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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 15.36TB |
| Usage Class | Enterprise |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3bit MLC (TLC) |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 28032 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1700 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 50000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS15THMLH |
|---|
The Samsung PM1643 (MZILT15THMLA-00007) brings a clear generational step over MZILS15THMLH, combining 15.36TB of capacity with up to 2100/1700 MB/s sequential performance and 400K/50K IOPS to deliver higher-density, faster SAS 12Gb/s storage for enterprise arrays. Its standout value is pairing Samsung V-NAND 3bit MLC (TLC) efficiency with enterprise endurance of 1 DWPD and 28,032 TBW, making it a stronger fit than the prior generation for capacity-optimized virtualization, database, and mixed-read server workloads.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZILT15THMLA-00007 is built to handle sustained enterprise write workloads over its full service life. In typical deployment scenarios, this level of endurance is more than sufficient for long-term use as a stable system or application drive, giving buyers confidence in consistent operation under daily write activity. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of uncorrectable read errors and supports dependable operation in business-critical environments.
1. The dual-port SAS interface integrates cleanly into mission-critical storage arrays, providing enterprise-grade availability and predictable performance under failover conditions.
2. Its strong sequential read capability accelerates backup restores, analytics scans, and large dataset streaming for data-intensive enterprise workloads.
3. The high random read performance enables dense virtualization, fast database lookups, and responsive transactional applications even under heavy concurrency.
4. With an endurance profile suited to one full drive rewrite per day, it fits mixed-use enterprise environments that need reliable daily write capacity without overpaying for write-intensive media.
5. Samsung’s 3-bit V-NAND is optimized to balance cost efficiency, capacity density, and low typical latency, helping deliver responsive service levels in read-heavy business platforms.
Lower capacity reference: 7.68TB Higher capacity reference: 30.72TB At 15.36TB, this SSD sits in the sweet spot of the family. Compared with the 7.68TB model, it offers much better headroom for data growth, higher VM density, and fewer drive slots consumed, while keeping the same enterprise-class performance profile. Compared with the 30.72TB version, it delivers a more efficient balance of acquisition cost, usable capacity, and risk concentration per drive. In practice, 15.36TB is ideal for mid-scale virtualization clusters, high-density database tiers, or all-flash arrays serving roughly 150 to 250 mixed enterprise workloads.
Q: Is MZILT15THMLA-00007 suitable for a write-heavy database server?
A: It can support database workloads, but with 1 DWPD it is better suited for mixed-use rather than highly write-intensive environments. For sustained heavy writes, a higher-endurance enterprise SSD is recommended.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can handle one full 15.36TB drive write per day throughout its warranty period, aligned with its 28,032TB total bytes written 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 protects mapping tables during sudden outages, which is essential for enterprise reliability, data integrity, and storage consistency.
Q: What RAID level is recommended for this SSD?
A: For most enterprise deployments, RAID 10 is recommended for the best balance of performance and redundancy. If capacity efficiency is more important, RAID 5 or RAID 6 may also be considered.