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| Brand | Samsung |
|---|---|
| Model | PM1633a |
| 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 48-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 1200 MB/s |
|---|---|
| Sequential Write | 1000 MB/s |
| Random Read IOPS | 200000 |
| Random Write IOPS | 32000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS3T8HMLH0D3 |
|---|
Compared with the earlier MZILS3T8HMLH0D3, the MZILS3T8HMLH-000D3 is the newer PM1633a production revision, giving enterprise buyers a cleaner lifecycle and qualification path while preserving the proven 3.84TB, 7,008TBW, 12Gb/s SAS performance envelope for drop-in deployment. With Samsung 48-layer V-NAND, up to 1200/1000 MB/s throughput, and 200,000/32,000 IOPS, it is a strong fit for read-heavy virtualization clusters, database servers, and legacy SAS infrastructures that need higher flash consistency and endurance than typical mixed-use TLC drives in the same class.
With an endurance rating of 7008 TBW, this SSD is designed to handle approximately 7.0 petabytes of total writes, which is more than sufficient for typical system-disk, boot, application, and general enterprise workloads over many years of operation. Its 1 DWPD rating further indicates that the drive can sustain one full drive write per day under normal enterprise use, giving purchasers confidence in stable long-term write endurance. This model 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 safety. In addition, its enterprise-class UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low uncorrectable bit error rate and strong overall reliability, making it a dependable choice for business-critical environments.
1. The dual-port SAS interface provides the high-availability connectivity and predictable interoperability that enterprise storage arrays and mission-critical servers rely on for nonstop operation.
2. Its strong sequential read performance accelerates large-block workloads such as backup restores, media streaming, and data warehouse scans, helping shorten batch windows.
3. The high random read capability enables fast response under heavily concurrent access, making it well suited for virtualization, OLTP databases, and metadata-intensive applications.
4. With an endurance profile designed for one full drive overwrite per day, it fits read-centric enterprise deployments that need dependable lifespan without overpaying for unnecessary write headroom.
5. Built on Samsung’s 48-layer 3D TLC V-NAND and low typical latency, the drive balances enterprise-class capacity efficiency with consistently quick access times for latency-sensitive business workloads.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB At 3.84 TB, this drive sits in the sweet spot of the series. Compared with the 1.92 TB model, it gives meaningfully more headroom for data growth, longer refresh cycles, and better flexibility when consolidating mixed workloads, while maintaining essentially the same enterprise-class sequential and random performance profile. Compared with the 7.68 TB version, it avoids the higher acquisition cost and capacity overprovisioning that many deployments do not fully use. It is best suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 virtual machines.
Q: Is MZILS3T8HMLH-000D3 suitable for a write-heavy database server?
A: It can support mixed-use or moderate write database workloads, but for truly write-heavy database servers, 1 DWPD may be limiting. A higher-endurance SSD would generally be the safer recommendation.
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 7008 TBW 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 preventing corruption and maintaining storage consistency in enterprise systems.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for database and high-I/O applications, as it balances performance, redundancy, and rebuild efficiency. For capacity-focused deployments, RAID 5 or RAID 6 may also be considered.