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| Brand | Samsung |
|---|---|
| Model | PM9D3a |
| Capacity | 15.36 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | PCIe Gen5 x4, NVMe 2.0 |
|---|---|
| Total Interface Bandwidth | 128 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V8 (236-layer) 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 | 250000 |
| Average Latency | 65 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQL215THBLA-00A07 |
|---|
Compared with the previous-generation MZQL215THBLA-00A07, the MZWL615THBLF (PM9D3a) moves to PCIe Gen5 x4, NVMe 2.0, and Samsung V8 236-layer TLC, delivering up to 12,000/6,800 MB/s and 2.0M/250K IOPS for a clear step-up in bandwidth and transaction density in the 15.36 TB, 1 DWPD class. Its unique value is pairing that next-generation performance with 28,032 TBW endurance, making it a strong choice for high-throughput database, virtualization, and AI data pipeline tiers that need more performance per drive than earlier-generation enterprise SSDs without moving to a higher-endurance SKU.
With an endurance rating of 28,032 TBW, this SSD is designed to support writing the full drive capacity once per day for five years, providing substantial headroom for sustained enterprise use. In typical system-boot, application, and read-intensive server workloads, actual daily writes are usually far lower, so this level of endurance translates into a very comfortable long-term operating margin for procurement and deployment planning. Its power-loss protection (PLP) helps preserve data in flight during an unexpected outage by giving the drive time to safely commit critical data from cache to NAND, reducing the risk of corruption or incomplete writes. An enterprise-class UBER of 1.0E-17, together with a 2.5 million hour MTBF, indicates a very low probability of unrecoverable read errors and supports dependable operation in data-center environments.
1. The latest-generation PCIe and NVMe architecture provides enough bandwidth to accelerate AI model loading, real-time analytics, and high-speed data ingestion without the bus becoming the bottleneck.
2. Its class-leading random-read capability keeps heavily virtualized databases, metadata services, and large-scale cloud platforms highly responsive even under massive parallel access.
3. Built for one full drive rewrite per day, it offers a practical endurance profile for mainstream enterprise workloads such as read-heavy databases, virtualization clusters, and content delivery infrastructure.
4. Samsung’s advanced high-layer TLC NAND balances strong capacity density, power efficiency, and predictable reliability, making it well suited for cost-conscious enterprise deployments at scale.
5. The ultra-low typical latency helps reduce tail-response times in transactional applications, improving QoS consistency for latency-sensitive services like online trading, search, and real-time recommendation engines.
Reference capacities in the same series: Lower capacity: 7.68 TB Higher capacity: 30.72 TB Capacity positioning analysis: In this series, 15.36 TB sits at the practical sweet spot. Compared with 7.68 TB, it gives much better headroom for data growth, denser consolidation, and fewer drive slots consumed, while keeping sequential throughput and random IOPS at the same enterprise-class level. Compared with 30.72 TB, it usually delivers a more attractive cost-per-deployment balance, avoiding overprovisioned capacity and lowering budget pressure without sacrificing core performance. It is especially well suited for mid-scale virtualization clusters, database nodes, or roughly 120 to 180 mixed enterprise application instances.
Q: Is MZWL615THBLF suitable for a write-heavy database server?
A: MZWL615THBLF can support mixed and moderate write-intensive database workloads, but with 1 DWPD, it is not the best choice for extremely write-heavy environments requiring higher endurance margins.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated for 1 DWPD, meaning it can sustain one full 15.36 TB drive write per day over its warranty period, aligned with its 28,032 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 unexpected outages, which is critical for maintaining data integrity and reducing corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive server environments, as it balances redundancy and speed. RAID 1 or RAID 5 may fit capacity-focused deployments.