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| Brand | Micron |
|---|---|
| Model | RealSSD P420m |
| Capacity | 1.4TB |
| Usage Class | Enterprise |
| Host Interface | PCIe Gen2 x8 |
|---|---|
| Total Interface Bandwidth | 32 Gb/s |
| Form Factor | HHHL |
|---|
| NAND Flash | 25nm MLC |
|---|---|
| Drive Writes Per Day | |
| Total Bytes Written | 10000 TBW |
| Sequential Read | 3300 MB/s |
|---|---|
| Sequential Write | 630 MB/s |
| Random Read IOPS | 750000 |
| Random Write IOPS | 95000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
The Micron RealSSD P420m 1.4TB (MTFDGAR1T4MAX-1AG1ZA) is particularly well suited for read-centric OLTP databases, large-scale virtualization clusters, and analytics cache tiers, delivering up to 750,000 random read IOPS and 3.3 GB/s sequential read bandwidth over PCIe Gen2 x8. Compared with typical enterprise SSDs in its class, its combination of 25nm MLC NAND and 10,000 TBW provides a stronger balance of extreme read performance and enterprise-grade endurance for mixed workloads that demand consistent low-latency service.
With an endurance rating of 10,000 TBW, the MTFDGAR1T4MAX-1AG1ZA is designed to handle very heavy write activity over its service life, making it well suited for demanding enterprise and mixed-use environments. In typical deployment scenarios such as OS boot, application hosting, logging, and general server workloads, this level of endurance provides long-term peace of mind and is more than sufficient for years of stable operation. This drive also includes enterprise-class reliability features such as power-loss protection, which helps preserve in-flight data and metadata during unexpected power interruptions and reduces the risk of corruption. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity, while the 2 million hour MTBF further reflects a design focused on dependable continuous operation.
1. The PCIe Gen2 x8 interface provides a wide host-side data path that helps enterprise servers move large datasets efficiently and avoid storage bottlenecks in mixed workload environments.
2. With sequential read performance of 3300 MB/s, the drive accelerates bulk data access, shortening backup restore, analytics scan, and VM image loading times in the data center.
3. Its random read capability of 750,000 K IOPS enables extremely fast access to small-block data, making it well suited for latency-sensitive databases, virtualization, and high-concurrency online services.
4. Rated for [dwpd] DWPD and built on 25nm MLC NAND, the SSD balances strong write endurance with enterprise-grade flash reliability for sustained 24/7 business workloads.
5. A typical latency of 100 µs helps deliver consistently responsive storage behavior, improving application QoS and reducing wait time for transaction-heavy workloads.
Lower capacity reference: 960GB Higher capacity reference: 1.92TB The 1.4TB model sits at the sweet spot of this SSD family. Compared with 960GB, it gives noticeably more headroom for OS images, databases, logs, and overprovisioning, reducing early capacity pressure in always-on enterprise workloads. Compared with 1.92TB, it usually delivers a better acquisition-cost-to-usable-capacity ratio while keeping performance behavior broadly in line with the series. That makes 1.4TB an excellent balance point for mid-scale deployments, such as a 3-node virtualization cluster hosting about 60 to 80 mixed application and infrastructure workloads.
Q: Is MTFDGAR1T4MAX-1AG1ZA suitable for a write-heavy database server?
A: Yes. With 25nm MLC NAND, 10,000 TBW endurance, low 100 µs typical latency, and enterprise features, this 1.4TB SSD is well suited for write-intensive database and transactional server workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Based on 10,000 TBW and 1.4TB capacity, the drive supports about 7,143 full drive writes total. Assuming a 5-year warranty, that equals roughly 3.9 DWPD sustained over the coverage period.
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 reliability in databases, RAID arrays, and other enterprise environments.
Q: What RAID level is recommended for this SSD?
A: For most enterprise deployments, RAID 10 is recommended because it delivers strong performance, fast rebuilds, and redundancy. For write-heavy databases, it is generally preferred over RAID 5 or RAID 6.