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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 3.84 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1700 MB/s |
| Random Read IOPS | 380000 |
| Random Write IOPS | 40000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT3T8HALE-00007 |
|---|
Compared with MZILT3T8HALE-00007, the PM1643 (MZILT3T8HALS-00AHI) is a stronger-generation 3.84 TB SAS 12Gb/s SSD that pairs Samsung V-NAND TLC with 7,008 TBW endurance and up to 380K/40K random IOPS for a more balanced enterprise performance profile. It is especially well-suited for mixed read/write workloads such as virtualization, database logging, and high-availability storage tiers where sustained throughput and endurance matter more than raw consumer-style peak speed.
With an endurance rating of 7008 TBW and 1 DWPD, the MZILT3T8HALS-00AHI is designed to handle substantial daily write volumes over its service life, making it well suited for typical enterprise and mixed-use workloads. In practical terms, for lighter-duty roles such as an OS or boot drive, this level of endurance provides ample headroom for many years of stable operation with minimal wear concerns. On the reliability side, built-in power loss protection (PLP) helps preserve in-flight data and maintain metadata integrity during unexpected power interruptions, which is especially important in server and storage environments. Its enterprise-class UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low likelihood of uncorrectable bit errors and supports dependable long-term deployment.
1. The SAS 12Gb/s interface ensures broad compatibility with dual-port enterprise backplanes, enabling high-availability storage designs and straightforward integration into mission-critical servers.
2. With strong sequential read performance, this drive accelerates large-block workloads such as database backup, media streaming, and analytics scans, reducing time-to-data for bandwidth-heavy applications.
3. Its high random read capability helps virtualized environments and OLTP databases sustain fast access to small, scattered data blocks under heavy concurrent user activity.
4. Built on Samsung V-NAND TLC and rated for 1 DWPD, it delivers a balanced mix of endurance, capacity efficiency, and predictable lifecycle cost for read-intensive enterprise deployments.
5. The low typical latency improves application responsiveness, helping latency-sensitive services like real-time transaction processing and metadata access maintain consistent QoS under load.
Lower capacity: 1.92 TB Higher capacity: 7.68 TB In this series, the 3.84 TB model is the practical sweet spot. Compared with the 1.92 TB version, it offers noticeably better headroom for data growth, denser VM placement, and longer refresh flexibility without changing the platform profile. Compared with the 7.68 TB option, it usually delivers the best balance of acquisition cost, usable capacity, and enterprise-grade performance consistency, since sequential throughput and random IOPS remain broadly similar across mainstream capacities. It is especially well suited for mid-sized virtualization clusters, mixed database nodes, or read-intensive analytics servers.
Q: Is MZILT3T8HALS-00AHI suitable for a write-heavy database server?
A: It can support mixed or moderate write database workloads, but it is not ideal for highly write-heavy servers. With 1 DWPD and TLC NAND, it is better suited for read-intensive or balanced enterprise applications.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can sustain one full 3.84 TB drive write per day during its warranty period, aligned with its total endurance rating of 7008 TBW.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP is critical because it helps preserve in-flight data and metadata during sudden power failure, reducing corruption risk and improving enterprise data integrity.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your workload. RAID 10 is preferred for databases requiring strong performance and redundancy, while RAID 5 or RAID 6 may suit capacity-focused, read-heavy environments.