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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 3.84 TB |
| Usage Class | Read Intensive |
| Host Interface | PCIe Gen4 x4 |
|---|---|
| Total Interface Bandwidth | 64 Gb/s |
| Form Factor | U.2 (2.5") |
|---|
| NAND Flash | Samsung V-NAND 6th-Gen 128-layer 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 6800 MB/s |
|---|---|
| Sequential Write | 4000 MB/s |
| Random Read IOPS | 1000000 |
| Random Write IOPS | 180000 |
| Average Latency | 85 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZ-QL23T80 |
|---|
Compared with the earlier MZ-QL23T80, the MZ-QL23T800 on Samsung’s PM9A3 platform leverages PCIe Gen4 x4 and 6th-Gen 128-layer V-NAND to deliver up to 6,800 MB/s sequential read and 1,000,000 random read IOPS, giving it a clear generational edge for latency-sensitive virtualization and scale-out cloud storage. Its 3.84 TB capacity, 1 DWPD rating, and 7,008 TBW endurance make it a strong fit for read-centric database, boot, and content-serving tiers that need higher throughput per slot without moving to a higher-endurance drive class.
With an endurance rating of 7008 TBW, this SSD is designed to handle about 7.0 PB of total writes over its service life, which is more than enough for typical OS, boot, virtualization, and general enterprise application workloads. In practical terms, for common system-disk or read-intensive server use, this level of endurance supports many years of stable operation with substantial write headroom. Its built-in power loss protection (PLP) helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving operational safety in enterprise environments. An UBER of 1.0E-17 means an extremely low rate of unrecoverable read errors, providing stronger data integrity assurance for business-critical storage and giving buyers greater confidence in long-term reliability.
1. The PCIe Gen4 x4 interface gives the drive enough host bandwidth to keep modern database, virtualization, and analytics servers from being throttled by the storage bus.
2. Its high sequential read performance accelerates large-file streaming, backup recovery, and data lake scans, cutting wait time for throughput-heavy enterprise workloads.
3. Its strong random read capability supports dense OLTP, VDI, and metadata-intensive applications by serving far more small requests in parallel with less queue buildup.
4. The endurance rating is well suited to read-centric enterprise deployments that rewrite the full drive daily, enabling predictable service life in always-on production environments.
5. Built on Samsung’s advanced 3D TLC V-NAND, the drive combines enterprise-grade flash density with consistently low response time, helping latency-sensitive applications deliver faster user and application interactions.
Lower reference capacity: 1.92 TB Higher reference capacity: 7.68 TB At 3.84 TB, the MZ-QL23T800 sits in the sweet spot of the series. Compared with the 1.92 TB model, it offers much better headroom for OS images, logs, hot data, and steady growth, reducing early capacity pressure in enterprise nodes. Compared with the 7.68 TB version, it keeps acquisition cost and $/IO balance more practical while delivering essentially the same class of enterprise read/write and random IOPS performance. It is especially well suited for mid-scale virtualization clusters, such as hosting boot and application volumes for about 40–60 virtual machines per server.
Q: Is MZ-QL23T800 suitable for a write-heavy database server?
A: Yes, it can support database workloads, but with 1 DWPD it is better suited for mixed-use rather than extremely write-intensive environments. For sustained heavy writes, a higher-endurance enterprise SSD may be preferable.
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 handle one full 3.84 TB drive write per day during its warranty period. Its 7008 TBW rating confirms strong enterprise-class endurance.
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 power failure, which is critical for database integrity, transactional consistency, and reducing corruption risk.
Q: What RAID level is recommended for this SSD?
A: RAID 1, 10, or 5 can be considered depending on priorities. For database and enterprise workloads, RAID 10 is commonly recommended because it provides strong performance, redundancy, and predictable rebuild behavior.