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| Brand | Samsung |
|---|---|
| Model | PM9D3a |
| Capacity | 3.84 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 | 7008 TBW |
| Sequential Read | 12000 MB/s |
|---|---|
| Sequential Write | 6200 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 | MZQL23T8HCLS-00A07 |
|---|
The Samsung PM9D3a 3.84TB (MZWL63T8HFLT) brings a clear generational step up from MZQL23T8HCLS-00A07 by moving to PCIe Gen5 x4 and NVMe 2.0, delivering up to 12,000/6,200 MB/s and 2.0M/250K IOPS to substantially increase host bandwidth and read-side transaction density. Built on Samsung 236-layer V8 TLC with 1 DWPD and 7008 TBW, it is a strong fit for high-throughput virtualization, scale-out databases, and AI data-serving tiers that need higher performance per drive without sacrificing enterprise endurance.
With an endurance rating of 7008 TBW and 1 DWPD, the MZWL63T8HFLT is designed to handle a full drive write per day across its warranty life, making it well suited for sustained enterprise workloads such as OS boot, logging, caching, and read-intensive application storage. In typical real-world deployment, this level of endurance is more than sufficient for use as a reliable system or application drive over many years without concern about normal daily write activity. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protect metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17, together with a 2.5 million hour MTBF, reflects a high-reliability design that supports dependable long-term operation in business-critical environments.
1. The PCIe Gen5 x4 interface with NVMe 2.0 unlocks a new class of host-to-drive bandwidth, helping enterprise servers remove storage bottlenecks in AI pipelines, real-time analytics, and scale-out databases.
2. Its sequential read performance accelerates large-block data movement, cutting dataset loading, backup restore, and media streaming wait times in throughput-heavy environments.
3. With top-tier random read capability, the drive sustains extremely high transaction density, making it ideal for virtualization clusters, OLTP databases, and latency-sensitive cloud services.
4. The endurance profile is well suited for read-intensive enterprise workloads, giving operators predictable lifespan and lower replacement frequency in always-on datacenter deployments.
5. Built on Samsung’s advanced V8 236-layer TLC NAND and backed by very low typical latency, this SSD delivers a strong balance of density, cost efficiency, and fast response for business-critical applications.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this series, the 3.84 TB model sits at the practical sweet spot. Compared with the 1.92 TB version, it gives much better headroom for OS images, application growth, logs, and snapshot retention, reducing early capacity pressure without changing the expected enterprise performance profile. Compared with the 7.68 TB option, it delivers a more balanced cost-per-drive while keeping similar sequential and random performance characteristics. It is especially well suited for mid-scale virtualization clusters, such as shared boot, database, and mixed application storage for around 40 to 60 business workloads.
Q: Is MZWL63T8HFLT suitable for a write-heavy database server?
A: MZWL63T8HFLT can support mixed or moderate write-intensive database workloads, but with 1 DWPD, it is not the best fit for extremely write-heavy environments requiring higher sustained endurance.
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 handle one full 3.84 TB drive write per day across its warranty period, aligned with its 7008 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 integrity, consistency, and enterprise application reliability.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 1 suits redundancy, RAID 10 balances performance and protection, and RAID 5 or 6 may fit capacity-focused enterprise deployments.