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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-00005 |
|---|
Compared with the earlier MZ7LM3T8HCJM-00005 revision, MZ7LM3T8HCJM offers a later PM863 build for a lower-risk drop-in refresh while preserving enterprise-grade endurance at 1.3 DWPD / 5,600 TBW and consistent SATA performance up to 520/475 MB/s. Its key advantage in the SATA class is pairing high 3.84 TB density with Samsung 32-layer V-NAND TLC and 99,000/18,000 IOPS, making it a stronger fit than typical read-centric SATA SSDs for virtualization, content delivery, and scale-out storage nodes that still need meaningful write endurance.
With an endurance rating of 5,600 TBW and 1.3 DWPD, this SSD is built to handle very heavy write activity, equivalent to writing roughly 1.5 TB of data every day for 10 years from an endurance perspective. In typical enterprise system-boot, application, and mixed business workloads, this provides ample headroom for long-term, worry-free operation rather than being a wear-limited component. For enterprise reliability, integrated Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted, reducing the risk of corruption and unclean shutdown issues. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate an enterprise-class design focused on extremely low uncorrectable read error rates and strong long-term operational stability.
1. The SATA interface, paired with near-bus-limit sequential throughput, makes this drive a drop-in upgrade for legacy enterprise servers and storage arrays where predictable streaming performance matters more than a platform refresh.
2. Its strong random-read capability helps VDI, OLTP, and metadata-heavy workloads serve far more small-block requests concurrently, reducing queue buildup during peak demand.
3. The endurance profile is well suited to read-centric enterprise deployments with steady daily writes, supporting multi-year operation without overpaying for write-intensive flash.
4. Samsung’s 3D TLC V-NAND balances density, power efficiency, and reliability, giving data centers better cost per terabyte while maintaining enterprise-grade flash behavior.
5. The low typical latency improves application responsiveness and storage QoS consistency, which is especially valuable for virtualization clusters and latency-sensitive databases.
Lower-capacity reference: 1.92 TB Higher-capacity reference: 7.68 TB In this enterprise SSD family, 3.84 TB is the sweet-spot capacity. Compared with the 1.92 TB model, it gives much better headroom for data growth, denser VM placement, and longer refresh cycles without changing the familiar enterprise-class sequential and random I/O profile. Compared with 7.68 TB, it usually delivers the best balance of usable capacity, acquisition cost, and fleet-wide deployment efficiency, while avoiding overprovisioning. It is especially well suited for mid-scale virtualization clusters, mixed OLTP workloads, or a 2U server hosting about 40 to 60 general-purpose virtual machines.
Q: Is MZ7LM3T8HCJM suitable for a write-heavy database server?
A: Yes, it is suitable for many write-intensive database workloads. With 1.3 DWPD, 5600 TBW, low 120 µs latency, and enterprise Samsung V-NAND, it offers solid endurance and consistent performance.
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 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 unexpected outages, reducing corruption risk and improving reliability for enterprise databases and transactional applications.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for database and write-heavy environments because it balances performance, redundancy, and rebuild efficiency. For capacity-focused use cases, RAID 5 or RAID 6 may also be considered.