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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 | MZ-QL27T6HBLA |
|---|
Compared with the previous-generation MZ-QL27T6HBLA, the Samsung PM9A3 MZ-QL27T60 delivers a clear platform upgrade with PCIe Gen4 x4 and NVMe 1.4, scaling to 6,900/4,100 MB/s and 1,100,000/200,000 IOPS for substantially higher throughput and faster response under parallel enterprise workloads. With 7.68 TB of Samsung V6 128-layer TLC, 1 DWPD, and 14,016 TBW, it offers a stronger balance of density, endurance, and read-centric performance than its predecessor, making it a better fit for virtualized infrastructure, large-scale content delivery, and high-throughput cloud storage tiers.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZ-QL27T60 is designed to handle approximately 7.68 TB of writes per day over a 5-year usage model, which is far beyond the demands of a typical OS, boot, or general application drive. In practical terms, for normal enterprise system-disk and mixed-read workloads, this level of endurance provides long-term headroom and makes the drive a low-risk choice for sustained daily operation. Its built-in power loss protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving operational resilience in server and storage environments. Combined with an enterprise-class UBER of 1.0E-17 and a 2 million-hour MTBF rating, it is engineered for very high data integrity and dependable service in business-critical deployments.
1. The PCIe Gen4 x4 interface with NVMe 1.4 unlocks host-side bandwidth efficiently, helping enterprise servers accelerate large dataset ingestion, VM boot storms, and storage-intensive analytics pipelines.
2. Its strong sequential read performance shortens backup restore windows and speeds up media streaming, data warehousing, and AI model loading at scale.
3. The high random read capability is especially valuable for OLTP databases, virtualization clusters, and metadata-heavy cloud workloads that depend on fast access to massive numbers of small files.
4. A 1 DWPD endurance profile makes it well suited for read-centric enterprise deployments, delivering predictable lifespan and lower replacement risk in content delivery, analytics, and mixed-use server environments.
5. Built on Samsung V6 128-layer TLC NAND and backed by low typical latency, the drive combines mature flash efficiency with responsive QoS, supporting consistent application performance in latency-sensitive enterprise infrastructure.
Lower capacity reference: 3.84 TB Higher capacity reference: 15.36 TB Capacity positioning analysis: Within this enterprise SSD family, the 7.68 TB model sits at the practical sweet spot. Compared with the 3.84 TB version, it gives much more headroom for data growth, denser server consolidation, and longer refresh cycles without changing the expected enterprise-grade sequential and random performance profile. Compared with the 15.36 TB option, it keeps acquisition cost and capacity risk under better control while still delivering strong usable density. It is best suited for mid-scale virtualization clusters, database nodes, or all-flash storage pools serving roughly 40 to 80 mixed business workloads.
Q: Is MZ-QL27T60 suitable for a write-heavy database server?
A: Yes, it can support write-intensive database workloads. With 1 DWPD, 14,016 TBW endurance, low 85 µs latency, and Samsung 128-layer TLC NAND, it fits many enterprise database environments reliably.
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 it can sustain one full 7.68 TB drive write per day throughout its warranty period, within normal enterprise operating conditions.
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.
Q: What RAID level is recommended for this SSD?
A: RAID selection depends on your priority. RAID 10 is commonly recommended for databases needing strong performance and redundancy, while RAID 5 or 6 may suit capacity-focused environments.