Seagate X18 User Manual

X18 SATA Product Manual

512E* models

Standard

ST18000NM000J ST16000NM000J

* Default configuration is 512E for 512E / 4KN drives.

See

Section 2.2.1 to Fast Format to 4KN in seconds

512E* models

Self-Encrypting

ST18000NM001J ST16000NM001J

100865854, Rev. A

July 2020

Document Revision History

Revision Date Pages affected and Description of changes

Rev. A 07/01/2020 Initial release

Publication number: 100865854, Rev. A July 2020 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

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.

Contents

Seagate® Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

1.1 About the Serial ATA interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.0 Drive specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.1 Specification summary tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

2.2 Formatted capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.1 Fast Format - logical sector size conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2.2.2 LBA mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.3 Recording and interface technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.4 Start/stop times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

2.5 Power specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.1 Power consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.5.2 Conducted noise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5.3 Voltage tolerance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.5.4 Extended Power Conditions - PowerChoice™ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

2.6 Environmental limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.6.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.6.2 Humidity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.6.3 Effective Altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

2.6.4 Shock and Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.7 Acoustics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.8 Test for Prominent Discrete Tones (PDTs). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.9 Electromagnetic immunity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.10 Reliability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.10.1 Annualized Failure Rate (AFR) and Mean Time Between Failures (MTBF) . . . . . . . . . . . . . 19

2.11 HDD and SSD Regulatory Compliance and Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.11.1 Regulatory Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.12 Corrosive environment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.13 Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2.14 Product warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Seagate Exos X18 SATA Product Manual, Rev. A 2

Contents

3.0 Configuring and mounting the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.1 Handling and static-discharge precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.2 Configuring the drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.3 Serial ATA cables and connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

3.4 Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

3.4.1 Mechanical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4.0 About self-encrypting drives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.1 Data encryption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2 Controlled access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2.1 Admin SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2.2 Locking SP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.2.3 Default password . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.3 Random number generator (RNG). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.4 Drive locking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.5 Data bands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.6 Cryptographic erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.7 Authenticated firmware download . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.8 Power requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.9 Supported commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.10 RevertSP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.11 ATA Security Erase Unit Command on SED SATA drives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

4.12 Sanitize Device - CRYPTO SCRAMBLE EXT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

5.0 Serial ATA (SATA) interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.1 Hot-Plug compatibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.2 Serial ATA device plug connector pin definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

5.3 Supported ATA commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

5.3.1 Identify Device command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

5.3.2 Identify Device Data log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.3.3 Device Statistics log . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.3.4 Set Features command . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

5.3.5 S.M.A.R.T. commands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Seagate Exos X18 SATA Product Manual, Rev. A 3

Seagate® Technology Support Services

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 Exos X18 SATA Product Manual, Rev. A 4

www.seagate.com Introduction

1.0 Introduction

This manual describes the functional, mechanical and interface specifications for the following: Seagate® Exos® X18 SATA drive models.

Table 1: Models

512E models

Standard SED

ST18000NM000J ST16000NM000J

ST18000NM001J ST16000NM001J

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  Perpendicular recording technology provides the drives with increased areal density.  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.  T13 Fast Format conversion (see Section 2.2.1)  Top Cover Attached motor for excellent vibration tolerance  Worldwide Name (WWN) capability uniquely identifies the drive.

NOTE Seagate recommends validating the configuration with the selected HBA/RAID

controller manufacturer to ensure use of full capacity is supported.

NOTE The Self-Encrypting Drive models indicated on the cover of this product manual

have provisions for “Security of Data at Rest” based on the standards defined by the Trusted Computing Group (see www.trustedcomputinggroup.org).

