Secure payments
Standard refund policy
Trade Assurance
| Brand | Samsung |
|---|---|
| Model | PM1633a |
| 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 | 190000 |
| Random Write IOPS | 37000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS960HCHP |
|---|
Compared with the previous-generation MZILS960HCHP, the Samsung PM1633a (MZ-ILS960A) delivers a more efficient 960GB enterprise SAS platform by combining Samsung V-NAND 3bit MLC (TLC) with 12Gb/s SAS performance of up to 1,200/900 MB/s and 190,000/37,000 IOPS. Its standout value is the stronger balance of usable capacity, 1 DWPD endurance, and 1,752 TBW, making it a better-fit upgrade for read-centric to mixed-workload storage tiers that need higher density and lower cost per GB without giving up enterprise reliability.
With an endurance rating of 1,752 TBW and 1 DWPD, the MZ-ILS960A is designed to handle the equivalent of writing its full capacity once per day throughout its rated service life. In typical enterprise or light-to-moderate server workloads, this level of endurance is more than sufficient for long-term use, making it a dependable choice for operating system, boot, and general application storage with years of worry-free operation. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and protect metadata integrity during unexpected power interruptions. Its ultra-low UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of uncorrectable bit errors and strong overall dependability for business-critical environments.
1. The SAS 12Gb/s interface, paired with strong sequential read bandwidth, enables fast dataset ingestion and backup restores while preserving the dual-port reliability and serviceability enterprises expect in mission-critical storage arrays.
2. Its high random read capability accelerates transaction-heavy databases, virtual desktop environments, and metadata-intensive workloads by serving large volumes of small I/O requests with minimal bottlenecks.
3. A typical latency of 110 µs helps applications respond more consistently under load, improving user experience in real-time analytics, OLTP systems, and latency-sensitive virtualized infrastructure.
4. With a 1 DWPD endurance rating, this drive is well suited for read-centric to mixed-use enterprise deployments that need predictable lifespan and controlled maintenance costs over standard refresh cycles.
5. Samsung V-NAND 3bit MLC (TLC) provides a practical balance of capacity, power efficiency, and cost, making it a strong fit for scale-out data centers that need dependable flash performance at better economics per gigabyte.
Lower capacity: 480GB Higher capacity: 1.92TB The 960GB MZ-ILS960A sits at the sweet spot of this enterprise SSD family. Compared with the 480GB model, it gives much better headroom for OS images, application binaries, logs, and data growth, reducing the risk of early capacity pressure. Compared with the 1.92TB version, it delivers a more attractive cost-to-performance balance while maintaining essentially the same enterprise-class sequential and random I/O behavior. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 virtual machines.
Q: Is MZ-ILS960A suitable for a write-heavy database server?
A: MZ-ILS960A can support mixed-use database workloads, but for truly write-heavy database servers, its 1 DWPD rating may be limiting. It is better suited for read-intensive or moderate-write enterprise applications.
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 it can handle one full 960GB drive write per day over its warranty period, consistent with its 1752 TBW endurance specification.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, MZ-ILS960A includes power loss protection. PLP is critical because it helps preserve in-flight data and metadata during sudden power failure, reducing corruption risk and improving enterprise data integrity.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your workload. RAID 10 is ideal for high database performance and redundancy, while RAID 5 or 6 may suit capacity-focused environments with acceptable write overhead.