Samsung MZ7LM1T9HMJP 1.92TB PM863a Series SATA 6Gb/s 2.5 7mm Enterprise Data Center / Mixed Use Solid State Drive

General

Brand	Samsung
Model	PM863a Series
Capacity	1.92TB
Usage Class	Enterprise Data Center / Mixed Use

Interface

Host Interface	SATA 6Gb/s
Total Interface Bandwidth	6 Gb/s

Physical Dimension

Form Factor	2.5 7mm

Flash & Endurance

NAND Flash	Samsung 48-layer 3D V-NAND TLC
Drive Writes Per Day	1.3
Total Bytes Written	2630 TBW

Performance

Sequential Read	520 MB/s
Sequential Write	480 MB/s
Random Read IOPS	97000
Random Write IOPS	24000
Average Latency	120 μs

Reliability

Mean Time Between Failures	2.0 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	MZ-7LM1T90

Engineer's Note

Compared with the previous-generation MZ-7LM1T90, the PM863a MZ7LM1T9HMJP upgrades to Samsung 48-layer 3D V-NAND TLC and delivers 2,630 TBW at 1.3 DWPD, giving this 1.92TB drive a stronger endurance profile for its capacity class. It is a strong fit for read-intensive enterprise SATA tiers and server boot/data-cache roles, combining near-saturation SATA performance at 520/480 MB/s with 97,000/24,000 IOPS to provide better mixed-workload responsiveness than the earlier platform.

Endurance & Reliability

With an endurance rating of 2630 TBW and 1.3 DWPD, the MZ7LM1T9HMJP is designed to handle sustained daily writes over a long service life, making it more than sufficient for typical enterprise system-boot, application, and mixed-read/write workloads. In practical terms, under normal server usage, this level of endurance supports years of dependable operation with comfortable write headroom, helping procurement teams deploy it with confidence for long-term infrastructure use. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its ultra-low UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very high standard of data integrity and overall drive reliability expected in business-critical environments.

Technical Specs & Insights

1. The SATA 6Gb/s interface makes this drive a drop-in upgrade for existing enterprise servers and storage arrays, delivering near bus-limit sequential performance without requiring a platform refresh.
2. Its sustained sequential read capability accelerates boot storms, backup restores, and large-file access, helping data-heavy applications move content quickly and predictably.
3. Strong random read performance supports dense virtualization, OLTP databases, and metadata-intensive workloads by serving high volumes of small requests with less application-side waiting.
4. A 1.3 DWPD endurance rating enables reliable day-after-day write activity in mixed-use enterprise environments, reducing replacement risk across the service life of the SSD.
5. Samsung 48-layer 3D V-NAND TLC combined with 120 µs typical latency delivers a balanced mix of flash density, cost efficiency, and consistently fast response times for latency-sensitive business systems.

Capacity Sweet

Reference capacities in the same series for MPN MZ7LM1T9HMJP (1.92TB): Lower capacity: 960GB Higher capacity: 3.84TB Typical enterprise-series performance positioning: 960GB: sequential read/write and random IOPS are generally in the same class as 1.92TB 1.92TB: sequential read/write and random IOPS remain broadly consistent with the series norm 3.84TB: sequential read/write and random IOPS are also broadly similar, with capacity being the main differentiator Capacity positioning analysis: The 1.92TB model sits at the sweet spot of the family. Compared with the 960GB version, it gives much better headroom for OS images, application growth, log retention, and overprovisioning without forcing early drive expansion. Compared with the 3.84TB option, it preserves nearly the same enterprise performance profile while keeping acquisition cost and per-node storage budgets under tighter control. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for about 40 to 60 general-purpose virtual machines per node.

FAQ