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| Brand | Samsung |
|---|---|
| Model | 860 EVO |
| Capacity | 250 GB |
| Usage Class | Client |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3bit TLC |
|---|---|
| Drive Writes Per Day | 0.3 |
| Total Bytes Written | 150 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 90000 |
| Average Latency | 90 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-75E250 |
|---|
The Samsung 860 EVO 250GB (MZ-76E250) is a strong upgrade over the previous-generation MZ-75E250, doubling endurance from 75 TBW to 150 TBW while also improving peak sequential read performance to 550 MB/s and random performance to 98,000/90,000 IOPS. For client boot drives, mainstream workstation refreshes, and SATA-constrained upgrade projects, it delivers a better balance of service life, responsiveness, and sustained efficiency than its predecessor in the same 250GB class.
With an endurance rating of 150 TBW, the MZ-76E250 is well suited for typical client and light business workloads, such as OS boot, office applications, and general file storage. In practical terms, 150 TBW is equivalent to writing about 41 GB per day for 10 years, so it can comfortably serve as a long-term system drive under normal usage conditions. From a reliability perspective, the specified UBER of 1.0E-15 indicates a very low rate of unrecoverable read errors, helping ensure dependable data integrity during normal operation. This model does not include power-loss protection, so while it is appropriate for standard desktop or non-critical use, applications that require protection for in-flight data during sudden power outages should rely on system-level safeguards such as a UPS or controlled shutdown design.
1. The SATA interface ensures broad compatibility with mainstream enterprise servers and storage arrays, making this drive a practical drop-in upgrade for legacy infrastructure without platform changes.
2. Its strong sequential read capability speeds up large-file access, helping analytics jobs, system imaging, and content distribution complete faster with less storage bottleneck.
3. The high random read performance is well suited for virtualized environments and read-heavy databases, improving responsiveness when many small requests arrive at once.
4. This endurance profile fits read-centric enterprise workloads such as boot volumes, application delivery, and reference data, where predictable reliability matters more than intensive daily rewrites.
5. Samsung V-NAND 3bit TLC combines solid flash density with mature performance behavior, while the low typical latency helps reduce application wait time and keeps user-facing services more responsive.
Lower reference capacity: No smaller standard 2.5-inch capacity in the Samsung 860 EVO series; 250 GB is the entry point Higher reference capacity: 500 GB The 250 GB model sits at the sweet spot of the 860 EVO family because it is the smallest mainstream capacity, yet it already gives much better headroom for OS, logs, patching, and application growth than a minimal boot-drive deployment would allow. Compared with the 500 GB version, it preserves essentially the same everyday sequential and random performance profile while keeping acquisition cost tighter and capacity utilization more efficient. It is best suited for small virtualization clusters, edge servers, or around 20 to 30 lightweight VM system disks.
Q: Is MZ-76E250 suitable for a write-heavy database server?
A: No. The MZ-76E250 is better suited for client or light mixed workloads. With 0.3 DWPD, 150 TBW, TLC NAND, and no PLP, it is not ideal for write-heavy database servers.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 0.3 DWPD, meaning about 30% of the 250 GB capacity can be written daily over the warranty period. That equals roughly 75 GB of writes per day.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include power loss protection. PLP is critical in server environments because it helps prevent in-flight data loss and metadata corruption during sudden power interruptions.
Q: What RAID level is recommended for this SSD?
A: For business use, RAID 1 or RAID 10 is generally recommended for redundancy and stable performance. Avoid relying on a single drive, especially since this model lacks PLP and enterprise endurance.