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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 | MZQL2960HCJR-00A07 |
|---|
Compared with the earlier MZQL2960HCJR-00A07, the MZQL2960HCJR-00W07 revision upgrades the 960 GB PM9A3 with Samsung V6 128-layer TLC on a PCIe Gen4 x4, NVMe 1.4 platform, delivering up to 6,500 MB/s sequential read performance while maintaining enterprise-class 1 DWPD and 1,752 TBW endurance. This makes it a stronger choice for read-centric virtualized infrastructure, content-serving tiers, and scale-out server boot/cache deployments, where the newer revision’s higher host-interface bandwidth and solid random-read capability provide better service responsiveness than the prior generation.
With an endurance rating of 1,752 TBW and 1 DWPD, this SSD is designed to handle 1.752 petabytes of total host writes over its service life, which is more than sufficient for typical enterprise boot, OS, virtualization, and read-heavy application workloads. In practical terms, when used as a system or application drive under normal daily write volumes, it can operate reliably for many years and can comfortably support a 10-year use scenario in lighter write environments. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protects metadata integrity if power is interrupted unexpectedly, reducing the risk of corruption and unplanned recovery events. Its UBER rating of 1.0E-17 indicates an extremely low probability of unrecoverable bit errors, supporting high data integrity expectations for business-critical storage environments.
1. The PCIe Gen4 x4 interface with NVMe 1.4 unlocks full host-bandwidth efficiency, helping data-intensive platforms move large datasets and virtualized workloads with less I/O bottlenecking.
2. Its sequential read performance is built for rapid bulk data access, shortening database restore windows, analytics scans, and large-model load times in enterprise servers.
3. The strong random read capability supports highly parallel transaction processing, allowing more VMs, indexes, and user queries to be served with consistently fast response.
4. A 1 DWPD endurance rating gives enterprises the confidence to run steady daily write activity across the warranty period without overprovisioning for reliability.
5. Samsung V6 128-layer TLC NAND and a typical latency of 85 µs combine density, stability, and responsiveness, making the drive well suited for latency-sensitive cloud and mixed-workload environments.
For MPN MZQL2960HCJR-00W07 (960 GB), the nearest lower capacity in the same family is 480 GB, and the nearest higher capacity is 1.92 TB. At 960 GB, this SSD sits at the sweet spot of the product stack. Compared with the 480 GB model, it gives meaningfully more headroom for OS images, application growth, logs, and overprovisioning flexibility, reducing early capacity pressure in mixed enterprise workloads. Compared with the 1.92 TB option, it preserves nearly the same enterprise-class sequential and random performance while offering a more efficient cost profile per deployed node. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for about 40 to 60 virtual machines.
Q: Is MZQL2960HCJR-00W07 suitable for a write-heavy database server?
A: It can support mixed-use database workloads, but for truly write-heavy database servers, 1 DWPD may be limiting. We generally recommend evaluating sustained write volume and considering higher-endurance models if write intensity is consistently high.
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 throughout its warranty period. Its 1,752 TBW rating confirms solid endurance for enterprise mixed workloads.
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 and supporting storage reliability in enterprise environments.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 1 or RAID 10 is typically preferred for databases due to better redundancy and performance, while RAID 5 or 6 suits capacity-focused deployments.