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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 3.84TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12G |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5-inch |
|---|
| NAND Flash | Samsung V-NAND TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1700 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 40000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT3T8HMLF |
|---|
The Samsung PM1643 MZILT3T8HALS-00AC3 stands out in the 3.84TB SAS 12G class by pairing Samsung V-NAND TLC with 2100/1700 MB/s sequential performance, 400,000/40,000 IOPS, and 7008 TBW, making it a strong fit for enterprise virtualization, database, and read-heavy transactional workloads that still require predictable write endurance. Compared with the earlier MZILT3T8HMLF, this PM1643 variant delivers a clear generation step in usable throughput and enterprise endurance density, giving architects more performance per drive bay while retaining the 1 DWPD profile needed for 24×7 datacenter deployment.
With an endurance rating of 7,008 TBW, the MZILT3T8HALS-00AC3 is designed to handle roughly 7 petabytes of total writes, which is far beyond the write volume of a typical OS, application, or read-intensive server boot drive. In practical terms, under normal enterprise system-disk workloads, this level of endurance provides many years of comfortable operating headroom, and the 1 DWPD rating confirms it is built for consistent daily use. For enterprise reliability, built-in power loss protection (PLP) helps preserve data in flight during an unexpected power interruption, reducing the risk of corruption and improving system integrity. Its UBER rating of 1.0E-17 indicates an extremely low uncorrectable bit error rate, giving buyers added confidence in data accuracy and dependable long-term operation.
1. The SAS 12G interface, paired with strong sequential bandwidth, enables faster backup, restore, and large-dataset streaming in mission-critical enterprise storage arrays.
2. Its high random read capability helps virtualized databases and high-concurrency transactional workloads return small-block data quickly, improving overall application responsiveness.
3. A 1 DWPD endurance profile makes it a solid fit for mixed-use enterprise environments that need predictable lifespan under steady daily write pressure.
4. Samsung V-NAND TLC provides a balanced mix of capacity, power efficiency, and cost effectiveness for scale-out data center deployments.
5. The typical 100 µs latency supports consistently fast access times, helping reduce storage bottlenecks in latency-sensitive business applications.
Lower capacity reference: 1.92TB Higher capacity reference: 7.68TB Capacity positioning analysis: Within this enterprise SSD family, the 3.84TB model sits at the sweet spot. Compared with the 1.92TB option, it gives much better headroom for data growth, denser server configurations, and longer refresh cycles without changing the familiar enterprise-class performance profile. Compared with the 7.68TB version, it usually delivers a more attractive cost-per-deployment while avoiding overprovisioning in mainstream workloads. That makes 3.84TB an excellent fit for mid-scale virtualization clusters, database nodes, or hyperconverged infrastructure hosts that need balanced capacity, predictable latency, and efficient budget use.
Q: Is MZILT3T8HALS-00AC3 suitable for a write-heavy database server?
A: It can support mixed-use or moderately write-intensive database workloads, but with 1 DWPD, it is not the best choice for extremely write-heavy environments requiring higher endurance enterprise SSDs.
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 3.84TB drive write per day over its warranty period, aligned with its 7008TB 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 outages, which is critical for maintaining data integrity and system reliability in enterprise servers.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is generally recommended for this SSD in performance-sensitive and business-critical applications, as it balances redundancy and speed better than RAID 5 for enterprise database workloads.