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| Brand | Samsung |
|---|---|
| Model | PM1633 |
| Capacity | 480 GB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3bit MLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 876 TBW |
| Sequential Read | 975 MB/s |
|---|---|
| Sequential Write | 560 MB/s |
| Random Read IOPS | 160000 |
| Random Write IOPS | 14000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KM480HMHQ-00005 |
|---|
Compared with the predecessor MZ7KM480HMHQ-00005, the MZ-ILS480A PM1633 moves to a newer 12Gb/s SAS platform with Samsung V-NAND 3-bit MLC, delivering up to 975/560 MB/s sequential performance and 160,000/14,000 IOPS with 876 TBW endurance at 1 DWPD. This makes it a stronger fit for read-centric enterprise databases, virtualization boot/storage tiers, and high-availability server fleets that need better interface bandwidth, higher flash density, and more efficient 480 GB SAS consolidation than the previous generation.
With an endurance rating of 876 TBW and 1 DWPD, the MZ-ILS480A can sustain writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical OS, boot, and general business application workloads. In practical terms, under common enterprise system-disk or light-to-moderate mixed-use scenarios, this level of endurance supports long-term operation with a comfortable margin and helps ensure worry-free deployment over many years. The MZ-ILS480A also includes power loss protection (PLP), which helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving operational stability. Combined with an UBER of 1.0E-17 and a 2 million-hour MTBF, it delivers enterprise-class data integrity and reliability characteristics that give procurement teams greater confidence in business-critical environments.
1. The SAS 12Gb/s interface provides dual-port, enterprise-grade connectivity that improves high-availability storage design and integrates cleanly into existing mission-critical server backplanes.
2. With sequential read performance up to 975 MB/s, this drive accelerates large-block data access such as backup restore, analytics scans, and virtual machine image loading.
3. Delivering up to 160,000K random read IOPS, it is well suited for metadata-heavy databases and dense virtualized workloads where fast small-block access drives user responsiveness.
4. Rated for 1 DWPD, the endurance profile fits read-centric enterprise applications that need predictable lifespan and lower replacement risk under steady daily write activity.
5. Built with Samsung V-NAND 3bit MLC and a typical latency of 100 µs, the drive balances flash density with consistent response time for transactional systems that depend on stable QoS.
Lower-capacity reference: 240 GB Higher-capacity reference: 960 GB Capacity positioning analysis: In this series, the 480 GB model sits at the practical sweet spot. Compared with the 240 GB version, it gives much better headroom for OS growth, patching, logs, swap, and application overhead, reducing the risk of early capacity pressure in always-on enterprise environments. Compared with the 960 GB option, it usually delivers the best balance of usable space, acquisition cost, and performance consistency, since sequential throughput and random IOPS remain broadly similar across capacities. It is well suited for small-to-mid virtualization clusters, such as hosting boot and utility volumes for about 25-40 virtual machines.
Q: Is MZ-ILS480A suitable for a write-heavy database server?
A: The MZ-ILS480A is better suited for mixed-use or read-intensive workloads. With 1 DWPD endurance, it can handle steady writes, but it is not ideal for highly write-heavy database environments.
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 sustain one full drive write per day over its warranty period. Its 876 TBW rating confirms consistent enterprise-grade write endurance.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, the MZ-ILS480A includes power loss protection. PLP helps preserve in-flight data and metadata during sudden outages, which is critical for data integrity, system stability, and enterprise applications.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 1 suits redundancy, RAID 10 is ideal for performance and fault tolerance, and RAID 5 or 6 may fit capacity-focused deployments.