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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 240 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 | 1.5 |
| Total Bytes Written | 350 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 245 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 10000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7LM240HCGR-00005 |
|---|
Compared with the previous-generation MZ7LM240HCGR-00005, the PM863 MZ7LM240HMHQ0D3 advances to Samsung V-NAND 3D TLC and delivers a stronger enterprise endurance profile at 1.5 DWPD and 350 TBW, while sustaining up to 520/245 MB/s sequential performance and 99,000/10,000 IOPS on the same SATA 6Gb/s interface. Its unique value in the 240 GB class is combining near-SATA-limit read throughput with write endurance suited for read-centric virtualization, boot, and mixed enterprise workloads, making it a more durable and operationally efficient upgrade path than legacy SATA SSDs.
With an endurance rating of 350 TBW and 1.5 DWPD, this SSD is more than sufficient for typical system-disk, boot-drive, and read-heavy application workloads, where daily writes are usually far below its rated limit. In practical terms, under common OS and application usage patterns, it can deliver many years of stable service without endurance becoming a concern. This model also includes power-loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power failure, reducing the risk of corruption and improving system recovery confidence. Its ultra-low UBER of 1.0E-17 means uncorrectable read errors are extremely rare, supporting the high data integrity and dependability expected in enterprise environments.
1. The SATA enterprise interface provides broad compatibility with legacy and mainstream server backplanes, making this drive a low-risk drop-in upgrade for existing storage fleets.
2. Its near-bus-limit sequential read performance accelerates boot storms, backup scans, and large-file retrieval in read-heavy enterprise workloads.
3. The strong random read capability helps databases, virtualization clusters, and metadata-intensive applications sustain fast response under highly concurrent access.
4. Its write endurance rating supports consistent daily rewrites over multi-year deployment cycles, reducing replacement frequency in mixed-use datacenter environments.
5. Samsung’s 3D TLC V-NAND and low typical latency combine to deliver better power-efficient density with predictable responsiveness for latency-sensitive business applications.
Lower-capacity reference: 120 GB Higher-capacity reference: 480 GB At 240 GB, this model sits in the sweet spot of the series. Compared with the 120 GB version, it gives much better headroom for OS growth, logs, patches, and application buffers, reducing the risk of early capacity pressure in always-on enterprise environments. Compared with the 480 GB option, it delivers nearly the same enterprise-class sequential and random performance while keeping acquisition cost and per-node storage budgeting under tighter control. It is best suited for small-to-mid-scale deployments, such as boot and service volumes for about 40 to 60 lightweight virtual machines.
Q: Is MZ7LM240HMHQ0D3 suitable for a write-heavy database server?
A: Yes, it can support moderate to write-intensive database workloads. With 1.5 DWPD, 350 TBW, low 120 µs latency, and enterprise PLP, it is suitable for reliable transactional server environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1.5 full drive writes per day. For a 240 GB SSD, that equals about 360 GB 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 sudden power failure, reducing corruption risk and improving data integrity in enterprise and database applications.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for database and write-sensitive workloads, as it balances performance, redundancy, and rebuild safety. RAID 1 is also suitable where capacity needs are lower.