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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 1.92 TB |
| Usage Class | Read Intensive |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 3D TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 2800 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 18000 |
| Average Latency | 95 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KH1T9HAJR-00AH3 |
|---|
Compared with MZ7KH1T9HAJR-00AH3, the Samsung PM863 (MZ-7LM1T90) delivers a clear generational upgrade with Samsung V-NAND 3D TLC, combining 1.92 TB capacity with 2,800 TBW and 1.3 DWPD for stronger sustained write endurance in SATA enterprise deployments. It is an excellent fit for read-centric to mixed-use virtualization, web, and scale-out storage nodes that need near-SATA-limit throughput at 520/475 MB/s and up to 99,000/18,000 IOPS, giving it a more balanced performance-per-watt-and-capacity profile than the prior generation.
With an endurance rating of 2800 TBW and 1.3 DWPD, the MZ-7LM1T90 is designed to handle sustained write activity well beyond typical client or light server workloads. In practical terms, for common OS, application, and mixed business data usage, this level of endurance supports long-term deployment and can serve reliably as a system drive for many years under normal operating conditions. The drive also includes enterprise-grade reliability features such as power loss protection (PLP), which helps preserve in-flight data and metadata if power is unexpectedly interrupted. Its UBER specification of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity expectations in business and data center environments.
1. The SATA interface enables straightforward drop-in deployment across mainstream enterprise backplanes, while its near bus-saturating sequential read speed helps accelerate boot storms, log scans, and large-file retrieval in legacy-friendly server environments.
2. Its strong random read capability supports highly concurrent VM, database, and metadata-heavy workloads by reducing storage bottlenecks during bursty access patterns.
3. The endurance profile is well suited for mixed-use enterprise applications, allowing sustained daily rewrites with predictable lifespan in always-on production systems.
4. Samsung V-NAND 3D TLC balances capacity, power efficiency, and cost, making it a practical choice for scaling read-centric infrastructure without sacrificing enterprise reliability.
5. The low typical latency improves application responsiveness and helps deliver more consistent QoS for transactional workloads, virtualized environments, and latency-sensitive business services.
Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB In this enterprise SSD family, 1.92 TB sits at the sweet spot for mainstream deployments. Compared with 960 GB, it gives much better headroom for OS images, application growth, logs, and overprovisioning, reducing the risk of early capacity pressure. Compared with 3.84 TB, it typically preserves nearly the same enterprise-class sequential throughput and random IOPS while offering a more attractive cost per deployment node. This makes 1.92 TB a balanced choice for mid-scale virtualization clusters, such as hosting boot and application volumes for about 40 to 60 virtual machines.
Q: Is MZ-7LM1T90 suitable for a write-heavy database server?
A: Yes. With 1.3 DWPD, 2800 TBW endurance, Samsung V-NAND 3D TLC, and 95 µs typical latency, the MZ-7LM1T90 is suitable for write-intensive database and transactional server workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1.3 full drive writes per day. For a 1.92 TB SSD, that equals about 2.5 TB of writes daily across its supported warranty period.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and metadata during sudden outages, reducing corruption risk and improving reliability for enterprise, database, and RAID environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD when performance and redundancy are both important. RAID 1 suits smaller deployments, while RAID 5/6 fits capacity-focused environments with tradeoffs.