| Brand | Samsung |
|---|---|
| Model | PM1725a |
| Capacity | 800GB |
| Usage Class | Enterprise |
| Host Interface | NVMe PCIe Gen3 x4 |
|---|---|
| Total Interface Bandwidth | 32 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3bit MLC (TLC) |
|---|---|
| Drive Writes Per Day | 5 |
| Total Bytes Written | 7300 TBW |
| Sequential Read | 3300 MB/s |
|---|---|
| Sequential Write | 1100 MB/s |
| Random Read IOPS | 800000 |
| Random Write IOPS | 120000 |
| Average Latency | 90 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZWLW800HMLT |
|---|
Compared with the earlier MZWLW800HMLT generation, the Samsung PM1725a MZ-WLL800A leverages NVMe PCIe Gen3 x4 to deliver up to 3,300/1,100 MB/s and 800,000/120,000 IOPS, giving it a clear advantage in low-latency transactional throughput and high-concurrency read acceleration. With 5 DWPD, 7,300 TBW endurance, and Samsung V-NAND 3bit MLC (TLC), this 800GB model is a strong fit for mixed enterprise workloads such as OLTP databases, virtualization, and cache tiers where sustained write tolerance matters as much as peak read speed.
With an endurance rating of 7,300 TBW and 5 DWPD, the MZ-WLL800A is built to handle very write-intensive enterprise workloads over its service life. In practical terms, under typical OS, application, cache, or logging workloads, this level of endurance provides ample headroom for many years of stable operation, making it a dependable choice even for demanding system-drive use. The MZ-WLL800A also includes power-loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power outage, reducing the risk of corruption and unplanned recovery events. Its enterprise-class UBER of 1.0E-17, together with a 2 million-hour MTBF, indicates an extremely low probability of uncorrectable bit errors and a design focused on consistent, reliable operation in business-critical environments.
1. The NVMe over PCIe x4 design gives this drive the parallel bandwidth needed to keep virtualized hosts, database nodes, and scale-out storage systems from being bottlenecked by legacy SATA or SAS links.
2. Its strong sequential read performance helps large datasets, backup images, and analytics files stream into memory faster, reducing wait time for scan-heavy enterprise workloads.
3. The high random read capability makes it well suited for latency-sensitive applications such as OLTP databases, VDI boot storms, and metadata-intensive cloud platforms that depend on rapid small-block access.
4. The enterprise-grade endurance rating supports sustained heavy daily write activity, making the SSD a reliable fit for write-intensive caching, logging, and mixed-workload server environments over its service life.
5. Samsung V-NAND TLC combined with very low typical latency delivers a balanced mix of capacity efficiency, flash reliability, and consistently fast response times for transactional and real-time business workloads.
Lower capacity reference: 400GB Higher capacity reference: 1.6TB In this product family, the 800GB model sits at the sweet spot. Compared with the 400GB version, it gives much better headroom for OS growth, application updates, logging, and short-term data bursts, reducing the risk of early capacity pressure. Compared with the 1.6TB option, it delivers a more attractive balance of acquisition cost, usable space, and enterprise-grade performance, since sequential throughput and random IOPS are generally similar across these capacities. It is especially well suited for mid-sized virtualization clusters, such as hosting boot and application volumes for around 40 to 60 business workloads.
Q: Is MZ-WLL800A suitable for a write-heavy database server?
A: Yes. The MZ-WLL800A is well suited for write-heavy database workloads, thanks to its 5 DWPD endurance, 7300 TBW rating, low 90 µs latency, and enterprise-grade NVMe Gen3 x4 interface.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 5 full drive writes per day. With 800GB capacity, that equals about 4TB of writes daily, aligned with its total endurance rating of 7300 TBW.
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 improving reliability in enterprise, database, and virtualization environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for this SSD in performance-sensitive environments, because it provides strong read/write performance, redundancy, and faster rebuild behavior than parity-based RAID for critical workloads.