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| Brand | Samsung |
|---|---|
| Model | PM1645 |
| Capacity | 1.6 TB |
| Usage Class | Mixed Use |
| 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 | 3 |
| Total Bytes Written | 8760 TBW |
| Sequential Read | 2300 MB/s |
|---|---|
| Sequential Write | 1900 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 130000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT1T6HEJQ-00007 |
|---|
Compared with the previous-generation MZILT1T6HEJQ-00007, the MZ-ILT1T6A PM1645 upgrades to a newer Samsung V-NAND 3D TLC platform and delivers a stronger 12Gb/s SAS performance envelope of up to 2300/1900 MB/s and 400,000/130,000 IOPS, making it a more capable fit for latency-sensitive enterprise arrays. Its 3 DWPD endurance and 8760 TBW rating give this 1.6 TB model a distinct advantage for write-intensive virtualization, OLTP, and mixed database workloads where sustained performance and lifecycle predictability matter more than raw capacity.
With an endurance rating of 8,760 TBW and 3 DWPD, the MZ-ILT1T6A is built for sustained write-intensive enterprise workloads over its full service life. In practical terms, for typical system-disk and mixed business application usage, this level of endurance provides long-term headroom and can support stable operation for many years without endurance concerns. The MZ-ILT1T6A also includes enterprise-grade reliability safeguards such as power loss protection (PLP), which helps prevent in-flight data loss and protects metadata integrity during unexpected power interruptions. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low probability of uncorrectable bit errors and strong overall reliability, giving procurement teams greater confidence for business-critical deployments.
1. The SAS 12Gb/s interface with 2300 MB/s sequential read bandwidth enables fast bulk data streaming, helping enterprise arrays accelerate backup, restore, and large-dataset scan operations without disrupting shared storage workflows.
2. Delivering 400,000 K IOPS in random reads, this drive is built for transaction-heavy databases and virtualized environments where dense small-block access must stay responsive under peak concurrency.
3. With a 3 DWPD endurance rating, the SSD can sustain sustained daily write pressure in mixed-use enterprise workloads, reducing replacement frequency and lowering lifecycle risk in always-on deployments.
4. Samsung V-NAND 3D TLC provides a strong balance of capacity, power efficiency, and write durability, making it well suited for mainstream enterprise storage tiers that need predictable performance at scale.
5. A typical latency of 100 µs helps minimize application wait time, improving consistency for latency-sensitive services such as OLTP systems, metadata operations, and real-time analytics.
Lower capacity: 800 GB Higher capacity: 3.2 TB At 1.6 TB, the MZ-ILT1T6A sits in the sweet spot of the series. Compared with the 800 GB model, it gives meaningfully more headroom for OS images, logs, snapshots, and steady data growth, reducing the risk of early capacity pressure. Compared with the 3.2 TB option, it preserves nearly the same enterprise-class read/write and random IOPS profile while keeping acquisition cost and stranded capacity better controlled. In practice, it is a strong fit for mid-sized virtualization, such as a cluster supporting around 40 to 60 mixed business VMs.
Q: Is MZ-ILT1T6A suitable for a write-heavy database server?
A: Yes. With 3 DWPD endurance, 8760 TBW, SAS 12Gb/s connectivity, and low 100 µs typical latency, the MZ-ILT1T6A is well suited for write-intensive database and enterprise transactional workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 3 full drive writes per day. For a 1.6 TB SSD, that equals about 4.8 TB of writes daily, aligned with its total 8760 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, reducing corruption risk and improving reliability for enterprise storage and database environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for performance-critical database workloads, as it balances redundancy and write performance. For capacity-focused deployments, RAID 5 or RAID 6 may also be considered.