Seagate ST6000NE0001 User manual

100780707, Rev. A
November 2015
ST8000NE0001
ST6000NE0001
Enterprise
NAS HDD
SATA Product Manual

© 2015 Seagate Technology LLC. All rights reserved.
Publication number: 100780707, Rev. A November 2015
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.

Seagate Enterprise NAS HDD Product Manual, Rev. A 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2.1 LBA mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.4 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5.1 Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.5.4 Extended Power Conditions - PowerChoiceTM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.6 Environmental limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.2 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.3 Effective Altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.6.4 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6.5 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.7 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.8 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.9 Electromagnetic immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.10.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . . . . . . . . . . . 14
2.11 Agency certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.11.1 Safety certification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.11.2 Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.11.3 FCC verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2.12 Environmental protection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.12.1 European Union Restriction of Hazardous Substances (RoHS) Directive. . . . . . . . . . . . . . 16
2.12.2 China Restriction of Hazardous Substances (RoHS) Directive . . . . . . . . . . . . . . . . . . . . . . . 16
2.13 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2.14 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.4.1 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.2 Serial ATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
4.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Seagate Enterprise NAS HDD Product Manual, Rev. A 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. A 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.
• 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
ST8000NC0002 & ST6000NC0002
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. A 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
ST8000NC0002 & ST6000NC0002
Drive specification ST8000NC0002 ST6000NC0002
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
Track density, KTPI (ktracks/in avg.) 362
Areal density, (Gb/in2 avg) 1333
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2546
Sustained data transfer rate OD (max) 237MiB/s (249 MB/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)
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%
Drive case temperature 5° to 60°C (operating/tested)
–40° to 70°C (nonoperating)
Temperature gradient
(°C 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
Altitude, operating –304.8 m to 3,048 m
(–1000 ft to 10,000+ ft)
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

Seagate Enterprise NAS HDD Product Manual, Rev. A 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.
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
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: 4.9 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 1014 bits read
Annualized Failure Rate (AFR) 0.73% based on 8760 POH
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 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
Formatted capacity* Guaranteed sectors Bytes per physical sector Bytes per logical sector
8TB 15,628,053,168 4096 512
6TB 11,721,045,168
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 2241
Track density, KTPI (ktracks/in avg) 362
Areal density (Gb/in2avg) 1333
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 2546
Sustained data transfer rate (max) 237 MiB/s (249 MB/s)
I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)
Drive specification ST8000NC0002 ST6000NC0002

Seagate Enterprise NAS HDD Product Manual, Rev. A 7
Drive specifications
2.4 Start/stop times
2.5 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 18.
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.
Power-on to Ready (sec) 25 (max)
Standby to Ready (sec) 30 (max)
Ready to spindle stop (sec) 12 (max)
Table 2 DC power requirements (8TB & 6TB)
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. A 8
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%
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.
Note Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.

Seagate Enterprise NAS HDD Product Manual, Rev. A 9
Drive specifications
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. A 10
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 1 sec
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. A 11
Drive specifications
2.6 Environmental limits
Temperature and humidity values experienced by the drive must be such that condensation does not occur on any drive part.
Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F (14.8°C).
2.6.1 Temperature
a. Operating
41°F to 140°F (5°C to 60°C) drive case temperature range with a maximum temperature gradient of 36°F (20°C) per hour.
The maximum allowable drive case temperature is 60°C.
Air flow may be required to achieve consistent nominal case temperature values (see Section 3.4). To confirm that the required
cooling is provided for the electronics and HDA, place the drive in its final mechanical configuration, and perform random write/
read operations. After the temperatures stabilize, measure the case temperature of the drive. See Figure 2 for HDA temperature
checkpoint.
b. Non-operating
–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that
the drive is packaged in the shipping container designed by Seagate for use with drive.
Figure 2. Location of the HDA temperature check point
2.6.2 Humidity
The values below assume that no condensation on the drive occurs. Maximum wet bulb temperature is 84.2°F (29°C).
2.6.2.1 Relative humidity
2.6.3 Effective Altitude (sea level)
Note To maintain optimal performance drives should be run at nominal drive temperatures and humidity.
Note Image is for reference only, may not represent actual drive
Operating: 5% to 95% noncondensing (30% per hour max)
Nonoperating: 5% to 95% noncondensing (30% per hour max)
Operating: –304.8 m to 3048 m (–1000 ft. to 10,000+ ft.)
Nonoperating: –304.8 m to 12,192 m (–1000 ft. to 40,000+ ft.)
HDA Temp.
Check Point

