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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 MZWL63T8HFLT-00BW7 brings a clear generational step over MZQL23T8HCLS-00A07 by moving to PCIe Gen5 x4 and NVMe 2.0, pairing Samsung V8 236-layer TLC with up to 12,000 MB/s read, 6,200 MB/s write, and 2.0M random-read IOPS for much higher host-side throughput and faster response under mixed data-center workloads. At 3.84 TB with 1 DWPD and 7008 TBW, it is especially strong for performance-dense server tiers such as virtualization clusters, scale-out databases, and AI data pipelines that need better bandwidth-per-slot and endurance continuity than the previous generation.
With an endurance rating of 7,008 TBW and 1 DWPD, the MZWL63T8HFLT-00BW7 is built to handle writing its full capacity once per day across the warranty period, making it well suited for steady enterprise workloads. In typical real-world use, especially as an OS, boot, or mixed-read system drive, this level of endurance provides a very comfortable margin and supports years of reliable operation without endurance-related concern. For enterprise reliability, built-in power loss protection (PLP) helps preserve in-flight data and protects metadata integrity if power is suddenly interrupted, reducing the risk of corruption during unexpected outages. Its 1.0E-17 UBER specification indicates an extremely low unrecoverable bit error rate, which is critical for maintaining data integrity in servers and storage systems, while the 2.5 million hour MTBF further reflects a design focused on dependable long-term operation.
1. The PCIe Gen5 x4 interface with NVMe 2.0 unleashes a new tier of host-to-drive bandwidth, helping AI clusters, in-memory databases, and scale-out analytics ingest data with far less storage-side contention.
2. Its class-leading sequential read performance cuts dataset staging, checkpoint restore, and large-object streaming times, improving GPU and CPU utilization in throughput-sensitive enterprise workloads.
3. Exceptional random read capability enables dense virtualization, high-QPS databases, and real-time recommendation engines to sustain massive parallel access without becoming an I/O bottleneck.
4. A 1 DWPD endurance profile is well suited for read-centric enterprise deployments such as content delivery, cloud infrastructure, and analytics tiers that need predictable lifespan under continuous daily operation.
5. Built on Samsung V8 236-layer TLC NAND and backed by very low typical latency, the drive balances enterprise-grade capacity efficiency with fast response times for latency-sensitive transactional applications.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this product family, 3.84 TB is the practical sweet spot. Compared with 1.92 TB, it gives much better headroom for data growth, overprovisioning, and mixed enterprise workloads without changing the expected sequential throughput or random IOPS profile. Compared with 7.68 TB, it usually delivers the best balance between acquisition cost, usable capacity, and predictable performance-per-dollar. This makes 3.84 TB especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for roughly 40 to 70 business workloads on a dual-socket server.
Q: Is MZWL63T8HFLT-00BW7 suitable for a write-heavy database server?
A: It can support mixed-use database workloads, but with 1 DWPD, it is better suited for moderate write-intensive environments rather than extremely write-heavy database servers with sustained high daily overwrite rates.
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 drive write per day over its warranty period, supported by a 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 is critical because it helps preserve in-flight data and metadata during sudden power failure, reducing corruption risk in enterprise applications.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is commonly recommended for enterprise SSDs like this when performance, redundancy, and fast recovery are priorities. RAID choice should still match workload and capacity requirements.