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| Brand | Samsung |
|---|---|
| Model | PM1723b |
| Capacity | 1.92TB |
| Usage Class | Enterprise |
| Host Interface | NVMe |
|---|---|
| Total Interface Bandwidth | 32 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | TLC V-NAND |
|---|---|
| Drive Writes Per Day | 3 |
| Total Bytes Written | 10512 TBW |
| Sequential Read | 3300 MB/s |
|---|---|
| Sequential Write | 2100 MB/s |
| Random Read IOPS | 800000 |
| Random Write IOPS | 95000 |
| Average Latency | 90 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-WLL1T9A |
|---|
Compared with the previous-generation MZ-WLL1T9A, the MZ-WLL1T9B PM1723b delivers a more compelling balance of performance and endurance, combining up to 3,300/2,100 MB/s throughput with 800,000/95,000 IOPS while maintaining enterprise-grade 3 DWPD and 10,512 TBW. Built on TLC V-NAND, this 1.92TB NVMe SSD is a strong fit for virtualized infrastructure, OLTP databases, and mixed read/write server workloads that need higher sustained responsiveness without stepping up to a higher endurance class.
With an endurance rating of 10,512 TBW and 3 DWPD, the MZ-WLL1T9B is built for sustained enterprise write-intensive workloads over its service life. In practical terms, for typical OS, application, and mixed server workloads, this level of endurance means the drive can comfortably serve as a system or business-critical storage drive for many years without endurance becoming a concern. Its enterprise reliability is further strengthened by power-loss protection (PLP), which helps preserve in-flight data and metadata if power is suddenly interrupted, reducing the risk of corruption and unplanned recovery events. Combined with an ultra-low UBER of 1.0E-17 and a 2 million-hour MTBF, this drive is designed to deliver highly dependable data integrity and stable long-term operation in demanding environments.
1. The NVMe interface and strong sequential throughput accelerate large-file movement, backup recovery, and VM image loading in performance-critical enterprise environments.
2. Its high random-read performance keeps databases, virtual desktops, and heavily consolidated virtual machines responsive during intense small-block access.
3. A write endurance rating built for multiple full-drive rewrites per day supports sustained logging, caching, and transactional workloads across the service life of the drive.
4. TLC V-NAND provides an effective balance of capacity, efficiency, and enterprise reliability, enabling cost-conscious scaling without compromising consistency.
5. Very low typical latency helps reduce application response time and stabilize service-level performance for real-time analytics and latency-sensitive storage tiers.
Lower capacity: 960GB Higher capacity: 3.84TB The 1.92TB MZ-WLL1T9B sits in the sweet spot of the series. Compared with the 960GB model, it provides meaningfully better headroom for OS images, application growth, logs, and overprovisioning, reducing early capacity pressure in production. Compared with the 3.84TB option, it keeps acquisition cost and replacement budget under tighter control while delivering essentially the same enterprise-class sequential throughput and random IOPS profile. This makes 1.92TB especially well suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for about 40-60 mixed-workload virtual machines.
Q: Is MZ-WLL1T9B suitable for a write-heavy database server?
A: Yes. With 3 DWPD endurance, 10,512 TBW, TLC V-NAND, and 90 µs typical latency, MZ-WLL1T9B is well suited for write-intensive database and enterprise server workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 3 DWPD, meaning it can handle about three full 1.92TB drive writes per day throughout its warranty period, consistent with its 10,512 TBW specification.
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 maintaining data integrity and reducing corruption risks in servers.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 10 is typically preferred for database workloads, offering strong performance, redundancy, and faster rebuilds than parity-based RAID configurations.