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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 480 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 | 680 TBW |
| Sequential Read | 525 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 17000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-IL7T76A |
|---|
Compared with the earlier MZ-IL7T76A, the Samsung PM863 MZ7LM480HMHQ delivers a newer V-NAND 3-bit TLC platform that improves cost efficiency and usable endurance density, while still sustaining enterprise-class 680 TBW and 1.3 DWPD in a 480 GB SATA form factor. With 525/475 MB/s sequential performance and up to 99,000/17,000 IOPS, it is a strong fit for read-centric virtualization, boot, and content-serving tiers that need higher random-read responsiveness than legacy SATA SSD generations without moving to a higher-cost SAS or NVMe stack.
With an endurance rating of 680 TBW and 1.3 DWPD, the MZ7LM480HMHQ is designed to handle sustained daily writes well beyond typical OS, boot, and general server application workloads. In practical terms, for a system-drive or read-heavy enterprise deployment, this level of endurance supports many years of stable use with ample write margin, making it a dependable choice for long-term operation. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is interrupted unexpectedly. Its UBER of 1.0E-17, together with a 2 million hour MTBF, reflects enterprise-class data integrity and operational stability, giving procurement teams added confidence in deployment quality.
1. The SATA 6.0 Gbps interface, paired with near-bus-limit sequential read performance, makes this drive an easy drop-in upgrade for legacy enterprise servers that need faster bulk data access without changing backplane infrastructure.
2. Its strong random read capability helps virtualized workloads, OLTP databases, and metadata-heavy applications return small blocks quickly under high concurrency.
3. A 1.3 DWPD endurance rating supports sustained daily write activity in mixed-use enterprise environments, balancing longevity with cost efficiency for always-on deployments.
4. Samsung V-NAND 3-bit TLC provides higher storage density and better power-and-space efficiency, making it well suited for scale-out data center capacity tiers.
5. The low typical latency improves application responsiveness and QoS consistency, which is especially valuable for transactional systems and read-sensitive enterprise workloads.
Lower reference capacity: 240 GB Higher reference capacity: 960 GB Approximate enterprise-class performance across the same series: 240 GB: up to 520 MB/s read, 480 MB/s write, up to 97K/26K random read/write IOPS 480 GB: up to 520 MB/s read, 480 MB/s write, up to 97K/28K random read/write IOPS 960 GB: up to 520 MB/s read, 480 MB/s write, up to 97K/28K random read/write IOPS Within this series, the 480 GB model is the sweet spot for mainstream enterprise deployment. Compared with the 240 GB version, it offers much better capacity headroom for OS images, logs, patch growth, and application buffers, reducing early replacement pressure. Compared with the 960 GB version, it keeps acquisition cost lower while delivering essentially the same SATA-class throughput and IOPS. This makes it a balanced choice for medium-scale virtualization, such as hosting boot and utility volumes for about 40 to 60 business application instances.
Q: Is MZ7LM480HMHQ suitable for a write-heavy database server?
A: Yes, it can support write-intensive database workloads. With 1.3 DWPD, 680 TBW, low 120 µs latency, and enterprise PLP, it is suitable for demanding mixed or write-heavy server environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1.3 drive writes per day. For a 480 GB SSD, that equals about 624 GB of writes daily throughout the supported 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 mapping tables during sudden outages, reducing corruption risk and improving reliability in enterprise and database applications.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on the workload. RAID 1 suits high availability, RAID 10 is preferred for performance and redundancy, and RAID 5 or 6 fits capacity-focused deployments.