Seagate Enterprise NAS HDD Product Manual, Rev. A 12
Drive specifications
2.6.4 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.
2.6.4.1 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.
2.6.4.2 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.
2.6.5 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.
2.6.5.1 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
2.6.5.2 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
4.9 Grms ref

Seagate Enterprise NAS HDD Product Manual, Rev. A 13
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 3 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 4 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. A 14
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 1014 bits read, max
Annualized Failure Rate (AFR) 0.73% (nominal power, 40°C case temperature)
Load unload cycles 300,000 cycles
Rated Workload Average rate of <300TB/year
The MTBF specification for the drive assumes the I/O workload does not exceed the Average Annu-
alized Workload Rate of <300TB/year. Workloads exceeding the annualized rate may degrade the
drive MTBF and impact product reliability. The Average Annualized Workload Rate is in units of TB
per year, or TB per 8760 power on hours. Workload Rate = TB transferred * (8760 / recorded power
on hours).
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. A 15
Drive specifications
Korean RRL
If these drives have the Korean Communications Commission (KCC) logo, they comply with paragraph 1 of Article 11 of the
Electromagnetic Compatibility control Regulation and meet the Electromagnetic Compatibility (EMC) Framework requirements of
the Radio Research Laboratory (RRL) Communications Commission, Republic of Korea.
These drives have been tested and comply with the Electromagnetic Interference/Electromagnetic Susceptibility (EMI/EMS) for Class
B products. Drives are tested in a representative, end-user system by a Korean-recognized lab.
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 Mark
If this model has the RCM Marking it complies with the Australia/New Zealand Standard AS/NZ CISPR22 and meets the
Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Radiocommunications Act.
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.

Seagate Enterprise NAS HDD Product Manual, Rev. A 16
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 Restriction of Hazardous Substances (RoHS) Directive
This product has an Environmental Protection Use Period (EPUP) of 20 years. The following table contains information
mandated by China's "Marking Requirements for Control of Pollution Caused by Electronic Information Products"
Standard.
"O" indicates the hazardous and toxic substance content of the part (at the homogeneous material level) is lower than the threshold
defined by the China RoHS MCV Standard.
"X" indicates the hazardous and toxic substance content of the part (at the homogeneous material level) is over the threshold
defined by the China RoHS MCV Standard.
中国限制危险物品的指令
“O"表示该部件（于同类物品程度上）所含的危险和有毒物质低于中国RoHS MCV标准所定义的门槛值。
“X "表示该部件（于同类物品程度上）所含的危险和有毒物质超出中国RoHS MCV标准所定义的门槛值。

Seagate Enterprise NAS HDD Product Manual, Rev. A 17
Drive specifications
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.
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
The maximum recommended storage period for the drive in a non-operational environment is 90 days. Drives should be stored in
the original unopened Seagate shipping packaging whenever possible. Once the drive is removed from the Seagate original
packaging the recommended maximum period between drive operation cycles is 30 days. 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.

Seagate Enterprise NAS HDD Product Manual, Rev. A 18
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:
3.2 Configuring the drive
Each drive on the Serial ATA interface connects point-to-point with the Serial ATA 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 Serial ATA 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.
3.3 Serial ATA cables and connectors
The Serial ATA 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 in). See Table 5 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 3.
Each cable is keyed to ensure correct orientation. Enterprise NAS HDD drives support
latching SATA connectors.
Figure 3. Attaching SATA cabling
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. See Figure 5 for drive mounting dimensions.
Follow these important mounting precautions when mounting the drive:
• Allow a minimum clearance of 0.030 in (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 in (3.56mm) into the bottom or side
mounting holes.
• Do not overtighten the mounting screws (maximum torque: 6 in-lb).
• Do not cover breather hole on top cover.
Figure 4. Breather hole location - top cover
Caution
• Before handling the drive, users should put on a grounded wrist strap, or ground 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 mounted 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.
Power cable
Signal cable
Signal connector
Power connector
Breather Hole
Do Not
Cover

Seagate Enterprise NAS HDD Product Manual, Rev. A 19
Configuring and mounting the drive
3.4.1 Mechanical specifications
Refer to Figure 5 for detailed mounting configuration dimensions. See Section 3.4, “Drive mounting.”
.
Figure 5. Mounting dimensions—top, side and end view
Weight: 8TB & 6TB models 1.72 lb 780 g
Note These dimensions conform to the Small Form Factor Standard documented in
SFF-8301 and SFF-8323, found at www.sffcommittee.org
Note The images below are for mechanical tolerance reference only and
may not be a visual representation of the actual drive.