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| Brand | Samsung |
|---|---|
| Model | PM1655 |
| Capacity | 1.6 TB |
| Usage Class | Mixed Use |
| Host Interface | SAS 24.0 Gbps |
|---|---|
| Total Interface Bandwidth | 24 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 6th-Gen 128-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 3 |
| Total Bytes Written | 8760 TBW |
| Sequential Read | 4200 MB/s |
|---|---|
| Sequential Write | 3700 MB/s |
| Random Read IOPS | 800000 |
| Random Write IOPS | 210000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILG1T6HCJR-00007 |
|---|
The Samsung PM1655 MZILG1T6HCJRAD3 is a strong upgrade path from MZILG1T6HCJR-00007, moving to a SAS 24.0 Gbps, 6th-Gen 128-layer V-NAND platform that delivers up to 4,200/3,700 MB/s and 800K/210K IOPS for materially higher response density in the same 1.6 TB class. With 3 DWPD and 8,760 TBW, this revision stands out for mixed-read/write enterprise workloads where you need next-generation SAS bandwidth plus TLC endurance without stepping into a higher-cost write-intensive tier.
With an endurance rating of 8,760 TBW and 3 DWPD, the MZILG1T6HCJRAD3 is built to handle very heavy daily write activity throughout its service life. In practical terms, for typical server or OS-drive workloads, this level of endurance means the drive can be deployed with high confidence for many years without endurance becoming a concern. For enterprise reliability, integrated power-loss protection (PLP) helps safeguard in-flight data and mapping tables during unexpected power interruption, reducing the risk of corruption and unplanned downtime. Its UBER of 1.0E-17, together with a 2.5 million hour MTBF, reflects a highly reliable enterprise SSD platform designed for data integrity and stable long-term operation.
1. The SAS 24.0 Gbps interface, paired with 4200 MB/s sequential read performance, enables faster backup, restore, and large-dataset streaming in business-critical storage environments.
2. With 800,000 K IOPS random read capability, this drive sustains highly responsive access for virtualization, OLTP databases, and metadata-heavy enterprise workloads.
3. A 3 DWPD endurance rating supports intensive daily write activity over the service life of the SSD, making it well suited for mixed-use and write-active data center deployments.
4. Samsung V-NAND 6th-Gen 128-layer 3D TLC provides a strong balance of density, power efficiency, and reliability, helping enterprises scale capacity without sacrificing consistent performance.
5. The 85 µs typical latency helps reduce storage wait time, improving application responsiveness for latency-sensitive platforms such as real-time analytics and transactional systems.
Lower capacity reference: 800 GB Higher capacity reference: 3.2 TB The 1.6 TB model sits in the sweet spot of this SSD family. Compared with the 800 GB version, it offers much better space headroom for OS images, application growth, logs, and overprovisioning, reducing the risk of early capacity pressure. Compared with the 3.2 TB option, it usually delivers the best balance between acquisition cost, usable capacity, and enterprise-class performance consistency. This makes 1.6 TB especially well suited for mid-scale virtualization clusters, such as hosting system and application volumes for roughly 40 to 60 virtual machines.
Q: Is MZILG1T6HCJRAD3 suitable for a write-heavy database server?
A: Yes. With 3 DWPD endurance, 8760 TBW, 24G SAS, 85 µs typical latency, and enterprise Samsung 128-layer TLC V-NAND, it is well suited for write-intensive database workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 3 DWPD, meaning it can support about three full 1.6 TB drive writes per day throughout its warranty period, within the specified endurance limits.
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 databases and transactional enterprise systems.
Q: What RAID level is recommended for this SSD?
A: For most server deployments, RAID 10 is recommended for the best balance of performance, redundancy, and rebuild efficiency. RAID 1 or RAID 5 may also fit capacity-focused environments.