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| Brand | Samsung |
|---|---|
| Model | SM863a |
| Capacity | 1.92 TB |
| Usage Class | Mixed Use |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 48-layer 3D MLC |
|---|---|
| Drive Writes Per Day | 3.6 |
| Total Bytes Written | 12612 TBW |
| Sequential Read | 510 MB/s |
|---|---|
| Sequential Write | 485 MB/s |
| Random Read IOPS | 95000 |
| Random Write IOPS | 28000 |
| Average Latency | 115 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-7KM1T9B |
|---|
Compared with the earlier MZ-7KM1T9B, the MZ-7KM1T9NE SM863a advances to Samsung 48-layer V-NAND 3D MLC and delivers a stronger endurance profile at 1.92 TB, sustaining 3.6 DWPD and 12,612 TBW for heavier enterprise write workloads within the same SATA 6.0 Gbps class. With up to 510/485 MB/s sequential throughput and 95,000/28,000 IOPS random performance, it is a precise fit for read-intensive virtualization, boot-from-SAN, and database logging tiers that need SATA compatibility without sacrificing enterprise-grade write resilience.
With an endurance rating of 12,612 TBW and 3.6 DWPD, the MZ-7KM1T9NE is built for sustained enterprise write workloads and can comfortably handle frequent full-drive writes every day throughout its service life. In typical server or system-disk use, this level of endurance provides substantial headroom for many years of reliable operation, making it a low-risk choice for demanding business deployments. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted. Its UBER rating of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of unrecoverable read errors and supports dependable operation in business-critical storage environments.
1. The SATA 6.0 Gbps interface, paired with near–bus-limit sequential read speed, makes this drive an easy drop-in upgrade for legacy enterprise servers that need faster backup, boot, and data streaming without changing platform architecture.
2. Its strong random read capability helps virtualized databases, OLTP workloads, and metadata-heavy applications return small-block data quickly under high concurrency, improving user responsiveness at scale.
3. With a 3.6 DWPD endurance profile, the drive is well suited for write-intensive enterprise roles such as logging, caching, and mixed transactional workloads that demand predictable lifespan under continuous daily rewrites.
4. Samsung V-NAND 48-layer 3D MLC provides a balanced combination of endurance, consistency, and power-efficient density, making it more reliable for 24/7 datacenter operation than commodity client-grade flash.
5. The low typical latency supports faster commit and response times for latency-sensitive applications, helping reduce storage wait states in transactional systems and heavily consolidated environments.
Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB In this series, the 1.92 TB model sits at the sweet spot for mainstream enterprise deployment. Compared with the 960 GB version, it offers much better headroom for OS images, application growth, log retention, and overprovisioning flexibility, reducing the risk of early capacity pressure. Compared with the 3.84 TB option, it delivers nearly the same enterprise-class throughput and IOPS while keeping acquisition cost and replacement budget under tighter control. It is best suited for mid-sized virtualization clusters, such as hosting boot and utility volumes for roughly 40 to 70 business application VMs.
Q: Is MZ-7KM1T9NE suitable for a write-heavy database server?
A: Yes. With 3.6 DWPD, 12,612 TBW, Samsung 48-layer 3D MLC V-NAND, and 115 µs typical latency, MZ-7KM1T9NE is well suited for write-intensive database and enterprise workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 3.6 full drive writes per day. For a 1.92 TB SSD, that equals about 6.9 TB of writes daily within its specified endurance range.
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 reliability in servers, RAID arrays, and databases.
Q: What RAID level is recommended for this SSD?
A: RAID choice depends on workload. RAID 10 is typically recommended for high-write, latency-sensitive applications, while RAID 5 or 6 may fit capacity-focused environments requiring fault tolerance.