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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 MZILT15THMLA-00007, the PM1643 MZILT15THMLA is the stronger refresh choice because it keeps seamless SAS 12Gb/s enterprise integration while moving to a mature 15.36 TB Samsung V-NAND 3D TLC platform with 28,032 TBW endurance for longer, lower-touch deployment. Its standout value in the 12Gb SAS class is combining very high per-drive capacity with balanced 2100/1700 MB/s throughput and 400K/50K IOPS, letting architects increase rack density and reduce drive count in database, virtualization, and capacity-heavy shared storage tiers.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZILT15THMLA is designed to sustain full-drive writes every day across its warranty period, making it well suited for steady enterprise workloads. In typical real-world use, this level of write endurance is far beyond what is required for an OS or boot drive and provides long-term confidence even in write-active server environments. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is unexpectedly interrupted. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low likelihood of uncorrectable bit errors and strong long-term operational dependability for business-critical storage deployments.
1. The SAS 12Gb/s interface provides dual-port enterprise connectivity and broad storage-array compatibility, enabling high-availability deployments with predictable performance under failover conditions.
2. With 2100 MB/s sequential read speed, the drive accelerates large-block data access such as backup restores, analytics scans, and virtual machine image loading.
3. Delivering 400,000 random read IOPS, it sustains fast response for heavily virtualized databases and mixed-user transactional workloads where queue depth spikes are common.
4. Rated at 1 DWPD, the drive is well suited for read-centric enterprise applications that need dependable day-after-day write tolerance without overpaying for higher-endurance media.
5. Built on Samsung V-NAND 3D TLC and paired with a typical latency of 115 µs, it balances enterprise-grade flash density with consistently quick access times for latency-sensitive business applications.
Lower capacity reference: 7.68 TB Higher capacity reference: 30.72 TB In this series, the 15.36 TB model sits at the sweet spot. Compared with 7.68 TB, it gives much more headroom for data growth, denser consolidation, and longer refresh cycles without changing the expected enterprise-class sequential and random I/O profile. Compared with 30.72 TB, it delivers a stronger balance of acquisition cost, usable capacity, and practical performance consistency, making budgeting easier at scale. It is especially well suited for mid-sized virtualization clusters, high-density database tiers, or shared storage pools serving roughly 40 to 60 mixed business application instances.
Q: Is MZILT15THMLA suitable for a write-heavy database server?
A: MZILT15THMLA can support mixed and moderate write-intensive database workloads, but with 1 DWPD it is not ideal for extremely write-heavy environments. It is better suited to enterprise applications balancing capacity, endurance, and latency.
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 sustain one full 15.36 TB drive write per day throughout its warranty period, backed by a total endurance rating of 28,032 TBW.
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 power failure, which is critical for maintaining data integrity, consistency, and enterprise application reliability.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on workload needs. RAID 10 is preferred for high-performance databases, while RAID 5 or RAID 6 can be used when balancing usable capacity, redundancy, and cost.