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| Brand | Samsung |
|---|---|
| Model | PM1633 |
| Capacity | 960GB |
| 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 | 1752 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 | MZILS960HEHP |
|---|
Compared with the previous-generation MZILS960HEHP, the Samsung PM1633 (MZILS960HCHP-000H3) brings a more cost-efficient V-NAND 3-bit MLC architecture while sustaining up to 1200/900 MB/s and 160K/18K IOPS on a 12Gb/s SAS interface, making it a stronger fit for read-centric enterprise tiers that still require dependable write consistency. With 1 DWPD and 1752 TBW at 960GB, this model delivers a well-optimized endurance-to-capacity profile for virtualized infrastructure, database read acceleration, and mixed enterprise workloads where SAS compatibility and predictable latency matter more than overprovisioned write endurance.
With an endurance rating of 1,752 TBW and 1 DWPD, the MZILS960HCHP-000H3 can support writing its full 960 GB capacity once every day across its warranty period, which is more than sufficient for typical enterprise boot, OS, logging, and general application workloads. In practical terms, under normal system-disk or read-intensive server use, this level of endurance provides long-term, worry-free operation and ample write headroom for many years. As an enterprise SSD, it includes power-loss protection (PLP), which helps preserve in-flight data and prevent metadata corruption if power is suddenly interrupted, reducing the risk of unexpected downtime or recovery events. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low uncorrectable bit error rate and strong overall reliability, giving procurement teams confidence in data integrity and stable 24/7 deployment.
1. The SAS interface and strong sequential streaming performance make this drive a practical fit for dual-port enterprise storage arrays, accelerating backup, restore, and large-block database scans without disruptive infrastructure changes.
2. Its high random-read capability helps virtualized clusters and OLTP databases serve far more small-block requests in parallel, reducing user wait time during peak transactional workloads.
3. The endurance profile is well suited to read-centric enterprise applications, giving IT teams predictable lifespan and lower replacement risk in mixed-use servers.
4. Samsung’s V-NAND TLC architecture balances density, power efficiency, and cost, enabling dependable enterprise capacity scaling for mainstream data center deployments.
5. The low typical latency supports faster application response for latency-sensitive workloads such as metadata access, boot storms, and heavily consolidated VM environments.
Reference capacities in the same series for MPN MZILS960HCHP-000H3 (960GB): Lower capacity: 480GB Higher capacity: 1.92TB Performance positioning: The 480GB and 1.92TB variants in this Samsung enterprise SAS SSD family generally deliver very similar sequential read/write behavior and random IOPS to the 960GB model, which is typical for mainstream enterprise drive binning. The main difference is capacity efficiency and cost per usable GB, rather than a major performance gap. Capacity positioning analysis: At 960GB, this model sits in the sweet spot of the series. Compared with the 480GB version, it provides much better headroom for OS images, logs, hot data, and future growth, reducing the risk of early capacity pressure. Compared with the 1.92TB model, it usually offers a more attractive balance of acquisition cost, usable space, and enterprise-grade performance consistency. It is well suited for mid-scale deployments, such as hosting boot and application volumes for around 40 to 60 virtualized business workloads.
Q: Is MZILS960HCHP-000H3 suitable for a write-heavy database server?
A: It can support mixed or moderate-write database workloads, but for truly write-heavy database servers, 1 DWPD may be limiting. Higher-endurance enterprise SSDs are generally recommended for sustained intensive writes.
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 drive write per day over its warranty period. Its 1752 TBW rating aligns with that enterprise endurance level.
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, which is critical for maintaining data integrity, consistency, and reducing corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for enterprise SSD deployments requiring strong performance and redundancy. For capacity-focused environments, RAID 5 or RAID 6 may also be considered, depending on workload priorities.