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| Brand | Samsung |
|---|---|
| Model | SM863a |
| Capacity | 1.92 TB |
| Usage Class | Mixed Use |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 48-layer 3D MLC |
|---|---|
| Drive Writes Per Day | 3.6 |
| Total Bytes Written | 12612 TBW |
| Sequential Read | 510 MB/s |
|---|---|
| Sequential Write | 485 MB/s |
| Random Read IOPS | 95000 |
| Random Write IOPS | 28000 |
| Average Latency | 115 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KM1T9HMJP-000D3 |
|---|
Compared with the earlier MZ7KM1T9HMJP-000D3 revision, the MZ7KM1T9HMJP0D3 SM863a is the newer enterprise-qualified build, combining Samsung 48-layer 3D MLC V-NAND with 3.6 DWPD and 12,612 TBW to deliver a stronger long-life profile for write-intensive SATA deployments. At 1.92 TB, it also sustains up to 510/485 MB/s and 95,000/28,000 IOPS, making it a more compelling choice than typical read-centric SATA SSDs for virtualization, database logging, and mixed-workload server tiers where endurance consistency matters as much as latency.
With an endurance rating of 12,612 TBW and 3.6 DWPD, the MZ7KM1T9HMJP0D3 is built to handle intensive write workloads over its service life, making it well suited for enterprise servers, virtualization, and data processing environments. In practical terms, under typical OS, application, and mixed enterprise workloads, this level of endurance means it can serve reliably as a system or business storage drive for many years without endurance concerns. Its enterprise reliability is further strengthened by power loss protection (PLP), which helps preserve in-flight data and protect metadata integrity during unexpected power interruptions. In addition, the UBER specification of 1.0E-17 and 2 million hours MTBF indicate a very low probability of uncorrectable bit errors and strong long-term operational reliability, giving procurement teams added confidence for business-critical deployment.
1. The SATA 6.0 Gbps interface, paired with full bus-saturating sequential read performance, provides a drop-in upgrade for legacy enterprise servers where predictable streaming throughput matters for boot volumes, logs, and content delivery.
2. Its strong random read capability helps virtualized databases and read-heavy transactional workloads serve far more small-block requests without forcing a move to costlier NVMe infrastructure.
3. A 3.6 DWPD endurance rating makes it well suited for write-intensive enterprise use cases such as OLTP, caching, and mixed-workload virtualization that demand sustained reliability over the drive’s service life.
4. Samsung 48-layer 3D MLC V-NAND delivers the durability and performance consistency enterprises expect, offering a better fit than TLC for environments where steady latency and heavier write activity are business critical.
5. The low typical latency supports faster application response times and more predictable QoS, which is especially valuable for latency-sensitive databases, VDI, and real-time enterprise services.
Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB At 1.92 TB, this model sits in the sweet spot of the PM863a family. Compared with the 960 GB option, it gives much better headroom for OS images, application growth, logs, and overprovisioning without changing the familiar enterprise SATA performance profile. Compared with the 3.84 TB version, it usually delivers the best balance of usable capacity, acquisition cost, and steady-state efficiency for mainstream deployments. It is especially well suited for medium virtualization clusters, such as hosting system and application disks for roughly 40 to 60 business VMs.
Q: Is MZ7KM1T9HMJP0D3 suitable for a write-heavy database server?
A: Yes. With 3.6 DWPD, 12,612 TBW, and Samsung 48-layer 3D MLC V-NAND, MZ7KM1T9HMJP0D3 is well suited for write-intensive database, logging, and transactional enterprise workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 3.6 full drive writes per day. On a 1.92 TB capacity, that equals about 6.9 TB of writes daily across its supported warranty endurance window.
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 environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive databases, as it balances redundancy and write performance. RAID 1 is also suitable for smaller, high-availability deployments.