Table of Contents
Seagate 125 User Manual
Displayed below is the user manual for 125 by Seagate which is a product in the Internal Solid State Drives category. This manual has pages.
Related Manuals
Seagate® IronWolf® 125 SSD
Product Manual
User Capacity Model
250 GB ZA250NM10002
500 GB ZA500NM10002
1000 GB ZA1000NM10002
2000 GB ZA2000NM10002
4000 GB ZA4000NM10002
100866980, Rev C
July 2020
© 2020, Seagate Technology LLC All rights reserved. Publication number: 100866980, Rev C, July 2020.
Seagate Technology reserves the right to make changes to the product(s) or information disclosed herein at any time without notice.
Seagate, Seagate Technology and the Spiral logo are registered trademarks of Seagate Technology LLC in the United States and/or other countries. IronWolf and SeaTools are either trademarks or registered trademarks of
Seagate Technology LLC or one of its affiliated companies in the United States and/or other countries. All other trademarks or registered trademarks are the property of their respective owners.
No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC. Call 877-PUB-TEK1(877-782-8351) to request permission.
When referring to drive capacity, one gigabyte, or GB, equals one billion bytes and one terabyte, or TB, equals one trillion bytes. Your computer’s operating system may use a different standard of measurement and report
a lower capacity. In addition, some of the listed capacity is used for formatting and other functions, and thus will not be available for data storage. Actual quantities will vary based on various factors, including file size, file
format, features and application software. Actual data rates may vary depending on operating environment and other factors. The export or re-export of hardware or software containing encryption may be regulated by
the U.S. Department of Commerce, Bureau of Industry and Security (for more information, visit www.bis.doc.gov), and controlled for import and use outside of the U.S. Seagate reserves the right to change, without notice,
product offerings or specifications.
Revision History
Version and Date Description of Changes
Rev C, July 2020 Update the following:
Section 1, Introduction
Section 2, Specifications
Section 7, Feature Details
Rev B, May 2020 Formatting changes.
Rev A, May 2020 First document release.
Seagate IronWolf 125 SSD Product Manual, Rev C 3
Contents
Seagate Technology Support Services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1 Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.1 Models and Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.2 Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2.3 Power . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.4 Environmental Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.5 Reliability and Endurance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3. Mechanical Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.1 Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4. Pin and Signal Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Power Pin Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
5. Supported ATA Command List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1 ATA Feature Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.2 ATA Command Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6. SMART Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1 SMART IDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
7. Feature Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1 Flash Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1.1 Error Correction Code (ECC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1.2 Wear Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1.3 Bad Block Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1.4 TRIM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1.5 SMART . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7.1.6 Over Provisioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1.7 Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1.8 Thermal Throttling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1.9 Low Power Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1.9.1 DIPM/HIPM/DEVSLP Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.1.10 Garbage Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
7.2 Advanced Device Security Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.2.1 Secure Erase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3 SSD Lifetime Management Terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.1 Media Wear Indicator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.3.2 Read Only Mode (End of Life) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.4 Adaptive Approach to Performance Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.4.1 Predict and Fetch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.4.2 Throughput . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Contents
Seagate IronWolf 125 SSD Product Manual, Rev C 4
8. Safety Certifications, and Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
8.1 Regulatory Model Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Seagate IronWolf 125 SSD Product Manual, Rev C 5
Seagate Technology Support Services
For Internal SSD Support, visit: https://www.seagate.com/support/products/
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/seagate-recovery-services/recover/
For Seagate OEM and Distribution partner and Seagate reseller portal, visit: http://www.seagate.com/partners
Seagate IronWolf 125 SSD Product Manual, Rev C 6
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1. Introduction
The Seagate® IronWolf® 125 SSD is a purpose-built NAS SATA SSD for connected home and small office/home office
(SOHO), and delivers high performance and fast responsiveness for media demanding applications and multi-user
environments.
Table 1 The IronWolf 125 SSD Features
Feature Description
Capacity
(User)
250 GB, 500 GB, 1000 GB, 2000 GB, 4000 GB
Certifications,
Eco-Compliance
CE, UL, cUL, RCM, BSMI, KCC, TUV, Microsoft WHQL, VCCI, CB
RoHS, WEEE, EAEU RoHS (Russian)
Secure Data Deletion
See Section 8. Safety Certifications, and Compliance
Dimension
Width: 69.85±0.25 millimeters
Length: 100.10±0.25 millimeters
Height: Maximum 7.10 millimeters
Endurance
Total Bytes Written
250GB: 300 TB
500 GB: 700 TB
1000 GB: 1400 TB
2000 GB: 2800 TB
4000 GB: 5600 TB
Logical Block
Size
512 bytes
Form Factor 2.5 inch × 7 mm Standard SSD
Interface
Compliance
Fully compliant with ATA-8/ACS-3 Standard
Compliant with SATA Revision 3.2
Supported protocol AHCI and ASC2 command set
Compatible with SATA 1.5 Gbps, 3 Gbps, and 6Gbps interfaces
PIO, DMA, UDMA supported
Native Command Queuing (NCQ): up to 32 commands
Data Set Management Command Trim support
NAND 3D TLC
Performance
Random
Read: Up to 95,000 IOPS
Write: Up to 90,000 IOPS
See Section 2.2 Performance
Performance
Sequential
Read: Up to 560MB/s
Write: Up to 540MB/s
Power
Consumption
Active mode: <2800mW
Idle mode: <140mW
DEVSLP: 5mW
See Section 2.3 Power.
