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| Brand | Samsung |
|---|---|
| Model | PM1633 |
| Capacity | 3.84TB |
| Usage Class | Enterprise |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3bit MLC (TLC) |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 1200 MB/s |
|---|---|
| Sequential Write | 900 MB/s |
| Random Read IOPS | 160000 |
| Random Write IOPS | 18000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS3T8HMLH |
|---|
Compared with the previous MZILS3T8HMLH generation, the Samsung PM1633 MZ-ILS3T8A moves to Samsung V-NAND 3-bit MLC (TLC) to deliver a more favorable cost-per-TB and density profile while sustaining 1,200/900 MB/s sequential throughput and 160,000/18,000 IOPS on a 12Gb/s SAS interface. Its 3.84TB capacity, 1 DWPD rating, and 7,008 TBW endurance make it a strong fit for read-centric enterprise virtualization, scale-out storage, and database tiers that need predictable SAS reliability with lower acquisition cost than higher-DWPD drives.
With an endurance rating of 7008 TBW and 1 DWPD, the MZ-ILS3T8A is designed to handle writing its full capacity once per day across its warranted service life, which is more than sufficient for typical enterprise OS, boot, logging, and mixed application workloads. In practical terms, under normal system-disk or general server usage, this level of endurance provides long-term write headroom and supports many years of stable operation without endurance-related concern. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17, together with a 2 million hour MTBF, indicates an enterprise-class reliability profile with an extremely low probability of uncorrectable bit errors, helping procurement teams deploy it with confidence in data-critical environments.
1. The dual-port SAS interface brings enterprise-grade path redundancy and seamless compatibility with existing storage arrays, making it ideal for mission-critical servers that prioritize uptime and service continuity.
2. Its strong sequential read performance accelerates large-block data movement, helping backup, media streaming, and analytics platforms shorten load windows and improve throughput efficiency.
3. The high random read capability enables faster response under heavily concurrent transactional workloads, benefiting databases, virtualization clusters, and read-intensive enterprise applications.
4. Built for steady daily full-drive overwrite usage, it provides the endurance profile enterprises need for predictable lifecycle planning in mixed-use data center deployments.
5. Samsung V-NAND TLC combined with low typical latency delivers a balanced mix of capacity efficiency, flash reliability, and consistently responsive application behavior under production load.
Lower capacity reference: 1.92TB Higher capacity reference: 7.68TB Capacity positioning analysis: In this enterprise SSD family, 3.84TB sits at the sweet spot between entry density and high-capacity scaling. Compared with 1.92TB, it offers much better space headroom for OS images, active datasets, logs, and growth, reducing the need for early drive expansion. Compared with 7.68TB, it usually delivers a more attractive cost-per-deployment while keeping performance in the same enterprise class, making budget control easier. This capacity is especially well suited for mid-sized virtualization clusters, database nodes, or hyper-converged infrastructure serving about 40 to 60 mixed business workloads.
Q: Is MZ-ILS3T8A suitable for a write-heavy database server?
A: MZ-ILS3T8A offers 1 DWPD and 7008 TBW, making it better suited for mixed-use or moderate-write database workloads. For consistently write-heavy database servers, a higher-endurance SSD would be recommended.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 full drive write per day. With 3.84TB capacity, that equals about 3.84TB daily, totaling 7008TB written over an implied 5-year warranty period.
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 in enterprise servers, storage arrays, and database environments.
Q: What RAID level is recommended for this SSD?
A: For enterprise use, RAID 10 is typically recommended, especially for databases and virtualization. It provides strong performance and redundancy. RAID 5 or 6 can be used when capacity efficiency matters more.