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| Brand | Samsung |
|---|---|
| Model | 850 PRO |
| Capacity | 512GB |
| Usage Class | Client |
| Host Interface | SATA |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | MLC V-NAND |
|---|---|
| Drive Writes Per Day | 0.32 |
| Total Bytes Written | 300 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 100000 |
| Random Write IOPS | 90000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ-7PD512 |
|---|
Compared with the previous-generation MZ-7PD512, the Samsung 850 PRO 512GB (MZ-7KE512BW) upgrades to MLC V-NAND, combining SATA-saturating 550/520 MB/s throughput with up to 100,000/90,000 IOPS for stronger sustained performance under mixed client and workstation workloads. Its 300 TBW endurance and 0.32 DWPD rating also give it a clear longevity advantage over the prior generation, making it a better fit for write-intensive power-user deployments that still require a SATA form factor.
With a rated endurance of 300 TBW and 0.32 DWPD, this SSD can sustain about 300 terabytes of total writes over its warranted life, which is more than sufficient for typical OS, application, and general business workloads. In practical terms, for use as a boot or system drive with moderate daily write activity, it can provide many years of reliable service, often making it a low-risk choice for long-term deployment. For reliability, the drive is specified at a 2 million hour MTBF and an UBER of 1.0E-15, meaning the expected unrecoverable bit error rate is tightly controlled and aligned with dependable storage operation in professional environments. It does not include power-loss protection (PLP), so while it is well suited for read-focused or standard business use, systems with frequent unexpected power interruptions or strict in-flight write protection requirements should pair it with stable power backup or consider a PLP-equipped model.
1. The SATA interface ensures broad compatibility with mainstream enterprise servers and storage arrays, making upgrades simple and cost-efficient without changing existing backplanes or controllers.
2. Its strong sequential read performance helps accelerate boot volumes, VM image access, and large-scale data retrieval in read-focused production environments.
3. High random read capability supports dense virtualization, OLTP databases, and metadata-heavy workloads by keeping response times stable under parallel user access.
4. The rated endurance is best suited for read-intensive enterprise applications such as content delivery, analytics replicas, and reference data stores where write pressure is moderate and predictable.
5. MLC V-NAND paired with very low typical latency provides a strong balance of reliability, consistency, and fast service response for business-critical workloads that cannot tolerate flash jitter.
Lower-capacity reference: 256GB Higher-capacity reference: 1TB In this series, the 512GB model is the practical sweet spot. Compared with the 256GB version, it gives much more headroom for OS images, application binaries, logs, and growth over time, reducing early capacity pressure in always-on environments. Compared with the 1TB option, it preserves essentially the same enterprise-class sequential and random performance while keeping acquisition cost and fleet-wide budget under tighter control. It is best suited for mid-scale deployments, such as a shared boot and application tier for about 40 to 60 lightweight virtual servers.
Q: Is MZ-7KE512BW suitable for a write-heavy database server?
A: Not ideal for a write-heavy database server. With 0.32 DWPD and 300 TBW, it is better suited for read-intensive or mixed workloads rather than sustained heavy write activity.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This SSD is rated for 0.32 drive writes per day, meaning about one-third of its 512GB capacity can be written daily on average throughout the warranty period.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, it does not include power loss protection. PLP is critical in enterprise environments because it helps prevent in-flight data loss and reduces metadata corruption during unexpected power failures.
Q: What RAID level is recommended for this SSD?
A: RAID 1 or RAID 10 is generally recommended, depending on capacity and performance needs. These levels provide redundancy and better protection, especially since this model does not support PLP.