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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Enterprise/Read-Intensive |
| Host Interface | PCIe 4.0 x4, NVMe 1.4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | EDSFF E1.S (9.5mm) |
|---|
| 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 | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ1LB3T8HMLA |
|---|
Compared with the predecessor MZ1LB3T8HMLA, the MZ1L23T8HBLA (PM9A3) steps up to PCIe 4.0 x4/NVMe 1.4 and delivers up to 6800/4000 MB/s with 1,000,000/180,000 IOPS, giving a clear generational uplift in host bandwidth and random-read responsiveness. With 3.84 TB of Samsung V6 128L TLC and enterprise endurance rated at 1 DWPD / 7008 TBW, it is the stronger fit for VM-dense virtualization clusters, software-defined storage cache tiers, and read-heavy OLTP replica nodes that need Gen4 performance without moving into a higher-cost endurance class.
With an endurance rating of 7008 TBW and 1 DWPD, the MZ1L23T8HBLA is designed to sustain full-drive writes every day throughout its rated service life, making it well suited for steady enterprise workloads. In typical real-world use, especially for OS, boot, read-intensive, or mixed application storage, this level of endurance provides long-term peace of mind and can comfortably support many years of operation without endurance becoming a practical concern. For enterprise reliability, 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 integrity. Its UBER of 1.0E-17, together with a 2 million-hour MTBF, indicates a very low probability of unrecoverable bit errors and a high level of dependability expected in data center environments.
1. The PCIe 4.0 x4 interface with NVMe 1.4 enables a high-parallel, low-overhead data path that helps enterprise servers sustain faster VM boot, analytics ingestion, and storage-tier responsiveness under heavy load.
2. Its strong sequential read performance accelerates large-block workloads such as AI model loading, backup restore, media processing, and rapid dataset streaming from shared storage pools.
3. The drive’s exceptional random read capability, paired with ultra-low typical latency, allows databases, virtual desktop farms, and high-concurrency cloud services to return small-block data with consistently fast response times.
4. A 1 DWPD endurance rating makes it well suited for mainstream enterprise deployments that require predictable write durability across daily database updates, virtualization traffic, and mixed read/write application workloads.
5. Samsung V6 128-layer TLC NAND provides an effective balance of density, cost efficiency, and reliability, making it a practical fit for scaling enterprise capacity without sacrificing service stability.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB Capacity positioning analysis: In this enterprise SSD family, 3.84 TB is the practical sweet spot. Compared with 1.92 TB, it provides much better headroom for data growth, denser VM placement, and fewer drive slots consumed, while keeping the same class of sequential throughput and random IOPS expected in the series. Compared with 7.68 TB, it offers a more balanced cost-per-drive and lower upfront budget without sacrificing day-to-day performance consistency. It is best suited for mid-scale virtualization clusters, such as hosting boot and application volumes for roughly 40 to 60 general-purpose virtual machines.
Q: Is MZ1L23T8HBLA suitable for a write-heavy database server?
A: It is suitable for mainstream enterprise database workloads, especially mixed read/write environments. However, with 1 DWPD endurance, extremely write-intensive database logging or caching workloads may require a higher-endurance SSD.
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 one full 3.84 TB drive write per day. Based on its 7008 TBW rating, that aligns with a typical five-year enterprise warranty period.
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 database consistency, filesystem integrity, and enterprise application reliability.
Q: What RAID level is recommended for this SSD?
A: For enterprise database use, RAID 10 is generally recommended because it provides strong performance, redundancy, and fast rebuilds. RAID 1 suits smaller deployments, while RAID 5/6 favors capacity over write performance.