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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 | MZILS3T8HCJM00D4 |
|---|
Compared with the earlier MZILS3T8HCJM00D4, the Samsung PM1633a (MZILS3T8HMLH0D3) leverages 48-layer V-NAND TLC to deliver a more modern balance of enterprise density and endurance, offering 3.84 TB capacity with 1 DWPD and 7008 TBW in the same 12 Gb/s SAS class. With up to 1200/1000 MB/s sequential throughput and 200,000/32,000 IOPS random performance, it is a strong fit for read-centric virtualization, database, and mixed enterprise storage tiers that need higher capacity efficiency than many same-generation SAS SSDs without giving up proven SAS reliability.
With an endurance rating of 7008 TBW and 1 DWPD, the MZILS3T8HMLH0D3 is built to handle a full drive write per day across its warranty life, which is more than sufficient for typical enterprise boot, read-intensive, and mixed application workloads. In practical terms, for common system-disk or server OS deployments, this level of endurance supports many years of stable operation without concern about normal write wear. 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, combined with a 2 million-hour MTBF, reflects a very low probability of uncorrectable read errors and strong long-term operational dependability for business-critical environments.
1. The SAS 12.0 Gbps interface ensures broad compatibility with enterprise storage backplanes and dual-port infrastructures, enabling reliable deployment in mission-critical servers and storage arrays.
2. With 1200 MB/s sequential read performance, the drive accelerates large-file access, helping reduce backup, restore, and analytics data-loading windows in enterprise workflows.
3. Delivering 200,000 random read IOPS, it supports highly responsive transaction-heavy applications such as virtualization, database querying, and metadata-intensive workloads.
4. Rated at 1 DWPD, the SSD provides the write endurance needed for mixed-use enterprise environments, balancing long-term reliability with controlled infrastructure cost.
5. Built with Samsung V-NAND 48-layer 3D TLC and featuring 110 µs typical latency, it combines efficient flash density with fast response time to keep application performance consistent under sustained business operations.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB The 3.84 TB model sits at the sweet spot of this enterprise SSD family. Compared with the 1.92 TB version, it gives much better headroom for dataset growth, VM density, and overprovisioning flexibility without changing the expected enterprise-class read/write or random IOPS profile. Compared with the 7.68 TB option, it usually delivers the best balance between acquisition cost, usable capacity, and performance consistency. In practice, it is well suited for mid-sized virtualization clusters, such as hosting boot and application volumes for about 40 to 60 business workloads.
Q: Is MZILS3T8HMLH0D3 suitable for a write-heavy database server?
A: MZILS3T8HMLH0D3 is suitable for mixed-use and moderately write-heavy database workloads. With 1 DWPD, 7008 TBW, SAS 12Gbps, and low latency, it supports enterprise databases reliably, though extreme write-intensive environments may require higher endurance.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated for 1 full drive write per day. For a 3.84TB capacity, that equals about 3.84TB daily over a standard 5-year warranty, consistent with its 7008TB TBW 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 sudden outages, reducing corruption risk and supporting database consistency, system integrity, and safer enterprise storage operations.
Q: What RAID level is recommended for this SSD?
A: For database and transactional workloads, RAID 10 is typically recommended because it balances strong performance, fast rebuilds, and redundancy. If usable capacity is the priority, RAID 5 or RAID 6 may also be considered.