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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Enterprise/Read-Intensive |
| Host Interface | PCIe 4.0 x4, NVMe |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | 2.5 inch 7mm (U.2) |
|---|
| NAND Flash | Samsung V6 (128L) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 6800 MB/s |
|---|---|
| Sequential Write | 4000 MB/s |
| Random Read IOPS | 1000000 |
| Random Write IOPS | 180000 |
| Average Latency | 80 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQLB3T8HALS-00007 |
|---|
Compared with the previous-generation MZQLB3T8HALS-00007, the Samsung PM9A3 MZ-QL23T80 delivers a clear generational step up with PCIe 4.0 x4 NVMe, up to 6,800/4,000 MB/s sequential throughput, and 1,000,000/180,000 IOPS, enabling much faster response for virtualized infrastructure, scale-out storage, and read-intensive database tiers. Its 3.84 TB capacity, Samsung V6 128-layer TLC NAND, and 1 DWPD / 7008 TBW endurance make it a strong fit for operators who need higher performance density and better platform efficiency than the older MZQLB3T8HALS-00007 without moving to a higher-endurance write-optimized SSD.
With a rated endurance of 7,008 TBW and 1 DWPD, this SSD is built to sustain one full drive write per day across its designed service life, which is more than enough for typical enterprise workloads. In practical use, that means it can serve reliably as a system or boot drive for years, including long-term deployments that customers often expect to run for around 10 years under moderate write activity. The included power-loss protection (PLP) helps protect in-flight data and preserve drive integrity during unexpected power interruptions, reducing the risk of corruption. Its UBER of 1.0E-17 indicates an extremely low chance of an uncorrectable read error, giving procurement teams confidence in data reliability for critical applications.
1. The PCIe 4.0 x4 NVMe architecture gives this drive the bandwidth and parallelism needed to remove storage bottlenecks in virtualized clusters, analytics nodes, and GPU servers.
2. Its high sequential read performance accelerates large-file movement, helping databases, media pipelines, and AI training environments load massive datasets much faster.
3. The strong random read capability supports dense mixed-workload environments by keeping transaction-heavy applications, metadata access, and VM boot storms consistently responsive.
4. A 1 DWPD endurance rating makes it well suited for always-on enterprise deployments that rewrite data daily, such as cloud infrastructure, caching tiers, and primary business applications.
5. Built with Samsung V6 128-layer TLC NAND and tuned for low typical latency, it delivers a balanced mix of capacity efficiency, predictable QoS, and fast response times for latency-sensitive enterprise workloads.
Lower-capacity reference: 1.92 TB Higher-capacity reference: 7.68 TB The 3.84 TB option sits in the sweet spot of this SSD family. Compared with the 1.92 TB model, it gives meaningfully more headroom for OS images, application growth, logs, and overprovisioning, reducing early capacity pressure in always-on enterprise environments. Compared with the 7.68 TB version, it typically delivers the best balance of acquisition cost, usable capacity, and broadly similar enterprise-class sequential and random performance. It is well suited for mid-scale virtualization, such as shared boot and application storage for about 40 to 60 business service instances.
Q: Is MZ-QL23T80 suitable for a write-heavy database server?
A: Yes, the MZ-QL23T80 can support database workloads well, thanks to 1 DWPD, 7008 TBW, low 80 µs latency, and enterprise TLC NAND. For extremely write-intensive environments, higher-endurance models may be better.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated at 1 DWPD, meaning it can sustain one full 3.84 TB drive write per day throughout its warranty period, aligned with its total endurance rating of 7008 TBW.
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 power failure, which is critical for enterprise systems requiring data integrity, consistency, and reduced corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID recommendation depends on your priority. RAID 1 is suitable for redundancy, RAID 10 for both performance and protection, and RAID 5 or 6 for capacity efficiency in read-focused deployments.