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| Brand | Samsung |
|---|---|
| Model | PM863a |
| Capacity | 960 GB |
| Usage Class | Read Intensive |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 1360 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 480 MB/s |
| Random Read IOPS | 97000 |
| Random Write IOPS | 24000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7LM960HMJP-00005 |
|---|
Compared with the earlier MZ7LM960HMJP-00005, the Samsung PM863a MZ-7LM960N advances the platform with Samsung V-NAND 3-bit TLC and a stronger enterprise endurance class of 1.3 DWPD / 1,360 TBW, while sustaining up to 520/480 MB/s sequential performance. For 960 GB SATA deployments, it stands out as a more durable and better-balanced read-optimized drive, pairing 97,000/24,000 IOPS with proven 6.0 Gbps compatibility for dense server refreshes and steady-state cloud workloads.
With an endurance rating of 1,360 TBW and 1.3 DWPD, the MZ-7LM960N is built to handle sustained daily write activity well beyond typical OS, application, and general business storage workloads. In practical terms, for use cases such as a system boot drive, virtualization host disk, or read-heavy enterprise application storage, this level of endurance supports many years of dependable service under normal operating conditions. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and protect metadata integrity during unexpected power interruptions. Its UBER of 1.0E-17, combined with a 2 million hour MTBF, indicates a very low probability of uncorrectable bit errors and a design target aligned with stable, data-center-class operation.
1. The SATA enterprise interface, paired with near bus-limit sequential throughput, makes this drive a practical drop-in upgrade for legacy servers that need faster backup, log streaming, and bulk data ingestion without moving to a PCIe platform.
2. Its strong random-read capability helps virtualized workloads and busy database environments return small-block data quickly, improving VM responsiveness and reducing storage-side queue buildup during peak access periods.
3. The enterprise write-endurance profile supports sustained daily overwrite activity, giving IT teams confidence for mixed-use applications such as email, analytics, and read-heavy transactional systems over a full service lifecycle.
4. Samsung V-NAND 3-bit TLC balances capacity efficiency with enterprise-grade firmware management, enabling lower cost per gigabyte while still maintaining the consistency expected in datacenter deployments.
5. The low typical access latency helps accelerate transaction handling and metadata lookups, which is especially valuable for latency-sensitive applications that depend on predictable response times rather than raw bandwidth alone.
For the MZ-7LM960N 960 GB enterprise SSD, the closest lower tier in the same family is typically 480 GB, while the next higher tier is 1.92 TB. At 960 GB, this drive sits in the sweet spot of the series. Compared with the 480 GB model, it offers much better headroom for OS images, logs, and application growth without changing the expected enterprise-class performance profile. Compared with the 1.92 TB option, it keeps acquisition cost and fleet budgeting under tighter control while still delivering strong capacity efficiency. It is well suited for mid-scale virtualization, such as hosting boot and utility volumes for about 40 to 60 virtual machines.
Q: Is MZ-7LM960N suitable for a write-heavy database server?
A: Yes. The MZ-7LM960N is suitable for write-intensive database workloads, thanks to its 1.3 DWPD endurance, 1360 TBW rating, low 120 µs typical latency, and enterprise-oriented reliability features.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 1.3 full drive writes per day (DWPD) over its warranty period. For a 960 GB SSD, that equals about 1.25 TB of writes daily.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection (PLP). This is critical because it helps preserve in-flight data and metadata during sudden power failures, reducing corruption risk in enterprise environments.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 10 is typically preferred for databases, delivering strong performance, redundancy, and fast rebuilds, while RAID 1 suits smaller mirrored deployments.