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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 4th-Gen 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 | 140 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 earlier MZILT3T8HALS-00007, the MZILT3T8HALS PM1643 represents a later PM1643 build based on Samsung 4th-Gen 64-layer V-NAND, giving data center teams a more current enterprise SAS platform with the same 3.84 TB capacity and 1 DWPD / 7008 TBW endurance for smoother lifecycle standardization. Its 2100/1700 MB/s throughput and 400,000/50,000 IOPS profile make it a strong fit for mixed-read virtualization, OLTP, and scale-out storage tiers that need higher random-read density than typical SATA SSDs without moving to NVMe.
With an endurance rating of 7008 TBW and 1 DWPD, the MZILT3T8HALS is designed to handle writing its full capacity once per day across its rated service life, which is more than sufficient for typical enterprise OS boot, application, and general server workloads. In practical terms, under common mixed-use conditions, this level of endurance provides strong long-term write headroom and can comfortably support use as a system drive for many years without endurance becoming a concern. For reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and prevents metadata corruption if power is interrupted unexpectedly, an important safeguard for servers and storage systems. Its enterprise-class UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of unrecoverable read errors and strong overall operational stability, giving procurement teams added confidence in data integrity and uptime.
1. The high-bandwidth SAS interface with enterprise protocol support ensures dependable integration into mission-critical storage arrays, while preserving the redundancy, manageability, and serviceability demanded by always-on data centers.
2. Its strong sequential read capability accelerates large-block workloads such as database backup, media streaming, and analytics scans, helping reduce batch windows and improve overall system throughput.
3. The drive’s very high random read performance is well suited for virtualization, OLTP databases, and metadata-heavy applications, where faster access to small data blocks translates into higher VM density and snappier application response.
4. With an endurance profile designed for one full drive rewrite per day, it provides a balanced fit for read-centric enterprise workloads that still require predictable lifespan, controlled maintenance cycles, and lower replacement risk.
5. Built on Samsung’s advanced V-NAND TLC architecture and paired with low typical latency, the drive delivers an effective mix of density, power efficiency, and consistently fast response times for latency-sensitive business applications.
For MPN MZILT3T8HALS (3.84 TB), the nearest lower capacity in the same enterprise SSD family is typically 1.92 TB, and the nearest higher capacity is 7.68 TB. In this series, sequential read/write performance and random IOPS are generally very similar across these capacities under standard enterprise workloads. At 3.84 TB, this drive sits in the sweet spot of the lineup. Compared with 1.92 TB, it gives much better headroom for data growth, denser VM placement, and longer refresh cycles without immediately stepping into a higher drive count. Compared with 7.68 TB, it usually delivers the best balance of usable capacity, acquisition cost, and predictable enterprise performance. It is especially well suited for mid-scale virtualization clusters, database log and hot-data tiers, or mixed application nodes serving roughly 40 to 60 business workloads.
Q: Is MZILT3T8HALS suitable for a write-heavy database server?
A: MZILT3T8HALS is better suited for mixed-use enterprise workloads rather than highly write-heavy databases. Its 1 DWPD endurance fits transactional, virtualization, and read/write balanced environments, but sustained intensive writes may require higher-DWPD SSDs.
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 support one full 3.84 TB drive write per day over its warranty period, aligning with its 7008 TB total endurance rating.
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 unexpected outages, which is critical for enterprise systems requiring data integrity, consistency, and reduced corruption risk.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 10 is ideal for high-performance databases, while RAID 5 or RAID 6 offers better usable capacity with redundancy for general enterprise storage.