Seagate Exos X20z 512E User manual

Standard
512E model
ST20000NM001J
201309100, Rev. B
August 2021
X20z SATA Product Manual

© 2021 Seagate Technology LLC. All rights reserved.
Publication number: 201309100, Rev. B August 2021
Seagate, Seagate Technology and the Spiral logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. Raid Rebuild and SeaTools are either
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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 04/05/2021 Initial release.
Rev. B 08/30/2021 17: Revised Regulatory model number to STL014

Seagate Exos X20z SATA Product Manual, Rev. B 2
Contents
Seagate® Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2.2.1 LBA mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2.4 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.2.5 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2.5.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.2.5.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2.5.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.2.5.4 Extended Power Conditions - PowerChoice™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.3 Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.3.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.3.2 Humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
1.3.2.2 Shock and Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.3.2.3 Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.3.2.4 Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
1.3.3 Acoustics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.3.4 Test for Prominent Discrete Tones (PDTs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.3.5 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
1.3.6 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.3.6.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.3.7 HDD and SSD Regulatory Compliance and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.3.8 Regulatory Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.3.9 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.3.10 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1.3.11 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1.4 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.4.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.4.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.4.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
1.4.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.4.4.1 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
1.5 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.5.1 Hot-Plug compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.5.2 Serial ATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
1.5.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
1.5.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
1.5.3.2 Identify Device Data log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1.5.3.3 Device Statistics log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
1.5.3.4 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
1.5.3.5 SMART commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Seagate Exos X20z SATA Product Manual, Rev. B 3
For Seagate Product Support, visit: www.seagate.com/support
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For Firmware Download and Tools Download for Secure Erase, visit: www.seagate.com/support/downloads/
For information regarding online support and services, visit: www.seagate.com/contacts/
For information regarding Warranty Support, visit: www.seagate.com/support/warranty-and-replacements/
For information regarding data recovery services, visit: www.seagate.com/services-software/recover/
For Seagate OEM and Distribution partner and Seagate reseller portal, visit: www.seagate.com/partners
Seagate® Technology Support Services

Seagate Exos X20z SATA Product Manual, Rev. B 4
www.seagate.com Introduction
1.1 Introduction
This manual describes the functional, mechanical and interface specifications for the following:
Seagate® Exos™ X20z SATA drive models.
These drives provide the following key features:
256 MB data buffer.
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.
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 SMART drive monitoring and reporting.
Supports latching SATA cables and connectors.
Top Cover Attached motor for excellent vibration tolerance
Worldwide Name (WWN) capability uniquely identifies the drive.
ZAC Host Managed zoned device.
NOTE Seagate recommends validating the configuration with the selected HBA/RAID
controller manufacturer to ensure use of full capacity is supported.
Standard 512E models
ST20000NM001J

Seagate Exos X20z SATA Product Manual, Rev. B 5
www.seagate.com Introduction
1.1.1 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.
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.
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.

Seagate Exos X20z SATA Product Manual, Rev. B 6
www.seagate.com Drive specifications
1.2 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 Exos X20z SATA drive
models.
1.2.1 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
Drive specification ST20000NM001J
Formatted (512 bytes/sector) 20TB
Guaranteed sectors (see Section 1.2.2)
Heads 18
Discs 9
Bytes per logical sector 512E
Bytes per physical sector 4096
Recording density, KBPI (Kb/in max) 2480
Track density, KTPI (ktracks/in avg.) 540
Areal density, (Gb/in2 avg) 1340
Spindle speed (RPM) 7200
Internal data transfer rate (Mb/s max) 2880
Sustained data transfer rate OD (MiB/s max) 249 (260 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) 670g (1.477 lb)
Average latency 4.16ms
Power-on to ready (sec) (typ/max) 25/30
Standby to ready (sec) (typ/max) 25/30
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 1.3.1 and 1.3.11)

Seagate Exos X20z SATA Product Manual, Rev. B 7
www.seagate.com Drive specifications
*SeeSection 1.3.6, "Reliability" for rated MTBF device operating condition requirements.
Temperature gradient (°C per hour max) 20°C (operating)
20°C (nonoperating)
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) 50 Gs typical
Non-Operational Shock (2 ms) 200 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)*0.35% based on 8760 POH
Maximum Rated Workload*Maximum rate of <550TB/year
Workloads exceeding the annualized rate may degrade the drive MTBF and impact prod-
uct 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: 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 600,000
Supports Hotplug operation per
Serial ATA Revision 3.3 specification
Yes
Drive specification ST20000NM001J

Seagate Exos X20z SATA Product Manual, Rev. B 8
www.seagate.com Drive specifications
1.2.2 Formatted capacity
*One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and formatting.
NOTE LBA Counts for drive capacities greater than 8TB are calculated based upon the
SFF-8447 standard publication. ftp://ftp.seagate.com/sff/SFF-8447.PDF
1.2.2.1 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 1.5.3.1, "Identify Device command" (words 60-61 and 100-103) for additional information about 48-bit
addressing support of drives with capacities over 137GB.
1.2.3 Recording and interface technology
1.2.4 Start/stop times
NOTE Power-on to ready time is based on typical operating conditions, and default
full current spin-up profile.
ST models Formatted
capacity*
Guaranteed
sectors
Bytes per
logical sector
ST20000NM001J 20TB 39,063,650,304 512 (Default)
Interface Serial ATA (SATA)
Recording method Perpendicular
Recording density, KBPI (Kb/in max) 2480
Track density, KTPI (ktracks/in avg) 540
Areal density (Gb/in2avg) 1340
Spindle speed (RPM) (± 0.2%) 7200
Internal data transfer rate (Mb/s max) 2880
Sustained data transfer rate (MiB/s max) 249
I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)
Power-on to Ready (sec) (typ/max) 25/30
Standby to Ready (sec) (typ/max) 25/30
Ready to spindle stop (sec) (max) 20

