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| Brand | Samsung |
|---|---|
| Model | 860 EVO |
| Capacity | 1TB |
| Usage Class | Client |
| Host Interface | SATA |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | TLC V-NAND |
|---|---|
| Drive Writes Per Day | 0.33 |
| Total Bytes Written | 600 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 90000 |
| 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-75E1T0 |
|---|
The MZ7LH1T0HMLU (860 EVO 1TB) is a strong SATA upgrade for performance-sensitive client and mixed read/write workstation deployments, combining near-interface-limit 550/520 MB/s throughput with 98,000/90,000 IOPS and 600 TBW endurance on TLC V-NAND. Compared with the previous-generation MZ-75E1T0, it delivers substantially higher write endurance—doubling TBW to 600 TB—while maintaining top-tier SATA performance, making it the better long-life choice for heavier daily write workloads.
With an endurance rating of 600 TBW and 0.33 DWPD, the MZ7LH1T0HMLU is well suited to read-intensive and light-to-moderate mixed workloads, such as OS boot, application, and general server storage. In practical terms, a 1 TB drive at this rating can support about 164 GB of host writes per day for 5 years, so in typical system-disk use it can comfortably deliver many years of service, often extending toward a decade under lighter write patterns. From a reliability standpoint, the specified UBER of 1.0E-15 and MTBF of 1.5 million hours reflect enterprise-class data integrity and long operating life expectations in normal deployment conditions. This model does not include power-loss protection, so while it is a strong choice for stable-power environments and non-cache-critical roles, applications that require guaranteed in-flight write protection during unexpected outages should use system-level safeguards such as RAID, journaling, or UPS support.
1. The SATA interface enables drop-in deployment across widely installed enterprise server and storage platforms, making refresh projects simpler and more cost-efficient without changing existing backplanes.
2. Its top-end sequential read performance helps accelerate boot storms, backup restores, and large file retrieval in read-focused data center workloads.
3. Strong random read capability supports high-transaction environments such as virtualization, metadata access, and OLTP databases by reducing queue buildup under concurrent user demand.
4. The moderate write endurance profile is well suited to read-centric enterprise use cases like content delivery, analytics serving, and reference data repositories where capacity efficiency matters more than heavy daily overwrites.
5. TLC V-NAND paired with very low typical latency delivers a balanced mix of density, power efficiency, and consistently fast response times for latency-sensitive business applications.
Lower capacity reference: 960GB Higher capacity reference: 1.92TB Capacity positioning analysis: In the MZ7LH series, the 1TB model sits in the sweet spot for mainstream enterprise deployment. Compared with the 960GB option, it offers a bit more headroom for OS growth, logs, application binaries, and overprovisioning comfort, which helps reduce day-to-day capacity pressure. Compared with the 1.92TB model, it delivers nearly the same enterprise-class read/write behavior and random IOPS while keeping acquisition cost and power budget more controlled. It is especially well suited for mid-scale virtualization clusters, such as boot and utility storage for around 60 to 80 virtual machines.
Q: Is MZ7LH1T0HMLU suitable for a write-heavy database server?
A: MZ7LH1T0HMLU is better suited for read-intensive or mixed workloads. With 0.33 DWPD and 600 TBW, it is generally not the best choice for highly write-heavy database servers.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated for 0.33 drive writes per day, meaning about one-third of its 1TB 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, this model does not include power loss protection. PLP is critical in enterprise environments because it helps prevent in-flight data loss and metadata corruption during sudden power failure.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is typically recommended for this SSD, depending on capacity and performance needs. These levels provide redundancy and better data protection for business-critical applications.