Samsung MZ-7KM1T90 1.92TB SM863 SATA 6Gbps 2.5 inch Mixed Use Solid State Drive

General

Brand	Samsung
Model	SM863
Capacity	1.92TB
Usage Class	Mixed Use

Interface

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

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	V-NAND MLC (32-layer)
Drive Writes Per Day	3.6
Total Bytes Written	12320 TBW

Performance

Sequential Read	520 MB/s
Sequential Write	485 MB/s
Random Read IOPS	97000
Random Write IOPS	28000
Average Latency	100 μs

Reliability

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

Part Number

MPN	MZ-7KM1T9E

Engineer's Note

Compared with the earlier MZ-7KM1T9E, the MZ-7KM1T90 advances the SM863 platform with 32-layer V-NAND MLC and delivers up to 12,320 TBW endurance at 3.6 DWPD, giving infrastructure teams a stronger fit for write-intensive enterprise SATA deployments. With 1.92TB capacity, 520/485 MB/s sequential performance, and 97K/28K random IOPS, it offers a more durable and better-balanced choice for virtualization clusters, OLTP databases, and high-duty boot or caching tiers than typical read-centric SATA SSDs in the same class.

Endurance & Reliability

With an endurance rating of 12,320 TBW and 3.6 DWPD, the MZ-7KM1T90 is designed for sustained write-intensive enterprise workloads and can handle rewriting its full capacity multiple times per day throughout its service life. In typical deployment scenarios, this level of endurance means it can serve very comfortably as a system or application drive for many years, with ample margin for continuous daily operation. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity requirements in business-critical storage environments.

Technical Specs & Insights

1. The SATA interface enables drop-in deployment across mainstream enterprise servers and storage arrays, making upgrades simple while delivering dependable bandwidth for read-heavy production workloads.
2. Its sustained sequential read performance accelerates large-block data access, helping analytics, backup, and media-serving platforms complete bulk reads faster and keep pipelines moving.
3. Strong random read capability supports highly concurrent databases and virtualized environments, reducing storage bottlenecks when many small requests hit the drive at once.
4. The endurance profile is built for write-intensive enterprise duty cycles, giving IT teams confidence in long-term use for logging, caching, and mixed-workload applications.
5. V-NAND MLC with low typical latency provides a balance of consistent responsiveness, durability, and predictable QoS that is well suited for latency-sensitive business systems.

Capacity Sweet

Lower-capacity reference: 960GB Higher-capacity reference: 3.84TB Capacity positioning analysis: In this SSD family, 1.92TB is the sweet-spot capacity. Compared with the 960GB model, it gives much better headroom for OS images, application growth, logs, and overprovisioning, reducing early capacity pressure in always-on enterprise workloads. Compared with the 3.84TB model, it typically delivers a more attractive cost-to-usable-capacity ratio while maintaining essentially the same enterprise-class sequential throughput and random IOPS behavior. This makes 1.92TB especially well suited for mid-scale virtualization clusters, such as boot and utility storage for around 40–60 general-purpose virtual machines.

FAQ