Seagate Exos X18 SATA Product Manual, Rev. A 5

www.seagate.com Introduction

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.or

Seagate Exos X18 SATA Product Manual, Rev. A 6

www.seagate.com Drive specifications

2.0 Drive specifications

Unless otherwise noted, all specifications are measured under ambient conditions, at 25°C, and nominal power. For convenience, the phrases the drive and this drive are used throughout this manual to indicate the Exos X18 SATA 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 2 Drive specifications summary

Drive specification

Formatted (512 bytes/sector)* 18TB 16TB

Guaranteed sectors (see Section 2.2)

Heads 18 17

Disks 9

Bytes per logical sector 512

Bytes per physical sector 4096

Recording density, KBPI (Kb/in max) 2470

Track density, KTPI (ktracks/in avg.) 482

Areal density, (Gb/in2 avg) 1146

Spindle speed (RPM) 7200

Internal data transfer rate (Mb/s max) 2899

Sustained data transfer rate OD (MiB/s max) 258 (270 MB/s max) 249 (261 MB/s max)

I/O data-transfer rate (MB/s max) 600

ATA data-transfer modes supported PIO modes 0–4

Cache buffer 256MB (262,144KB)

ST18000NM000J,ST18000NM001J ST16000NM000J, ST16000NM001J

Multiword DMA modes 0–2 Ultra DMA modes 0–6

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

Voltage tolerance (including noise) 5V ± 5%

Operating temperature

Non-Operating temperature –40° to 70°C (Ambient Temperature, see sections 2.6.1 and 2.14)

Temperature gradient (°C per hour max) 20°C (operating)

Seagate Exos X18 SATA Product Manual, Rev. A 7

†

2.0A (optional configuration through Smart Command Transport)

12V ± 10%

5° to 60°C (Drive Reported Temperature)

20°C (nonoperating)

www.seagate.com Drive specifications

Drive specification

Relative humidity

ST18000NM000J,ST18000NM001J ST16000NM000J, ST16000NM001J

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

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 10

Annualized Failure Rate (AFR)

Maximum Rated Workload

0.35% based on 8760 POH

Maximum rate of <550TB/year

bits read

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 600,000

Supports Hotplug operation per

Yes

Serial ATA Revision 3.3 specification

* One GB equals one billion bytes when referring to hard drive capacity. Accessible capacity may vary depending on operating environment and

formatting.

* See Section 2.10, "Reliability" for rated MTBF device operating condition requirements.

Seagate Exos X18 SATA Product Manual, Rev. A 8

www.seagate.com Drive specifications

2.2 Formatted capacity

ST models

ST18000NM000J, ST18000NM001J

ST16000NM000J, ST16000NM001J

Formatted

capacity*

18TB 35,156,656,128

16TB 31,251,759,104 3,906,469,888

Guaranteed

sectors

Bytes per

logical sector

512 (Default)

Guaranteed

4,394,582,016

*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

2.2.1 Fast Format - logical sector size conversion

 Drive supports either 512E or 4KN logical sector size formats  SET SECTOR CONFIGURATION EXT (B2h) command (ACS-4 Standard) quickly converts between 512 and 4096 byte logical

sector size formats

 The selected sector size change occurs immediately upon command completion  Default shipping format is 512E

Table 3 SET SECTOR CONFIGURATION EXT command inputs

Field Description

FEATURE COMMAND CHECK field

COUNT Bit Description

sectors

Bytes per

logical sector

4096 (see Section 2.2.1)

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

 COMMAND CHECK field value is taken from the DESCRIPTOR CHECK field in the descriptor specified by the

SECTOR CONFIGURATION DESCRIPTOR INDEX field

 SECTOR CONFIGURATION DESCRIPTOR INDEX field specifies the Sector Configuration descriptor in the Set Sector

Configuration log page

Seagate Exos X18 SATA Product Manual, Rev. A 9

www.seagate.com Drive specifications

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 4 Sector Configuration descriptors page format (log page 00h)

Offset Ty pe 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

Table 5 Sector Configuration descriptors format

Offset Ty pe 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

Seagate Exos X18 SATA Product Manual, Rev. A 10

www.seagate.com Drive specifications

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 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.

