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| Brand | Samsung |
|---|---|
| Model | PM1655 |
| Capacity | 3.2 TB |
| Usage Class | Mixed Use |
| Host Interface | SAS 24Gb/s |
|---|---|
| Total Interface Bandwidth | 24 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 6th-Gen TLC |
|---|---|
| Drive Writes Per Day | 3 |
| Total Bytes Written | 17520 TBW |
| Sequential Read | 4300 MB/s |
|---|---|
| Sequential Write | 3200 MB/s |
| Random Read IOPS | 800000 |
| Random Write IOPS | 170000 |
| Average Latency | 95 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILG3T2HCLS-00AH3 |
|---|
The Samsung PM1655 MZ-ILG3T20 stands out as a 3.2TB 24Gb/s SAS SSD that pairs Samsung 6th-Gen V-NAND TLC with 4,300/3,200 MB/s sequential performance and up to 800K/170K IOPS, making it a strong fit for latency-sensitive virtualization, OLTP, and mixed enterprise workloads that still require 3 DWPD endurance. Compared with the previous MZILG3T2HCLS-00AH3 generation, it delivers a clear interface and performance uplift with higher SAS bandwidth, stronger sequential throughput, and a robust 17,520 TBW rating for longer-life deployment in write-intensive server environments.
With an endurance rating of 17,520 TBW and 3 DWPD, the MZ-ILG3T20 is built for sustained enterprise write workloads and can comfortably handle writing its full capacity three times per day throughout its rated service life. In typical deployment scenarios such as OS, virtualization, database, or mixed read/write server workloads, this level of endurance translates into long-term, worry-free operation with substantial write margin for continuous daily use. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and protects mapping tables during unexpected power interruptions, reducing the risk of corruption and unclean shutdown damage. Its UBER of 1.0E-17 and 2.5 million-hour MTBF indicate a very low probability of uncorrectable bit errors and strong overall dependability, making it a solid choice for business-critical storage environments.
1. The SAS 24Gb/s interface provides high-bandwidth, dual-port connectivity that strengthens storage availability and keeps mission-critical clusters running through path failover events.
2. With 4300 MB/s sequential read performance, the drive accelerates large-block workloads such as backup, media streaming, and fast dataset loading for analytics platforms.
3. Its 800K random-read IOPS capability helps databases, virtualization farms, and high-concurrency applications serve more transactions with less queue buildup.
4. Rated for 3 DWPD and built on Samsung 6th-Gen V-NAND TLC, it is engineered for write-intensive enterprise workloads that need a strong balance of endurance, capacity, and cost efficiency.
5. The 95 µs typical latency enables faster application response times, making it well suited for latency-sensitive environments like OLTP, real-time analytics, and performance-tier storage.
Lower capacity reference: 1.6 TB Higher capacity reference: 6.4 TB Capacity positioning analysis: In this enterprise SSD family, the 3.2 TB model sits in the practical sweet spot. Compared with the 1.6 TB version, it provides much better headroom for dataset growth, VM density, and overprovisioning flexibility without changing the expected enterprise-class read/write and random IOPS profile. Compared with the 6.4 TB option, it usually delivers a more balanced cost-per-drive while avoiding overbuying capacity for medium-scale deployments. It is especially well suited for a mid-sized virtualization cluster, such as hosting boot and application volumes for roughly 40 to 60 virtual machines.
Q: Is MZ-ILG3T20 suitable for a write-heavy database server?
A: Yes. With 3 DWPD endurance, 17,520 TBW, 24Gb/s SAS, and 95 µs typical latency, the MZ-ILG3T20 is well suited for write-intensive database, OLTP, and mixed-enterprise 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 3.2 TB SSD, that equals about 9.6 TB of writes daily across the standard warranty period.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps preserve in-flight data and metadata during unexpected power loss, reducing corruption risk and improving enterprise data integrity.
Q: What RAID level is recommended for this SSD?
A: RAID choice depends on workload and uptime goals. RAID 10 is typically recommended for write-heavy databases, while RAID 5 or 6 may fit capacity-focused environments with lower write intensity.