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| Brand | Samsung |
|---|---|
| Model | PM1633a Series |
| Capacity | 7.68TB |
| Usage Class | Enterprise Data Center / Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 15mm |
|---|
| NAND Flash | Samsung 48-layer 3D V-NAND TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 14016 TBW |
| Sequential Read | 1200 MB/s |
|---|---|
| Sequential Write | 900 MB/s |
| Random Read IOPS | 190000 |
| Random Write IOPS | 32000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2.0 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS7T6HMLS |
|---|
Compared with the previous-generation MZILS7T6HMLS, the MZ-ILS7T60 in the PM1633a Series moves to Samsung 48-layer 3D V-NAND TLC, giving it a clear generational advantage in flash density and cost efficiency while retaining the proven SAS 12Gb/s enterprise footprint. With 7.68TB capacity, 14,016TBW endurance, 1,200/900 MB/s sequential performance, and 190,000/32,000 IOPS, it is the stronger choice for capacity-dense virtualization, read-heavy database tiers, and consolidated enterprise storage arrays.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZ-ILS7T60 is designed to sustain heavy daily write workloads throughout its service life. In typical enterprise use, this means it can comfortably serve as a system or application drive for many years, with ample write headroom for long-term, worry-free operation. For enterprise reliability, the drive includes Power Loss Protection (PLP), which helps preserve in-flight data and metadata during unexpected power interruptions, reducing the risk of corruption or incomplete writes. Its UBER of 1.0E-17, together with a 2 million hour MTBF, reflects a high-integrity storage design with extremely low uncorrectable error rates, giving procurement teams greater confidence in data reliability and operational stability.
1. The SAS 12Gb/s interface ensures broad compatibility with enterprise backplanes and dual-port storage architectures, making it a dependable fit for high-availability servers and legacy SAN environments.
2. With 1200 MB/s sequential read performance, this drive accelerates large-block workloads such as database backups, virtual machine image loading, and analytics dataset access.
3. Its 190,000 K IOPS random read capability helps sustain responsive performance in heavily virtualized environments where many users and applications compete for small-block data simultaneously.
4. Rated at 1 DWPD, the SSD is well suited for read-intensive enterprise deployments that need predictable endurance over years of daily production use without overpaying for unnecessary write headroom.
5. Built with Samsung 48-layer 3D V-NAND TLC and featuring 110 µs typical latency, it balances flash density, cost efficiency, and fast response time for consistent service levels in business-critical applications.
Lower capacity reference: 3.84TB Higher capacity reference: 15.36TB The 7.68TB model sits at the sweet spot of this enterprise SSD family. Compared with the 3.84TB version, it gives much better headroom for data growth, denser VM placement, and longer refresh cycles without changing the expected enterprise-class sequential throughput or random IOPS profile. Compared with the 15.36TB option, it usually delivers a more attractive balance of acquisition cost, usable capacity, and consistent performance per drive. It is especially well suited for mid-scale virtualization clusters, mixed database workloads, or roughly 40 to 60 general-purpose virtual machines per host.
Q: Is MZ-ILS7T60 suitable for a write-heavy database server?
A: It can support mixed-use or moderate write database workloads, but it is not ideal for highly write-heavy servers. With 1 DWPD TLC NAND, higher-endurance enterprise SSDs are better for intensive writes.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: The MZ-ILS7T60 is rated at 1 DWPD, meaning it can sustain one full 7.68TB drive write per day throughout its warranty period, aligned with its 14,016TB TBW 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 power failures, which is critical for enterprise systems requiring data integrity and consistent recovery behavior.
Q: What RAID level is recommended for this SSD?
A: RAID recommendation depends on the application. RAID 10 is typically preferred for databases needing strong performance and redundancy, while RAID 5 or 6 may suit capacity-focused environments with acceptable parity overhead.