Power Loss Data
Protection
To protect your data, you must send a Standby Immediate command (0xE1h) before you remove
power. The IronWolf 125 SSD does not provide data protection for a sudden power loss.
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1.1 Reference Documents
In case of conflict between this document and the following reference document, this document takes precedence.
SATA Specifications
—Serial ATA Revision 3.2
—SATA-IO Commands for ATA-8
Trusted Computing Group (TCG) Documents
—Storage Work Group Security Subsystem Class: Opal, Version 2.00
Solid State Drive Requirements and Endurance Test Methods
—JESD218
—JESD219
Seagate Documentation
—SeaTools™ SSD GUI User Guide - Publication Number: 100837824
—SeaChest for SSD User Guide - Publication Number: 100847684
—Seagate Safety and Compliance Guide - Publication Number: 100860164
Power
Management
OS-aware hot-plug/hot-swap support
5 V SATA Supply
Host-initiated power management
Device-initiated power management
HIPM/DEVSLP Mode
Power On Ready See Section 2.3 Power.
Reliability
SMART thermal monitoring
MTBF: 1.8 million hours
UBER: 1 read error per 1017bits read
End-to-End data-path protection
Shock and
Vibration
Shock
Non-Operating: 1500G, duration 0.5m
See Section 2.4 Environmental Conditions
Vibration
Non-Operating: Random, 1.52 Grms, 20 to 80
Hz Frequency
Temperature
Operating: 0°C to 70°C
Non-operating: -40°C to 85°C
Voltage 5V±5%
Data Retention 12 months power-off retention at 30°C per JEDEC client standard
Waranty Five years, or when the device reaches Host TBW, whichever happens first. Endurance rating valid
for SSD Life Remaining > 1% (SMART E7h>1).
Weight 50 g, 1.76 Oz ±5%
Table 1 The IronWolf 125 SSD Features (continued)
Feature Description
Seagate IronWolf 125 SSD Product Manual, Rev C 8
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2. Specifications
2.1 Models and Capacity
NOTE About capacity:
Sector Size: 512 Bytes
User-addressable LBA count = (97696368) + (1953504 x (Desired Capacity
in Gb-50.0)) From International Disk Drive Equipment and Materials
Association (IDEMA) (LBA1-03_standard.doc)
2.2 Performance
NOTE About performance:
Fresh out of box (FOB) performance obtained on newly-formatted drive.
Performance may vary based on the SSD’s firmware version, system
hardware, and configuration
Performance is based on CrystalDiskMark v.6.0.0 ×64 on Windows 10 host.
Table 2 Models and Capacity
Capacity LBA Count Models
250 GB 468,862,128 ZA250NM10002
500 GB 937,703,088 ZA500NM10002
1000 GB 1,875,385,008 ZA1000NM10002
2000 GB 3,750,748,848 ZA2000NM10002
4000 GB 7,501,476,528 ZA4000NM10002
Table 3 Random and Sequential Read and Write Performance
Parameter 250 GB 500 GB 1000 GB 2000 GB 4000 GB
Sequential Read (MB/s) 560 560 560 560 560
Sequential Write (MB/s) 540 540 540 540 540
Random Read (IOPS) (4K) 95,000 95,000 95,000 95,000 95,000
Random Write (IOPS) (4K) 90,000 90,000 90,000 90,000 90,000
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2.3 Power
NOTE About power consumption:
The measured power voltage is 5 V.
The average value of power consumption is achieved based on 100%
conversion efficiency.
Sequential R/W is measured while testing 4000 MB 5 times by
CyrstalDiskMark.
Power Consumption can differ according to flash configuration and
platform.
2.4 Environmental Conditions
NOTE Temperature is measured without condensation. Operating mode
temperature is measured by temperature sensor, SMART Attribute C2h.
NOTE Shock and vibration results assume that the SSD is mounted securely with the
input vibration applied to the SSD mounting. These specifications do not cover
connection issues that may result from testing at this level. The measured
specification is in root mean square (RMS) form.
