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| Brand | Samsung |
|---|---|
| Model | PM1643a |
| Capacity | 1.92 TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12.0 Gbps |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 3504 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1800 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 400000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-V8P1T0BW |
|---|
The Samsung PM1643a (MZILT1T9HBJRAD4) delivers a clear enterprise-generation advantage over MZ-V8P1T0BW by moving to a dual-port SAS 12.0 Gbps platform and raising endurance to 1 DWPD / 3,504 TBW, making it far better suited for 24/7 mission-critical deployments with high-availability requirements. With 2,100/1,800 MB/s sequential throughput and 400,000/400,000 IOPS random performance, this 1.92 TB V-NAND TLC SSD is a strong fit for transactional databases, virtualization clusters, and shared storage arrays that need balanced latency, serviceability, and write endurance.
With an endurance rating of 3504 TBW and 1 DWPD, the MZILT1T9HBJRAD4 is designed to handle the equivalent of writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical enterprise boot, system, and mixed read/write workloads. In practical terms, for common OS, application, and virtualization usage, this level of endurance provides long-term headroom and can support many years of stable operation without endurance becoming a concern. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its UBER rating of 1.0E-17, together with a 2 million hour MTBF, reflects a very low probability of unrecoverable bit errors and a design built for dependable operation in business-critical environments.
1. The SAS 12.0 Gbps interface, paired with 2100 MB/s sequential read speed, accelerates large backup restores, analytics scans, and media streaming in dual-port enterprise storage environments.
2. With 400,000 K IOPS random read performance, this SSD sustains fast response under heavily concurrent VM, database, and metadata lookup workloads.
3. A 1 DWPD endurance rating makes it a solid fit for read-centric enterprise applications that need predictable lifespan under steady daily rewrite cycles.
4. Samsung V-NAND 3-bit TLC balances capacity, power efficiency, and cost, giving data centers a practical flash tier for scale-out storage and mainstream server workloads.
5. The 120 µs typical latency helps reduce application wait time, improving transaction consistency and user experience in latency-sensitive business systems.
Lower capacity: 960 GB Higher capacity: 3.84 TB In this series, 1.92 TB is the practical sweet spot. Compared with the 960 GB model, it gives much better headroom for OS images, application data, logs, and growth, reducing early capacity pressure without changing the familiar enterprise-class performance profile. Compared with the 3.84 TB version, it usually delivers the best balance of acquisition cost, usable capacity, and fleet-wide deployment efficiency. This makes 1.92 TB especially well suited for mid-scale virtualization clusters, database read replicas, or a 12 to 20-node application platform needing predictable SSD performance.
Q: Is MZILT1T9HBJRAD4 suitable for a write-heavy database server?
A: MZILT1T9HBJRAD4 is better suited for mixed-use or read-focused enterprise workloads. With 1 DWPD and 3504 TBW, it can handle steady writes, but not highly write-intensive database environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated at 1 DWPD, meaning it can sustain one full 1.92 TB drive write per day throughout its warranty period, aligned with its 3504 TB total 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 sudden power failure, which is critical for data integrity, consistency, and enterprise system reliability.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive database or virtualization environments, offering strong read/write performance, redundancy, and faster rebuilds than parity-based RAID configurations.