Samsung MZ-7L31T9C 1.92 TB PM897 SATA 6Gb/s 2.5 inch Mixed Use Solid State Drive

General

Brand	Samsung
Model	PM897
Capacity	1.92 TB
Usage Class	Mixed Use

Interface

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

Physical Dimension

Form Factor	2.5

Flash & Endurance

NAND Flash	Samsung V-NAND 6th-Gen TLC
Drive Writes Per Day	3
Total Bytes Written	10512 TBW

Performance

Sequential Read	560 MB/s
Sequential Write	530 MB/s
Random Read IOPS	97000
Random Write IOPS	32000
Average Latency	40 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-7KH1T9

Engineer's Note

Compared with the earlier MZ-7KH1T9, the Samsung PM897 MZ-7L31T9C advances to 6th-Gen V-NAND TLC and pairs it with 3 DWPD / 10,512 TBW endurance, giving it a clear generational advantage for write-intensive enterprise SATA deployments. At 1.92TB, it also delivers near-interface-limit SATA performance of 560/530 MB/s and up to 97,000/32,000 IOPS, making it a strong fit for database logs, virtualization boot/storage tiers, and mixed read-write server workloads that need higher durability without moving to SAS or NVMe.

Endurance & Reliability

With an endurance rating of 10,512 TBW and 3 DWPD, the MZ-7L31T9C is built for sustained enterprise write workloads and can support writing the full drive capacity three times per day throughout its rated service life. In typical server or system-disk use, this level of endurance provides substantial headroom for many years of stable operation without concern about normal write wear. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is unexpectedly interrupted. Its UBER of 1.0E-17, together with a 2 million-hour MTBF, indicates a very low likelihood of unrecoverable read errors and supports dependable operation in business-critical environments.

Technical Specs & Insights

1. The SATA 6Gb/s interface, paired with 560 MB/s sequential read performance, enables a cost-efficient upgrade path for legacy enterprise platforms while keeping large file access and backup jobs consistently responsive.
2. With 97,000 random read IOPS, this SSD sustains fast access to small-block data, helping virtualized workloads and read-heavy databases serve more users with less queuing delay.
3. Rated at 3 DWPD, it is built for write-intensive enterprise use, giving IT teams the endurance headroom needed for logging, caching, and mixed-transaction workloads over the drive’s service life.
4. Samsung V-NAND 6th-Gen TLC combines mature high-density flash with enterprise-focused reliability, supporting better power efficiency, consistent performance, and lower total cost per terabyte in scale-out deployments.
5. A typical latency of 40 µs helps reduce storage response time at the microsecond level, which is critical for transaction-sensitive applications that depend on predictable QoS and faster application turnaround.

Capacity Sweet

Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB Capacity positioning analysis: In this series, the 1.92 TB model sits at the sweet spot. Compared with the 960 GB version, it offers much better headroom for OS images, application stacks, logs, and growth, reducing the risk of early capacity pressure. Compared with the 3.84 TB option, it usually delivers the best balance of acquisition cost, usable space, and standard enterprise performance, since sequential throughput and random IOPS are broadly similar across capacities. It is especially well suited for medium-scale virtualization clusters, such as hosting boot and application volumes for about 40 to 60 business VMs.

FAQ