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| Brand | Samsung |
|---|---|
| Model | PM1643a |
| Capacity | 15.36 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 28032 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1800 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 50000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-ILT15T2 |
|---|
Compared with the earlier MZ-ILT15T2, the Samsung PM1643a (MZ-ILT15TC) moves to a newer V-NAND TLC generation, delivering a stronger balance of capacity, endurance, and SAS performance with 15.36TB, 1 DWPD, and 28,032TBW in the same 12Gb/s enterprise tier. With up to 2100/1800 MB/s and 400K/50K IOPS, it is a particularly strong fit for capacity-dense transactional databases, virtualization clusters, and read-heavy analytics where predictable SAS latency and high rack-level storage density matter.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZ-ILT15TC is built to sustain heavy daily write workloads throughout its service life. In typical enterprise use, this level of endurance means it can comfortably serve as a long-term system or application drive for many years without endurance becoming a practical concern. The MZ-ILT15TC also includes enterprise-class reliability protections such as power loss protection (PLP), which helps preserve in-flight data and prevent metadata corruption during unexpected power interruptions. Its ultra-low UBER of 1.0E-17, combined with a 2 million hour MTBF, indicates a very high standard of data integrity and operational stability that supports confident deployment in business-critical environments.
1. The SAS 12Gb/s interface ensures broad compatibility with dual-controller enterprise storage platforms, making the drive easy to integrate into mission-critical servers and legacy SAS backplanes without redesign.
2. With up to 2100 MB/s sequential read performance, this SSD accelerates large-file access such as database backups, media streaming, and analytics dataset loading, helping reduce batch processing windows.
3. Delivering 400,000K random read IOPS with a typical latency of 110 µs, it keeps transaction-heavy applications highly responsive under concurrent access, which is critical for virtualization, OLTP, and metadata-intensive workloads.
4. Rated at 1 DWPD, the drive is well suited for mixed-use enterprise environments that require dependable day-after-day write capability without overpaying for extreme endurance tiers.
5. Samsung V-NAND TLC provides an effective balance of density, power efficiency, and reliability, enabling cost-efficient scale-out storage for business-critical applications.
Lower capacity reference: 7.68 TB Higher capacity reference: 30.72 TB Capacity positioning analysis: Within this enterprise SSD family, the 15.36 TB model sits in the sweet spot. Versus the 7.68 TB option, it gives meaningfully more headroom for data growth, VM sprawl, and longer refresh cycles without changing expected enterprise-class throughput or IOPS behavior. Versus the 30.72 TB version, it typically delivers a better balance of acquisition cost, usable density, and risk concentration per drive. It is especially well suited for mid-scale virtualization clusters, such as shared storage tiers supporting about 150 to 250 mixed-workload virtual desktops or application instances.
Q: Is MZ-ILT15TC suitable for a write-heavy database server?
A: It can support mixed or moderate write database workloads, but for truly write-heavy database servers, 1 DWPD may be limiting. We usually recommend higher-endurance enterprise SSDs for sustained intensive writes.
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 handle one full 15.36 TB drive write per day over its warranty period, aligned with its 28,032 TBW endurance specification.
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 unexpected outages, which is critical for enterprise storage integrity, consistency, and reducing corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for performance-sensitive enterprise workloads, especially databases. If capacity efficiency is more important, RAID 5 or RAID 6 may also be considered, depending on write patterns.