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| Brand | Micron |
|---|---|
| Model | M500DC |
| Capacity | 120GB |
| 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 | 440 TBW |
| Sequential Read | 425 MB/s |
|---|---|
| Sequential Write | 200 MB/s |
| Random Read IOPS | 63000 |
| Random Write IOPS | 23000 |
| Average Latency | μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The Micron M500DC 120GB (MTFDDAK120MBB) is best suited for read-intensive boot, logging, and metadata tiers in entry enterprise servers and CDN edge nodes, where its 2 DWPD endurance, 440 TBW rating, and 2D MLC NAND deliver materially stronger write resilience than typical client-grade SATA SSDs. With 63,000/23,000 random read/write IOPS and predictable SATA 6Gb/s performance in a compact capacity point, it is an efficient choice for dedicated OS, hypervisor, or cache-journal roles that need enterprise reliability without overprovisioning larger drives.
With a rated endurance of 440 TBW and 2 DWPD, the MTFDDAK120MBB is built to handle sustained write activity far beyond typical OS, boot, and application-drive workloads. In practical terms, for common system-disk use cases with moderate daily writes, this endurance level supports many years of reliable operation and can comfortably serve as a system drive for up to 10 years under typical conditions. For enterprise reliability, built-in power-loss protection (PLP) helps preserve in-flight data and protects against corruption if power is unexpectedly interrupted. Its UBER rating of 1.0E-16 indicates a very low unrecoverable bit error rate, supporting high data integrity expectations in business and data-center environments.
1. The SATA interface enables straightforward drop-in deployment across legacy enterprise servers and storage arrays, minimizing upgrade cost and integration risk.
2. Its sequential read performance helps accelerate boot storms, backup restores, and large-file access in read-focused business workloads.
3. Strong random read capability improves responsiveness for virtualized environments, OLTP databases, and metadata-heavy application traffic.
4. The endurance profile is well suited to write-intensive enterprise use cases, supporting sustained daily overwrite cycles with predictable lifespan under continuous operation.
5. Built on 2D MLC NAND, the drive prioritizes data retention consistency, write stability, and long-term reliability over low-cost consumer flash behavior.
Reference capacities in the same family: Lower capacity: MTFDDAK060MBB, 60GB Higher capacity: MTFDDAK240MBB, 240GB Capacity positioning analysis: The 120GB MTFDDAK120MBB sits in the sweet spot of this SSD family. Compared with the 60GB model, it gives noticeably better headroom for OS images, logs, swap, and application growth, reducing early capacity pressure in enterprise environments. Compared with the 240GB version, it keeps acquisition cost and stranded capacity under tighter control while delivering essentially the same class of sequential throughput and random IOPS expected from this series. It is well suited for small virtualization clusters, such as boot and utility storage for about 20 to 30 lightweight virtual machines.
Q: Is MTFDDAK120MBB suitable for a write-heavy database server?
A: Yes. With 2 DWPD, 440 TBW, and durable 2D MLC NAND, MTFDDAK120MBB is well suited for write-intensive database workloads, especially where endurance, consistent latency, and data protection are important.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 2 full drive writes per day. Over a typical 5-year warranty, that equals about 3,667 full-drive writes total, aligning closely with its 440 TBW endurance rating.
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 unexpected outages, reducing corruption risk and improving reliability for databases, RAID environments, and enterprise applications.
Q: What RAID level is recommended for this SSD?
A: For enterprise use, RAID 1 or RAID 10 is typically recommended. These levels provide strong redundancy, good read/write performance, and faster rebuild behavior than parity-based RAID for critical workloads.