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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 3.84TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12Gbps |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | V-NAND TLC (64-layer) |
|---|---|
| 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 | 45000 |
| 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 the previous-generation MZILT3T8HALE-00007, the PM1643 MZILT3T8HALS0D3 moves to 64-layer V-NAND TLC and delivers stronger mixed-workload performance with up to 2100/1700 MB/s sequential throughput and 400,000/45,000 IOPS random read/write. Its 3.84TB capacity, 1 DWPD endurance, and 7008 TBW make it a well-balanced SAS 12Gbps choice for enterprise database, virtualization, and read-centric transactional workloads that need higher density and sustained reliability without stepping up to a higher-write endurance tier.
With an endurance rating of 7008 TBW and 1 DWPD, the MZILT3T8HALS0D3 is designed to support 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 workload scenarios. In practical terms, under normal operating conditions, procurement teams can expect stable long-term use without endurance becoming a concern in standard deployment cycles. 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 or unplanned downtime. Its ultra-low UBER of 1.0E-17, together with a 2 million hour MTBF, indicates very strong data integrity and dependable operation expected in data center and business-critical environments.
1. The SAS interface enables seamless drop-in deployment across dual-controller enterprise storage systems, giving data centers dependable high-availability connectivity without requiring a platform redesign.
2. Its strong sequential read performance accelerates large-block workloads such as backup recovery, media streaming, and analytics scans, reducing time-to-data for bandwidth-heavy applications.
3. The high random read capability supports dense virtualization, OLTP databases, and metadata-intensive environments by sustaining fast response under heavily concurrent small-block access.
4. Built with TLC V-NAND and a steady enterprise write endurance profile, it balances flash density and lifespan for read-centric business workloads that still require predictable daily write capacity.
5. The low typical latency helps transactional systems, VM clusters, and real-time services deliver more consistent user experience by minimizing storage wait time at the application layer.
Lower capacity reference: 1.92TB Higher capacity reference: 7.68TB In this series, the 3.84TB model is the practical sweet spot. Compared with the 1.92TB version, it gives much better headroom for dataset growth, VM sprawl, and overprovisioning flexibility without changing the expected enterprise-class sequential throughput or random IOPS profile. Compared with the 7.68TB option, it usually delivers a more attractive cost-per-drive while avoiding overbuying capacity that many mid-scale workloads will not immediately use. It is especially well suited for a medium virtualization cluster, such as hosting boot and application volumes for about 40 to 60 business VMs.
Q: Is MZILT3T8HALS0D3 suitable for a write-heavy database server?
A: Yes, it can support moderately write-intensive database workloads. With 1 DWPD, 7008 TBW, low 110 µs latency, and SAS 12Gbps, it fits enterprise servers, though extreme write-heavy use may require higher endurance.
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 3.84TB drive write per day throughout 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 helps preserve in-flight data and metadata during unexpected outages, reducing corruption risk and improving reliability for databases, virtualization, and other enterprise write operations.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is generally recommended for this SSD in performance-sensitive enterprise environments, as it balances speed, redundancy, and rebuild safety. RAID 5 or 6 may suit capacity-focused workloads.