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| Brand | Samsung |
|---|---|
| Model | PM1633 |
| 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 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 1350 MB/s |
|---|---|
| Sequential Write | 1250 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 | MZ1L21T9HCLS-00B7C |
|---|
The Samsung PM1633 (MZILS3T8HCJM-000D4) stands out in the 12 Gb/s SAS class by combining a 3.84 TB capacity point with Samsung V-NAND 3D TLC, 7008 TBW endurance, and sustained 1350/1250 MB/s throughput, making it a strong fit for capacity-optimized enterprise storage tiers that still require predictable latency and SAS dual-port reliability. Compared with MZ1L21T9HCLS-00B7C, this generation’s move to higher-density 3D V-NAND and a 3.84 TB design delivers a clearer cost-per-TB and rack-efficiency advantage while maintaining enterprise-grade write endurance at 1 DWPD.
With an endurance rating of 7,008 TBW and 1 DWPD, the MZILS3T8HCJM-000D4 is built to handle writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical enterprise system-boot, read-intensive, and mixed-use workloads. In practical terms, for common OS, application, and virtualization usage, this level of endurance provides long-term write headroom and can support many years of stable operation without endurance becoming a concern. 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, together with a 2 million hour MTBF, indicates a very low probability of unrecoverable bit errors and strong overall reliability expected from enterprise-class SSD storage.
1. The dual-port SAS interface enables highly available storage paths and seamless integration into enterprise backplanes, making it ideal for mission-critical servers and legacy SAS infrastructures.
2. Its strong sequential read performance accelerates large-block workloads such as database backup, media streaming, and analytics data staging, helping reduce batch processing windows.
3. The high random-read capability sustains fast response under heavily concurrent access, which is especially valuable for virtualization clusters, OLTP databases, and read-intensive cloud services.
4. With an endurance profile suited to one full drive overwrite per day, it provides a practical balance of lifespan and cost for mixed-use enterprise workloads without overpaying for write-heavy media.
5. Built on Samsung V-NAND 3D TLC and paired with low typical latency, it delivers dependable flash efficiency and consistently quick access times for latency-sensitive business applications.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB At 3.84 TB, this model sits at the sweet spot of the family. Compared with the 1.92 TB version, it gives much better headroom for dataset growth, mixed workloads, and longer refresh cycles without changing the performance profile. Compared with the 7.68 TB version, it delivers a more efficient balance of acquisition cost, usable capacity, and predictable enterprise SSD performance. In practice, 3.84 TB is well suited for mid-scale virtualization clusters, database nodes, and all-flash storage pools serving roughly 40 to 80 business applications or service instances.
Q: Is MZILS3T8HCJM-000D4 suitable for a write-heavy database server?
A: It can support enterprise database workloads, but with 1 DWPD and 3D TLC NAND, it is better suited for mixed-use or read-heavy servers than sustained write-heavy database environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated for 1 DWPD, meaning about one full 3.84 TB drive write per day. Based on 7008 TBW, that equals roughly five years of rated endurance.
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 and RAID environments.
Q: What RAID level is recommended for this SSD?
A: For most business-critical workloads, RAID 10 is recommended because it balances performance, redundancy, and rebuild speed. RAID 5 or 6 may fit capacity-focused deployments with lower write intensity.