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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| 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 | 1700 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 50000 |
| 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 earlier MZILT15THMLA-00007, the MZ-ILT15T0 PM1643 refreshes Samsung’s 12Gb/s SAS enterprise tier with a 15.36 TB capacity point, 28,032 TBW endurance at 1 DWPD, and performance up to 2,100/1,700 MB/s with 400,000/50,000 random read/write IOPS. It is a strong fit for capacity-dense transactional databases, virtualized server pools, and mixed-read enterprise storage arrays that need the proven compatibility of SAS together with higher usable density and sustained TLC V-NAND efficiency in the same class.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZ-ILT15T0 is designed to handle writing its full capacity once per day throughout its rated service life, which is far beyond the write volume of typical OS, boot, and general server workloads. In practical terms, under normal enterprise system-disk or read-heavy application use, this level of endurance provides long-term peace of mind and can comfortably support many years of operation without endurance becoming a concern. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protects metadata integrity if power is suddenly interrupted, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, meaning the drive is engineered for very high data integrity in business-critical environments.
1. The SAS 12Gb/s interface provides dual-port, enterprise-grade connectivity that improves high-availability storage design and simplifies integration into mission-critical server and array environments.
2. Its strong sequential read performance accelerates bulk data access, helping analytics platforms, media repositories, and backup recovery jobs finish large-file workloads faster.
3. The high random read capability enables databases, virtualized infrastructure, and transaction-heavy applications to serve more concurrent requests with consistently responsive performance.
4. With 1 DWPD endurance built on Samsung V-NAND 3D TLC, this drive offers a balanced mix of write durability, capacity efficiency, and cost control for always-on enterprise workloads.
5. The low typical latency helps reduce storage response time, supporting faster application behavior and more predictable QoS in latency-sensitive business systems.
Lower capacity reference: 7.68 TB Higher capacity reference: 30.72 TB Capacity positioning analysis: Within this enterprise SSD family, 15.36 TB is the practical sweet spot. Compared with 7.68 TB, it offers much better headroom for data growth, higher VM density, and fewer drives needed per node, which helps simplify storage planning. Compared with 30.72 TB, it usually delivers a more attractive balance of acquisition cost, usable capacity, and enterprise-class performance consistency, while keeping sequential throughput and random IOPS in the same general tier. It is especially well suited for mid-scale virtualization clusters, such as supporting roughly 60 to 90 mixed-workload virtual machines per storage pool.
Q: Is MZ-ILT15T0 suitable for a write-heavy database server?
A: MZ-ILT15T0 can support enterprise database workloads, but with 1 DWPD it is better suited to mixed or moderate write-intensive environments rather than extremely write-heavy, high-churn transactional databases.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 1 full drive write per day. For a 15.36 TB SSD, that equals about 15.36 TB daily, aligning with 28,032 TBW across roughly five years.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps protect in-flight data and internal mapping tables during sudden power failure, reducing corruption risk and improving data integrity.
Q: What RAID level is recommended for this SSD?
A: For database and latency-sensitive applications, RAID 10 is generally recommended because it provides strong performance, redundancy, and faster rebuilds. RAID 5 or 6 is better when usable capacity matters more.