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| Brand | Samsung |
|---|---|
| Model | PM9D3a |
| Capacity | 7.68 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 | 14016 TBW |
| Sequential Read | 12000 MB/s |
|---|---|
| Sequential Write | 6800 MB/s |
| Random Read IOPS | 2000000 |
| Random Write IOPS | 400000 |
| 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 | MZQL27T6HBLA-00A07 |
|---|
Compared with MZQL27T6HBLA-00A07, the PM9D3a upgrades to PCIe Gen5 x4 and NVMe 2.0, delivering up to 12,000/6,800 MB/s and 2,000,000/400,000 IOPS for a clear step up in throughput and low-latency mixed-workload performance. With 7.68 TB capacity, Samsung V8 236-layer TLC, and 14,016 TBW at 1 DWPD, it is especially well suited for dense enterprise storage tiers that need both high endurance and strong read/write balance.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZWL67T6HBLC-00AW7 is built to handle sustained enterprise write activity over its service life, and in typical OS boot, application, logging, or mixed business workloads it provides a very large endurance margin. In practical terms, for use as a system drive or general enterprise storage under normal daily write volumes, this level of TBW means buyers can expect long-term, worry-free operation well beyond ordinary deployment demands. From a reliability perspective, built-in Power Loss Protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving system recovery confidence. Its enterprise-class UBER of 1.0E-17 indicates an extremely low probability of unrecoverable bit errors during reads, which is especially important for data integrity in servers, storage arrays, and other business-critical environments.
1. The PCIe Gen5 x4 interface with NVMe 2.0 provides next-generation host bandwidth and lower software overhead, enabling faster database scans, analytics jobs, and AI data pipelines.
2. Its class-leading sequential read performance accelerates large-block workloads such as model loading, backup restores, and high-speed content streaming in enterprise servers.
3. Extremely strong random read capability keeps latency low under heavily concurrent access, making it ideal for virtualized environments, OLTP databases, and metadata-intensive cloud services.
4. A 1 DWPD endurance profile delivers predictable mixed-workload reliability for mainstream enterprise deployments, balancing sustained write tolerance with efficient total cost of ownership.
5. Samsung V8 236-layer TLC NAND combined with very low typical latency helps shorten application response times while maintaining the density, efficiency, and consistency required in modern data centers.
Lower capacity reference: 3.84 TB Higher capacity reference: 15.36 TB At 7.68 TB, this SSD sits at the sweet spot of the family. Compared with the 3.84 TB option, it offers much better headroom for data growth, denser consolidation, and fewer drive slots consumed in enterprise servers. Compared with the 15.36 TB model, it usually delivers a more attractive cost profile while keeping essentially the same class of sequential throughput and random IOPS. That makes 7.68 TB an excellent mainstream choice for medium-scale virtualization clusters, such as hosting boot and application volumes for about 40 to 60 mixed-workload virtual machines.
Q: Is MZWL67T6HBLC-00AW7 suitable for a write-heavy database server?
A: It can support database workloads, but with 1 DWPD it is better suited for mixed or moderate write environments rather than highly write-intensive database servers requiring higher endurance margins.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can sustain one full 7.68 TB drive write per day across its warranty period, consistent with its 14,016 TBW 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 data integrity, filesystem consistency, and enterprise application reliability.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your goal: RAID 1 for redundancy, RAID 10 for performance plus protection, and RAID 5 or 6 for capacity-efficient fault tolerance.