Samsung MZ7LM1T9HCJM 1.92 TB PM863 SATA 6.0 Gbps 2.5" Read Intensive Solid State Drive

General

Brand	Samsung
Model	PM863
Capacity	1.92 TB
Usage Class	Read 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 3-bit TLC
Drive Writes Per Day	1.3
Total Bytes Written	2800 TBW

Performance

Sequential Read	525 MB/s
Sequential Write	485 MB/s
Random Read IOPS	99000
Random Write IOPS	18000
Average Latency	120 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-76E500

Engineer's Note

Compared with the MZ-76E500, the PM863 MZ7LM1T9HCJM is a clear generational upgrade from client SATA storage to enterprise-read-optimized SSD, expanding capacity to 1.92 TB while raising endurance to 1.3 DWPD and 2,800 TBW for 24x7 datacenter operation. With Samsung V-NAND 3-bit TLC, 525/485 MB/s sequential performance, and up to 99,000/18,000 IOPS, it is particularly well suited for read-centric virtualization, web serving, and scale-out storage nodes that need better workload consistency and longer service life than desktop-class predecessors.

Endurance & Reliability

With an endurance rating of 2800 TBW and 1.3 DWPD, the MZ7LM1T9HCJM is built to handle sustained enterprise write workloads over its service life, far beyond the needs of typical OS, boot, and general application drive usage. In practical terms, under common system-disk or mixed read/write workloads, this level of endurance provides comfortable long-term headroom and can support many years of stable operation with low wear concern. For enterprise reliability, the drive includes Power Loss Protection, which helps preserve in-flight data and protects metadata integrity if power is unexpectedly interrupted. Its UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low rate of unrecoverable bit errors and a design focused on dependable data integrity in business-critical environments.

Technical Specs & Insights

1. The SATA interface, paired with near bus-limit sequential read performance, makes this drive an easy drop-in upgrade for legacy enterprise platforms that need faster boot, restore, and bulk data access without changing server backplanes.
2. Its strong random read capability helps VDI, OLTP, and virtualization environments sustain responsive access under highly fragmented, multi-user workloads.
3. This endurance profile supports steady daily overwrite activity, giving enterprises a practical balance between write tolerance and acquisition cost for mixed-use deployments.
4. Samsung V-NAND TLC enables higher flash density and better power-and-space efficiency, which is valuable for scaling capacity across dense data center footprints.
5. The low typical latency improves consistency for latency-sensitive applications, reducing storage wait time in databases, metadata-heavy operations, and real-time service chains.

Capacity Sweet

Reference capacities in the same series: Lower capacity: 960 GB Current model: 1.92 TB Higher capacity: 3.84 TB Capacity positioning analysis: At 1.92 TB, this SSD sits in the sweet spot of the family. Compared with the 960 GB version, it gives much better headroom for OS images, application growth, logs, and overprovisioning without forcing early capacity expansion. Compared with the 3.84 TB model, it usually delivers a more attractive balance of acquisition cost, usable capacity, and enterprise-grade performance consistency, since sequential throughput and random IOPS are broadly similar across the range. It is especially well suited for mid-scale virtualization clusters, such as shared boot and application storage for about 40 to 60 virtual machines.

FAQ