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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 3.84 TB |
| Usage Class | Read Intensive |
| Host Interface | SATA 6Gb/s |
|---|---|
| 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 | 5600 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 18000 |
| Average Latency | 40 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-7GE3T8 |
|---|
Compared with MZ-7GE3T8, the Samsung PM863 MZ-7LM3T8B advances to Samsung V-NAND 3D TLC and delivers a higher-density 3.84TB SATA SSD with 5,600TB TBW endurance, while sustaining up to 520/475 MB/s and 99K/18K IOPS for mixed enterprise workloads. Its standout value is giving read-centric and mixed-use server tiers a rare combination of large-capacity SATA deployment, 1.3 DWPD durability, and Samsung enterprise reliability in a drop-in 6Gb/s form factor, making it a stronger long-life replacement for legacy SATA SSD generations.
With an endurance rating of 5,600 TBW and 1.3 DWPD, the MZ-7LM3T8B is designed to handle very heavy write activity, equivalent to rewriting the full drive more than once per day within its rated usage profile. In typical deployment as a system disk, boot drive, or read-intensive enterprise SSD, this provides ample endurance headroom for long-term operation without endurance becoming a practical concern. Its built-in power loss protection (PLP) helps safeguard in-flight data and critical metadata during an unexpected power interruption, reducing the risk of corruption and improving operational stability. The UBER specification of 1.0E-17 indicates an extremely low rate of uncorrectable bit errors, which supports enterprise-class data integrity and gives buyers greater confidence in dependable storage performance.
1. The SATA interface enables seamless deployment in mainstream enterprise servers and storage arrays, making it a practical drop-in upgrade where compatibility and operational simplicity matter.
2. Its near-saturation sequential read performance speeds up boot storms, large file access, and backup restores in read-heavy data center environments.
3. Strong random read capability helps VDI, OLTP, and metadata-intensive workloads maintain responsive service even under heavy concurrent access.
4. Enterprise-grade write endurance supports sustained daily rewrites over long service periods, lowering replacement risk in mixed-use and always-on deployments.
5. Samsung V-NAND 3D TLC combined with very low typical latency delivers a cost-efficient balance of capacity, reliability, and fast response for latency-sensitive enterprise applications.
Reference capacities in the same series: Lower capacity: 1.92 TB Higher capacity: 7.68 TB Capacity positioning analysis: Within this enterprise SSD family, 3.84 TB is the practical sweet spot. Compared with the 1.92 TB version, it provides much better headroom for OS images, application data, logs, and growth, reducing early capacity pressure in always-on environments. Compared with the 7.68 TB model, it delivers a more attractive cost-to-usable-space ratio while keeping broadly similar enterprise-class sequential throughput and random IOPS behavior. This makes it especially well suited for mid-scale virtualization clusters, such as hosting system and boot volumes for about 40 to 60 business application VMs.
Q: Is MZ-7LM3T8B suitable for a write-heavy database server?
A: Yes. With 1.3 DWPD, 5600 TBW, low 40 µs typical latency, and enterprise Samsung V-NAND 3D TLC, the MZ-7LM3T8B is suitable for many write-intensive database workloads.
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 3.84 TB drive, that equals about 5.0 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 sudden outages, reducing corruption risk and improving data integrity in enterprise environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for databases needing strong write performance and redundancy. RAID 1 is suitable for smaller deployments, while RAID 5/6 may prioritize capacity over write efficiency.