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| Brand | Samsung |
|---|---|
| Model | PM1645a |
| Capacity | 1.6TB |
| Usage Class | Mixed Use |
| Host Interface | SAS 12Gbps |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | V5 (9x-layer) TLC |
|---|---|
| Drive Writes Per Day | 3 |
| Total Bytes Written | 8760 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 2000 MB/s |
| Random Read IOPS | 440000 |
| Random Write IOPS | 80000 |
| Average Latency | 90 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-ILT1T6B |
|---|
The Samsung PM1645a (MZ-ILT1T6C) is a strong fit for mixed-read enterprise SAS environments such as virtualization clusters, database nodes, and transactional storage tiers, combining 1.6TB capacity with 12Gbps SAS, 2100/2000 MB/s throughput, and up to 440K/80K IOPS under a 3 DWPD endurance class. Compared with the previous MZ-ILT1T6B generation, it advances to V5 (9x-layer) TLC while maintaining a high 8,760 TBW rating, giving engineers a more modern SAS SSD platform with stronger performance density and sustained enterprise write durability.
With an endurance rating of 8,760 TBW and 3 DWPD, the MZ-ILT1T6C is built to handle very heavy write workloads throughout its service life. In typical enterprise or industrial use, this level of endurance means it can comfortably serve as a frequently written system or application drive for many years, giving buyers strong confidence in long-term durability. For reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect mapping tables if power is unexpectedly interrupted. Its ultra-low UBER of 1.0E-17, together with a 2 million hour MTBF, indicates enterprise-class data integrity and dependable operation in mission-critical environments.
1. The dual-port SAS interface provides the resilient, always-on connectivity enterprises rely on for shared storage shelves, while its strong streaming bandwidth helps accelerate backup, analytics, and large dataset movement.
2. Its high random-read capability enables databases, virtualization clusters, and transactional platforms to serve far more concurrent requests with less storage-side contention.
3. The endurance rating supports sustained daily rewrites over years of operation, making it well suited for mixed-use enterprise workloads such as logging, OLTP, and write-active virtualized environments.
4. Built on advanced TLC NAND, the drive balances capacity efficiency, predictable performance, and durability, giving data centers a cost-effective medium for scaling mainstream enterprise storage.
5. The low typical read latency helps reduce application response time and improves consistency for latency-sensitive workloads like real-time analytics, metadata access, and high-density VM hosting.
Reference capacities in the same series for MPN MZ-ILT1T6C (1.6TB): Lower capacity: 800GB Higher capacity: 3.2TB Capacity positioning analysis: Within this enterprise SSD family, 1.6TB is the practical sweet spot. Compared with the 800GB model, it gives much better headroom for VM growth, database expansion, log retention, and overprovisioning flexibility, reducing the risk of early capacity pressure. Compared with the 3.2TB option, it keeps acquisition cost and rack-level storage budgeting under tighter control while delivering essentially the same enterprise-class sequential and random performance profile. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 mixed-workload virtual machines.
Q: Is MZ-ILT1T6C suitable for a write-heavy database server?
A: Yes. With 3 DWPD endurance, 8760 TBW, SAS 12Gbps interface, and 90 µs typical latency, MZ-ILT1T6C is well suited for write-intensive database, logging, and transactional server 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 1.6TB SSD, that equals about 4.8TB of writes daily across the warranty period within specification.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. Power loss protection helps preserve in-flight data and metadata during unexpected outages, reducing corruption risk and improving reliability for enterprise and database environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is generally recommended for enterprise SSDs when performance and redundancy are both important. RAID 1 or RAID 5/6 may also fit, depending on capacity, fault tolerance, and workload.