Samsung MZ7KM960HMJP 960 GB SM863a SATA 6.0 Gbps 2.5" Write Intensive Solid State Drive

General

Brand	Samsung
Model	SM863a
Capacity	960 GB
Usage Class	Write Intensive

Interface

Host Interface	SATA 6.0 Gbps
Total Interface Bandwidth	6 Gb/s

Physical Dimension

Form Factor	2.5"

Flash & Endurance

NAND Flash	Samsung V-NAND 2-bit MLC
Drive Writes Per Day	3.6
Total Bytes Written	6160 TBW

Performance

Sequential Read	510 MB/s
Sequential Write	485 MB/s
Random Read IOPS	95000
Random Write IOPS	28000
Average Latency	95 μs

Reliability

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

Part Number

MPN	MZ7GE960HMHP-00003

Engineer's Note

Compared with the previous-generation MZ7GE960HMHP-00003, the MZ7KM960HMJP (SM863a) advances to Samsung V-NAND 2-bit MLC with 6,160 TBW and 3.6 DWPD, delivering higher endurance and stronger sustained enterprise duty capability in the same 960 GB SATA 6.0 Gbps form factor. With up to 510/485 MB/s sequential performance and 95,000/28,000 IOPS random read/write, it is a stronger fit than its predecessor for write-intensive virtualization, database logging, and mixed-read/write server workloads that need consistent SATA-class latency and long service life.

Endurance & Reliability

With an endurance rating of 6,160 TBW and 3.6 DWPD, the MZ7KM960HMJP is built to sustain heavy write-intensive enterprise workloads over its service life. In practical terms, this level of endurance is far beyond typical OS, application, and mixed server boot-drive usage, giving buyers confidence that it can operate for many years under normal deployment conditions without endurance becoming a concern. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low probability of unrecoverable read errors and strong long-term operational reliability, which is especially important for data center and business-critical environments.

Technical Specs & Insights

1. The SATA interface provides broad drop-in compatibility with mainstream enterprise servers and storage arrays, while its near bus-limited sequential read speed helps accelerate boot, backup, and large-file retrieval workloads without requiring a PCIe platform upgrade.
2. Its strong random read capability supports dense virtual machines, OLTP databases, and metadata-heavy applications by sustaining fast access to small blocks under concurrency.
3. The high endurance rating makes it well suited for write-intensive enterprise use cases such as logging, caching, and mixed-workload transactional systems, helping extend service life and reduce replacement cycles.
4. Samsung V-NAND based on 2-bit MLC flash offers a balanced mix of durability, steady performance, and data integrity that enterprises value for always-on production environments.
5. The low typical latency helps reduce tail-response times in business-critical applications, improving user experience and transaction consistency in latency-sensitive infrastructure.

Capacity Sweet

Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB Capacity positioning analysis: In this series, the 960 GB model sits at the practical sweet spot. Compared with the 480 GB version, it gives much more headroom for OS images, application binaries, logs, and data growth, reducing early capacity pressure in always-on enterprise environments. Compared with the 1.92 TB model, it usually delivers a better balance between acquisition cost, usable capacity, and standard enterprise performance consistency. It is especially well suited for mid-scale deployments, such as shared boot and application storage for about 40 to 60 virtualization hosts or departmental service clusters.

FAQ