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| Brand | Samsung |
|---|---|
| Model | PM9D3a |
| Capacity | 3.84TB |
| Usage Class | Read Intensive |
| Host Interface | PCIe Gen5 x4 |
|---|---|
| Total Interface Bandwidth | 32 Gb/s |
| Form Factor | 2.5-inch |
|---|
| NAND Flash | Samsung V7 (176-layer) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 12000 MB/s |
|---|---|
| Sequential Write | 6800 MB/s |
| Random Read IOPS | 2000000 |
| Random Write IOPS | 185000 |
| Average Latency | 80 μs |
| Mean Time Between Failures | 2.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZTLB3T8HCLS |
|---|
Compared with the previous-generation MZTLB3T8HCLS, the Samsung PM9D3a MZ-TL63T8A steps up to a PCIe Gen5 x4 interface and 176-layer Samsung V7 TLC, delivering up to 12,000/6,800 MB/s and 2,000,000/185,000 IOPS for a clear gain in host-side bandwidth and random-read responsiveness. Its 3.84TB capacity, 1 DWPD endurance, and 7008 TBW make it a strong fit for latency-sensitive virtualization, scale-out database, and high-throughput content-serving tiers that need Gen5-class read performance without moving to a higher-endurance cost profile.
With an endurance rating of 7008 TBW and 1 DWPD, the MZ-TL63T8A is designed to sustain a full drive write per day across its warranty period, which is more than sufficient for typical enterprise system-boot, read-intensive, and mixed-use deployments. In practical terms, under normal server OS, virtualization, or application workloads that do not continuously overwrite the drive at maximum levels, this endurance provides long-term operational headroom and dependable service life. The MZ-TL63T8A also includes power loss protection (PLP), which helps preserve in-flight data and metadata integrity during unexpected power interruptions, reducing the risk of corruption and unclean shutdown issues. Its enterprise-class UBER of 1.0E-17, together with a 2.5 million-hour MTBF, indicates a very low uncorrectable bit error rate and strong overall reliability, giving procurement teams confidence in data integrity and platform stability.
1. The latest-generation PCIe interface with a four-lane design gives this drive the bandwidth headroom to keep GPUs, CPUs, and high-speed fabrics fed without storage becoming the bottleneck.
2. Its class-leading sequential read performance shortens database startup, analytics scans, and AI model staging, helping large datasets move into memory much faster.
3. Exceptional random read capability enables ultra-responsive access to massive numbers of small data requests, making it ideal for virtualized platforms, high-traffic databases, and inference-heavy workloads.
4. Built for steady daily full-drive writes on durable Samsung TLC media, it delivers a strong balance of usable endurance, flash efficiency, and cost control for mainstream enterprise deployments.
5. Very low typical latency helps reduce application wait time, improving transaction responsiveness and consistency for latency-sensitive services.
Lower capacity: 1.92TB Higher capacity: 7.68TB At 3.84TB, the MZ-TL63T8A sits in the sweet spot of the family. Compared with the 1.92TB option, it gives meaningfully better headroom for OS images, application data, and growth buffering, reducing the need for early drive expansion. Compared with the 7.68TB model, it usually delivers the best balance of acquisition cost, usable capacity, and enterprise-grade performance consistency. This capacity is well suited for mid-scale virtualization clusters, such as hosting boot and primary application storage for about 40 to 60 general-purpose virtual machines.
Q: Is MZ-TL63T8A suitable for a write-heavy database server?
A: Yes, it can support database workloads well. With 1 DWPD, 7008 TBW, TLC NAND, and 80 µs typical latency, it fits mixed-use or moderately write-intensive enterprise database environments.
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 3.84TB drive write per day throughout its warranty period, aligned with its 7008 TB total endurance rating.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes PLP. This is critical because it helps protect in-flight data and metadata during sudden power failure, reducing corruption risk and improving reliability in enterprise systems.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive applications, as it balances speed, redundancy, and rebuild safety. RAID 1 or RAID 5 may also suit specific capacity needs.