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| Brand | Micron |
|---|---|
| Model | M500DC |
| Capacity | 400GB |
| Usage Class | Enterprise |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" 7mm |
|---|
| NAND Flash | 2D MLC |
|---|---|
| Drive Writes Per Day | 2 |
| Total Bytes Written | 1460 TBW |
| Sequential Read | 425 MB/s |
|---|---|
| Sequential Write | 375 MB/s |
| Random Read IOPS | 63000 |
| Random Write IOPS | 35000 |
| Average Latency | μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The MTFDBAK400MBB (M500DC 400GB) is a strong fit for read-intensive to mixed-workload enterprise applications such as boot/storage tiers, virtualization hosts, and CDN edge caching, combining 2 DWPD endurance with 1,460 TBW in a compact SATA 6Gb/s form factor. Compared with typical same-class SATA SSDs, its 2D MLC NAND and balanced 63,000/35,000 IOPS profile deliver more predictable sustained write endurance and steadier performance under continuous business workloads.
With an endurance rating of 1460 TBW and 2 DWPD, the MTFDBAK400MBB is built to handle sustained write-intensive use throughout its service life. In typical enterprise workloads, this level of endurance is more than sufficient for long-term deployment as a reliable boot, system, or application drive, providing confidence in daily operation over many years. 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 UBER of 1.0E-16 indicates a very low uncorrectable bit error rate, supporting dependable data integrity, while the 2 million-hour MTBF further reflects a design intended for stable, continuous operation.
1. The SATA 6Gb/s interface ensures broad compatibility with existing enterprise storage backplanes, making it a low-risk upgrade path for legacy servers and boot-intensive infrastructure.
2. Sequential read performance of 425 MB/s helps accelerate large-block data access, improving backup restores, log replay, and bulk content delivery in read-heavy environments.
3. With random read capability reaching 63,000 K IOPS, the drive can sustain responsive performance for virtualization, metadata lookups, and high-concurrency transactional workloads.
4. A 2 DWPD endurance rating gives IT teams the write resilience needed for mixed-use enterprise deployments, supporting steady daily write pressure without premature wear concerns.
5. Built on 2D MLC NAND, this SSD prioritizes predictable latency, stronger write endurance, and consistent quality of service over lower-cost flash designed mainly for lighter workloads.
Lower-capacity reference: 200GB Higher-capacity reference: 800GB Within this enterprise SSD family, the 400GB model sits at the practical sweet spot. Compared with the 200GB version, it offers meaningfully better capacity headroom for OS images, logs, metadata, and workload growth, reducing the need for early overprovisioning. Compared with the 800GB version, it preserves essentially the same enterprise-class sequential and random performance profile while delivering a more attractive cost-per-node for broad rollout. This makes 400GB especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for around 40 to 60 mixed-workload virtual machines.
Q: Is MTFDBAK400MBB suitable for a write-heavy database server?
A: Yes. With 2 DWPD endurance, 1460 TBW, and 2D MLC NAND, the MTFDBAK400MBB is well suited for write-intensive database workloads requiring strong reliability and consistent enterprise SATA performance.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 2 full drive writes per day. For a 400GB SSD, that equals about 800GB of writes daily within its specified warranty endurance limits.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP helps protect in-flight data and mapping tables during unexpected outages, which is critical for preventing corruption and preserving system integrity.
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 high performance and protection, and RAID 5/6 fits capacity-focused environments.