Samsung MZWLL1T6HEHP-000D3 1.6TB PM1725a NVMe 1.2 2.5 inch Enterprise Solid State Drive

General

Brand	Samsung
Model	PM1725a
Capacity	1.6TB
Usage Class	Enterprise

Interface

Host Interface	NVMe 1.2
Total Interface Bandwidth	32 Gb/s

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V-NAND 3bit MLC (TLC)
Drive Writes Per Day	5
Total Bytes Written	14600 TBW

Performance

Sequential Read	3300 MB/s
Sequential Write	3000 MB/s
Random Read IOPS	800000
Random Write IOPS	160000
Average Latency	90 μs

Reliability

Mean Time Between Failures	2 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	MZWLL1T6HEGL

Engineer's Note

Compared with the previous-generation MZWLL1T6HEGL, the Samsung PM1725a 1.6TB (MZWLL1T6HEHP-000D3) moves to a faster NVMe 1.2 enterprise platform, delivering up to 3,300/3,000 MB/s and 800,000/160,000 IOPS for higher transaction density and stronger mixed-workload responsiveness. Its 5 DWPD endurance and 14,600 TBW, backed by Samsung V-NAND 3bit MLC (TLC), make it a stronger fit than its predecessor for write-intensive databases, virtualization clusters, and latency-sensitive OLTP deployments.

Endurance & Reliability

With an endurance rating of 14,600 TBW and 5 DWPD, the MZWLL1T6HEHP-000D3 is designed for sustained heavy write activity and can comfortably support typical enterprise system-disk and mixed-workload deployments over many years. In practical terms, for normal OS, application, logging, and virtualized infrastructure use, this level of endurance provides ample write headroom for long-term operation with strong confidence in service life. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17, together with a 2 million hour MTBF, indicates an enterprise-class reliability profile with an extremely low probability of uncorrectable bit errors, helping reduce data risk in business-critical environments.

Technical Specs & Insights

1. The NVMe 1.2 interface cuts protocol overhead and enables deep parallel command queues, helping enterprise databases and virtualized servers respond faster under multi-tenant load.
2. Its 3.3 GB/s sequential read performance speeds up large file ingestion, backup recovery, and analytics job startup, reducing data access bottlenecks in storage-intensive environments.
3. With up to 800,000 random read IOPS, the drive can sustain highly concurrent OLTP, VDI, and metadata-heavy workloads without the sharp latency spikes seen in slower media.
4. Rated for 5 DWPD, it is built for write-intensive enterprise roles such as logging, caching, and hyperconverged infrastructure where consistent daily overwrites are a normal operating condition.
5. Samsung V-NAND 3-bit MLC (TLC) combined with a typical 90 µs latency delivers a strong balance of cost efficiency, predictable flash behavior, and near-instant access times for latency-sensitive business applications.

Capacity Sweet

Lower-capacity reference: 800GB Higher-capacity reference: 3.2TB Within this enterprise SSD family, the 1.6TB model sits at the sweet spot. Compared with the 800GB version, it gives much better capacity headroom for OS images, application binaries, logs, and short-term data growth, reducing early replacement pressure. Compared with the 3.2TB option, it keeps acquisition cost and power budgeting more controlled while delivering essentially the same enterprise-class sequential throughput and random IOPS behavior. It is a strong fit for mid-scale deployments, such as a virtualization cluster hosting about 40 to 60 mixed-workload virtual machines.

FAQ