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| Brand | Samsung |
|---|---|
| Model | PM863a |
| 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 3-bit TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 2741 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 480 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 24000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-7LM1T9N |
|---|
Compared with the previous-generation MZ-7LM1T9N, the PM863a (MZ7LM1T9HMJP0D3) is a generational refresh built on Samsung V-NAND 3-bit TLC, delivering 1.3 DWPD, 2741 TBW, and up to 97,000/24,000 IOPS within the same SATA 6.0 Gbps deployment model. Its unique value is combining near-interface-limit 520/480 MB/s throughput with enterprise-class endurance at 1.92 TB, making it a strong choice for read-intensive virtualization, web-tier, and scale-out server fleets that need a better balance of capacity, consistency, and lifecycle cost than typical SATA TLC SSDs.
With an endurance rating of 2,741 TBW and 1.3 DWPD, the MZ7LM1T9HMJP0D3 is built to handle sustained daily writes over a long service life in typical enterprise use. In practical terms, this level of endurance is more than sufficient for common server boot, read-intensive application, and mixed workload scenarios, giving buyers confidence in stable long-term operation. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and maintain metadata integrity if power is unexpectedly interrupted. Its UBER specification of 1.0E-17 indicates an extremely low rate of unrecoverable bit errors, supporting high data integrity and dependable performance in business-critical environments.
1. The SATA 6.0 Gbps interface, paired with 520 MB/s sequential read speed, provides a drop-in upgrade path for legacy enterprise platforms while accelerating large-file access such as OS images, logs, and backup datasets.
2. With up to 97,000 random read IOPS, the drive helps databases, virtual desktop pools, and metadata-heavy applications respond faster under highly concurrent workloads.
3. Rated for 1.3 DWPD, it is built to sustain steady daily rewrites in mixed-use enterprise environments, making it suitable for always-on business systems with predictable endurance needs.
4. Samsung V-NAND 3-bit TLC balances capacity, power efficiency, and cost, enabling higher storage density for scale-out infrastructure without sacrificing enterprise deployment practicality.
5. Its 100 µs typical latency supports consistently responsive transaction handling, helping reduce storage-induced delays in latency-sensitive servers and virtualized workloads.
Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB Capacity positioning analysis: In the PM863a family, the 1.92 TB model sits at the sweet spot. Compared with the 960 GB version, it gives much more headroom for OS images, logs, and application growth, reducing the risk of early capacity pressure. Compared with the 3.84 TB option, it keeps acquisition cost and replacement economics more controlled while delivering essentially the same enterprise SATA performance profile. This makes 1.92 TB the best-balanced choice for mid-scale virtualization or database nodes, such as a 12 to 16-server branch cluster with mixed business workloads.
Q: Is MZ7LM1T9HMJP0D3 suitable for a write-heavy database server?
A: Yes. With 1.3 DWPD, 2741 TBW, low 100 µs typical latency, and Samsung V-NAND TLC, this SSD is suitable for mixed to moderately write-heavy database workloads in enterprise environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 1.3 full drive writes per day. For a 1.92 TB model, that equals about 2.5 TB of writes daily across the defined 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 unexpected outages, reducing corruption risk and improving data integrity for enterprise storage applications.
Q: What RAID level is recommended for this SSD?
A: For most server deployments, RAID 10 is recommended for the best balance of performance, redundancy, and write efficiency. RAID 1 or RAID 5 may also fit, depending on capacity and budget.