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| Brand | Samsung |
|---|---|
| Model | 860 PRO |
| Capacity | 2 TB |
| Usage Class | Client / Enterprise Mixed |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 2bit MLC |
|---|---|
| Drive Writes Per Day | 0.66 |
| Total Bytes Written | 2400 TBW |
| Sequential Read | 560 MB/s |
|---|---|
| Sequential Write | 530 MB/s |
| Random Read IOPS | 100000 |
| Random Write IOPS | 90000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ7LM1T9HMJP-00005 |
|---|
The Samsung 860 PRO 2 TB (MZ7KH2T0HAJR) stands out in the SATA 6Gb/s class by combining near-interface-limit performance of 560/530 MB/s and 100,000/90,000 IOPS with Samsung V-NAND 2-bit MLC, delivering 2400 TBW and 0.66 DWPD for write-intensive, latency-sensitive enterprise workloads. Compared with MZ7LM1T9HMJP-00005, it offers a clear generational upgrade in endurance-focused design and random-write capability, making it the stronger choice for high-duty-cycle boot, cache, and read/write mixed server deployments where SATA reliability and consistency still matter.
With an endurance rating of 2400 TBW and 0.66 DWPD, the MZ7KH2T0HAJR is designed to handle substantial write activity over its service life, which is more than sufficient for typical boot-drive, application, and general server workloads. In practical terms, under normal enterprise system-disk usage, this level of endurance can support many years of reliable operation without endurance-related concern. From a reliability perspective, the drive is specified at 1.5 million hours MTBF and an UBER of 1.0E-15, meaning the expected uncorrectable bit error rate is tightly controlled and aligned with enterprise storage expectations for dependable data handling. This model does not include power-loss protection (PLP), so it is best deployed in systems with stable power, UPS coverage, or application-level data protection, while still offering solid reliability for read-focused or mixed workloads where sudden power interruption risk is well managed.
1. The SATA interface enables straightforward drop-in deployment across mainstream enterprise servers and storage arrays, making it a practical upgrade path for boot volumes, legacy platforms, and cost-sensitive data center refreshes.
2. Its sequential read performance helps accelerate large-file access, reducing wait time for database snapshots, VM image loading, and analytics dataset retrieval.
3. The strong random read capability supports highly responsive access to small data blocks, which is especially valuable for virtualized environments, OLTP databases, and read-heavy application tiers.
4. This endurance profile is well suited to mixed-use enterprise workloads, giving IT teams dependable daily rewrite headroom for business applications without overpaying for unnecessary write tolerance.
5. Samsung V-NAND 2-bit MLC and low typical latency combine to deliver predictable response times and long-term reliability, which is critical for transactional systems and latency-sensitive enterprise operations.
Lower-capacity reference: 960 GB Higher-capacity reference: 3.84 TB In this enterprise SSD family, the 2 TB model sits at the practical sweet spot. Compared with the 960 GB version, it gives materially better capacity headroom for OS images, logs, hot data, and moderate growth, reducing the need for early drive expansion. Compared with the 3.84 TB option, it usually delivers a better cost-to-usable-capacity balance while keeping broadly similar sequential throughput and random IOPS for mainstream enterprise workloads. It is especially well suited for mid-sized virtualization clusters, such as hosting boot and application volumes for about 40 to 60 business VMs.
Q: Is MZ7KH2T0HAJR suitable for a write-heavy database server?
A: It can support moderate enterprise database workloads, but it is not ideal for highly write-intensive servers. Its 0.66 DWPD rating is better suited to mixed-read/write rather than sustained heavy-write environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 0.66 DWPD, meaning it can sustain about 0.66 full drive writes per day during its warranty period. With 2TB capacity, that equals roughly 1.32TB writes daily.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, this SSD does not include power loss protection. PLP is critical in enterprise systems 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 most business deployments, RAID 1 or RAID 10 is recommended to balance redundancy and performance. RAID 5 may be used cautiously, but write penalty and rebuild risk should be considered.