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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 |
|---|
Compared with the previous MZILG1T6HCJR-00007, the MZILG1T6HCJR-00AD3 refreshes the PM1655 with 24.0 Gbps SAS and Samsung 6th-Gen 128-layer V-NAND, delivering up to 4,200/3,700 MB/s and 800K/210K IOPS to improve throughput and responsiveness in latency-sensitive enterprise arrays. Its 3 DWPD endurance and 8,760 TBW rating make this 1.6 TB model a strong fit for write-intensive OLTP databases, virtualization clusters, and tier-1 storage where consistent mixed-workload performance and SAS infrastructure compatibility matter more than raw capacity.
With an endurance rating of 8,760 TBW and 3 DWPD, the MZILG1T6HCJR-00AD3 is built to sustain very heavy daily write workloads over its service life. In typical enterprise use, this level of endurance means it can comfortably handle roles such as an operating system drive, boot volume, or frequently written application storage for many years without endurance becoming a practical concern. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and prevents metadata corruption if power is suddenly interrupted. Its UBER of 1.0E-17 indicates an extremely low probability of unrecoverable bit errors, supporting high data integrity and dependable operation in business-critical environments.
1. The SAS 24G interface, paired with strong sequential read bandwidth, enables faster full-dataset scans and backup restores in latency-sensitive enterprise storage arrays.
2. Its high random read capability sustains heavy VM, database, and metadata workloads with consistent responsiveness even under deep queue pressure.
3. A 3 DWPD endurance rating makes it well suited for write-intensive enterprise use cases such as OLTP, virtualization, and mixed-workload caching tiers.
4. Samsung 6th-Gen 128-layer 3D TLC V-NAND balances density, power efficiency, and reliability, helping data centers scale capacity without sacrificing enterprise-class performance stability.
5. The low typical latency helps reduce storage wait time for transactional applications, improving SLA consistency for real-time analytics and business-critical services.
Lower capacity: 800 GB Higher capacity: 3.2 TB At 1.6 TB, this SSD sits at the practical sweet spot in the series. Compared with the 800 GB model, it gives much better headroom for OS, logs, hot data, and growth buffers, reducing early capacity pressure in always-on enterprise environments. Compared with the 3.2 TB option, it keeps acquisition cost and $/IOPS efficiency more balanced while delivering essentially the same enterprise-class throughput and latency profile. It is especially well suited for mid-sized virtualization clusters, such as shared boot and application storage for about 40 to 60 general-purpose virtual machines.
Q: Is MZILG1T6HCJR-00AD3 suitable for a write-heavy database server?
A: Yes. With 3 DWPD, 8,760 TBW, low 85 µs typical latency, and Samsung 6th-Gen V-NAND TLC, this 1.6 TB SAS 24 Gbps SSD 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 for 3 full drive writes per day. For a 1.6 TB capacity, that equals about 4.8 TB of writes daily across its warranty term.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps protect in-flight data and metadata during unexpected power failure, reducing corruption risk and improving enterprise storage reliability.
Q: What RAID level is recommended for this SSD?
A: The best RAID level depends on your priority. RAID 10 is typically recommended for database workloads needing strong write performance and redundancy, while RAID 5 or 6 favors capacity efficiency.