Samsung MZ-7LM960A 960GB PM863 Series SATA 6Gb/s 2.5 7mm Enterprise Data Center / Mixed Use Solid State Drive

General

Brand	Samsung
Model	PM863 Series
Capacity	960GB
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 32-layer 3D V-NAND TLC
Drive Writes Per Day	1.3
Total Bytes Written	1400 TBW

Performance

Sequential Read	520 MB/s
Sequential Write	475 MB/s
Random Read IOPS	99000
Random Write IOPS	18000
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-7TE960

Engineer's Note

Compared with the previous-generation MZ-7TE960, the Samsung PM863 Series MZ-7LM960A brings a clear generational upgrade with 32-layer 3D V-NAND TLC, enterprise endurance rated at 1.3 DWPD and 1400 TBW, and stronger power efficiency for always-on SATA deployments. At 960GB, it pairs 520/475 MB/s sequential performance with up to 99,000/18,000 IOPS, making it a particularly strong fit for read-intensive virtualization, web hosting, and scale-out server boot or caching tiers that need higher endurance than typical client-class SATA SSDs.

Endurance & Reliability

With an endurance rating of 1,400 TBW and 1.3 DWPD, the MZ-7LM960A is designed to handle sustained write activity well beyond typical client or general server boot-drive usage. In practical terms, under normal OS, application, logging, and routine business workloads, it can serve reliably as a system drive for many years, making it a low-risk choice for long-term deployment. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving operational stability. Its UBER rating of 1.0E-17, together with a 2 million-hour MTBF, indicates a very low probability of unrecoverable bit errors and strong overall dependability for business-critical environments.

Technical Specs & Insights

1. The SATA 6Gb/s interface paired with 520 MB/s sequential read performance lets this drive fully exploit existing enterprise SATA backplanes, accelerating OS boot, image pulls, and large-file streaming without requiring a platform upgrade.
2. With 99,000 random-read IOPS, it can sustain highly concurrent access patterns in virtualized databases and read-heavy application clusters, helping reduce queue buildup during peak transaction periods.
3. A 1.3 DWPD endurance rating gives data centers the write headroom needed for mixed-use enterprise workloads, supporting predictable service life under continuous daily overwrite cycles.
4. Samsung 32-layer 3D V-NAND TLC delivers a strong balance of density, cost efficiency, and power-conscious reliability, making it well suited for scaling enterprise flash capacity across mainstream server fleets.
5. The 120 µs typical latency helps keep application response times consistently tight, which is especially valuable for OLTP, VDI, and other latency-sensitive business workloads.

Capacity Sweet

Lower capacity reference: 480GB Higher capacity reference: 1.92TB In this series, the 960GB model sits at the sweet spot. Compared with the 480GB version, it gives much better headroom for OS growth, application updates, logs, and mixed business data, reducing the risk of early capacity pressure. Compared with the 1.92TB model, it keeps acquisition cost lower while delivering essentially the same enterprise-class sequential read/write and random IOPS behavior. That makes 960GB the best balance of usable capacity, predictable performance, and budget efficiency for medium-scale deployments such as a 6 to 10 node virtualization cluster or a compact database tier.

FAQ