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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 960 GB |
| Usage Class | Read Intensive |
| Host Interface | SATA 6Gb/s |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3D TLC |
|---|---|
| Drive Writes Per Day | 1.4 |
| Total Bytes Written | 1400 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 14000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7LM960HCHP-00005 |
|---|
Compared with the earlier MZ7LM960HCHP-00005, the Samsung PM863 MZ-7LM960B moves to a newer V-NAND 3D TLC SATA platform, combining near–interface-limit 520/475 MB/s throughput with up to 99,000/14,000 IOPS for better steady-state efficiency in read-heavy virtualized and scale-out storage environments. Its 1.4 DWPD and 1400 TBW at 960 GB give it a clear endurance advantage over typical read-intensive SATA SSDs in the same class, making it a strong fit for boot, caching, and mixed enterprise application workloads that need predictable service life without stepping up to SAS or NVMe.
With an endurance rating of 1,400 TBW and 1.4 DWPD, the MZ-7LM960B is built to handle sustained daily write activity in demanding business environments. In typical server or system-drive workloads, this level of endurance means the drive can comfortably support long-term operation for many years, making it a dependable choice for continuous enterprise use. The MZ-7LM960B also includes power loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted. Its enterprise-grade UBER of 1.0E-17, together with a 2 million hour MTBF, indicates a very low probability of unrecoverable read errors and strong overall reliability for critical applications.
1. The SATA enterprise interface delivers broad legacy-server compatibility and dependable boot or storage-node integration, while its near bus-limit sequential throughput helps accelerate backups, media streaming, and large dataset ingestion.
2. Its strong random-read capability sustains responsive access to heavily indexed databases, virtual machine images, and read-intensive cloud workloads under concurrent user demand.
3. This endurance profile supports consistent daily full-drive rewrites, making it a practical fit for mixed-use enterprise applications that require predictable lifespan and lower replacement risk.
4. Samsung V-NAND 3D TLC combines higher flash density with mature signal integrity and power efficiency, enabling cost-effective capacity scaling without sacrificing datacenter reliability.
5. The low typical latency improves transaction responsiveness and reduces storage wait time, which is especially valuable for OLTP systems, virtualization clusters, and metadata-heavy enterprise workloads.
Lower capacity: 480 GB Higher capacity: 1.92 TB The 960 GB model sits in the sweet spot of this SSD family. Compared with the 480 GB version, it gives much better headroom for OS images, application stacks, logs, and future growth, reducing the risk of early capacity pressure. Compared with the 1.92 TB model, it delivers a more attractive balance between acquisition cost and usable enterprise performance, since sequential throughput and random IOPS remain broadly similar across the series. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for about 60 to 80 virtual machines.
Q: Is MZ-7LM960B suitable for a write-heavy database server?
A: Yes. The MZ-7LM960B is suitable for write-intensive database workloads, thanks to its 1.4 DWPD endurance, 1400 TBW rating, low 120 µs latency, and enterprise-grade Samsung V-NAND 3D TLC.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: It is rated for 1.4 full drive writes per day (DWPD) over its warranty period. For a 960 GB drive, that equals about 1.34 TB of writes per day.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection (PLP). This is critical for enterprise systems because it helps prevent in-flight data loss and metadata corruption during unexpected power interruptions or outages.
Q: What RAID level is recommended for this SSD?
A: RAID recommendation depends on your goal. RAID 1 or RAID 10 is preferred for databases needing strong redundancy and performance, while RAID 5 or 6 may suit capacity-focused environments.