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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-00A07 |
|---|
Compared with the previous-generation MZQL27T6HBLA-00A07, the Samsung PM9A3 MZ-QL27T600 delivers a clear platform uplift with PCIe Gen4 x4 / NVMe 1.4 performance of up to 6,900/4,100 MB/s and 1,100,000/200,000 IOPS, making it notably stronger for bandwidth-intensive and latency-sensitive enterprise workloads. Its unique value in the 7.68 TB class is the combination of Samsung V6 128-layer TLC, 1 DWPD endurance, and 14,016 TBW, giving infrastructure teams a well-balanced drive for virtualization, scale-out databases, and high-density cloud storage where sustained read performance and predictable lifecycle matter.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZ-QL27T600 is built to handle sustained enterprise write workloads across its service life. In typical deployment scenarios, this level of endurance means the drive can comfortably support long-term use, including demanding system, cache, or mixed-read/write applications, without endurance becoming a practical concern. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption or incomplete writes. Its UBER specification of 1.0E-17 indicates an extremely low uncorrectable bit error rate, giving buyers added confidence in data integrity for business-critical storage environments.
1. The PCIe Gen4 x4 NVMe 1.4 architecture provides the bandwidth and command efficiency needed to keep virtualized databases, analytics nodes, and GPU servers fed without creating a storage bottleneck.
2. Its class-leading sequential read performance accelerates bulk data movement, reducing wait time for tasks such as checkpoint loading, backup recovery, and large-scale media or AI dataset access.
3. The very high random read capability is ideal for latency-sensitive enterprise workloads like OLTP, metadata-heavy virtualization, and high-concurrency web services where millions of small requests must be served smoothly.
4. A 1 DWPD endurance rating gives enterprises the confidence to run steady daily write activity over the full service life of the drive, making it well suited for mainstream mixed-use data center deployments.
5. Samsung V6 128-layer TLC NAND paired with low typical latency delivers a strong balance of density, consistency, and responsiveness, helping applications reach faster transaction completion and more predictable QoS under load.
Lower capacity reference: 3.84 TB Higher capacity reference: 15.36 TB In this series, the 7.68 TB model sits in the sweet spot for mainstream enterprise deployment. Compared with 3.84 TB, it gives meaningfully better space headroom, allowing denser VM placement, larger hot-data sets, and fewer drive slots consumed per node. Compared with 15.36 TB, it usually delivers a more attractive balance of acquisition cost, usable capacity, and steady enterprise performance, without overcommitting budget to capacity that may remain idle. It is especially well suited for mid-scale virtualization clusters, such as storage pools for around 40 to 60 mixed-application virtual machines.
Q: Is MZ-QL27T600 suitable for a write-heavy database server?
A: The MZ-QL27T600 can handle mixed enterprise workloads well, but with 1 DWPD, it is better suited for moderate write-intensive databases. For consistently 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: Based on its 1 DWPD rating and 14,016 TBW, this SSD supports about one full 7.68 TB drive write per day over a typical five-year endurance 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 unexpected outages, which is critical for maintaining data integrity and preventing corruption in enterprise systems.
Q: What RAID level is recommended for this SSD?
A: For most enterprise deployments, RAID 10 is the preferred option because it balances strong performance, low latency, and redundancy. For capacity-focused environments, RAID 5 or RAID 6 may also be considered.