Non-operating Shock. The limits of non-operating shock applies to all
conditions of handling and transportation. This includes both isolated
SSD and integrated SSDs. Shock may be applied in the X, Y, or Z-axis.
Table 4 Power Consumption
Power Consumption 250 GB 500 GB 1000 GB 2000 GB 4000 GB
Read (mW) 2300 2300 2400 2600 2800
Write (mW) 2300 2300 2400 2600 2800
Idle (mW) 110 115 130 140 140
DEVSLP (MW) 5 5 5 5 5
Table 5 Temperature, Humidity, Shock
Specification Value
Temperature
Operating (case temperature at specific airflow) 0°C to 70°C
-40°C to 85°C
Humidity
Operating
Non-operating (storage)
90%
93%
Shock
Non-operating 1,500 G, duration 0.5 ms
Vibration
Non-operating 1.52 GRMS, (20Hz to 80Hz, Frequency)
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Non-Operating Vibration. The limits of non-operating vibration shall
apply to all conditions of handling and transportation. This includes both
isolated SSD and integrated SSDs. Vibration may be applied in the X, Y, or
Z-axis.
2.5 Reliability and Endurance
NOTE About endurance:
The SSD achieves the specified MTBF in an operational environment that
complies with the operational temperature range specified in this manual.
Operating temperatures are measured by temperature sensor, SMART
Attribute ID C2h.
Endurance rating valid for SSD Life Remaining > 1% (SMART E7h>1).
Endurance is characterized while running Client JESD219A workload (per
JESD218A specification).
Table 6 Reliability and Endurance
Specification Value
Mean time between failures (MTBF) 1.8 million hours
Bit Error Rate 1 error in 1017 bits read
Endurance Total Bytes Written
250GB: 300 TB
500 GB: 700 TB
1000 GB: 1400 TB
2000 GB: 2800 TB
4000 GB: 5600 TB
Seagate IronWolf 125 SSD Product Manual, Rev C 11
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3. Mechanical Information
3.1 Dimensions and Weight
Weight 50 g, 1.76 Oz +/- 5%
Height: Maximum, 7 mm+0.10/-0.30
Width: 69.85 mm±0.25 mm
Length: 100.10 mm±0.25 mm
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NOTE All dimensions are in millimeters.
Figure 1 Top View
Seagate IronWolf 125 SSD Product Manual, Rev C 13
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Figure 2 Bottom View
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4. Pin and Signal Descriptions
NOTE Key and spacing separate the signal and power segments.
4.1 Power Pin Definitions
NOTE About Power Pin Signal Definitions:
Key and spacing separate the signal and power segments.
Uses 5 V power only; 3.3 V (P1-P2) and 12 V (P13-P15) power are not used.
Table 7 Serial ATA Connector Pin Signal Definitions
Pin Name Definition
S1 Ground Ground
S2 A+ Differential signal pair A+ and A-
S3 A-
S4 Ground Ground
S5 B- Differential signal pair B- and B+
S6 B+
S7 Ground Ground
Table 8 Power Pin Definitions
Pin Function Definition
P1 not used Not Used (3.3 V)
P2 V33 Not Used (3.3 V)
P3 DEVSLP SATA PHY Power Control
P4 GND Ground
P5 GND Ground
P6 GND Ground
P7 V5 5 V Power, Precharge
P8 V5 5 V Power
P9 V5 5 V Power
P10 GND Ground
P11 Reserved Reserved
P12 GND Ground
P13 not used Not Used (12 V pre-charge)
P14 V12 Not Used (12 V)
P15 V12 Not Used (12 V)
Seagate IronWolf 125 SSD Product Manual, Rev C 15
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5. Supported ATA Command List
The IronWolf 125 SSD complies with ATA-8. See Section 1.1 Reference Documents. All mandatory and many optional
commands and features are supported.
5.1 ATA Feature Set
The following table summarizes the ATA feature set and commands that the IronWolf 125 SSD supports.
5.2 ATA Command Description
Table Legend:
Y means Support.
O means Option, default is No support.
- means No support.
