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| Brand | Samsung |
|---|---|
| Model | PM963 |
| Capacity | 960 GB |
| Usage Class | Read Intensive |
| Host Interface | PCIe 3.0 x4 |
|---|---|
| Total Interface Bandwidth | 8 Gb/s |
| Form Factor | U.2 (2.5") |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 1366 TBW |
| Sequential Read | 2000 MB/s |
|---|---|
| Sequential Write | 1200 MB/s |
| Random Read IOPS | 430000 |
| Random Write IOPS | 40000 |
| Average Latency | 90 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KH480HAHQ |
|---|
Compared with the MZ7KH480HAHQ, the PM963 MZ-QLW9600 moves from a legacy SATA-class design to PCIe 3.0 x4 NVMe, doubling capacity to 960 GB while delivering up to 2,000/1,200 MB/s and 430,000/40,000 IOPS for a clear generational jump in throughput and queue-depth scalability. Its 1.3 DWPD and 1,366 TBW, combined with Samsung V-NAND 3-bit TLC, make it a stronger fit than prior-generation enterprise SSDs for read-intensive virtualization, cloud boot, and scale-out storage tiers that need higher performance per slot without overbuying write endurance.
With an endurance rating of 1366 TBW and 1.3 DWPD, the MZ-QLW9600 is built to handle sustained daily write activity well beyond typical OS, application, and general business data workloads. In practical terms, under common system-drive or read-intensive enterprise usage, this level of endurance supports many years of stable operation and can be used with confidence as a long-life boot or infrastructure drive. The MZ-QLW9600 also includes power-loss protection (PLP), which helps preserve in-flight data and mapping information during unexpected power interruptions, reducing the risk of corruption and improving service continuity. Its enterprise-class UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of unrecoverable read errors and strong long-term reliability for business-critical environments.
1. The PCIe 3.0 x4 interface, paired with strong sequential read bandwidth, enables rapid dataset streaming and shortens backup, restore, and analytics job windows in enterprise servers.
2. With up to 430,000 random read IOPS, this drive keeps virtualized databases, metadata-heavy workloads, and high-concurrency applications highly responsive under mixed access patterns.
3. A 1.3 DWPD endurance rating provides the write tolerance needed for always-on business workloads, helping IT teams deploy it confidently in read-intensive to mixed-use environments over its service life.
4. Samsung V-NAND 3-bit TLC balances enterprise-class capacity efficiency with predictable performance, making it a cost-effective choice for scaling cloud storage and mainstream data center tiers.
5. A typical latency of 90 µs helps reduce transaction wait time and tail-latency impact, supporting faster query response and steadier QoS for latency-sensitive enterprise applications.
Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB In this SSD family, the 960 GB model sits at a practical sweet spot. Compared with the 480 GB version, it offers much better headroom for OS images, application binaries, logs, and data growth, reducing early capacity pressure in always-on enterprise environments. Compared with the 1.92 TB option, it keeps acquisition cost and fleet-wide replacement budgets under tighter control while delivering broadly similar sequential and random performance. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 general-purpose virtual machines.
Q: Is MZ-QLW9600 suitable for a write-heavy database server?
A: Yes, it can support moderately write-intensive database workloads. With 1.3 DWPD, 1366 TBW, PCIe 3.0 x4, and 90 µs latency, it fits enterprise servers needing balanced endurance and performance.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: The MZ-QLW9600 is rated for 1.3 full drive writes per day over its warranty period. For a 960 GB SSD, that equals about 1.25 TB of writes daily.
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 power failure, which is critical for maintaining data integrity and reducing corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 1, RAID 10, or RAID 5/6 may be selected depending on workload priorities. For databases and virtualization, RAID 10 is typically recommended for stronger performance, redundancy, and rebuild efficiency.