seagate-approved container. Keep the original box. Seagate approved containers
are easily identified by the Seagate Approved Package label. Shipping a drive in a non-approved container voids the drive warranty.
Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in transit. Contact an
authorized Seagate distributor to purchase additional boxes. Seagate recommends shipping by an air-ride carrier experienced in
handling computer equipment.
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.
Product repair and return information
Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does not sanction any third-
party repair facilities. Any unauthorized repair or tampering with the factory seal voids the warranty.