Table 9 ATA Feature Set
Feature Supported
48-Bit Address feature set Yes
General feature set Yes
Native Command Queuing (NCQ) feature set Yes
Power Management feature set Yes
Security feature set Yes
SMART feature set Yes
Table 10 ATA Command Description
Op Code Support Description Op Code Support Description
00h Y NOP B6h 12h - NV Cache: QUERY NV CACHE PINNED
SET DMA EXT
03h - CFA REQUEST EXTENDED ERROR B6h 13h - NV Cache: QUERY NV CACHE MISSES
DMA EXT
06h Y DATA SET MANAGEMENT B6h 14h - NV Cache: FLUSH NV CACHE
08h - DEVICE RESET C4h Y READ MULTIPLE
0Bh - REQUEST SENSE DATA EXT C5h Y WRITE MULTIPLE
10h Y RECALIBRATE C6h Y SET MULTIPLE MODE
11h-1Fh - RECALIBRATE C7h - READ DMA QUEUED
20h Y READ SECTOR(S) C8h Y READ DMA
21h Y READ SECTOR(S) WITHOUT RETRY C9h Y READ DMA WITHOUT RETRY
Seagate IronWolf 125 SSD Product Manual, Rev C 16
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Op Code Support Description Op Code Support Description
22h - READ LONG CAh Y WRITE DMA
23h - READ LONG WITHOUT RETRY CBh Y WRITE DMA WITHOUT RETRY
24h Y READ SECTOR(S) EXT CCh - WRITE DMA QUEUED
25h Y READ DMA EXT CDh - CFA WRITE MULTIPLE WITHOUT ERASE
26h - READ DMA QUEUED EXT CEh Y WRITE MULTIPLE FUA EXT
27h Y READ NATIVE MAX ADDRESS EXT D1h - CHECK MEDIA CARD TYPE
29h Y READ MULTIPLE EXT DAh - GET MEDIA STATUS
2Ah - READ STREAM DMA EXT DEh - MEDIA LOCK
2Bh - READ STREAM EXT DFh - MEDIA UNLOCK
2Fh Y READ LOG EXT E0h Y STANDBY IMMEDIATE
30h Y WRITE SECTOR(S) E1h Y IDLE IMMEDIATE
31h Y WRITE SECTOR(S) WITHOUT RETRY E2h Y STANDBY
32h - WRITE LONG E3h Y IDLE
33h - WRITE LONG WITHOUT RETRY E4h Y READ BUFFER
34h Y WRITE SECTOR(S) EXT E5h Y CHECK POWER MODE
35h Y WRITE DMA EXT E6h Y SLEEP
36h - WRITE DMA QUEUED EXT E7h Y FLUSH CACHE
37h Y SET MAX ADDRESS EXT E8h Y WRITE BUFFER
38h - CFA WRITE SECTORS WITHOUT
ERASE E9h Y READ BUFFER DMA
39h Y WRITE MULTIPLE EXT EAh Y FLUSH CACHE EXT
Table 10 ATA Command Description (continued)
Seagate IronWolf 125 SSD Product Manual, Rev C 17
www.seagate.com
Table 11 ATA Command List (continued)
Op Code Support Description Op Code Support Description
3Ah - WRITE STREAM DMA EXT EBh Y WRITE BUFFER DMA
3Bh - WRITE STREAM EXT ECh Y IDENTIFY DEVICE
3Ch - WRITE VERIFY EDh - MEDIA EJECT
3Dh Y WRITE DMA FUA EXT EEh - IDENTIFY DEVICE DMA
3Eh - WRITE DMA QUEUED FUA EXT EFh 01h - SET FEATURES: Enable 8-bit PIO
transfer mode (CFA feature set only)
3Fh Y WRITE LOG EXT EFh 02h Y SET FEATURES: Enable write cache
40h Y READ VERIFY SECTOR(S) EFh 03h Y SET FEATURES: Set transfer mode
based on value in Count field
41h Y READ VERIFY SECTOR(S) WITHOUT
RETRY EFh 05h Y SET FEATURES: Enable advanced power
management
42h Y READ VERIFY SECTOR(S) EXT EFh 06h - SET FEATURES: Enable Power-Up In
Standby feature set
44h - Reserved EFh 07h - SET FEATURES: Power-Up In Standby
feature set device spin-up
45h OWRITE UNCORRECTABLE EXT EFh 0Ah - SET FEATURES: Enable CFA power
mode 1
47h Y READ LOG DMA EXT EFh 0Bh - SET FEATURES: Enable
Write-Read-Verify feature set
50h - FORMAT TRACK EFh 10h 01h - SET FEATURES: Enable use of Serial ATA
feature
51h - CONFIGURE STREAM EFh 10h 02h Y SET FEATURES: Enable DMA Setup FIS
Auto-Activate optimization
57h Y WRITE LOG DMA EXT EFh 10h 03h Y
SET FEATURES: Enable Device-initiated
interface power state (DIPM)
