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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 15.36 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | SAS 12.0 Gbps |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3-bit MLC |
|---|---|
| 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 | MZILT15THALA |
|---|
Compared with MZILT15THALA, the MZILT15THMLA is the later PM1643 revision, retaining the proven 15.36 TB SAS 12 Gb/s footprint while delivering a refreshed enterprise profile of 28,032 TBW endurance, 2100/1700 MB/s sequential throughput, and up to 400,000/50,000 IOPS. This makes it a stronger fit for capacity-dense virtualized databases, ERP, and mixed-read/write storage tiers where predictable SAS latency, high usable capacity, and long-life write endurance matter more than raw interface speed alone.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZILT15THMLA-000H4 is built to handle a full drive write per day across its warranty life, making it well suited for steady enterprise workloads and intensive 24/7 operation. In typical real-world use, this level of endurance is far beyond what a boot or system drive would consume, so procurement teams can expect long, stable service life with substantial write headroom. Its enterprise reliability profile is further strengthened by power loss protection (PLP), which helps preserve in-flight data and maintain metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. An UBER of 1.0E-17, together with a 2 million hour MTBF, reflects a very low unrecoverable bit error rate and robust long-term dependability, giving added confidence for business-critical storage deployments.
1. The SAS interface enables seamless drop-in deployment across dual-controller enterprise storage arrays, preserving high availability and operational compatibility in mission-critical environments.
2. Its strong sequential read performance accelerates backup restores, analytics scans, and large dataset retrieval, helping data-intensive applications clear bottlenecks faster.
3. The high random read capability sustains responsive performance for virtualized databases and mixed-workload servers where massive small-block access is the norm.
4. The enterprise endurance profile supports consistent daily full-drive rewrites, making it a reliable fit for always-on transactional platforms with predictable write pressure.
5. Built on Samsung V-NAND 3-bit MLC and tuned for low typical latency, it delivers a balanced mix of flash density, stable QoS, and fast response times for latency-sensitive business workloads.
Lower capacity reference: 7.68 TB Higher capacity reference: 30.72 TB The 15.36 TB option sits at the sweet spot of this enterprise SSD family. Compared with the 7.68 TB model, it gives much better headroom for data growth, denser server consolidation, and longer refresh cycles without changing the expected enterprise-class read/write or random IOPS profile. Compared with the 30.72 TB model, it typically delivers the best balance between usable capacity, acquisition cost, and performance consistency. It is especially well suited for medium-scale virtualization clusters, such as a 12 to 16-node platform hosting mixed databases, logs, and general VM workloads.
Q: Is MZILT15THMLA-000H4 suitable for a write-heavy database server?
A: It can support mixed or moderate write-intensive database workloads, but for truly write-heavy servers, 1 DWPD may be limiting. We generally recommend evaluating write volume carefully before deployment.
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 throughout its warranty period, aligned with its 28,032 TB TBW 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 unexpected outages, which is critical for maintaining data integrity and preventing corruption in enterprise environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for performance-sensitive and write-intensive applications, while RAID 5 or RAID 6 may suit capacity-focused deployments. The best choice depends on your performance, protection, and rebuild requirements.