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| Brand | Samsung |
|---|---|
| Model | PM871 |
| Capacity | 256GB |
| Usage Class | Client |
| Host Interface | SATA |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | TLC |
|---|---|
| Drive Writes Per Day | 0.16 |
| Total Bytes Written | 75 TBW |
| Sequential Read | 540 MB/s |
|---|---|
| Sequential Write | 280 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 74000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-7TE2560 |
|---|
The Samsung PM871 256GB (MZ-7LN2560) is a strong OEM SATA upgrade for boot and application drives, combining near-interface-limit 540 MB/s reads with 97,000/74,000 IOPS random performance and 75 TBW endurance in a cost-efficient TLC design. Compared with the previous-generation MZ-7TE2560, it delivers a newer SATA platform with a more balanced mix of client-read throughput, random-write responsiveness, and endurance, making it the better fit for mainstream notebook and desktop refresh cycles.
With an endurance rating of 75 TBW, the MZ-7LN2560 is well suited for typical OS, office, and general business workloads, where daily writes are usually modest. In practical terms, 75 TBW is roughly equivalent to about 20 GB of writes per day for 10 years, making it a dependable choice as a boot or system drive without endurance concerns in normal use. From a reliability perspective, the drive’s UBER of 1.0E-15 indicates a very low rate of unrecoverable read errors, while the 1.5 million hour MTBF supports stable long-term operation in mainstream commercial deployments. This model does not include power-loss protection, so it is best used in systems with normal shutdown control or UPS support rather than write-critical applications that require guaranteed in-flight data protection during sudden power interruption.
1. The SATA interface makes this drive easy to deploy in legacy enterprise servers and storage arrays, enabling low-risk upgrades without changing the existing backplane or controller ecosystem.
2. With up to 540 MB/s sequential read performance, it accelerates boot volumes, VM image access, and large-file retrieval in read-focused business workloads.
3. Delivering 97,000K random read IOPS, it supports high-concurrency OLTP, VDI, and metadata-heavy applications with faster response under parallel access.
4. Rated at 0.16 DWPD, it is best suited for read-centric enterprise deployments where predictable endurance and lower acquisition cost matter more than intensive daily overwrite activity.
5. A typical latency of 50 µs helps reduce storage wait time, improving application responsiveness for transactional systems and latency-sensitive virtualized environments.
Reference capacities in the same series: Lower capacity: 128GB Higher capacity: 512GB Capacity positioning analysis: The 256GB version sits at the sweet spot of this series. Compared with the 128GB model, it gives much better space headroom for OS images, logs, patches, and application growth, reducing early capacity pressure in always-on environments. Compared with the 512GB model, it keeps acquisition cost and fleet-level budget under tighter control while delivering essentially the same class of sequential throughput and random IOPS expected from enterprise SATA SSDs. It is best suited for small to mid-size virtualization clusters, such as hosting boot and utility volumes for about 40 to 60 light-duty virtual machines.
Q: Is MZ-7LN2560 suitable for a write-heavy database server?
A: No. With TLC NAND, 0.16 DWPD, and 75 TBW, the MZ-7LN2560 is better suited for light-duty or read-focused workloads, not write-heavy database server environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 0.16 drive writes per day, meaning about 16% of the 256GB capacity can be written daily on average throughout the warranty period.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include PLP. This matters because PLP helps protect in-flight data and metadata during sudden power loss, which is especially important in enterprise or transactional systems.
Q: What RAID level is recommended for this SSD?
A: For general deployment, RAID 1 or RAID 10 is recommended for better redundancy and performance balance. RAID 5 is less ideal for write-intensive use due to parity overhead.