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| Brand | Samsung |
|---|---|
| Model | PM9D3a |
| Capacity | 15.36TB |
| Usage Class | Enterprise |
| Host Interface | NVMe PCIe Gen5 x4 |
|---|---|
| Total Interface Bandwidth | 128 Gb/s |
| Form Factor | E1.S |
|---|
| NAND Flash | Samsung V-NAND 7th Gen TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 28032 TBW |
| Sequential Read | 12000 MB/s |
|---|---|
| Sequential Write | 6800 MB/s |
| Random Read IOPS | 2000000 |
| Random Write IOPS | 400000 |
| Average Latency | 75 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZTLB15THALA |
|---|
The Samsung PM9D3a 15.36TB (MPN: MZTL615THBLF-00AW7) is a strong upgrade for performance-dense enterprise deployments, combining PCIe Gen5 x4, Samsung 7th Gen V-NAND TLC, up to 12,000/6,800 MB/s sequential throughput, and 2,000,000/400,000 random IOPS in a 1 DWPD class drive. Compared with the previous-generation MZTLB15THALA, it delivers a clear generational step forward in host interface speed and usable bandwidth, making it better suited for AI data pipelines, high-concurrency virtualization, and read-intensive cloud storage tiers that need more performance per slot without sacrificing 28,032 TBW endurance.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZTL615THBLF-00AW7 is built to handle approximately 28 petabytes of total writes, which is far beyond the write volume of a typical OS, boot, or read-centric enterprise application drive. In practical terms, under normal server workloads it can be deployed as a system drive for 10 years or more with ample endurance margin, giving procurement teams confidence in long-term write durability. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity during unexpected power interruption, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting highly dependable data reads in business-critical environments and complementing its 2.5 million-hour MTBF design target.
1. The NVMe over PCIe Gen5 x4 interface gives this drive the bandwidth headroom needed to keep modern AI, analytics, and high-density virtualization platforms fed without creating a storage bottleneck.
2. Its 12000 MB/s sequential read performance sharply reduces large dataset, checkpoint, and media asset loading times in data-intensive enterprise workflows.
3. With 2,000,000 K random read IOPS, the drive can sustain extremely heavy parallel access patterns, making it well suited for low-latency databases, search clusters, and inference serving.
4. Rated for 1 DWPD, it is tuned for mainstream enterprise deployments that need dependable day-after-day write endurance for mixed-use workloads without overprovisioning for unnecessary cost.
5. Built on Samsung V-NAND 7th Gen TLC and delivering a typical latency of 75 µs, it combines mature flash efficiency with fast response times to improve application consistency under real production pressure.
Lower capacity reference: 7.68TB Higher capacity reference: 30.72TB Capacity positioning analysis: In this series, 15.36TB is the sweet-spot capacity for mainstream enterprise deployment. Compared with 7.68TB, it gives much better space headroom, allowing denser consolidation, longer refresh cycles, and more flexibility for mixed workloads without quickly running into capacity limits. Compared with 30.72TB, it typically delivers a more attractive cost-per-drive while keeping similar enterprise-class sequential throughput and random IOPS, making budget planning easier. It is especially well suited for mid-scale virtualization clusters, such as shared storage for roughly 150 to 250 business application VMs or sizable database and analytics tiers.
Q: Is MZTL615THBLF-00AW7 suitable for a write-heavy database server?
A: It can support mixed-read/write database workloads, but with 1 DWPD it is better suited for read-intensive or moderate-write servers rather than consistently heavy write-heavy database environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1 DWPD, meaning it can sustain one full 15.36TB drive write per day over its warranty period, aligned with its 28,032TB TBW endurance rating.
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, which is critical for data integrity, consistency, and enterprise system reliability.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for enterprise SSD deployments requiring strong performance and redundancy. For capacity-focused environments, RAID 5 or RAID 6 may also be considered, depending on workload priorities.