Seagate IronWolf 125 2.5-Inch Internal NAS Solid State Drives (SSD)
Perfect for creative pro, SOHO, and SME NAS

Overview:

Tough. Ready. Scalable. World's First SSD for NAS

The Seagate IronWolf 125 SSD is designed for everything business NAS, with 24×7 performance to handle multi-user environments across a wide range of capacities. Take your NAS to the next level with the IronWolf 125 SATA SSD, providing pure performance in all-flash array or tiered cache NAS-enabled systems. This enterprisegrade SSD gives you increased durability and peace of mind.

Optimized to Be Tough

• Boost the performance of NAS, which requires faster random access performance
• Maintain fast, consistent performance for read-intensive and mixed workloads
• Choose built-in drive monitoring with enabled NAS with IronWolf Health Management

Always Accessible, Always Ready

• Require less energy to run on 24×7 NAS, and save on cooling and overall energy cost
• Acquire the capacity and endurance to fit a range of applications and workloads

Scalable for Data Growth in NAS

• Leverage a wide portfolio to fit your growing business needs
• Depend on a 5-year limited warranty and included 2-year Data Recovery Services plan

Key Features and Benefits

• SATA 6Gb/s interface for easy deployment
• Seagate DuraWrite™ lossless data reduction technology
• Optimized with AgileArray firmware tuned specifically for NAS
• Power loss data protection circuit
• Enterprise-class reliability with 2Mhr. MTBF and a 5-year limited warranty

Best-Fit Applications

• All-flash array NAS
• Tiered caching on enabled NAS
• Creative pro NAS
• Small, medium enterprise NAS

Features:

IronWolf Health:

Keep Your Data In Good Shape

For all around well-being, you need prevention, intervention, and recovery.

IronWolf Health Management provides all these aspects of care for supported IronWolf and IronWolf Pro hard drives. Thanks to IHM, which operates in popular NAS operating systems, you can prevent external disturbances from affecting the NAS or drive health, proactively intervene and backup your data when the system notifies, and available industry leading rescue and recovery services should a catastrophic event occur.

Actively Protecting Your NAS

IronWolf Health Management (IHM) is designed to operate on enabled NAS systems, populated with supported Ironwolf SSD, Ironwolf HDDs, and Ironwolf Pro HDDs. IHM helps to improve the overall system reliability by showing prevention, intervention, and recovery options.

Schedule. Review. Track.¹

IHM is integrated within the NAS OS in which it allows you to schedule and review each result of the scan when you want to. The NAS OS will keep a log in which it will help track any trends and keep you well aware of how healthy your drive is based on the results of IHM.

Keep an Eye on Your Workload²

IronWolf Health Management allows you to keep an eye on your workload on compatible NAS. With workload charting you are able to see the data traffic with your NAS on a day by day basis, allowing further piece of mind knowing that IronWolf and IronWolf Pro is built tough to handle 24x7 always on use.

Error Codes and Suggestions

IronWolf Health provides a list of error codes and a suggestion on what you need to do to fix the issues. The chart below helps provides suggestions for each code.

Output Code	Test Result	Suggested Actions to Fix the Issue
100	Notification	Abnormally high operating temperature has been detected. Please ensure rear ventilation ports are not blocked, and try to lower the ambient temperature.
101	Notification	Connection issue on your NAS and hard drive interface has been detected. Please make sure the hard drive is properly installed in the chassis or drive tray, and that the tray is properly installed in your NAS. If issue persists, please contact the NAS Support Team.
102	Notification	Excessive physical shock to the hard drive has been detected. Please ensure your hard drive and NAS are placed on a stable surface. If issue persists, please contact the NAS Support Team.
105	Notification	Excessive vibration has been detected. Please ensure your NAS is placed on a stable surface. If issue persists, please contact the NAS Support Team.
106	Notification	Excessive host resets have been detected. Please ensure the hard drive is properly installed in the chassis or drive tray, and perform a power cycle. If issue persists, please contact the NAS Support Team.
>=200	Warning	IHM has spotted some errors and a full SMART scan has been automatically triggered for your convenience. If the scan fails, please contact Seagate Customer Care.

¹ IronWolf Health Management features may vary from one NAS vendor to another. For further information, please refer to the vendor IHM manual
² Workload charting is only available on compatible NAS. Please check NAS vendor for further details.

Specifications:

Specifications
Capacity	4TB	2TB	1TB	500GB	250GB
Standard Model	ZA4000NM10002	ZA2000NM10002	ZA1000NM10002	ZA500NM10002	ZA250NM10002
Features
Interface	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s	SATA 6Gb/s
NAND Flash Type	3D TLC	3D TLC	3D TLC	3D TLC	3D TLC
Form Factor	2.5 in × 7mm	2.5 in × 7mm	2.5 in × 7mm	2.5 in × 7mm	2.5 in × 7mm
Performance
Sequential Read (Max, MB/s), 128KB QD321	560	560	560	560	560
Sequential Write (Max, MB/s), 128KB QD321	540	540	540	540	540
Random Read (Max, IOPS), 4KB QD321	95,000	95,000	95,000	95,000	95,000
Random Write (Max, IOPS), 4KB QD321	90,000	90,000	90,000	90,000	90,000
Endurance/Reliability
Total Bytes Written (TB)	5600	2800	1400	700	300
Nonrecoverable Read Errors per Bits Read	1 per 10E17	1 per 10E17	1 per 10E17	1 per 10E17	1 per 10E17
Mean Time Between Failures (MTBF, hours)	1,800,000	1,800,000	1,800,000	1,800,000	1,800,000
Warranty, Limited (years)	5	5	5	5	5
Power Management
Power Supply	5V	5V	5V	5V	5V
+5 Active Max Average Power (W)	2.8	2.6	2.4	2.3	2.3
Average Idle Power (mW)	140	140	130	115	110
DevSleep (mW)	5	5	5	5	5
Environmental
Temperature, Operating Internal (°C)	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70
Temperature, Nonoperating (°C)	–40 to 85	–40 to 85	–40 to 85	–40 to 85	–40 to 85
Shock, Nonoperating: 0.5ms (Gs)	1500	1500	1500	1500	1500
Physical
Height (mm/in, max)	7.10mm/0.279in	7.10mm/0.279in	7.10mm/0.279in	7.10mm/0.279in	7.10mm/0.279in
Width (mm/in, max)	70.10mm/2.759in	70.10mm/2.759in	70.10mm/2.759in	70.10mm/2.759in	70.10mm/2.759in
Depth (mm/in, max)	100.35mm/3.950in	100.35mm/3.950in	100.35mm/3.950in	100.35mm/3.950in	100.35mm/3.950in
Weight (g/lb)	50g/0.110lb	50g/0.110lb	50g/0.110lb	50g/0.110lb	50g/0.110lb

¹ Performance data is based on testing under certain workload conditions and is subject to change. Performance assumes that a typical enterprise data workload has 80% entropy.
² 3.84TB, 1.92TB, and 960GB capacity points require 12V in addition to 5V power.

Documentation:

Download the Seagate IronWolf 125 2.5-Inch Internal NAS SSD Datasheet (.PDF)