Seagate Exos Enterprise ST8000NM000A User manual

* Default configuration is 512E for 512E / 4KN drives.
See Section 2.2.1 to Fast Format to 4KN in seconds
100840703, Rev. K
Gen. 10 November 2020
5xxE models
Standard
ST8000NM000A
ST6000NM021A
ST4000NM002A
ST2000NM001A
SED (FIPS 140-2)
ST8000NM008A
ST6000NM025A
ST4000NM012A
5xxE models
Self-Encryption (SED)
ST8000NM004A
ST6000NM023A
ST4000NM010A
ST2000NM010A
Instant Secure Erase (ISE)
ST8000NM012A
ST6000NM027A
7E8 SATA Product Manual

© 2020 Seagate Technology LLC. All rights reserved.
Publication number: 100840703, Rev. K November 2020
Seagate, Seagate Technology and the Spiral logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. PowerChoice 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. The FIPS logo is a certification mark of NIST,
which does not imply product endorsement by NIST, the U.S., or Canadian governments. 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 03/27/2019 Initial release.
Rev. B 05/01/2019
fc & 8-9: Added Fast Format, notes and references
6-31: Updated section numbering
7 & 27: Updated drive weights
8 & 19: Updated Op-Shock to 300 Gs for all capacities
8 & 21: Updated AFR to 0.44%
21: Updated MTBF to 2M hrs
26: Added HDD/SSD Regulatory Compliance and Safety URL to Reference documents
Rev. C 05/23/2019 7 & 19: Updated Operating & Non-Operating shock statements 7: Updated Vibration specifications
10-13: Updated Tables 5-8 - DC power requirements
Rev. D 07/17/2019 fc, 5-7: Added ISE models
Rev. E 09/13/2019 6: Updated drive temperature entries to reflect drive reported
21: Updated Section 2.12.1 Safety certification
Rev. F 10/16/2019 16: Updated Section 2.5.3 Conducted noise immunity
Rev. G 01/09/2020
6-7: Corrected temperature & humidity gradients
6 & 16: Corrected 5V tolerance to ±5%
28: Renamed - Figure 6 Mounting configuration dimensions 8TB and 6TB models (Option 1)
Added Figure 7 Mounting configuration dimensions 8TB and 6TB models (Option 2)
Rev. H 03/05/2020 21: Section 2.12 - Updated Regulatory Compliance and Safety information with URL and instructions 22: Section 2.14 - Removed HDD and SSD Regulatory Compliance and Safety reference
24: Updated Figure 6 - Mounting configuration dimensions 8TB and 6TB models (Option 1)
Rev. J 05/22/2020 6 & 9: Revised 6TB Sustained data transfer rate OD (MiB/s max) to 234 (245 MB/s max)
bc: Updated US HQ address
Rev. K 11/17/2020 33-35: Updated Table 13 Identify Device commands

