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| Brand | Samsung |
|---|---|
| Model | PM893 |
| Capacity | 1.92 TB |
| Usage Class | Enterprise / Data Center Read Intensive |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V6 (128-layer) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 3504 TBW |
| Sequential Read | 550 MB/s |
|---|---|
| Sequential Write | 520 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 30000 |
| Average Latency | 140 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ7LH1T9HMLT |
|---|
The Samsung PM893 1.92TB (MZ-7L31T90) is a strong choice for read-intensive and mixed enterprise SATA deployments, pairing the full 550/520 MB/s SATA ceiling with 98,000/30,000 IOPS and 1 DWPD endurance for a substantial 3504 TBW service life. Compared with the previous-generation MZ7LH1T9HMLT, it benefits from newer Samsung V6 128-layer TLC NAND, delivering a more modern balance of endurance, performance consistency, and capacity efficiency for server boot, virtualization, and scale-out storage nodes.
With an endurance rating of 3,504 TBW and 1 DWPD, the MZ-7L31T90 is designed to support writing its full capacity once per day across the warranty period, which is more than sufficient for typical enterprise boot, OS, logging, and read-intensive application workloads. In practical terms, under normal system-drive usage, this level of endurance provides long-term operational headroom and can comfortably support many years of stable service without endurance concerns. The drive also includes power loss protection (PLP), which helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving system recovery reliability. Combined with an enterprise-class UBER of 1.0E-17 and a 2 million hour MTBF, it delivers a very low uncorrectable error rate and strong overall dependability for business-critical environments.
1. The SATA interface enables straightforward drop-in deployment across legacy and mixed enterprise server fleets, making it a practical upgrade path for expanding flash capacity without platform changes.
2. Its sequential read performance accelerates bulk data access, helping databases, boot volumes, and virtual machine images load faster during peak production windows.
3. Strong random read capability supports highly concurrent workloads such as OLTP, VDI, and metadata-heavy applications, improving responsiveness when many small requests arrive at once.
4. A one-drive-write-per-day endurance profile fits read-centric enterprise use cases, giving operators predictable lifespan for content delivery, analytics, and general-purpose server storage.
5. Samsung’s 128-layer TLC NAND paired with low typical latency provides a balanced mix of density, cost efficiency, and consistent QoS for enterprise systems that need responsive storage at scale.
Lower capacity reference: 960 GB Higher capacity reference: 3.84 TB In this SSD family, 1.92 TB is the sweet-spot capacity. Compared with 960 GB, it gives much better headroom for OS images, application binaries, logs, and steady data growth, reducing early capacity pressure and refresh frequency. Compared with 3.84 TB, it keeps acquisition cost and fleet-wide budget under tighter control while delivering essentially the same enterprise-class sequential throughput and random IOPS profile. It is best suited for mid-scale virtualization clusters, such as hosting boot and utility volumes for about 40 to 60 general-purpose virtual machines.
Q: Is MZ-7L31T90 suitable for a write-heavy database server?
A: Yes, it is suitable for many write-intensive database workloads. With 1 DWPD, 3504 TBW, TLC NAND, low 140 µs latency, and PLP, it supports reliable enterprise write performance.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated at 1 DWPD, meaning it can sustain one full 1.92 TB drive write per day throughout its warranty period, within the specified endurance limits.
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 database environments.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for database and mixed write workloads, as it balances performance, redundancy, and rebuild reliability. RAID 1 is also suitable for smaller, high-availability deployments.