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| Brand | Micron |
|---|---|
| Model | RealSSD P320h |
| Capacity | 700GB |
| Usage Class | Enterprise |
| Host Interface | PCIe Gen2 x8 |
|---|---|
| Total Interface Bandwidth | 32 Gb/s |
| Form Factor | HHHL |
|---|
| NAND Flash | SLC |
|---|---|
| Drive Writes Per Day | |
| Total Bytes Written | 50000 TBW |
| Sequential Read | 3200 MB/s |
|---|---|
| Sequential Write | 1900 MB/s |
| Random Read IOPS | 785000 |
| Random Write IOPS | 205000 |
| Average Latency | 42 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The Micron RealSSD P320h 700GB (MTFDGAR700SAH) is purpose-built for ultra-write-intensive workloads such as high-frequency trading logs, metadata acceleration, and OLTP journal tiers, where its SLC NAND and 50,000TB TBW deliver substantially higher endurance and write consistency than typical enterprise MLC-based PCIe SSDs in the same class. With up to 3,200/1,900 MB/s throughput and 785K/205K random read/write IOPS over PCIe Gen2 x8, it provides low-latency acceleration for transaction-heavy databases and cache layers that need deterministic performance under sustained mixed workloads.
With an endurance rating of 50,000 TBW, the MTFDGAR700SAH is designed to sustain extremely heavy write workloads over its service life, far beyond the demands of typical OS, application, and general server boot usage. In practical terms, under normal system-disk or read-intensive enterprise workloads, this level of endurance supports long-term deployment with confidence, including many years of stable operation without write-life concerns. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving system integrity. Its ultra-low UBER of 1.0E-17 indicates a very low probability of uncorrectable bit errors during reads, supporting dependable data access in business-critical environments.
1. The PCIe Gen2 x8 interface provides a wide, stable host link that helps enterprise servers sustain fast data movement for virtualization, analytics, and high-concurrency transactional workloads.
2. With sequential read performance up to 3200 MB/s, this SSD accelerates large-file access, reducing dataset load times and speeding up backup, restore, and streaming read operations.
3. Delivering up to 785,000K random read IOPS, it is well suited for latency-sensitive databases and heavily virtualized environments where many small read requests must be served at once.
4. Rated for [dwpd] DWPD, the drive is designed for write-intensive enterprise deployments, supporting predictable lifespan and lower replacement risk under continuous daily rewrites.
5. Built on SLC NAND and offering a typical latency of 42 µs, it delivers highly consistent response times and strong write endurance for mission-critical caching, logging, and real-time processing.
Lower capacity reference: 350GB Higher capacity reference: 1.4TB Capacity positioning analysis: In this product family, the 700GB model sits at the practical sweet spot. Compared with the 350GB version, it gives meaningfully more headroom for OS images, logs, swap, and steady application growth, reducing early capacity pressure. Compared with the 1.4TB option, it usually delivers the best balance of acquisition cost, usable endurance, and enterprise-grade performance consistency, since sequential throughput and random IOPS remain broadly similar across the series. It is especially well suited for medium-scale virtualization clusters, such as hosting boot and utility volumes for roughly 40 to 60 virtual machines.
Q: Is MTFDGAR700SAH suitable for a write-heavy database server?
A: Yes. The MTFDGAR700SAH is well suited for write-heavy database workloads thanks to its SLC NAND, 50,000 TBW endurance, low 42 µs typical latency, and enterprise-class power loss protection.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Based on 50,000 TBW and 700GB capacity, it can sustain about 71,429 full drive writes total. Assuming a 5-year warranty, that equals roughly 39 full drive 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 protects metadata during unexpected outages, which is critical for databases, journaling systems, and transactional enterprise workloads.
Q: What RAID level is recommended for this SSD?
A: For enterprise deployment, RAID 10 is typically recommended. It combines strong performance, fast rebuilds, and fault tolerance, making it a better fit than parity RAID for write-intensive applications.