Seagate Exos 7E8 SATA Product Manual, Rev. K 2
Contents
Seagate® Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.2.1 Fast Format - logical sector size conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2.2 LBA mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5.1 Power consumption. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5.2 Typical current profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.5.3 Conducted noise immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.5.4 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.5.5 Extended Power Conditions - PowerChoice™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
2.6 Environmental limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6.2 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.6.3 Effective Altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.7 Shock and Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.7.1 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.7.2 Vibration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2.8 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.9 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.10 Electromagnetic immunity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.11 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.11.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . . . . . . . . . . . 21
2.12 HDD and SSD Regulatory Compliance and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.12.1 Regulatory Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.13 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.14 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2.15 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Seagate Exos 7E8 SATA Product Manual, Rev. K 3
Contents
3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.1 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4.0 About self-encrypting drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.1 Data encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2 Controlled access. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2.1 Admin SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2.2 Locking SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.2.3 Default password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
4.3 Random number generator (RNG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4 Drive locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.5 Data bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.6 Cryptographic erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.7 Authenticated firmware download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.8 Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.9 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.10 RevertSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.11 ATA Security Erase Unit Command on SED SATA drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.12 Sanitize Device - CRYPTO SCRAMBLE EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5.0 About FIPS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.2 Serial ATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
6.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
6.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6.3.2 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
6.3.3 S.M.A.R.T. commands. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Seagate Exos 7E8 SATA Product Manual, Rev. K 4
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 Exos 7E8 SATA Product Manual, Rev. K 5
1.0 Introduction
This manual describes the functional, mechanical and interface specifications for the following:
Seagate® Exos® 7E8 Serial ATA model drives:.
These drives provide the following key features:
• 7200 RPM spindle speed.
• Full-track multiple-sector transfer capability without local processor intervention.
• High instantaneous (burst) data-transfer rates (up to 600MB per second).
• Native Command Queuing with command ordering to increase performance in demanding applications.
• Perpendicular recording technology provides the drives with increased areal density.
• PowerChoice™ for selectable power savings
• 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.
• Tarnish-resistant components to help protect drive from environmental elements, increasing field reliability.
• 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 configuration 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 the current system and expect all of the 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.
5xxE models
Standard Self-Encrypting (SED) SED (FIPS 140-2) Instant Secure Erase (ISE)
ST8000NM000A ST8000NM004A ST8000NM008A ST8000NM012A
ST6000NM021A ST6000NM023A ST6000NM025A ST6000NM027A
ST4000NM002A ST4000NM010A ST4000NM012A
ST2000NM001A ST2000NM010A
Note Seagate recommends validating the configuration with the selected HBA/
RAID controller manufacturer to ensure use of full capacity is supported.
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 Exos 7E8 SATA Product Manual, Rev. K 6
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
5xxE models
Standard Self-Encrypting (SED) SED (FIPS 140-2) Instant Secure Erase (ISE)
ST8000NM000A ST8000NM004A ST8000NM008A ST8000NM012A
ST6000NM021A ST6000NM023A ST6000NM025A ST6000NM027A
ST4000NM002A ST4000NM010A ST4000NM012A
ST2000NM001A ST2000NM010A
Drive specification ST8000NM000A
ST8000NM004A
ST8000NM008A
ST8000NM012A
ST6000NM021A
ST6000NM023A
ST6000NM025A
ST6000NM027A
ST4000NM002A
ST4000NM010A
ST4000NM012A
ST2000NM001A
ST2000NM010A
Formatted (512 bytes/sector)#8TB 6TB 4TB 2TB
Guaranteed sectors (see Section 2.2)
Heads 10 8 6 3
Discs 5 4 3 2
Bytes per logical sector 512
Bytes per physical sector 4096
Recording density, KBPI (Kb/in max) 2509
Track density, KTPI (ktracks/in, 0 skew) 371
Areal density, (Gb/in2, @ 0 skew mid-disk) 930
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2850
Sustained data transfer rate OD (MiB/s max) 238 (249 MB/s max) 234 (245 MB/s max) 216 (226 MB/s max)
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 (262,144KB)
Weight: (maximum) 716g (1.579 lb) 693g / (1.528 lb) 649g (1.431 lb) 620g (1.367 lb)
Average latency 4.16ms
Power-on to ready (sec) (typ/max) 23/30
Standby to ready (sec) (typ/max) 23/30
Startup current (typical) 12V (peak) 2.6A
(2.0A (optional configuration through Smart Command Transport)
Voltage tolerance (including noise) 5V ±5%
12V ±10%
Operating temperature†5° to 60°C (Drive Reported Temperature)
Non-Operating temperature –40° to 70°C (Ambient Temperature, see sections 2.6.1 and 2.11)
Temperature gradient (°C per hour max) 20°C (operating)
20°C (nonoperating)

