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| Brand | Samsung |
|---|---|
| Model | PM9A3 |
| Capacity | 15.36 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 | 28032 TBW |
| Sequential Read | 6900 MB/s |
|---|---|
| Sequential Write | 4100 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 | MZQL215THBLA-00A7C |
|---|
The Samsung PM9A3 15.36TB (MZQL215THBLA-00B7C) combines PCIe Gen4 x4 bandwidth with 6th-Gen 128-layer V-NAND to deliver up to 6,900/4,100 MB/s and 1,000,000/180,000 IOPS, making it a strong fit for high-density virtualization, scale-out storage, and read-intensive cloud databases that need large capacity without sacrificing latency. Compared with the earlier MZQL215THBLA-00A7C revision, this B7C version stands out as a newer-generation platform with the same enterprise-class 1 DWPD profile but a compelling balance of 15.36TB capacity and 28,032TBW endurance, giving architects a more future-ready Gen4 deployment option in the same PM9A3 family.
With an endurance rating of 28,032 TBW and 1 DWPD, the MZQL215THBLA-00B7C is designed to handle sustained daily write activity across its warranty period, making it well suited for demanding enterprise and data-center workloads. In typical server or system-disk use, this level of endurance provides a very large write budget, so buyers can expect long service life without concern over normal operating write volume. For enterprise reliability, this SSD includes Power Loss Protection (PLP), which helps preserve in-flight data and protects mapping information during unexpected power interruptions, reducing the risk of corruption or downtime. Its UBER of 1.0E-17 indicates an extremely low unrecoverable bit error rate, supporting high data integrity, while the 2 million hour MTBF further reflects a design focused on stable, dependable operation.
1. The PCIe Gen4 x4 interface provides the bandwidth headroom needed to keep modern servers fed with data, reducing storage bottlenecks in virtualization, analytics, and scale-out database environments.
2. With sequential read performance up to 6900 MB/s, the drive accelerates large-block workloads such as AI model loading, backup restore, and high-speed content streaming.
3. Random read performance of 1,000,000 K IOPS enables consistently fast response for metadata-heavy applications, helping dense cloud and OLTP platforms serve more users with lower queueing delays.
4. Rated at 1 DWPD, this endurance profile is well suited for mixed-use enterprise deployments that need predictable lifespan and warranty-aligned write capability without overprovisioning for heavier write tiers.
5. Built on Samsung V-NAND 6th-Gen 128-layer 3D TLC and tuned for a typical latency of 85 µs, the drive combines mature flash efficiency with fast access times to improve application responsiveness and rack-level power efficiency.
Lower-capacity reference: 7.68 TB Higher-capacity reference: 30.72 TB In this SSD family, 15.36 TB sits in the sweet spot for mainstream enterprise deployment. Compared with 7.68 TB, it gives much better headroom for data growth, VM density, and longer refresh cycles without changing the expected enterprise-class sequential and random performance profile. Compared with 30.72 TB, it usually delivers a more attractive cost-per-drive while avoiding overprovisioning in environments that do not need maximum capacity per slot. It is especially well suited for mid-scale virtualization clusters, such as a 12- to 16-node platform hosting several hundred general-purpose virtual desktops or application instances.
Q: Is MZQL215THBLA-00B7C suitable for a write-heavy database server?
A: Yes, it can support database workloads, but with 1 DWPD it is better suited for mixed or read-intensive environments rather than extremely write-heavy servers with sustained high daily overwrite demands.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: This model is rated for 1 DWPD, meaning it can handle one full 15.36 TB drive write per day across its warranty period, supported by a total endurance rating of 28,032 TBW.
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, which is critical for maintaining data integrity, consistency, and enterprise application reliability.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is commonly recommended for enterprise SSD deployments when both performance and redundancy matter. If capacity efficiency is a higher priority, RAID 5 or RAID 6 may also be considered.