transitions
60h Y READ FPDMA QUEUED EFh 10h 04h - SET FEATURES: Enable use of Serial ATA
feature
61h Y WRITE FPDMA QUEUED EFh 10h 05h - SET FEATURES: Enable use of Serial ATA
feature
70h Y SEEK EFh 10h 06h O SET FEATURES: Enable Software
Settings Preservation (SSP)
71-76h - SEEK EFh 10h 07h Y
SET FEATURES: Enable Device
Automatic Partial to Slumber
transitions
77h Y SET DATE AND TIME EXT EFh 10h 09h O SET FEATURES: Enable Device Sleep
Seagate IronWolf 125 SSD Product Manual, Rev C 18
www.seagate.com
Table 12 ATA Command List (continued)
Op Code Support Description Op Code Support Description
78h Y ACCESSIBLE MAX ADDRESS
CONFIGURATION EFh 42h - SET FEATURES: Enable Automatic
Acoustic Management feature set
79-7Fh - SEEK EFh 43h - SET FEATURES: Set Maximum Host
Interface Sector Times
87h - CFA TRANSLATE SECTOR EFh 44h - SET FEATURES: Vendor Specific ECC
byte
90h Y EXECUTE DEVICE DIAGNOSTIC EFh 55h Y SET FEATURES: Disable read look-ahead
feature
91h Y INITIALIZE DEVICE PARAMETERS EFh 5Dh - SET FEATURES: Enable release
interrupt
92h Y DOWNLOAD MICROCODE EFh 5Eh - SET FEATURES: Enable service interrupt
93h Y DOWNLOAD MICROCODE DMA EFh 5Fh - SET FEATURES: Enable NDRQ Feature
94h - STANDBY IMMEDIATE EFh 66h Y SET FEATURES: Disable reverting to
power-on defaults
95h - IDLE IMMEDIATE EFh 81h - SET FEATURES: Disable 8-bit PIO
transfer mode (CFA feature set only)
96h - STANDBY EFh 82h Y SET FEATURES: Disable write cache
97h - IDLE EFh 85h Y SET FEATURES: Disable advanced
power management
98h - CHECK POWER MODE EFh 86h - SET FEATURES: Disable Power-Up In
Standby feature set
99h - SLEEP EFh 8Ah - SET FEATURES: Disable CFA power
mode
A0h - PACKET EFh 8Bh - SET FEATURES: Disable
Write-Read-Verify feature set
A1h - IDENTIFY PACKET DEVICE EFh 90h 01h - SET FEATURES: Disable use of Serial
ATA feature
A2h - SERVICE EFh 90h 02h Y SET FEATURES: Disable DMA Setup FIS
Auto-Activate optimization
B0h D0h Y SMART: READ DATA EFh 90h 03h Y
SET FEATURES: Disable Device-initiated
interface power state (DIPM)
transitions
B0h D1h Y SMART: READ ATTRIBUTE
THRESHOLDS EFh 90h 04h - SET FEATURES: Disable use of Serial
ATA feature
Seagate IronWolf 125 SSD Product Manual, Rev C 19
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Table 12 ATA Command List (continued)
Op Code Support Description Op Code Support Description
B0h D2h Y SMART: ENABLE/DISABLE
AUTOSAVE EFh 90h 05h - SET FEATURES: Disable use of Serial
ATA feature
B0h D3h Y SMART: SAVE ATTRIBUTE VALUES EFh 90h 06h Y SET FEATURES: Disable Software
Settings Preservation (SSP)
B0h D4h Y SMART: EXECUTE OFF-LINE
IMMEDIATE *note2 EFh 90h 07h Y
SET FEATURES: Disable Device
Automatic Partial to Slumber
transitions
B0h D5h Y SMART: READ LOG EFh 90h 09h O SET FEATURES: Disable Device Sleep
B0h D6h Y SMART: WRITE LOG EFh AAh Y SET FEATURES: Enable read look-ahead
feature
B0h D8h Y SMART: ENABLE OPERATIONS EFh BBh - SET FEATURES: Default ECC byte
B0h D9h Y SMART: DISABLE OPERATIONS EFh C2h - SET FEATURES: Disable Automatic
Acoustic Management feature set
B0h DAh Y SMART: RETURN STATUS EFh C3h - SET FEATURES: Enable/Disable the
Sense Data Reporting feature set
B0h DBh Y SMART: ENABLE/DISABLE
AUTOMATIC OFF-LINE EFh CCh Y SET FEATURES: Enable reverting to
power-on defaults
