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| Brand | Samsung |
|---|---|
| Model | PM863 |
| Capacity | 1.92 TB |
| 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 3D TLC |
|---|---|
| Drive Writes Per Day | 1.3 |
| Total Bytes Written | 2800 TBW |
| Sequential Read | 520 MB/s |
|---|---|
| Sequential Write | 475 MB/s |
| Random Read IOPS | 99000 |
| Random Write IOPS | 18000 |
| Average Latency | 95 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7KH240HAHQ |
|---|
Compared with the earlier MZ7KH240HAHQ, the Samsung PM863 MZ-1LB1T90 delivers a substantially higher-density 1.92 TB SATA footprint with a more modern enterprise balance of performance and endurance, reaching 520/475 MB/s, 99,000/18,000 IOPS, and 2,800 TBW at 1.3 DWPD. Its Samsung V-NAND 3D TLC architecture makes it a stronger choice for read-centric to mixed-use server tiers such as virtualization, content delivery, and scale-out storage, where maximizing capacity per bay and predictable endurance matter more than moving to a costlier SAS or NVMe platform.
With an endurance rating of 2800 TBW and 1.3 DWPD, the MZ-1LB1T90 is built to handle sustained write activity well beyond typical business and server workloads. In practical terms, for common OS, application, logging, and general enterprise storage use, it can serve reliably as a system or mixed-use drive for many years, including up to around a decade under normal write conditions. For enterprise reliability, the drive includes power loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power outage, reducing the risk of corruption and improving recovery confidence. Its UBER of 1.0E-17 and 2 million-hour MTBF indicate a very low uncorrectable bit error rate and strong long-term operational reliability, giving procurement teams added assurance for business-critical deployments.
1. The SATA enterprise interface offers broad server and storage-array compatibility, making this drive a low-friction upgrade for stable, cost-efficient deployment in legacy and mixed-infrastructure environments.
2. Its near-saturation sequential read performance accelerates boot storms, backups, and large dataset retrieval, helping content delivery and analytics platforms move bulk data faster.
3. Strong random read capability enables responsive virtualization, OLTP databases, and metadata-heavy workloads by serving large volumes of small I/O requests with minimal queue buildup.
4. The enterprise endurance rating supports sustained daily write activity over the drive’s service life, giving IT teams confidence in always-on business applications with predictable replacement cycles.
5. Samsung V-NAND 3D TLC, paired with microsecond-class typical latency, delivers a practical balance of density, power efficiency, and consistently fast response times for latency-sensitive enterprise workloads.
Lower-capacity reference: 960 GB Higher-capacity reference: 3.84 TB In this enterprise SSD family, the 1.92 TB model sits at the sweet spot of practical deployment. Compared with the 960 GB version, it offers much better capacity headroom for OS images, application growth, logs, and overprovisioning flexibility, reducing early refresh pressure. Compared with the 3.84 TB option, it delivers a more efficient balance of acquisition cost, usable capacity, and enterprise-grade performance that remains broadly similar in sequential throughput and random IOPS. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for about 40 to 60 virtual machines.
Q: Is MZ-1LB1T90 suitable for a write-heavy database server?
A: Yes. With 1.3 DWPD, 2800 TBW endurance, Samsung V-NAND 3D TLC, and 95 µs typical latency, MZ-1LB1T90 is suitable for moderate to write-intensive database workloads in enterprise 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 DWPD, meaning it can sustain about 1.3 full drive writes per day across its warranty period, which aligns with its 2800 TBW endurance specification.
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 data integrity for transactional or enterprise storage applications.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in database or virtualization use cases, as it balances performance, redundancy, and rebuild reliability better than RAID 5 for write-intensive workloads.