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1.2.5 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 2 on page 20 .
1.2.5.1 Power consumption
Power requirements for the drives are listed in Table 2. 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 SMART specification, which may
increase acoustic and power to operational levels
Table 2 DC power requirements (20TB)
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% ± 10% Total
Avg Idle Current * 0.30 0.30 5.15
Advanced Idle Current *
Idle_A 0.30 0.30 5.13
Idle_B 0.26 0.17 3.36
Idle_C 0.25 0.12 2.64
Standby 0.20 0.01 1.13
Maximum Start Current
DC (peak DC) 0.86 1.63
AC (Peak DC) 0.96 2.96
Delayed motor start (max) DC 0.43 0.09
Operating current (random read 4K16Q):
Typical DC 0.35 0.62 9.17
Maximum DC 0.36 0.62
Maximum DC (peak) 1.03 2.33
Operating current (random write 4K16Q)
Typical DC 0.39 0.49 7.84
Maximum DC 0.40 0.49
Maximum DC (peak) 1.21 2.33
Operating current (sequential read 64K16Q)
Typical DC 0.81 0.31 7.77
Maximum DC 0.82 0.31
Maximum DC (peak) 1.20 1.35
Operating current (sequential write 64K16Q)
Typical DC 0.80 0.31 7.70
Maximum DC 0.81 0.31
Maximum DC (peak) 1.04 0.97

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1.2.5.1.1 Typical current profiles
Figure 1. Typical 5V and 12V startup and operation current profiles
1.2.5.2 Conducted noise
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.
1.2.5.3 Voltage tolerance
Voltage tolerance (including noise):
5V ± 5%12V ± 10%
+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.

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1.2.5.4 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)
Power on reset
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)

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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
SMART 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.
Power Condition Name Manufacturer Default Timer Values
Idle_a 100 ms
Idle_b 2 min
Idle_c 4 min
Standby_z 15 min

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PowerChoice Supported Extended Power Condition Feature Subcommands
PowerChoice Supported Extended Power Condition Identifiers
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

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1.3 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).
NOTE To maintain optimal performance drives should be run at nominal drive
temperatures and humidity.
See Section 1.3.6, "Reliability" for rated MTBF device operating condition
requirements.
1.3.1 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 1.4.4). 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.
1.3.2 Humidity
The values below assume that no condensation on the drive occurs. Maximum wet bulb temperature is 84.2°F (29°C).
1.3.2.1 Relative humidity
Effective Altitude (sea level)
Operating: 5% to 95% non-condensing relative humidity with a maximum gradient of 20% per hour.
Nonoperating: 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.)
Nonoperating: –304.8 m to 12,192 m (–1000 ft. to 40,000+ ft.)

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1.3.2.2 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.
1.3.2.3 Shock
a. Operating
The drive will operate without error while subjected to intermittent shock pulses not exceeding 50g typical at a duration of 2ms.
b. Non-operating
The drive will operate without non-recoverable errors after being subjected to shock pulses not exceeding 200g at a duration of
2ms.
1.3.2.4 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.

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1.3.3 Acoustics
Drive acoustics are measured as overall A-weighted acoustic sound power levels (no pure tones). All measurements
are consistent with ISO document 7779. Sound power measurements are taken under essentially free-field conditions
over a reflecting plane. For all tests, the drive is oriented with the cover facing upward.
NOTE 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
)
*During periods of drive idle, some offline activity may occur according to the SMART specification, which may increase acoustic and power to
operational levels.
1.3.4 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.
1.3.5 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:
Table 3 Fluid Dynamic Bearing (FDB) motor acoustics
Idle* Performance seek
All models 2.8 bels (typ)
3.0 bels (max)
3.2 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
A EN 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

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1.3.6 Reliability
1.3.6.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF)
The production disk drive shall achieve an annualized failure-rate of 0.35% (MTBF of 2,500,000 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 <= 30°C
Ambient wet bulb temp <= 26°C
Typical workload
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. 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.
1.3.7 HDD and SSD Regulatory Compliance and Safety
For the latest regulatory and compliance information see: www.seagate.com/support scroll down
the page and click the Compliance, Safety and Disposal Guide link.
1.3.8 Regulatory Models
The following regulatory model number represent all features and configurations within the series:
Regulatory Model Numbers: STL014
Nonrecoverable read errors 1 per 1015 bits read, max
Load unload cycles 600,000 cycles
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: 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.
Preventive maintenance None required.

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1.3.9 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.
1.3.10 Reference documents
Supported Standards
Serial ATA Revision 3.3 specification
ANSI Documents
INCITS 522-2014 ATA/ATAPI Command Set - 3 (ACS-3)
INCITS 537-2016 Zoned-device ATA Command Set (ZAC)
Specification for Acoustic Test Requirement and Procedures
Seagate part number: 30553-001
In case of conflict between this document and any referenced document, this document takes precedence.

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1.3.11 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 the 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.