2.3 Recording and interface technology

Interface Serial ATA (SATA)

Recording method Perpendicular

Recording density, KBPI (Kb/in max) 2470

Track density, KTPI (ktracks/in avg) 482

Areal density (Gb/in2 avg) 1146

Spindle speed (RPM) (± 0.2%) 7200

Internal data transfer rate (Mb/s max) 2899

Sustained data transfer rate (MiB/s max) (18TB models) 258

Sustained data transfer rate (MiB/s max) (16TB models) 249

I/O data-transfer rate (MB/s max) 600 (Ultra DMA mode 5)

2.4 Start/stop times

Power-on to ready time is based on typical operating conditions, default full current spin-up profile, and clean shutdown prior to measurement. To ensure a clean shutdown a Flush Cache, Standby, or Standby Immediate command must be completed before removal of interface power.

Power-on to Ready (sec) (typ/max) 25/30

Standby to Ready (sec) (typ/max) 25/30

Ready to spindle stop (sec) (max) 20

NOTE An unexpected power loss event, spin up at cold or hot temperature extremes may

cause the drive to exceed the typical and max time to ready by 5 to 20 seconds. Extended time to ready is dependent on cache state and environmental conditions prior to the unexpected power loss and during the subsequent power on.

Seagate Exos X18 SATA Product Manual, Rev. A 11

www.seagate.com Drive specifications

2.5 Power specifications

The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 2 on page 22 .

2.5.1 Power consumption

Power requirements for the drives are listed in Table 6. Typical power measurements are based on an average of drives tested, under nominal conditions, using 5.0V and 12.0V input voltage at 35°C ambient temperature..

Table 6 DC power requirements (18TB and 16TB)

6.0Gb mode Voltage +5V +12V Watts Regulation ± 5% ± 10% Total Avg Idle Current * 0.30 0.31 5.26 Advanced Idle Current *

Idle_A 0.30 0.31 5.28 Idle_B 0.25 0.19 3.49 Idle_C 0.24 0.13 2.73 Standby 0.23 0.01 1.31

Maximum Start Current

DC (peak DC) 1.01 2.02 AC (Peak DC) 1.08 2.88

Delayed motor start (max) DC 0.51 0.12 Operating current (random read 4K16Q): Typical DC 0.36 0.64 9.45

Maximum DC 0.37 0.65

Maximum DC (peak) 1.10 2.34 Operating current (random write 4K16Q)

Typical DC 0.44 0.35 6.46

Maximum DC 0.45 0.36

Maximum DC (peak) 1.17 2.44 Operating current (sequential read 64K16Q)

Typical DC 0.82 0.31 7.85

Maximum DC 0.83 0.32

Maximum DC (peak) 1.17 1.82 Operating current (sequential write 64K16Q)

Typical DC 0.92 0.31 8.33

Maximum DC 0.93 0.32

Maximum DC (peak) 1.22 0.66

*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels.

Seagate Exos X18 SATA Product Manual, Rev. A 12

www.seagate.com Drive specifications

2.5.1.1 Typical current profiles

Figure 1. Typical 5V and 12V startup and operation current profiles

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.

+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.

2.5.3 Voltage tolerance

Voltage tolerance (including noise):

5V ± 5% 12V ± 10%

Seagate Exos X18 SATA Product Manual, Rev. A 13

www.seagate.com Drive specifications

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.

Power Condition Name Power Condition ID Description

Idle_a 81

Idle_b 82

Idle_c 83

Standby_z 00

Reduced electronics

Heads unloaded. Disks spinning at full RPM

Heads unloaded. Disks spinning at reduced RPM

Heads unloaded. Motor stopped (disks not spinning)

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

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

Seagate Exos X18 SATA Product Manual, Rev. A 14

www.seagate.com Drive specifications

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.

Power Condition Name Manufacturer Default Timer Values

Idle_a 100 ms

Idle_b 2 min

Idle_c 4 min

Standby_z 15 min

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

EPC Subcommand Description

Restore Power Condition Settings

Go to Power Condition

Set Power Condition Timer

Set Power Condition State

Enable EPC Feature Set

Disable EPC Feature Set

PowerChoice Supported Extended Power Condition Identifiers

Power Condition Identifiers Power Condition Name

01 - 80

84 - FE

Standby_z

Reserved

Idle_a

Idle_b

Idle_c

Reserved

All EPC Power Conditions

Seagate Exos X18 SATA Product Manual, Rev. A 15

+ 37 hidden pages