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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 3.84 TB |
| Usage Class | Mixed Use / Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3bit MLC |
|---|---|
| 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 | 40000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT3T8HALE-00007 |
|---|
The Samsung PM1643 3.84TB (MZILT3T8HALS-000D3) is a strong upgrade path from MZILT3T8HALE-00007, combining Samsung V-NAND 3bit MLC with 12Gb/s SAS to deliver 2100/1700 MB/s throughput, up to 400K/40K IOPS, and 7008 TBW in the same enterprise-friendly 1 DWPD class. Compared with the previous-generation drive, it offers a more balanced mix of capacity, sustained bandwidth, and endurance for virtualization clusters, transactional databases, and mixed-read/write server workloads where consistent SAS performance matters more than peak headline speed.
With an endurance rating of 7008 TBW and 1 DWPD, the MZILT3T8HALS-000D3 is designed to handle writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical enterprise system, boot, and mixed read/write application workloads. In practical terms, for common OS, virtualization, and business application use, this level of endurance supports long-term deployment with a strong margin for daily operation rather than concern over normal wear. For enterprise reliability, built-in power loss protection (PLP) helps preserve in-flight data and protects metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its UBER rating of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity expectations in business-critical environments, while the 2 million hour MTBF further reflects a robust design for continuous operation.
1. The 12Gb/s SAS interface, paired with strong sequential bandwidth, enables fast bulk data movement and dual-port high-availability deployment in mission-critical storage arrays.
2. Its 400K-class random read performance keeps databases, virtual machines, and metadata-heavy workloads highly responsive even under deep queue pressure.
3. A 1 DWPD endurance rating is well suited for read-centric enterprise applications, giving predictable lifespan and lowering replacement risk in always-on servers.
4. Samsung V-NAND 3bit MLC balances density, power efficiency, and enterprise-grade reliability, helping operators scale capacity without sacrificing platform stability.
5. Typical latency around 100 microseconds shortens response time for transactional workloads, improving QoS consistency for real-time analytics and customer-facing services.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this enterprise SSD family, the 3.84 TB model sits at the sweet spot of the lineup. Compared with the 1.92 TB version, it gives much better space headroom for data growth, snapshot retention, and denser server consolidation without changing the expected enterprise read/write or random IOPS profile. Compared with the 7.68 TB option, it delivers a more balanced acquisition cost, lower overprovisioning risk, and easier capacity planning while preserving near-identical mainstream performance. It is especially well suited for mid-scale virtualization clusters, mixed database nodes, or all-flash arrays serving about 40 to 60 business applications.
Q: Is MZILT3T8HALS-000D3 suitable for a write-heavy database server?
A: It can support mixed or moderate write database workloads, but with 1 DWPD it is not ideal for very write-heavy environments. For intensive database writes, a higher-endurance enterprise SSD is recommended.
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 throughout its warranty period, aligned with its 7008 TBW endurance specification.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps preserve in-flight data and metadata during sudden power failure, reducing corruption risk and improving reliability in enterprise and mission-critical storage systems.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 10 is best for database performance and redundancy, while RAID 5 or RAID 6 may suit capacity-focused deployments with acceptable protection.