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| Brand | Samsung |
|---|---|
| Model | SM863 |
| Capacity | 1.92TB |
| Usage Class | Mixed Use / Data Center |
| Host Interface | SATA 6.0 Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND (32-layer) MLC |
|---|---|
| Drive Writes Per Day | 3.6 |
| Total Bytes Written | 12320 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 485 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 29000 |
| Average Latency | 100 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KM1T9HMJP |
|---|
Compared with the earlier MZ7KM1T9HMJP, the Samsung SM863 MZ7KM1T9HAJM-00005 brings a newer 32-layer V-NAND MLC platform that improves sustained enterprise endurance and write consistency, delivering 1.92TB with 3.6 DWPD and 12,320 TBW in the same SATA 6.0 Gb/s class. With up to 520/485 MB/s sequential performance and 97K/29K IOPS random throughput, it is a stronger fit for write-intensive virtualization, OLTP, and read-cache tiers where predictable QoS and long service life matter more than peak interface speed.
With an endurance rating of 12,320 TBW and 3.6 DWPD, the MZ7KM1T9HAJM-00005 is designed to sustain very heavy daily write activity, far beyond the needs of a typical OS, boot, or read-mostly application drive. In practical terms, under normal enterprise system-disk workloads, this level of endurance provides many years of comfortable operating margin and helps minimize concerns about wear-related replacement. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and unclean shutdown issues. Its UBER rating of 1.0E-17, combined with a 2 million hour MTBF, indicates very strong data integrity and dependable long-term operation in business-critical environments.
1. The SATA enterprise interface enables drop-in deployment across legacy and mixed-server fleets, giving data centers a low-risk upgrade path without changing backplanes or storage controllers.
2. Its near-saturation sequential read performance speeds up boot storms, backup restores, and large dataset streaming, helping reduce wait time in read-heavy server workloads.
3. Strong random read capability makes it well suited for virtualization, OLTP databases, and metadata-intensive applications where fast access to small blocks directly improves user responsiveness.
4. This endurance class supports sustained full-drive rewrites in demanding enterprise duty cycles, making it a reliable fit for write-intensive logging, caching, and transactional workloads.
5. Samsung’s MLC V-NAND architecture, combined with enterprise-grade low latency, delivers tighter QoS consistency and more predictable response times for latency-sensitive applications.
Lower capacity reference: 960GB Higher capacity reference: 3.84TB Capacity positioning analysis: Within the Samsung SM863 family, the 1.92TB model sits at a practical sweet spot. Compared with the 960GB version, it gives noticeably more headroom for OS images, application growth, log expansion, and overprovisioning flexibility, reducing the risk of early capacity pressure. Compared with the 3.84TB option, it delivers nearly the same enterprise-class throughput and IOPS while keeping acquisition cost and capacity planning more disciplined. This makes 1.92TB especially well suited for mid-scale virtualization clusters, such as shared boot and application storage for about 40 to 60 general-purpose virtual machines.
Q: Is MZ7KM1T9HAJM-00005 suitable for a write-heavy database server?
A: Yes. With 3.6 DWPD, 12,320 TBW, Samsung 32-layer V-NAND MLC, and 100 µs typical latency, this 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: It is rated for 3.6 full drive writes per day. For a 1.92TB model, that equals about 6.9TB of writes daily, consistent with its 12,320TB total endurance rating.
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 enterprise and database environments.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your goal: RAID 1 for redundancy, RAID 10 for high performance and resilience, or RAID 5/6 when balancing usable capacity with protection.