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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 960 GB |
| 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 | 1752 TBW |
| Sequential Read | 6500 MB/s |
|---|---|
| Sequential Write | 1500 MB/s |
| Random Read IOPS | 580000 |
| Random Write IOPS | 70000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQLB960HAJR-00007 |
|---|
Compared with the previous-generation MZQLB960HAJR-00007, the Samsung PM9A3 MZQL2960HCJR-00A07 steps up to a PCIe Gen4 x4, NVMe 1.4 platform with 128-layer V6 TLC NAND, delivering up to 6,500 MB/s sequential read and 580,000 random read IOPS for a clear gain in read-side throughput and responsiveness. At 960 GB, its 1 DWPD endurance and 1,752 TBW make it a strong fit for read-intensive virtualized servers, content delivery, and scale-out cloud nodes that need better front-end bandwidth than the prior generation without moving to a higher-end mixed-use drive.
With an endurance rating of 1,752 TBW and 1 DWPD, this SSD is designed to handle the equivalent of writing its full capacity once every day over a standard 5-year enterprise usage cycle. In typical server boot-drive or system-disk workloads, where daily writes are usually much lower, this provides a very comfortable endurance margin for long-term deployment. Enterprise-grade power loss protection (PLP) helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving system recovery confidence. Its ultra-low UBER of 1.0E-17 means the probability of an unrecoverable bit error is extremely low, supporting high data integrity requirements in business-critical environments.
1. The PCIe Gen4 x4 NVMe 1.4 architecture provides the bandwidth and command efficiency needed to keep virtualized servers, databases, and analytics nodes from being held back by storage.
2. Its strong sequential read throughput speeds up large-file operations such as AI model loading, backup recovery, and high-volume data ingestion.
3. High random-read capability, combined with very low typical latency, helps OLTP systems, VDI environments, and metadata-heavy workloads respond quickly even under sustained queue pressure.
4. The 1 DWPD endurance rating is well aligned with mainstream enterprise mixed-use deployments that need predictable service life without overpaying for write endurance they will not use.
5. Samsung V6 128-layer TLC NAND delivers a practical balance of capacity, consistency, and cost efficiency for scale-out data center storage.
Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB The 960 GB model sits in the sweet spot of this SSD family. Compared with the 480 GB version, it gives materially better headroom for OS images, logs, overprovisioning, and workload growth, reducing early capacity pressure in production. Compared with the 1.92 TB option, it preserves nearly the same enterprise-class read/write and random IOPS behavior while keeping acquisition cost and replacement budget more controlled. In practice, 960 GB is well suited for mid-scale deployments, such as a compact virtualization cluster, database replicas, or high-availability application nodes.
Q: Is MZQL2960HCJR-00A07 suitable for a write-heavy database server?
A: It can support moderate write-intensive database workloads, but with 1 DWPD, it is better suited for mixed-use enterprise servers rather than extremely write-heavy, high-transaction database environments.
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 960 GB drive write per day over its warranty period, aligned with its 1752 TBW endurance rating.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP is critical because it helps preserve in-flight data and metadata during unexpected outages, reducing corruption risk in enterprise applications.
Q: What RAID level is recommended for this SSD?
A: For enterprise deployment, RAID 1 or RAID 10 is commonly recommended for strong redundancy and performance. RAID 5 may be used, but write-intensive workloads can impact parity performance.