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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 960 GB |
| Usage Class | Enterprise/Read-Intensive |
| Host Interface | PCIe 4.0 x4, NVMe 1.4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | EDSFF E1.S (9.5mm) |
|---|
| NAND Flash | Samsung V6 (128L) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 1752 TBW |
| Sequential Read | 6800 MB/s |
|---|---|
| Sequential Write | 4000 MB/s |
| Random Read IOPS | 580000 |
| Random Write IOPS | 110000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ1LB960HAJQ |
|---|
Compared with MZ1LB960HAJQ, the MZ-1L29600 (PM9A3) upgrades to PCIe 4.0 x4/NVMe 1.4 and reaches up to 6,800/4,000 MB/s with 580K/110K IOPS, delivering a clear generational gain in bandwidth and write responsiveness for consolidation-heavy servers and scale-out storage nodes. At 960GB, its Samsung V6 (128L) TLC paired with 1 DWPD and 1,752 TBW gives a stronger balance of Gen4 performance and enterprise endurance than older 960GB-class NVMe drives, making it an excellent fit for boot, cache, and metadata tiers where latency consistency matters.
With an endurance rating of 1,752 TBW and 1 DWPD, the MZ-1L29600 is built to handle sustained daily write activity over its intended service life, making it more than sufficient for typical server boot, OS, logging, and general enterprise application workloads. In practical terms, under common system-disk usage patterns, this level of endurance supports long-term deployment with ample write headroom and low concern about wear-related replacement. For enterprise reliability, power loss protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving system recovery confidence. Its UBER of 1.0E-17, together with a 2 million hour MTBF, reflects a very low likelihood of unrecoverable bit errors and strong overall dependability for business-critical environments.
1. The PCIe 4.0 x4 interface with NVMe 1.4 unlocks host-side bandwidth efficient enough to accelerate data-intensive workloads such as AI model staging, real-time analytics, and dense VM environments.
2. Its high sequential read performance helps large databases, media assets, and backup images load noticeably faster, reducing wait time during bulk data access and recovery operations.
3. Strong random read capability enables the drive to sustain highly concurrent small-block requests, making it well suited for virtualized infrastructure, OLTP databases, and read-heavy cloud services.
4. With enterprise-class TLC endurance rated for one full drive write per day, it provides a balanced profile for mixed workloads that need dependable daily write capacity without overprovisioning for extreme write abuse.
5. Built on Samsung sixth-generation 128-layer TLC NAND and backed by very low typical latency, the drive delivers predictable responsiveness and stable QoS for latency-sensitive applications.
Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB Both neighboring capacities in the same enterprise SSD family typically deliver very similar sequential read/write throughput and random IOPS to the 960 GB model. At 960 GB, this drive sits in the sweet spot of the series. Compared with the 480 GB version, it offers much better headroom for OS images, application growth, logs, and overprovisioning flexibility. Compared with the 1.92 TB model, it usually delivers the best balance between acquisition cost, usable capacity, and steady enterprise performance. It is especially well suited for mid-scale virtualization, such as hosting boot and application volumes for about 40 to 60 general-purpose virtual machines.
Q: Is MZ-1L29600 suitable for a write-heavy database server?
A: Yes, it can support moderately write-intensive database workloads. With 1 DWPD, 1752 TBW, Samsung V6 128-layer TLC NAND, and low 85 µs latency, it fits enterprise database environments well.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: The rated endurance is 1 DWPD, meaning the 960 GB drive can be fully written once per day throughout its warranty period, within the specified 1752 TBW endurance limit.
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 unexpected power loss, reducing corruption risk and improving reliability in enterprise systems.
Q: What RAID level is recommended for this SSD?
A: RAID recommendation depends on your priority. RAID 1 is suitable for redundancy, RAID 10 for balanced performance and protection, and RAID 5 or 6 for higher usable capacity.