Seagate Exos 7E8 SATA Product Manual, Rev. K 7
* 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.
*SeeSection 2.11, "Reliability" for rated MTBF device operating condition requirements.
2.2Formatted capacity
* One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
Relative humidity*5% to 95% (operating)
5% to 95% (nonoperating)
Relative humidity gradient 20% 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 (2 ms) Read 70 Gs / Write 40 Gs
Non-Operational Shock (2 ms) 300 Gs
Linear Random Operating Vibration 5–500 Hz: 0.70 Grms
Random Rotary Operating Vibration 20–1500Hz: 12.5 rads/s²
Linear Random Non-Operating Vibration 2–500 Hz: 2.27 Grms
Drive acoustics, sound power (bels)
Idle**
2.8 (typical)
3.0 (max)
During periods of drive idle, some offline activity may occur according to the
SMART specification, which may increase acoustic and power to operational levels.
Performance seek 3.2 (typical)
3.4 (max)
Nonrecoverable read errors 1 sector per 1015 bits read
Annualized Failure Rate (AFR)*0.44% based on 8760 POH
Maximum Rated Workload*
Maximum rate of <550TB/year
Workloads exceeding the annualized rate may degrade the drive MTBF and impact product
reliability. The 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 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 (command controlled) 600,000
Supports Hotplug operation per
Serial ATA Revision 3.3 specification Yes
ST models Formatted capacity* Guaranteed sectors Bytes per logical sector
ST8000NM000A, ST8000NM004A, ST8000NM008A,
ST8000NM012A 8TB 15,628,053,168
512
ST6000NM021A, ST6000NM023A, ST6000NM025A,
ST6000NM027A 6TB 11,721,045,168
ST4000NM002A, ST4000NM010A, ST4000NM012A 4TB 7,814,037,168
ST2000NM001A, ST2000NM010A 2TB 3,907,029,168
Drive specification ST8000NM000A
ST8000NM004A
ST8000NM008A
ST8000NM012A
ST6000NM021A
ST6000NM023A
ST6000NM025A
ST6000NM027A
ST4000NM002A
ST4000NM010A
ST4000NM012A
ST2000NM001A
ST2000NM010A

Seagate Exos 7E8 SATA Product Manual, Rev. K 8
2.2.1 Fast Format - logical sector size conversion
n Drive supports either 512E or 4KN logical sector size formats
n SET SECTOR CONFIGURATION EXT (B2h) command (ACS-4 Standard) quickly converts between 512 and 4096 byte logical sector
size formats
n The selected sector size change occurs immediately upon command completion
n Default shipping format is 512E
n COMMAND CHECK field value is taken from the DESCRIPTOR CHECK field in the descriptor specified by the SECTOR
CONFIGURATION DESCRIPTOR INDEX field
n SECTOR CONFIGURATION DESCRIPTOR INDEX field specifies the Sector Configuration descriptor in the Set Sector
Configuration log page
Sector Configuration log (Log Address 2Fh)
The Sector Configuration log contains Sector Configuration descriptors. The Sector Configuration descriptors describe
sector configurations. The sector configuration is specified using the SET SECTOR CONFIGURATION EXT command.
Table 2 SET SECTOR CONFIGURATION EXT command inputs
Field Description
FEATURE COMMAND CHECK field
COUNT Bit Description
15 : 3 Reserved
2:0 SECTOR CONFIGURATION DESCRIPTOR INDEX field
LBA Reserved
DEVICE Bit Description
7 Obsolete
6 N/A
5 Obsolete
4 Transport Dependent
3:0 Reserved
COMMAND 7:0 B2h
Table 3 Sector Configuration descriptors page format (log page 00h)
Offset Type Description
0...15 Bytes Sector Configuration descriptor 0
16...31 Bytes Sector Configuration descriptor 1
... ... ...
112...127 Bytes Sector Configuration descriptor 7
128...511 Bytes Reserved