B0h E0h - SMART: Vendor specific EFh DDh - SET FEATURES: Disable release
interrupt
B1h C0h Y DEVICE CONFIGURATION: RESTORE EFh DEh - SET FEATURES: Disable SERVICE
interrupt
B1h C1h Y DEVICE CONFIGURATION: FREEZE
LOCK EFh DFh - SET FEATURES: Disable NDRQ Feature
B1h C2h Y DEVICE CONFIGURATION: IDENTIFY F1h Y SECURITY SET PASSWORD
B1h C3h Y DEVICE CONFIGURATION: SET F2h Y SECURITY UNLOCK
B1h C4h Y DEVICE CONFIGURATION: IDENTIFY
DMA F3h Y SECURITY ERASE PREPARE
B1h C5h Y DEVICE CONFIGURATION: SET DMA F4h Y SECURITY ERASE UNIT
B4h 0000h O SANITIZE DEVICE: SANITIZE STATUS
EXT F5h Y SECURITY FREEZE LOCK
B4h 0011h O SANITIZE DEVICE: CRYPTO
SCRAMBLE EXT F6h Y SECURITY DISABLE PASSWORD
B4h 0012h O SANITIZE DEVICE: BLOCK ERASE EXT F8h Y READ NATIVE MAX ADDRESS
B4h 0014h O SANITIZE DEVICE: OVERWRITE EXT F9h 00h Y SET MAX: SET MAX ADDRESS
Seagate IronWolf 125 SSD Product Manual, Rev C 20
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Table 12 ATA Command List (continued)
Op Code Support Description Op Code Support Description
B4h 0020h O SANITIZE DEVICE: SANITIZE FREEZE
LOCK EXT F9h 01h Y SET MAX: SET MAX PASSWORD
B4h 0040h O SANITIZE DEVICE: SANITIZE
ANTIFREEZE LOCK EXT F9h 02h Y SET MAX: SET MAX LOCK
B6h 00h - NV Cache: SET NV CACHE POWER
MODE EXT F9h 03h Y SET MAX: SET MAX UNLOCK
B6h 01h - NV Cache: RETURN FROM NV
CACHE POWER MODE EXT F9h 04h Y SET MAX: SET MAX FREEZE LOCK
B6h 10h - NV Cache: ADD LBA(S) TO NV
CACHE PINNED SET DMA EXT F9h 05h Y SET MAX: SET MAX SET PASSWORD
DMA
B6h 11h - NV Cache: REMOVE LBA(S) FROM
NV CACHE PINNED SET DMA EXT F9h 06h Y SET MAX: SET MAX UNLOCK DMA
Seagate IronWolf 125 SSD Product Manual, Rev C 21
www.seagate.com
6. SMART Support
The IronWolf 125 SSD supports the SMART command set.
6.1 SMART IDs
Table 13 SMART IDs, Bytes, Byte Index, and Descriptions
Bytes 0 1 2 3 4 5 6 7 8 9 10 11 ?
Description
Byte Index
ID Flag 0 Flag 1 Value Worst DATA Threshold
Number of Accumulation of
Uncorrectable Errors 01h 0Bh 00h 64h 64h Host UNC
Error Count
0 0 0 0 0 32h
Power-On hours Count 09h 12h 00h 64h 64h Power on
hours
0 0 0 0 0 00h
Drive Power Cycle Count 0Ch 12h 00h 64h 64h Power on/off cycles 0 0 0 00h
Spare Blocks Available
10h 12h 00h 64h 64h Spare Blocks
Available by
drive
0 0 0 0 0 00h
Remaining Spare Blocks 11h 12h 00h 64h 64h Remaining
Spare Blocks
by drive
0 0 0 0 0 00h
SATA PHY Error Count A8h 12h 00h 64h 64h SATA PHY error count
(Continue count)
0 0 0 00h
Bad Block Count(Early / Later) Aah 03h 00h Note1* Total Early
Bad Block
Count
00
Total Later
Bad Block
Count 00Ah
Erase count (average, max, erase count) Adh 12h 00h 64h 64h Max Erase
Count
Avg
Erase
Count
Min Erase
Count 0 00h
Unexpected Power Loss count Aeh 12h 00h 64h 64h Unexpected Power
Loss Count
0 0 0 00h
Seagate IronWolf 125 SSD Product Manual, Rev C 22
www.seagate.com
a. Bad Block Count (Early / Later) ID170. Value = (Remaining Spare Blocks by plane)/(Spare Blocks Available by plane) *100. This
formula calculates percentage of spare block. Value is between 100 and 0.
b. Wear Range Delta ID 177. Value = (max erase count - least erase count) / (P-E Cycle) *100 (percentage).
c. SSD Life Remaining ID 231. Value = 100 - ((average erase count / Rated PE Cycle) * 100)
Table 14 SMART IDs, Bytes, Byte Index, and Descriptions--continued
Bytes 0 1 2 3 4 5 6 7 8 9 10 11 ?
