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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 7.68 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 | 14016 TBW |
| Sequential Read | 6900 MB/s |
|---|---|
| Sequential Write | 4100 MB/s |
| Random Read IOPS | 1100000 |
| Random Write IOPS | 200000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQL27T6HBLA-00A01 |
|---|
Compared with the earlier MZQL27T6HBLA-00A01, the MZQL27T6HBLA-00A07 revision of Samsung’s PM9A3 brings a newer Samsung V6 128-layer TLC NAND generation to a PCIe Gen4 x4, NVMe 1.4 platform, giving it a clear advantage in bandwidth density and platform efficiency within the same 7.68 TB, 1 DWPD enterprise tier. With up to 6,900/4,100 MB/s sequential performance, 1.1M/200K random IOPS, and 14,016 TBW endurance, it is a strong fit for read-intensive virtualization clusters, scale-out storage, and high-concurrency cloud workloads that need higher throughput than prior-generation Gen3 enterprise SSDs without moving to a higher-endurance drive class.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZQL27T6HBLA-00A07 is built to handle heavy, sustained write workloads across its service life. In typical enterprise or system-boot usage, this level of endurance means the drive can be deployed with high confidence for many years, and for lighter OS or application workloads it can operate effectively for up to a decade without endurance concerns. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is suddenly interrupted. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity and dependable operation in business-critical storage environments.
1. The PCIe Gen4 x4 interface with NVMe 1.4 enables the drive to fully exploit modern server backplanes, reducing storage bottlenecks for virtualization, analytics, and scale-out application nodes.
2. Its class-leading sequential read performance accelerates large-block workloads such as database backup, media streaming, and AI model loading, helping servers spend less time waiting on data movement.
3. The extremely strong random read capability is ideal for transaction-heavy environments like OLTP databases, metadata services, and high-concurrency virtual machines where fast access to small data blocks drives user experience.
4. A 1 DWPD endurance rating provides predictable write sustainability for always-on enterprise deployments, making it well suited to mixed-use workloads that need steady reliability over the service life of the SSD.
5. Built on Samsung V6 128-layer TLC NAND with low typical latency, the drive balances enterprise-grade density, cost efficiency, and responsive data access for latency-sensitive cloud and business-critical applications.
Lower capacity reference: 3.84 TB Higher capacity reference: 15.36 TB At 7.68 TB, this model sits in the sweet spot of the series. Compared with 3.84 TB, it gives much better headroom for data growth, denser consolidation, and fewer drive slots consumed, while keeping the same class of enterprise sequential throughput and random IOPS. Compared with 15.36 TB, it usually delivers the best balance of acquisition cost, usable capacity, and predictable performance per dollar. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for roughly 60 to 120 virtual machines.
Q: Is MZQL27T6HBLA-00A07 suitable for a write-heavy database server?
A: It can support database workloads, but with 1 DWPD it is better suited for mixed-use rather than very write-intensive database servers. For sustained heavy writes, 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 7.68 TB drive write per day over its warranty term, aligned with its 14,016 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 outages, which is critical for maintaining data integrity and reducing corruption risk in enterprise systems.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 1 or RAID 10 is preferred for databases and critical workloads, while RAID 5 or RAID 6 may suit capacity-focused environments.