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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 3.84 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 32-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 5600 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 18000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7LM3T8HCJM-00003 |
|---|
Samsung’s PM863 3.84TB (MZ7LM3T8HCJM-00005) is a strong fit for read-centric enterprise SATA tiers that need high usable capacity, predictable 520/475 MB/s throughput, and long service life from a 1.3 DWPD / 5,600 TBW endurance profile built on 32-layer V-NAND 3D TLC. Compared with the earlier MZ7LM3T8HCJM-00003 revision, the -00005 offers a later-generation qualified part for lower deployment risk and longer lifecycle support, while preserving the PM863’s key advantage over typical same-class SATA SSDs: near-SAS-class read IOPS at a lower cost and power envelope.
With an endurance rating of 5,600 TBW and 1.3 DWPD, the MZ7LM3T8HCJM-00005 is built to handle sustained daily write activity far beyond typical OS, application, and general server boot-drive workloads. In practical terms, for use as a system disk or read-intensive enterprise drive, this level of endurance supports many years of reliable operation under normal deployment conditions, giving buyers strong confidence in long-term wear life. For enterprise reliability, the drive includes power-loss protection, which helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and unclean shutdown issues. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low unrecoverable bit error rate and strong overall reliability, making it well suited for business-critical storage environments.
1. The SATA 6.0 Gbps interface, paired with near-bus-limit sequential throughput, enables a drop-in upgrade for legacy enterprise servers while accelerating backup, boot, and bulk data streaming workloads.
2. Its strong random read capability keeps virtualized databases, metadata-heavy applications, and read-intensive cloud services highly responsive under heavy concurrent access.
3. With an endurance profile suited for sustained daily rewrites, the drive supports mixed enterprise workloads with predictable lifespan and lower replacement risk in always-on environments.
4. Samsung V-NAND 32-layer 3D TLC balances cost, capacity, and reliability, making it well suited for scale-out data centers that need efficient storage density without sacrificing enterprise stability.
5. The low typical latency helps reduce tail-response times, improving transaction consistency and application QoS for latency-sensitive server workloads.
Reference capacities in the same MZ7LM series for MZ7LM3T8HCJM-00005 (3.84 TB): Lower capacity: 1.92 TB Higher capacity: None in the exact MZ7LM line; 3.84 TB is generally the top standard capacity point for this series Capacity positioning analysis: At 3.84 TB, this model sits at the sweet spot of the MZ7LM family. Compared with the 1.92 TB version, it gives much better capacity headroom for growth, denser consolidation, and longer refresh intervals without changing the familiar enterprise SATA performance profile. Because this exact series typically does not offer a larger standard step above 3.84 TB, it also represents the best balance of usable capacity, predictable latency, and acquisition cost. It is well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for about 40 to 60 mixed-workload virtual machines.
Q: Is MZ7LM3T8HCJM-00005 suitable for a write-heavy database server?
A: Yes. With 1.3 DWPD, 5600 TBW endurance, low 120 microsecond typical latency, and enterprise Samsung V-NAND TLC, it is suitable for moderately write-heavy database workloads and consistent server operation.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1.3 drive writes per day. For a 3.84 TB SSD, that equals about 4.99 TB of writes daily across the 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 unexpected outages, reducing corruption risk and improving reliability for enterprise storage and transactional applications.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for databases needing strong performance and redundancy. RAID 1 is also suitable for smaller deployments, while RAID 5 or 6 may prioritize capacity over write speed.