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| Brand | Samsung |
|---|---|
| Model | PM863a |
| 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 | 700 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 | MZ-1LB9600 |
|---|
Compared with the older MZ-1LB9600 generation, the Samsung PM863a MZ7LM480HMHQ-00005 leverages Samsung V-NAND 3-bit TLC to deliver a more cost-efficient enterprise SATA profile while sustaining 520/480 MB/s throughput and 97,000/24,000 IOPS at 480 GB. Its 1.3 DWPD and 700 TBW rating make it a strong fit for read-intensive virtualization, content delivery, and scale-out server boot/storage tiers where higher endurance consistency and lower $/GB than earlier enterprise SATA SSDs are the key design priorities.
With an endurance rating of 700 TBW and 1.3 DWPD, the MZ7LM480HMHQ-00005 is well suited for typical enterprise and system-drive workloads, allowing substantial daily writes over its service life without concern. In practical terms, for OS, boot, and general application storage scenarios, this level of endurance is more than sufficient for long-term stable use and can comfortably support many years of normal operation. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and protect metadata integrity if power is suddenly interrupted. Its UBER of 1.0E-17 indicates an extremely low uncorrectable bit error rate, supporting high data integrity expectations for business-critical environments.
1. The SATA interface makes this drive an easy drop-in upgrade for existing enterprise storage platforms, while near-bus-limit sequential throughput helps accelerate backups, log streaming, and large-file delivery without changing infrastructure.
2. Its strong random read capability supports dense virtualization, metadata-heavy workloads, and read-intensive databases by keeping small-block access fast even under multi-user pressure.
3. This endurance profile is well suited to mixed-use enterprise environments, giving IT teams the confidence to sustain steady daily rewrites across the warranty period without overprovisioning for wear.
4. Samsung V-NAND TLC balances capacity, power efficiency, and cost, making it a practical choice for large-scale deployment where predictable performance per rack matters more than premium flash pricing.
5. The low typical latency helps applications respond more consistently, reducing storage wait time for transactional systems and improving quality of service in shared server environments.
Lower capacity reference: 240 GB Higher capacity reference: 960 GB In this series, the 480 GB model sits at the sweet spot for mainstream enterprise deployment. Compared with the 240 GB version, it gives much better headroom for OS images, logs, application growth, and overprovisioning, reducing the risk of early capacity pressure. Compared with the 960 GB option, it delivers nearly the same enterprise-class sequential and random performance while keeping acquisition cost and fleet-level budget under tighter control. It is especially well suited for small to mid-sized virtualization clusters, such as hosting boot and utility volumes for about 40 to 60 virtual machines.
Q: Is MZ7LM480HMHQ-00005 suitable for a write-heavy database server?
A: Yes. With 1.3 DWPD, 700 TBW, PLP, and low 120 µs typical latency, it is suitable for mixed-use and moderately write-heavy database workloads in enterprise SATA environments.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1.3 drive writes per day, meaning the entire 480 GB capacity can be written about 1.3 times daily throughout its warranty 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 outages, reducing corruption risk and improving reliability for servers, databases, and RAID arrays.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is generally recommended for database and virtualization workloads, balancing performance and redundancy. RAID 1 is also suitable for simple high-availability deployments using this enterprise SATA SSD.