Seagate Exos 7E8 SATA Product Manual, Rev. K 9
2.2.2 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 6.3.1, "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
Table 4 Sector Configuration descriptors format
Offset Type Description
0 Byte Sector Configuration descriptor flags
Bit Description
7 DESCRIPTOR VALID bit
6:0 Reserved
1 Byte LOGICAL TO PHYSICAL SECTOR RELATIONSHIP SETTING field
2...3 Word DESCRIPTOR CHECK field
4...7 DWord LOGICAL SECTOR SIZE SETTING field
8...15 Bytes Reserved
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 2509
Track density, KTPI (ktracks/in, 0 Skew) 371
Areal density (Gb/in2, @ 0 skew mid-disk) 930
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 2850
Sustained data transfer rate (MiB/s max) 8TB models 238 (249 MB/s max)
Sustained data transfer rate (MiB/s max) 6TB models 234 (245 MB/s max)
Sustained data transfer rate (MiB/s max) 4TB, 2TB models 216 (226 MB/s max)
I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)
Power-on to Ready (sec) (typ/max) 23/30
Standby to Ready (sec) (typ/max) 23/30
Ready to spindle stop (sec) (max) 23

Seagate Exos 7E8 SATA Product Manual, Rev. K 10
2.5 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 5 on page 23.
2.5.1 Power consumption
Power requirements for the drives are listed in Table 5 through Table 8. 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 5 DC power requirements (8TB)
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.241 0.536 7.64
Advanced Idle Current *
Idle_A 0.238 0.532 7.57
Idle_B 0.182 0.447 6.27
Idle_C 0.178 0.232 3.67
Standby 0.169 0.092 0.92
Maximum Start Current
DC (peak DC) 0.761 2.155
AC (Peak DC) 0.888 2.840
Delayed Motor Start (DC max) 0.216 0.028
Operating current (random read 4K16Q)
Typical DC 0.413 0.896 12.81
Maximum DC 0.413 0.896 12.81
Maximum DC (Peak) 1.125 2.283
Operating current (random write 4K16Q)
Typical DC 0.304 0.613 8.88
Maximum DC 0.304 0.613 8.88
Maximum DC (Peak) 0.741 2.394
Operating current (sequential read 64K16Q)
Typical DC 0.745 0.573 10.61
Maximum DC 0.745 0.573 10.61
Maximum DC (Peak) 1.022 0.895
Operating current (sequential write 64K16Q)
Typical DC 0.585 0.572 9.79
Maximum DC 0.585 0.572 9.79
Maximum DC (Peak) 0.766 0.893
Power Governor Operating current (random read 4K16Q)
Typical DC 0.418 0.822 11.96
Maximum DC 0.418 0.822 11.96
Maximum DC (Peak) 1.130 2.121
Power Governor Operating current (random write 4K16Q)
Typical DC 0.314 0.584 8.58
Maximum DC 0.314 0.584 8.58
Maximum DC (Peak) 0.787 2.280
Power Governor Operating current (sequential read 64K16Q)
Typical DC 0.746 0.572 10.60
Maximum DC 0.746 0.572 10.60
Maximum DC (Peak) 1.046 0.918
Power Governor Operating current (sequential write 64K16Q)
Typical DC 0.587 0.568 9.75
Maximum DC 0.587 0.568 9.75
Maximum DC (Peak) 0.749 0.887

Seagate Exos 7E8 SATA Product Manual, Rev. K 11
*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 6 6TB DC power requirements
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.247 0.434 6.44
Advanced Idle Current *
Idle_A 0.247 0.434 6.45
Idle_B 0.191 0.372 5.42
Idle_C 0.185 0.198 3.31
Standby 0.175 0.007 0.95
Maximum Start Current
DC (peak DC) 0.806 2.144
AC (Peak DC) 1.144 2.940
Delayed Motor Start (DC max) 0.220 0.028
Operating current (random read): 4K/Q16
Typical DC 0.423 0.815 11.90
Maximum DC 0.425 0.824 12.01
Maximum DC (Peak) 1.094 2.116
Operating current (random write): 4K/Q16
Typical DC 0.319 0.523 7.88
Maximum DC 0.321 0.530 7.97
Maximum DC (Peak) 0.802 2.320
Operating current (sequential read): 64K/Q16
Typical DC 0.753 0.475 9.46
Maximum DC 0.756 0.480 9.54
Maximum DC (Peak) 0.971 0.803
Operating current (sequential write): 64K/Q16
Typical DC 0.610 0.474 8.73
Maximum DC 0.613 0.478 8.81
Maximum DC (Peak) 0.797 0.809
Power Governor Operating current (random read 4K16Q)
Typical DC 0.426 0.736 10.96
Maximum DC 0.427 0.737 10.98
Maximum DC (Peak) 1.089 2.057
Power Governor Operating current (random write 4K16Q)
Typical DC 0.324 0.483 7.41
Maximum DC 0.325 0.491 7.52
Maximum DC (Peak) 0.817 2.237
Power Governor Operating current (sequential read 64K16Q)
Typical DC 0.753 0.473 9.44
Maximum DC 0.757 0.478 9.52
Maximum DC (Peak) 0.996 0.813
Power Governor Operating current (sequential write 64K16Q)
Typical DC 0.611 0.470 8.70
Maximum DC 0.616 0.476 8.79
Maximum DC (Peak) 0.795 1.824

