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| Brand | Micron |
|---|---|
| Model | P400e |
| Capacity | 512GB |
| Usage Class | Enterprise |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" 7mm |
|---|
| NAND Flash | 25nm MLC |
|---|---|
| Drive Writes Per Day | 0.1 |
| Total Bytes Written | 175 TBW |
| Sequential Read | 350 MB/s |
|---|---|
| Sequential Write | 140 MB/s |
| Random Read IOPS | 50000 |
| Random Write IOPS | 7500 |
| Average Latency | 75 μs |
| Mean Time Between Failures | 1.2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The Micron P400e 512GB (MTFDDAK512MAR-1K1AA) is best suited for read-centric SATA deployments such as CDN edge cache, web hosting boot volumes, and content-serving nodes, where its 25nm MLC NAND, 50,000/7,500 IOPS, and 350/140 MB/s throughput deliver predictable performance at low write intensity. With 175 TBW endurance and a standard SATA 6Gb/s interface, it offers a more robust and operationally safer choice than typical client-grade TLC SSDs in the same capacity class for always-on infrastructure.
With an endurance rating of 175 TBW and 0.1 DWPD, the MTFDDAK512MAR-1K1AA is well suited for read-centric and light-write workloads such as operating system, boot, edge appliance, and general-purpose business applications. In practical terms, for a typical system-drive workload, this level of endurance can comfortably support many years of normal operation, making it a dependable choice for long service life deployment. For reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and metadata if power is interrupted unexpectedly, reducing the risk of corruption and improving system recovery confidence. Its UBER of 1.0E-15, together with a 1.2 million-hour MTBF, reflects enterprise-class data integrity and stability expectations, giving buyers added assurance for business-critical use.
1. The SATA 6Gb/s interface enables broad drop-in compatibility with mainstream enterprise servers and storage arrays, making refresh projects simpler and more cost-efficient.
2. Its sequential read performance is well suited for boot volumes, log replay, and read-heavy archive access, helping business systems retrieve large files with consistent responsiveness.
3. Strong random read capability supports virtualization, metadata lookup, and database index access, improving application responsiveness when many small requests arrive at once.
4. The low DWPD rating makes this drive a better fit for read-centric enterprise workloads such as content repositories, reference datasets, and infrequently updated system images rather than heavy write environments.
5. Built on 25nm MLC NAND with low typical latency, it delivers a practical balance of data reliability, predictable response time, and lower cost for steady-state enterprise operations.
The closest reference capacities in the same series are typically 480GB as the lower-capacity option and 960GB as the higher-capacity option. Their sequential read/write performance and random IOPS are generally in line with the 512GB model, following normal enterprise SSD behavior where capacity changes more than speed. The 512GB model sits at the sweet spot of the lineup. Compared with 480GB, it provides better room for operating systems, patches, logs, and moderate data growth. Compared with 960GB, it delivers nearly the same practical performance while keeping acquisition cost and unused capacity under tighter control. It is best suited for mid-scale infrastructure, such as boot and application volumes for roughly 40 to 60 general-purpose virtual machines.
Q: Is MTFDDAK512MAR-1K1AA suitable for a write-heavy database server?
A: This model is generally not recommended for write-heavy database workloads. With 0.1 DWPD and 175 TBW, it is better suited for read-intensive, mixed-use, or light-write enterprise applications.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: The rated endurance is 0.1 DWPD, meaning about 10% of the 512GB capacity can be written daily over the warranty period. This equals roughly 51.2GB of writes per day.
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 data integrity in enterprise or RAID environments.
Q: What RAID level is recommended for this SSD?
A: The best RAID level depends on your priority. RAID 1 is recommended for simple redundancy, while RAID 10 is preferred for better performance and fault tolerance in business-critical workloads.