Description
Byte Index
ID Flag
0
Flag
1Value Worst DATA Threshold
Wear Range delta
B1h 00h 00h 64h 64h
Wear
Range
delta
Note2*
0 0 0 0 0 0 00h
Unexpected Power Loss
Count C0h 12h 00h 64h 64h Unexpected Power Loss Count 0 00h
Temperature
(only Toshiba or thermo
sensor embedded) C2h 23h 00h
127 -
Current
Temper
ature
127 -
Highest
Temperat
ure
Current
temperature
Lowest
temperature
Highest
temperature 0 00h
Number of accumulation
CRC error
(read/write data FIS CRC
error)
Dah 0Bh 00h 64h 64h SATA PHY error count 0 32h
SSD life remaining E7h 13h 00h 64h 64h Note3
*00 0 0 Throttli
ng level 0 00h
Read Failure Block Count
E8h 13h 00h 64h 64h Flash Read Fail Count
Raw
Read
Error
Rate
? 0 00h
Lifetime Writes to Flash (G
Unit) E9h 0Bh 00h 64h 64h Lifetime Writes to Flash by GiB 0 00h
NAND read (Sectors) Eah 0Bh 00h 64h 64h NAND read (Sectors) 0 00h
Lifetime Writes to Flash
(Sector Unit) Ebh 0Bh 00h 64h 64h Lifetime Writes to Flash by Sector 0 00h
Host Writes (G Unit) F1h 12h 00h 64h 64h Lifetime Writes from Host by GiB 0 00h
Host Reads (G Unit) F2h 12h 00h 64h 64h Lifetime Reads from Host by GiB 0 00h
Seagate IronWolf 125 SSD Product Manual, Rev C 23
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7. Feature Details
7.1 Flash Management
7.1.1 Error Correction Code (ECC)
Flash memory cells deteriorate with use. This can generate random bit errors in the stored data. The IronWolf 125 SSD
applies the LDPC ECC algorithm to detect and correct 340bits/2K Byte errors occur during read process, to make sure
the SSD reads correctly, and to protect data from corruption.
7.1.2 Wear Leveling
NAND flash devices can undergo only a limited number of program/erase cycles. Commonly, the SSD does not use
areas of the flash media evenly. If the SSD updates some areas more frequently than others, this reduces the lifetime of
the device. Wear Leveling extends the life of the NAND Flash by evenly distributing write and erase cycles across the
media.
Seagate’s advanced Wear Leveling algorithm spreads the flash usage throughout the whole flash media area.
Implementing dynamic and static Wear Leveling algorithms improves the life expectancy of the NAND flash.
7.1.3 Bad Block Management
Bad blocks do not function properly and they can contain more invalid bits. This can make stored data unstable and
bad block reliability is not guaranteed. Blocks identified and marked as bad by the manufacturer are called “Early Bad
Blocks”. Bad blocks that develop during the lifespan of the Flash are called “Later Bad Blocks”. Seagate’s bad block
management algorithm detects the factory-produced bad blocks and manages bad blocks that appear with use. This
practice prevents the drive from storing data in bad blocks and improves data reliability
7.1.4 TRIM
The TRIM feature improves the read/write performance and speed of SSDs. SSDs cannot overwrite existing data, so
the available space becomes smaller with each data block use. The TRIM command tells the SSD [through the
operating system] which data blocks can be removed permanently because they are no longer in use. The SSD erases
these unused data blocks.
7.1.5 SMART
SMART, stands for Self-Monitoring, Analysis, and Reporting Technology. SMART is an open standard that allows an SSD
to automatically detect its health and report potential failures. When SMART records a failure, users can replace the
SSD to prevent unexpected outage or data loss. SMART can also inform users of impending failures while there is still
time to copy data to another device.
Seagate IronWolf 125 SSD Product Manual, Rev C 24
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7.1.6 Over Provisioning
Over Provisioning (OP) preserves an additional area beyond user capacity in an SSD, which is not visible to users and
cannot be used by them. OP improves performance and IOPS (Input/Output Operations per Second) by providing the
controller additional space to manage P/E cycles. OP enhances the reliability and endurance as well. Moreover, the
write amplification of the SSD becomes lower when the controller writes data to the flash.
7.1.7 Firmware Upgrade
Firmware provides a set of instructions on how the device communicates with the host. Firmware upgrades are
typically available with added features, fixed compatibility issues, and improved read/write performance.
7.1.8 Thermal Throttling
Thermal throttling prevents components in an SSD from over heating during read and write operations. The IronWolf
125 SSD design provides an on-die and onboard thermal sensor. With this accuracy, firmware can apply different
levels of throttling to protect efficiently and proactively through the SMART reading.