Seagate Exos 7E8 SATA Product Manual, Rev. K 12
*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 7 DC power requirements (4TB)
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.222 0.346 5.26
Advanced Idle Current *
Idle_A 0.225 0.350 5.32
Idle_B 0.169 0.296 4.40
Idle_C 0.161 0.072 1.67
Standby 0.153 0.005 0.82
Maximum Start Current
DC (peak DC) 0.707 2.098
AC (Peak DC) 0.792 2.880
Delayed Motor Start (DC max) 0.200 0.024
Peak operating current (random read)
Typical DC 0.394 0.731 10.74
Maximum DC 0.394 0.731 10.74
Maximum DC (Peak) 1.022 1.972
Peak operating current (random write)
Typical DC 0.289 0.437 6.69
Maximum DC 0.289 0.437 6.69
Maximum DC (Peak) 0.725 1.982
Peak operating current (sequential read)
Typical DC 0.701 0.398 8.28
Maximum DC 0.701 0.398 8.28
Maximum DC (Peak) 0.909 0.665
Peak operating current (sequential write)
Typical DC 0.561 0.394 7.54
Maximum DC 0.561 0.394 7.54
Maximum DC (Peak) 0.719 .649
Power Governor Operating current (random read 4K16Q)
Typical DC 0.394 0.658 9.86
Maximum DC 0.394 0.658 9.86
Maximum DC (Peak) 1.056 1.969
Power Governor Operating current (random write 4K16Q)
Typical DC 0.292 0.399 6.25
Maximum DC 0.292 0.399 6.25
Maximum DC (Peak) 0.737 1.894
Power Governor Operating current (sequential read 64K16Q)
Typical DC 0.700 0.398 8.28
Maximum DC 0.700 0.398 8.28
Maximum DC (Peak) 0.910 1.808
Power Governor Operating current (sequential write 64K16Q)
Typical DC 0.563 0.394 7.54
Maximum DC 0.563 0.394 7.54
Maximum DC (Peak) 0.719 0.647

Seagate Exos 7E8 SATA Product Manual, Rev. K 13
*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 8 Drive DC power requirements (2TB)
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.230 0.282 4.54
Advanced Idle Current *
Idle_A 0.230 0.284 4.56
Idle_B 0.173 0.242 3.77
Idle_C 0.168 0.064 1.60
Standby 0.159 0.007 0.87
Maximum Start Current
DC (peak DC) 0.745 2.100
AC (Peak DC) 0.880 2.940
Delayed Motor Start (DC max) 0.204 0.032
Peak operating current (random read)
Typical DC 0.402 0.661 9.94
Maximum DC 0.403 0.662 9.96
Maximum DC (Peak) 1.080 1.896
Peak operating current (random write)
Typical DC 0.297 0.367 5.89
Maximum DC 0.297 0.371 5.93
Maximum DC (Peak) 0.739 1.932
Peak operating current (sequential read)
Typical DC 0.702 0.314 7.28
Maximum DC 0.706 0.316 7.32
Maximum DC (Peak) 0.969 0.576
Peak operating current (sequential write)
Typical DC 0.579 0.310 6.62
Maximum DC 0.580 0.312 6.65
Maximum DC (Peak) 0.732 0.535
Power Governor Operating current (random read 4K16Q)
Typical DC 0.403 0.591 9.09
Maximum DC 0.403 0.597 9.17
Maximum DC (Peak) 1.077 1.857
Power Governor Operating current (random write 4K16Q)
Typical DC 0.300 0.337 5.54
Maximum DC 0.302 0.346 5.66
Maximum DC (Peak) 0.773 1.836
Power Governor Operating current (sequential read 64K16Q)
Typical DC 0.701 0.313 7.26
Maximum DC 0.704 0.313 7.28
Maximum DC (Peak) 0.955 0.559
Power Governor Operating current (sequential write 64K16Q)
Typical DC 0.579 0.308 6.59
Maximum DC 0.579 0.309 6.60
Maximum DC (Peak) 0.743 0.533

