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| Brand | Samsung |
|---|---|
| Model | SM1625 |
| Capacity | 400 GB |
| Usage Class | Write Intensive |
| Host Interface | SAS |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung Enterprise MLC |
|---|---|
| Drive Writes Per Day | 10 |
| Total Bytes Written | 7300 TBW |
| Sequential Read | 925 MB/s |
|---|---|
| Sequential Write | 595 MB/s |
| Random Read IOPS | 101000 |
| Random Write IOPS | 38000 |
| Average Latency | 115 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN |
|---|
The Samsung SM1625 (MZ6ER400HAGM-000G3) is purpose-built for write-intensive OLTP databases, virtualization journals, and metadata-heavy enterprise workloads, pairing 10 DWPD and 7.3 PBW endurance with consistent SAS performance up to 925/595 MB/s and 101K/38K IOPS. Compared with typical read-optimized or mixed-use SAS SSDs in the same capacity class, it delivers substantially higher sustained write endurance and stronger random-write behavior, making it the safer choice for always-on transactional environments where latency consistency and drive longevity directly impact SLA compliance.
With an endurance rating of 7,300 TBW and 10 DWPD, the MZ6ER400HAGM-000G3 is built for very write-intensive enterprise workloads, allowing the drive to be written in full up to 10 times per day over its rated service life. In typical system-disk or mixed server applications, this level of endurance is far beyond normal daily consumption, providing long-term peace of mind and making 24/7 deployment a safe choice. 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 or incomplete writes. Its UBER rating of 1.0E-17, together with a 2 million-hour MTBF, indicates an extremely low probability of uncorrectable read errors and strong overall dependability for business-critical storage environments.
1. The SAS interface provides dual-port enterprise connectivity and proven storage interoperability, making it well suited for highly available servers and mission-critical arrays.
2. Its 925 MB/s sequential read performance accelerates large-block data access, helping databases, backup targets, and virtualization platforms move bulk data faster.
3. With 101,000 K IOPS random read capability, the drive can sustain dense transactional workloads while reducing storage bottlenecks in OLTP and mixed VM environments.
4. Rated for 10 DWPD and built on Samsung Enterprise MLC NAND, it is engineered for write-intensive applications that demand long service life, consistent endurance, and lower replacement risk.
5. A typical latency of 115 µs helps improve application responsiveness, supporting faster query completion and more predictable performance under enterprise load.
Lower-capacity reference: 240 GB Higher-capacity reference: 480 GB The 400 GB MZ6ER400HAGM sits in the sweet spot of this series. Compared with the 240 GB model, it gives meaningfully better headroom for OS images, logs, metadata, and application growth, reducing early capacity pressure in steady enterprise use. Compared with the 480 GB version, it stays closer to an efficiency-first budget while delivering essentially the same sequential and random performance profile expected from the family. It is best suited for medium-scale deployments, such as a compact virtualization cluster, mixed database staging, or dense boot and monitoring workloads.
Q: Is MZ6ER400HAGM-000G3 suitable for a write-heavy database server?
A: Yes. With 10 DWPD endurance, 7,300 TBW, Enterprise MLC NAND, and 115 µs typical latency, MZ6ER400HAGM-000G3 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: It is rated for 10 full drive writes per day. For a 400 GB SSD, that equals about 4 TB of writes daily, aligning with its enterprise-class 7,300 TBW specification.
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 data integrity for enterprise storage environments.
Q: What RAID level is recommended for this SSD?
A: The best RAID level depends on the workload. RAID 10 is commonly recommended for databases needing strong performance and redundancy, while RAID 5 or 6 may suit capacity-focused deployments.