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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Read Intensive |
| Host Interface | PCIe Gen4 x4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | E1.S (9.5mm) |
|---|
| NAND Flash | Samsung V-NAND 6th-Gen 128-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 6900 MB/s |
|---|---|
| Sequential Write | 4100 MB/s |
| Random Read IOPS | 1100000 |
| Random Write IOPS | 180000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZTL23T8HCLS-00007 |
|---|
Compared with the earlier MZTL23T8HCLS-00007, the MZTL23T8HCLS-00A07 updates the 3.84TB PM9A3 with Samsung 6th-Gen 128-layer V-NAND on a PCIe Gen4 x4 platform, delivering up to 6,900/4,100 MB/s and 1,100,000/180,000 IOPS for higher performance density within the same 1 DWPD enterprise tier. With 7,008 TBW endurance, this drive is a strong fit for virtualized infrastructure, scale-out read-centric databases, and mixed cloud workloads that need a better balance of latency, throughput, and usable capacity than previous-generation TLC NVMe SSDs.
With an endurance rating of 7008 TBW and 1 DWPD, the MZTL23T8HCLS-00A07 is built to handle writing its full capacity once per day across its rated service life, which is more than sufficient for typical enterprise boot, OS, virtualization, and read-intensive application workloads. In practical terms, for use as a system or server boot drive under normal operating conditions, this level of endurance provides long-term peace of mind and can comfortably support many years of continuous deployment without endurance becoming a concern. For enterprise reliability, the drive includes Power Loss Protection (PLP), which 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 indicates an extremely low unrecoverable bit error rate, supporting high data integrity expectations in datacenter environments, while the 2 million hour MTBF further reinforces confidence in stable 24/7 operation.
1. The PCIe Gen4 x4 interface, paired with top-tier sequential read bandwidth, accelerates large dataset ingestion and sharply reduces VM boot, analytics scan, and AI model load times in performance-sensitive servers.
2. Its strong random read capability enables databases, metadata-heavy virtualization clusters, and high-concurrency web services to sustain far more transactions with fewer storage bottlenecks at peak load.
3. A 1 DWPD endurance rating makes it a dependable fit for mixed enterprise workloads that rewrite data every day, balancing service life, predictable maintenance cycles, and total cost of ownership.
4. Samsung 6th-Gen 128-layer 3D TLC V-NAND delivers enterprise-class density and power efficiency, helping operators scale capacity without sacrificing consistency, rack efficiency, or deployment economics.
5. With a typical latency of 85 µs, the drive helps latency-sensitive applications respond faster, improving tail-latency control for OLTP databases, virtual desktops, and real-time service platforms.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this series, the 3.84 TB model sits in the sweet spot between the 1.92 TB and 7.68 TB options. Compared with 1.92 TB, it gives much more headroom for OS images, active datasets, logs, and steady growth, reducing early capacity pressure while keeping enterprise-class read/write and IOPS behavior essentially unchanged. Compared with 7.68 TB, it delivers a more efficient balance of acquisition cost, usable capacity, and performance consistency. It is well suited for medium-scale virtualization clusters, such as hosting boot and application storage for about 40 to 60 business workloads.
Q: Is MZTL23T8HCLS-00A07 suitable for a write-heavy database server?
A: Yes, it can support database workloads well. With 1 DWPD, 7008 TBW, PCIe Gen4 x4, and low 85 µs latency, it fits mixed to moderately write-heavy enterprise database environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1 DWPD, meaning it can sustain one full 3.84 TB drive write per day throughout its warranty period, aligning with its 7008 TB total endurance rating.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps protect in-flight data and mapping tables during sudden power failure, reducing corruption risk and improving enterprise data integrity.
Q: What RAID level is recommended for this SSD?
A: RAID choice depends on workload and availability needs. RAID 1 or RAID 10 is commonly recommended for databases, while RAID 5 or RAID 6 may suit capacity-focused deployments.