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| Brand | Samsung |
|---|---|
| Model | PM9D3a |
| Capacity | 960 GB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | PCIe Gen5 x4, NVMe 2.0 |
|---|---|
| Total Interface Bandwidth | 128 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V8 (236-layer) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 1752 TBW |
| Sequential Read | 8000 MB/s |
|---|---|
| Sequential Write | 2000 MB/s |
| Random Read IOPS | 1100000 |
| Random Write IOPS | 65000 |
| Average Latency | 65 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZQL2960HCJR-00A07 |
|---|
Compared with MZQL2960HCJR-00A07, the Samsung PM9D3a MZWL6960HFJA-00BW7 advances to a PCIe Gen5 x4, NVMe 2.0 platform with 236-layer V8 TLC, delivering up to 8,000 MB/s sequential read and 1.1M random read IOPS for a clear generational boost in host-side throughput and read latency sensitivity. At 960 GB, it is a strong fit for read-centric cloud boot, caching, and metadata-heavy service tiers that need Gen5 responsiveness while maintaining mainstream endurance at 1 DWPD and 1,752 TBW.
With an endurance rating of 1,752 TBW and 1 DWPD, this SSD is designed to handle full-drive writes every day across its warranty period, making it well suited for typical enterprise boot, system, and mixed-read workloads. In practical terms, under normal OS, application, and logging usage, it can serve reliably as a system drive for many years without endurance becoming a concern. This model also includes power loss protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is interrupted unexpectedly, reducing the risk of corruption and unplanned recovery events. Its enterprise-class UBER of 1.0E-17, together with a 2.5 million-hour MTBF, indicates a very low uncorrectable bit error rate and strong long-term operational reliability for business-critical environments.
1. The PCIe Gen5 x4 interface with NVMe 2.0 unlocks next-generation host bandwidth, helping enterprise platforms move large datasets faster and reduce storage bottlenecks in AI, analytics, and high-performance virtualization clusters.
2. With up to 8000 MB/s sequential read throughput, this SSD accelerates bulk data access, shortening application startup, database scan, and model-loading times in data-intensive servers.
3. Its 1,100,000 K random read IOPS capability enables consistently high responsiveness for mixed and metadata-heavy workloads such as OLTP databases, large-scale VMs, and real-time caching tiers.
4. A 1 DWPD endurance rating makes it well suited for read-centric enterprise deployments that still require predictable lifespan under continuous daily production use.
5. Built on Samsung V8 236-layer TLC NAND and delivering a typical latency of 65 µs, the drive combines dense flash efficiency with fast response time to support stable QoS in latency-sensitive cloud and enterprise applications.
For the Samsung MZWL6960HFJA-00BW7 960 GB enterprise SSD, the nearest practical reference points in the same family are 800 GB as the next lower capacity and 1.92 TB as the next higher capacity. At 960 GB, this drive sits in the sweet spot of the series. Compared with the 800 GB option, it gives noticeably more headroom for OS images, logs, metadata, and application growth without changing the expected enterprise-class read/write and IOPS profile. Compared with 1.92 TB, it preserves a stronger cost-per-node balance while still offering comfortable working space. It is especially well suited for medium-scale virtualization clusters, such as hosting boot and utility volumes for around 40 to 60 mixed-workload virtual machines.
Q: Is MZWL6960HFJA-00BW7 suitable for a write-heavy database server?
A: It can support mixed-use database workloads, but for strongly write-heavy servers, its 1 DWPD rating may be limiting. We generally recommend higher-endurance enterprise SSDs for sustained intensive write 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 sustain one full 960GB drive write per day throughout its warranty period, aligned with its 1752TB total bytes written endurance rating.
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 enterprise systems requiring data integrity, consistency, and reduced corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 1, 10, or 5 can be suitable depending on performance and redundancy goals. For business-critical workloads, RAID 10 is commonly preferred for stronger fault tolerance and consistent performance.