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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 3.84 TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12.0 Gbps |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 64-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1700 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 50000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT3T8HALS-00007 |
|---|
Compared with the previous-generation MZILT3T8HALS-00007, the Samsung PM1643 (MZ-ILT3T80) advances to 64-layer 3D TLC V-NAND and delivers up to 2100/1700 MB/s with 400,000/50,000 IOPS, giving enterprise SAS arrays higher performance density per drive slot. Its 3.84 TB capacity, 12 Gbps SAS interface, and 1 DWPD / 7008 TBW endurance make it a strong fit for virtualization clusters, transactional databases, and read-intensive shared storage that need a balanced upgrade in capacity, throughput, and lifecycle durability.
With an endurance rating of 7008 TBW and 1 DWPD, the MZ-ILT3T80 is designed to handle very heavy write activity over its service life, far beyond the needs of typical boot, OS, and business application workloads. In practical terms, for use as a system drive or general enterprise read/write storage, this level of endurance provides a very large write margin and supports long-term, worry-free operation under normal deployment conditions. The MZ-ILT3T80 also includes power loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving operational resilience. Its enterprise-class UBER of 1.0E-17, together with a 2 million-hour MTBF, indicates an extremely low probability of uncorrectable bit errors and a strong overall reliability profile for business-critical environments.
1. The SAS 12Gbps interface, paired with strong sequential read throughput, enables faster backup restores and large dataset streaming while preserving the dual-port reliability enterprise storage arrays depend on.
2. Its sequential read performance accelerates full-volume scans, VM image loading, and analytics jobs, helping reduce wait time for data-intensive enterprise workflows.
3. The high random read capability supports dense virtualization, OLTP databases, and metadata-heavy applications by sustaining responsive access under mixed multi-user workloads.
4. Rated for one full drive write per day, it offers a balanced endurance profile for read-centric enterprise environments that still require predictable lifespan under steady daily updates.
5. Built with Samsung V-NAND 64-layer 3D TLC and low typical latency, the drive combines mature flash efficiency with consistently quick response times for mission-critical applications.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this product family, the 3.84 TB model sits at the sweet spot for mainstream enterprise deployment. Compared with the 1.92 TB version, it offers much better headroom for VM growth, log retention, and application data without changing the expected read/write or random IOPS profile. Compared with the 7.68 TB option, it delivers a more efficient cost-per-drive while avoiding overprovisioning in mid-sized clusters. This makes 3.84 TB especially well suited for balanced virtualization hosts, database replicas, or 12 to 20 mixed-application servers in a typical enterprise rack.
Q: Is MZ-ILT3T80 suitable for a write-heavy database server?
A: MZ-ILT3T80 can support mixed or moderate write-intensive database workloads, but with 1 DWPD it is not ideal for extremely write-heavy environments. It is better suited for balanced enterprise applications requiring SAS reliability.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1 DWPD, meaning it can handle one full 3.84 TB drive write per day. Based on its 7008 TBW rating, that corresponds to approximately five years of endurance.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, MZ-ILT3T80 includes power loss protection. PLP helps preserve in-flight data and metadata during sudden power failure, reducing corruption risk and improving reliability in enterprise servers, storage arrays, and database systems.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on workload goals. RAID 10 is preferred for high-performance databases, while RAID 5 or RAID 6 may be used when balancing capacity, redundancy, and acceptable write overhead.