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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | PCIe Gen4 x4, NVMe 1.4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V6 (128-layer) 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 | MZQL23T8HCLS-00A07 |
|---|
Compared with MZQL23T8HCLS-00A07, the MZQL23T8HCLS-00B7C revision advances to Samsung V6 128-layer TLC on a PCIe Gen4 x4 / NVMe 1.4 platform, delivering up to 6.8 GB/s read, 4.0 GB/s write, and 1,000,000/180,000 IOPS for materially higher bandwidth and stronger VM density in the same 3.84 TB class. With 1 DWPD and 7008 TBW, this PM9A3 is a strong fit for read-optimized to mixed enterprise workloads such as virtualization clusters, scale-out databases, and content delivery tiers that need Gen4 performance with dependable endurance and better long-term service life than the earlier -00A07 revision.
With an endurance rating of 7008 TBW and 1 DWPD, the MZQL23T8HCLS-00B7C is built to handle a full drive write per day across its warranty period, making it well suited for steady enterprise workloads and frequent system updates. In typical server or OS-boot use, this level of endurance means the drive can serve reliably for many years without endurance becoming a practical concern. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17, combined with a 2 million hour MTBF, reflects a very low probability of unrecoverable read errors and a design target aligned with dependable datacenter operation.
1. The PCIe Gen4 x4 interface with NVMe 1.4 enables high-bandwidth, low-overhead data access, helping virtualization clusters and database servers respond faster under parallel workloads.
2. With sequential read throughput up to 6800 MB/s, this SSD accelerates large-file streaming, backup recovery, and analytics dataset loading in enterprise environments.
3. Its random read performance of 1,000,000K IOPS supports extremely high transaction concurrency, making it well suited for OLTP databases, VDI, and metadata-intensive cloud applications.
4. Built on Samsung V6 128-layer TLC NAND and rated for 1 DWPD, it balances cost-efficient capacity with the write endurance needed for mainstream mixed-use enterprise deployments.
5. A typical latency of 85 µs helps reduce storage response time at the tail, improving QoS consistency for latency-sensitive applications such as real-time analytics and virtualized workloads.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB At 3.84 TB, this drive sits in the sweet spot of the series. Compared with the 1.92 TB option, it provides much better headroom for OS images, application growth, snapshots, and short-term data bursts without forcing early capacity expansion. Compared with the 7.68 TB model, it typically delivers a more attractive balance of acquisition cost, usable capacity, and enterprise-grade performance consistency. This makes 3.84 TB especially well suited for mid-scale virtualization clusters, such as shared storage tiers for roughly 40 to 60 mixed-workload virtual machines.
Q: Is MZQL23T8HCLS-00B7C suitable for a write-heavy database server?
A: It can support mixed-use and moderate write-intensive database workloads, but with 1 DWPD, it is not ideal for very write-heavy environments. For sustained high-write databases, a higher-endurance SSD is recommended.
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 handle one full 3.84 TB drive write per day over the warranty period, aligning with its 7008 TBW endurance specification.
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 power failure, which is critical for enterprise systems requiring strong data integrity and consistency.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for database and virtualization workloads, as it balances performance, redundancy, and rebuild efficiency. For capacity-focused use cases, RAID 5 or RAID 6 may also be considered.