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| Brand | Micron |
|---|---|
| Model | M550 |
| Capacity | 256GB |
| Usage Class | Client |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" 7mm |
|---|
| NAND Flash | 20nm MLC |
|---|---|
| Drive Writes Per Day | 0.08 |
| Total Bytes Written | 72 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 500 MB/s |
| Random Read IOPS | 90000 |
| Random Write IOPS | 80000 |
| Average Latency | μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The MTFDDAK256MAY (M550 256GB) is best suited for read-intensive client and edge-cache workloads that need strong SATA consistency, delivering up to 550/500 MB/s sequential performance and 90,000/80,000 IOPS from durable 20nm MLC NAND. Compared with typical TLC-based SATA drives in the same class, it offers a more balanced mix of low-latency random performance and 72 TB endurance, making it a solid choice for OS boot, application acceleration, and light mixed-use workstation deployments.
With an endurance rating of 72 TBW and 0.08 DWPD, the MTFDDAK256MAY is well suited for typical read-heavy and mixed-use workloads such as OS boot, office applications, embedded systems, and general industrial computing. In practical terms, this level of endurance is sufficient for a system drive under normal daily usage and can support long-term deployment, including many years of stable operation when write volume remains moderate. For reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is interrupted unexpectedly. Its UBER specification of 1.0E-15, together with a 1.5 million hour MTBF, indicates a dependable enterprise-class design focused on low uncorrectable error rates and consistent operation in business-critical environments.
1. The SATA 6Gb/s interface ensures broad compatibility with legacy enterprise platforms, enabling straightforward upgrades without changing existing server or storage backplanes.
2. With sequential read performance of 550 MB/s, this drive accelerates boot storms, image distribution, and large-file access in virtualized and read-heavy environments.
3. Delivering up to 90,000 random read IOPS, it helps databases and VDI workloads respond faster under highly concurrent small-block access patterns.
4. Rated at 0.08 DWPD, this SSD is best suited for read-centric enterprise applications where capacity, stability, and cost efficiency matter more than heavy daily rewrite demands.
5. Built on 20nm MLC NAND, it provides a balanced mix of endurance, data integrity, and predictable performance for long-life business deployments.
Lower capacity reference: 128GB Higher capacity reference: 512GB Within this enterprise SSD family, the 256GB model sits at the practical sweet spot. Compared with the 128GB version, it offers noticeably better headroom for OS growth, logs, swap, and application updates, reducing capacity pressure in long-life deployments. Compared with the 512GB option, it preserves nearly the same enterprise-class sequential and random I/O behavior while keeping acquisition cost and per-node storage budgeting under tighter control. This makes 256GB especially well suited for small-to-medium virtualization clusters, such as hosting boot and utility volumes for roughly 40 to 60 infrastructure-focused virtual machines.
Q: Is MTFDDAK256MAY suitable for a write-heavy database server?
A: MTFDDAK256MAY is generally not ideal for write-heavy database workloads. With 0.08 DWPD and 72TB TBW, it is better suited for read-intensive, boot, cache, or light mixed-use enterprise applications.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 0.08 DWPD, meaning about 8% of its 256GB capacity can be written daily over the warranty period. That equals roughly 20GB 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 unexpected outages, reducing corruption risk and improving storage reliability in server and enterprise environments.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on workload priorities. RAID 1 is suitable for simple redundancy, while RAID 10 is typically preferred for better performance and fault tolerance in business-critical systems.