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| Brand | Samsung |
|---|---|
| Model | SM863 |
| Capacity | 960 GB |
| Usage Class | Write Intensive |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 2-bit MLC |
|---|---|
| Drive Writes Per Day | 3.6 |
| Total Bytes Written | 6160 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 485 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 29000 |
| Average Latency | 95 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7LH480HAHQ |
|---|
Compared with the earlier MZ7LH480HAHQ, the Samsung SM863 MZ-7KM9600 advances to a higher-endurance V-NAND 2-bit MLC design at 960 GB, delivering 3.6 DWPD and 6,160 TBW for a clear generational gain in write durability and deployment longevity. With up to 520/485 MB/s sequential performance and 97,000/29,000 IOPS over SATA 6.0 Gbps, it is a stronger fit than typical read-centric SATA SSDs for write-intensive virtualization, OLTP, and caching tiers that need enterprise-class endurance without moving to SAS or NVMe.
With an endurance rating of 6,160 TBW and 3.6 DWPD, the MZ-7KM9600 is built for sustained heavy write workloads over its service life. In practical terms, under typical enterprise or system-disk usage, this level of endurance provides long-term peace of mind and is more than sufficient for many years of reliable operation. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps prevent in-flight data loss and protects metadata integrity during an unexpected power interruption. Its 1.0E-17 UBER and 2 million hour MTBF indicate a very low likelihood of unrecoverable bit errors and strong long-term operational stability, making it a dependable choice for business-critical deployments.
1. The SATA 6.0 Gbps interface, paired with 520 MB/s sequential read performance, provides a drop-in upgrade for legacy enterprise servers and storage arrays, accelerating boot, backup, and large-file streaming workloads without requiring a PCIe platform refresh.
2. With 97,000 K IOPS random read capability, the drive can sustain highly concurrent access patterns in virtualized infrastructure, OLTP databases, and metadata-heavy applications while reducing storage-side contention.
3. A 3.6 DWPD endurance rating makes it well suited for write-intensive enterprise workloads such as logging, caching, and mixed-use transactional environments where predictable lifespan is critical for fleet planning.
4. Samsung V-NAND 2-bit MLC flash offers a strong balance of endurance, consistency, and data integrity, making it a better fit than TLC for always-on business systems that demand stable performance under sustained load.
5. The typical 95 µs latency helps shorten application response time and improve QoS consistency, which is especially valuable for latency-sensitive services such as real-time analytics and high-density virtualization.
Reference capacities in the same series: Lower capacity: 480 GB Higher capacity: 1.92 TB Capacity positioning analysis: At 960 GB, this model sits at the sweet spot of the lineup. Compared with the 480 GB version, it offers much better headroom for OS images, application growth, logging, and overprovisioning, reducing the risk of early capacity pressure in always-on enterprise workloads. Compared with the 1.92 TB option, it keeps acquisition cost and $/IO deployment efficiency more balanced while delivering essentially the same enterprise-class sequential and random performance profile. It is especially well suited for mid-sized virtualization clusters, such as hosting boot and application volumes for about 40 to 60 general-purpose virtual machines.
Q: Is MZ-7KM9600 suitable for a write-heavy database server?
A: Yes. The MZ-7KM9600 is well suited for write-heavy database workloads, thanks to its 3.6 DWPD endurance, 6160 TBW rating, Samsung V-NAND 2-bit MLC, and low 95 µs typical latency.
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. With 960 GB capacity, that equals about 3.46 TB of writes daily across its specified warranty endurance 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 unexpected outages, reducing corruption risk and improving reliability in enterprise and transactional environments.
Q: What RAID level is recommended for this SSD?
A: The best RAID level depends on your goal. RAID 10 is typically recommended for high-performance databases, while RAID 1 or RAID 5/6 may suit capacity or redundancy-focused deployments.