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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 | MZ-7KM9600 |
|---|
The Samsung SM863 MZ7KM960HAHP is a strong fit for write-intensive enterprise SATA deployments, combining Samsung V-NAND 2-bit MLC with 3.6 DWPD and 6,160 TBW to deliver materially better endurance density than typical read-centric 960 GB SATA SSDs without sacrificing steady 520/485 MB/s throughput. Compared with the earlier MZ-7KM9600 generation, MZ7KM960HAHP stands out as the more durability-focused option for virtualization, OLTP, and mixed-workload servers, while still reaching up to 97,000/29,000 random read/write IOPS on a standard SATA 6.0 Gbps interface.
With an endurance rating of 6160 TBW and 3.6 DWPD, the MZ7KM960HAHP is built for sustained enterprise write workloads and can comfortably handle heavy daily data writes throughout its service life. In typical server or system-boot use, this level of endurance means the drive can operate for many years with substantial margin, making it a dependable choice for long-term deployment. For enterprise reliability, the drive includes power-loss protection (PLP), which helps preserve in-flight data and metadata if power is suddenly interrupted, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity in business-critical environments, while the 2 million hour MTBF further reinforces confidence in stable operation.
1. The SATA 6.0 Gbps interface ensures drop-in compatibility with mainstream enterprise servers and storage arrays, making this drive ideal for cost-efficient refreshes without changing backplane infrastructure.
2. With 520 MB/s sequential read performance, the drive accelerates boot storms, large file retrieval, and backup restore operations in read-heavy data center environments.
3. Delivering 97,000 random read IOPS with a typical latency of 95 µs, it supports fast-response virtualized databases and transactional workloads where consistent application responsiveness matters.
4. Rated for 3.6 DWPD endurance, the drive is well suited for write-intensive enterprise use cases such as logging, OLTP, and mixed-workload caching with sustained reliability over its service life.
5. Samsung V-NAND 2-bit MLC provides stronger program/erase durability and more stable long-term performance than lower-cost TLC alternatives, making it a better fit for mission-critical enterprise deployments.
Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB In this series, the 960 GB model sits in the sweet spot. Compared with the 480 GB version, it gives much better headroom for OS images, application binaries, logs, and steady data growth, reducing the risk of early capacity pressure. Compared with the 1.92 TB model, it delivers a more balanced cost-per-drive while keeping broadly similar enterprise SATA read/write and random IOPS behavior. It is best suited for mid-scale deployments, such as a virtualization cluster hosting about 35 to 50 general-purpose virtual machines.
Q: Is MZ7KM960HAHP suitable for a write-heavy database server?
A: Yes. With 3.6 DWPD, 6160 TBW endurance, Samsung V-NAND 2-bit MLC, and 95 µs typical latency, MZ7KM960HAHP is well suited for write-intensive database and enterprise server workloads.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 3.6 DWPD, meaning it can handle about 3.6 full 960 GB drive writes per day throughout its warranty period, aligned with its 6160 TBW 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, which is critical for maintaining data integrity and reducing corruption risk in servers.
Q: What RAID level is recommended for this SSD?
A: RAID choice depends on workload. For database servers, RAID 10 is commonly recommended because it balances performance, redundancy, and rebuild reliability better than RAID 5 or RAID 6.