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| Brand | Samsung |
|---|---|
| Model | PM863 |
| 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 32-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 1400 TBW |
| Sequential Read | 540 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 18000 |
| Average Latency | 120 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7L3960HBLT-00B7C |
|---|
Compared with the earlier MZ7L3960HBLT-00B7C configuration, the MZ7L3960HBLT PM863 delivers a more current enterprise SATA proposition by pairing Samsung 32-layer V-NAND with 1.3 DWPD and 1400 TBW in the same 960 GB footprint, giving architects a stronger endurance-per-bay profile for long-life deployments. With 540/475 MB/s throughput and up to 99,000/18,000 IOPS, it offers a more balanced mix of read performance, sustained write capability, and SATA compatibility than typical value SATA SSDs, making it especially well suited to read-heavy virtualization, boot, and scale-out server tiers.
With an endurance rating of 1400 TBW and 1.3 DWPD, the MZ7L3960HBLT is designed to handle sustained enterprise write activity with ample margin for typical server and storage workloads. In practical terms, when used as a boot, OS, or general system drive under normal daily write volumes, this level of endurance is typically sufficient to support many years of reliable operation, often extending to around 10 years in moderate-use scenarios. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving system integrity. Its UBER of 1.0E-17 and 2 million-hour MTBF further indicate a very low uncorrectable bit error rate and strong long-term dependability, making it a reassuring choice for business-critical environments.
1. The SATA 6.0 Gbps interface enables straightforward drop-in deployment across legacy enterprise backplanes, making it ideal for cost-sensitive server refreshes without changing the storage architecture.
2. With 540 MB/s sequential read performance, this drive accelerates full-file access tasks such as OS imaging, log replay, and large dataset retrieval in read-focused server workloads.
3. Delivering 99,000 K IOPS random read with a typical latency of 120 µs, it helps databases and virtualized environments respond faster under highly concurrent small-block access patterns.
4. Rated at 1.3 DWPD, the SSD provides the write endurance needed for mixed-use enterprise applications that generate steady daily updates without prematurely consuming drive life.
5. Built on Samsung V-NAND 32-layer 3D TLC, it balances capacity, power efficiency, and reliability for data center deployments that need predictable performance at scale.
Lower capacity reference: 480 GB Higher capacity reference: 1.92 TB Capacity positioning analysis: In the PM893 family, the 960 GB model sits at a practical sweet spot. Compared with the 480 GB version, it gives meaningfully more headroom for OS images, logs, container layers, and growth over time, reducing early capacity pressure. Compared with the 1.92 TB option, it delivers nearly the same enterprise-class SATA performance profile while keeping acquisition cost and per-node spend more controlled. This makes 960 GB especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for about 35 to 50 business workloads.
Q: Is MZ7L3960HBLT suitable for a write-heavy database server?
A: Yes, it can support moderately write-intensive database workloads. With 1.3 DWPD, 1400 TBW, low 120 µs latency, and enterprise V-NAND, it fits many server environments reliably.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1.3 DWPD, meaning it can handle about 1.3 full drive writes per day during its warranty period, consistent with its 1400 TBW endurance rating.
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 unexpected outages, reducing corruption risk and improving data integrity in enterprise and RAID deployments.
Q: What RAID level is recommended for this SSD?
A: RAID choice depends on workload and availability goals. RAID 10 is commonly recommended for database servers, offering strong read/write performance, redundancy, and faster rebuilds than parity-based RAID levels.