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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 |
|---|
The Samsung PM9A3 7.68TB (MZQL27T6HBLA-00B7C) stands out as a read-optimized enterprise NVMe SSD that pairs Samsung V6 128-layer TLC with PCIe Gen4 x4 to deliver up to 6,900/4,100 MB/s and 1.1M/200K IOPS, making it especially strong for high-density virtualization, scale-out storage, and latency-sensitive cloud infrastructure. Compared with the previous MZQL27T6HBLA-00A07 revision, this MPN offers a newer Gen4-era platform with the same enterprise-class 1 DWPD endurance and 14,016 TBW at 7.68TB, giving architects a more modern performance-per-watt and bandwidth profile for server refresh cycles.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZQL27T6HBLA-00B7C is built to handle consistent enterprise write activity across its warranty life with substantial margin for typical mixed workloads. In practical terms, for common OS, boot, logging, and read-heavy application scenarios, this level of endurance is far beyond normal consumption and can comfortably support long-term deployment without endurance concerns. For enterprise reliability, integrated power-loss protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and unclean shutdown issues. Its UBER of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity expectations for business-critical storage environments, while the 2 million hour MTBF further reflects a design focused on dependable continuous operation.
1. The PCIe Gen4 x4 interface with NVMe 1.4 gives this drive the bandwidth and command efficiency needed to keep dense virtualized hosts and modern data platforms from being storage-bound.
2. With 6900 MB/s sequential read performance, it can accelerate large database scans, analytics jobs, and AI model loading to shorten time-to-data in enterprise servers.
3. Delivering 1,100,000 K random read IOPS with a typical latency of 85 µs, it supports highly responsive OLTP, metadata-heavy workloads, and VDI environments under intense concurrent access.
4. Rated at 1 DWPD, the drive is well aligned with mixed enterprise workloads that require consistent daily rewrites without overpaying for endurance headroom.
5. Built on Samsung V6 (128-layer) TLC NAND, it balances cost, capacity, and sustained reliability, making it a practical fit for mainstream cloud, enterprise application, and scale-out storage deployments.
Lower capacity reference: 3.84 TB Higher capacity reference: 15.36 TB Capacity positioning analysis: In this series, 7.68 TB is the sweet-spot capacity. Compared with 3.84 TB, it gives much better headroom for data growth, VM density, and overprovisioning flexibility, reducing the need for early drive expansion. Compared with 15.36 TB, it keeps acquisition cost, replacement budget, and per-node storage allocation more balanced while delivering essentially the same enterprise-class sequential throughput and random IOPS profile. This makes 7.68 TB especially well suited for mid-scale virtualization clusters, mixed database nodes, or hyperconverged infrastructure requiring strong capacity efficiency without overcommitting budget.
Q: Is MZQL27T6HBLA-00B7C suitable for a write-heavy database server?
A: Yes, it can support many database workloads. With 1 DWPD, 14,016 TBW, TLC NAND, and low 85 µs latency, it fits mixed-use or moderate write-heavy enterprise database environments.
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 7.68 TB drive write per day across its warranty period, aligned with the specified 14,016 TB total endurance rating.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps protect in-flight data and metadata during sudden power failure, reducing corruption risk and improving enterprise data integrity.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for performance-critical database workloads, balancing speed and redundancy. For capacity-focused deployments, RAID 5 or RAID 6 may also be considered, depending on risk tolerance.