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| Brand | Samsung |
|---|---|
| Model | PM1643 |
| Capacity | 7.68TB |
| Usage Class | Read Intensive / Enterprise |
| Host Interface | SAS 12.0 Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND (64-layer) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 14016 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 1700 MB/s |
| Random Read IOPS | 400000 |
| Random Write IOPS | 50000 |
| Average Latency | 130 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT7T6HBLA |
|---|
Compared with the previous MZILT7T6HBLA, the Samsung PM1643 MZILT7T6HMLA advances to 64-layer V-NAND and delivers a stronger enterprise balance of 7.68TB capacity, 14,016TB TBW endurance, and up to 2100/1700 MB/s sequential performance on the same 12Gb/s SAS interface. Its 400,000/50,000 IOPS profile makes it a superior choice for mixed-read virtualization, OLTP database, and tier-1 storage array workloads where higher density and sustained reliability are required without stepping up to NVMe infrastructure.
With 14,016 TBW endurance and a 1 DWPD rating, the MZILT7T6HMLA-00007 is built to handle very heavy write activity, equating to roughly 14 petabytes of total data written over its usable life. In typical read-heavy or mixed enterprise workloads, this is far beyond the demand of a system or boot drive and can support many years of stable operation with ample write headroom. Its built-in Power Loss Protection (PLP) helps safeguard in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption and improving system recovery confidence. An UBER of 1.0E-17 means uncorrectable read errors are extremely rare, which is a key enterprise-class indicator for strong data integrity in servers, storage arrays, and other mission-critical environments.
1. The SAS 12 Gb/s interface, paired with strong sequential read performance, enables fast bulk data access and smooth throughput for enterprise backup, media streaming, and large-scale database scans.
2. Its high random read capability accelerates small-block access patterns, helping virtualized infrastructure and transactional databases respond faster under heavy concurrent workloads.
3. A 1 DWPD endurance rating makes it a reliable fit for read-intensive enterprise applications that still require predictable write capability over the drive’s service life.
4. Samsung 64-layer V-NAND TLC balances density, efficiency, and cost, giving data centers a practical mix of capacity and dependable performance for mainstream server deployments.
5. The low typical latency helps reduce storage response time, improving application consistency and delivering snappier performance for latency-sensitive business systems.
Lower capacity reference: 3.84TB Higher capacity reference: 15.36TB The 7.68TB model sits at the sweet spot of this SSD family. Compared with the 3.84TB version, it gives much better headroom for data growth, reducing early capacity pressure and lowering the need for drive expansion. Compared with the 15.36TB version, it delivers a more balanced mix of cost efficiency, usable capacity, and enterprise-class performance without overcommitting budget. In practical deployment, 7.68TB is well suited for medium-scale virtualization, such as hosting boot and active data sets for about 60 to 80 mixed-workload virtual machines.
Q: Is MZILT7T6HMLA-00007 suitable for a write-heavy database server?
A: It can support mixed and moderate write-intensive database workloads, but with 1 DWPD, it is not the best choice for very heavy write-intensive database servers requiring higher daily endurance.
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 sustain one full 7.68TB drive write per day across its warranty period, aligned with its 14,016TB total endurance rating.
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 preventing corruption and maintaining enterprise storage reliability.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is generally recommended for enterprise SSD deployments needing strong performance and redundancy. For capacity-focused environments, RAID 5 or RAID 6 may also be considered, depending on workload.