7.1.9 Low Power Management
7.1.9.1 DIPM/HIPM/DEVSLP Mode
SATA interfaces contain two low power management states for power saving: Partial and Slumber modes. For Partial
mode, the device has to resume to full operation within 10 microseconds, whereas the device will spend 10
milliseconds to become fully operational in the Slumber mode. SATA interfaces allow low power modes to be initiated
by Host (HIPM, Host Initiated Power Management) or Device (DIPM, Device Initiated Power Management). As for HIPM,
Partial or Slumber mode can be invoked directly by the software. For DIPM, the device will send requests to enter
Partial or Slumber mode
7.1.10 Garbage Collection
Garbage collection allocates and releases memory to accelerate the read/write processing and improve performance.
When there is less available space, the SSD slows down the read/write processing and implements garbage collection
to release memory.
Table 15 Thermal Throttling
Item Content
tmt1 threshold 68°C per Smart reported
tmt2 threshold 70°C per Smart reported
Protect threshold 80°C per Smart reported
Fatal threshold 120°C from on-die thermal sensor
Resume performance threshold 60°C per Smart reported
Temperature polling frequency Every 1 sec
TMT1_state impact ±10% CE
TMT2_state impact -30% CE
Seagate IronWolf 125 SSD Product Manual, Rev C 25
www.seagate.com
7.2 Advanced Device Security Features
7.2.1 Secure Erase
Secure Erase is a standard SATA format command and it writes all of “0xFF” to fully wipe all the data on hard drives and
SSDs. When this command issues, the SSD controller erases its storage blocks and returns to its factory default
settings.
7.3 SSD Lifetime Management Terms
Here’s an explanation of common terms that describe SSD Lifetime Management.
Total Bytes Written (TBW) measures the lifespan of the SSD. This measurement represents the amount of data
written to the device. To calculate the TBW of an SSD, use the following equation:
TBW = [(NAND Endurance) x (SSD Capacity)] / [WAF]
NAND Endurance. NAND endurance refers to the P/E (Program/Erase) cycle of a NAND flash.
SSD Capacity. The SSD capacity is the specific capacity in total of an SSD.
WAF. Write Amplification Factor (WAF) is a numerical value. This value represents the ratio between the amount
of data that an SSD controller needs to write and the amount of data that the host’s flash controller writes. A WAF,
near 1, guarantees better endurance and lower frequency of data written to flash memory.
TBW in this document is based on the JEDEC 218/219 workload.
7.3.1 Media Wear Indicator
Actual life indicator reported by SMART Attribute 231 (E7h) Life Remaining by percentage. This indicator recommends
User to replace drive when reaching to 0%.
7.3.2 Read Only Mode (End of Life)
When the SSD is aged by program/erase cycles, media wear-out may cause increasing numbers of bad blocks. When
the number of usable good blocks falls outside a defined usable range, the drive notifies the host through AER event
and Critical Warning to enter Read Only Mode to prevent further data corruption. When this happens, the user should
replace the SSD with another one immediately
7.4 Adaptive Approach to Performance Tuning
7.4.1 Predict and Fetch
When the Host tries to read data from the SSD, the SSD performs only one read action after receiving one command.
However, the IronWolf 125 SSD applies Predict and Fetch to improve the read speed. When the host issues sequential
read commands to the SSD, the SSD expects that the following are also read commands. Therefore, before receiving
the next command, flash has prepared the data. This accelerates data processing time, and the host needs less wait
time to receive data.
Seagate IronWolf 125 SSD Product Manual, Rev C 26
www.seagate.com
7.4.2 Throughput
Based on the available space of the SSD, the IronWolf 125 SSD regulates the read/write speed and manages the
performance of throughput. When the SSD has more space, the firmware continuously performs read/write actions.
There is no need yet to implement garbage collection to allocate and release memory to accelerate the read/write
processing and improve performance. When the SSD has less available space, it slows down the read/write processing
and implements garbage collection to release memory.
Seagate IronWolf 125 SSD Product Manual, Rev C 27
www.seagate.com
8. Safety Certifications, and Compliance
You can find up to date information on safety certifications, and component compliance requirements for Seagate
devices on the Seagate Support page, here: https://www.seagate.com/support/
To find Compliance information, scroll down the Seagate Support page to the Compliance section, shown below.
8.1 Regulatory Model Numbers
The following regulatory model number represents all features and configurations in the IronWolf 125 SSD
STA022
Seagate Technology LLC
AMERICAS Seagate Technology LLC 47488 Kato Road, Fremont, California 94538, United States, 510-661-1000
ASIA/PACIFIC Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapore 569877, 65-6485-3888
EUROPE, MIDDLE EAST AND AFRICA Seagate Technology Netherlands BV, Tupolevlaan, 105, 119 PA Schipol-Rijk. the Netherlands
Publication Number: 100866980, Rev C
July 2020