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| Brand | Samsung |
|---|---|
| Model | PM1643a |
| Capacity | 15.36 TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 28032 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1800 MB/s |
| Random Read IOPS | 410000 |
| Random Write IOPS | 70000 |
| Average Latency | 115 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT15THMLA-00007 |
|---|
Compared with the previous-generation MZILT15THMLA-00007, the Samsung PM1643a MZILT15THALA delivers a clear generational step forward with a newer V-NAND 3D TLC architecture, combining 15.36TB capacity, 2,100/1,800 MB/s sequential performance, and up to 410,000/70,000 IOPS in the same 12Gb/s SAS class. For enterprise SAS deployments, its standout value is the rare balance of high density and 28,032 TBW endurance at 1 DWPD, making it a stronger fit than older models for capacity-heavy virtualization, scale-up database, and mixed-read enterprise storage tiers.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZILT15THALA is designed to handle writing its full capacity once per day across its warranted usage profile, which is more than sufficient for typical enterprise system, boot, caching, and mixed read/write workloads. In practical terms, this level of endurance means buyers can expect long-term, predictable service life under normal deployment conditions, with ample write headroom for demanding daily operation. As an enterprise-grade SSD, it 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 of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity and dependable operation in business-critical storage environments.
1. The SAS 12Gb/s interface paired with 2100 MB/s sequential read speed enables faster backup restores, analytics scans, and large database table loads in mission-critical enterprise storage environments.
2. With 410,000 K IOPS in random read performance, this SSD helps virtualized databases and high-concurrency applications sustain responsive service under heavy mixed-user demand.
3. A 1 DWPD endurance rating makes it well suited for enterprise workloads that require predictable daily full-drive writes without overprovisioning for unnecessary durability.
4. Samsung V-NAND 3D TLC provides a strong balance of capacity, efficiency, and cost, making it a practical choice for scaling business storage while maintaining enterprise-grade reliability.
5. A typical latency of 115 µs reduces application wait time, helping transactional systems deliver more consistent response times and smoother QoS in shared infrastructure.
Lower capacity: 7.68 TB Higher capacity: 30.72 TB Within this enterprise SSD family, the 15.36 TB model sits at the sweet spot. Compared with the 7.68 TB version, it gives much more headroom for data growth, denser server configurations, and longer refresh intervals before capacity becomes a constraint. Compared with the 30.72 TB option, it delivers a better balance of acquisition cost, usable performance, and deployment flexibility, while maintaining broadly similar sequential and random I/O behavior. It is especially well suited for mid-scale virtualization clusters, mixed database nodes, or all-flash storage pools serving around 150 to 250 business-critical workloads.
Q: Is MZILT15THALA suitable for a write-heavy database server?
A: MZILT15THALA is better suited for mixed or read-intensive enterprise workloads. With 1 DWPD endurance and 28,032 TBW, it can handle steady writes, but highly write-heavy databases may require higher-endurance 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 support one full 15.36 TB drive write per day throughout its warranty period, consistent with its total endurance rating of 28,032 TBW.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, MZILT15THALA includes power loss protection. PLP is critical because it helps preserve in-flight data and metadata during unexpected power failures, reducing corruption risk and improving reliability in enterprise environments.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your workload. RAID 10 is typically preferred for database and latency-sensitive applications, while RAID 5 or RAID 6 may suit capacity-focused environments with acceptable write overhead.