Seagate Exos 7E8 SATA Product Manual, Rev. K 14
2.5.2 Typical current profiles
Figure 1. 8TB Typical startup and operation current profile
Figure 2. 6TB Typical startup and operation current profile

Seagate Exos 7E8 SATA Product Manual, Rev. K 15
Figure 3. 4TB Typical startup and operation current profile
Figure 4. 2TB Typical startup and operation current profile

Seagate Exos 7E8 SATA Product Manual, Rev. K 16
2.5.3 Conducted noise immunity
Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz. Maximum allowed noise
values given below are peak-to-peak measurements and apply at the drive power connector.
2.5.4 Voltage tolerance
Voltage tolerance (including noise):
5V ± 5% 12V ± 10%
2.5.5 Extended Power Conditions - PowerChoice™
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
+5v = 250 mV pp from 100 Hz to 20 MHz.
+12v = 800 mV pp from 100 Hz to 8 KHz.
450 mV pp from 8 KHz to 20 KHz.
250 mV pp from 20 KHz to 5 MHz.
Note Equivalent resistance is calculated by dividing the nominal voltage by the typical RMS read/write current.
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 Exos 7E8 SATA Product Manual, Rev. K 17
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
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 msec
Idle_b 2 min
Idle_c 4 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 Exos 7E8 SATA Product Manual, Rev. K 18
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) temperature range with a maximum temperature gradient of 36°F (20°C) per hour as reported by the
drive.
The maximum allowable drive reported temperature is 140°F (60°C).
Air flow may be required to achieve consistent nominal drive 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, monitor the current drive temperature using the SMART temperature attribute
194 or Device Statistics log 04h page 5.
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.
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.
See Section 2.11, "Reliability" for rated MTBF device operating condition requirements.
Operating: 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
Non-operating: 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
Operating: –304.8 m to 3048 m (–1000 ft. to 10,000+ ft.)
Non-operating: –304.8 m to 12,192 m (–1000 ft. to 40,000+ ft.)

Seagate Exos 7E8 SATA Product Manual, Rev. K 19
2.7 Shock and Vibration
Shock and vibration measurements specified in this document are made directly on the drive itself and applied in the X, Y, and Z axis at the drive
mounting point locations.
2.7.1 Shock
a. Operating
The drive will operate without error while subjected to intermittent shock pulses not exceeding 70 Gs (read) and 40 Gs (write) at
a duration of 2ms.
b. Non-operating
The drive will operate without non-recoverable errors after being subjected to shock pulses not exceeding 300g at a duration of
2ms.
2.7.2 Vibration
a. Linear Random Operating Vibration
The drive will operate without non-recoverable errors while being subjected to the random power spectral density noise
specified below.
b. Random Rotary Operating Vibration
The drive will exhibit greater than 90% throughput for sequential and random write operations while subjected to the shaped
random power spectral density noise specified below.
c. Linear Random Non-Operating Vibration
The drive will not incur physical damage or have non-recoverable errors after being subjected to the power spectral density noise
specified below.