Secure payments
Standard refund policy
Trade Assurance
| Brand | Samsung |
|---|---|
| Model | PM1633a |
| Capacity | 7.68 TB |
| Usage Class | Read Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 |
|---|
| NAND Flash | Samsung V-NAND 3D TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 14016 TBW |
| Sequential Read | 1200 MB/s |
|---|---|
| Sequential Write | 1000 MB/s |
| Random Read IOPS | 200000 |
| Random Write IOPS | 32000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS7T6HCHP-00005 |
|---|
Compared with the earlier MZILS7T6HCHP-00005, the Samsung PM1633a (MZ-ILS7T6A) provides a newer-generation 7.68 TB SAS 12Gb/s platform with a stronger balance of density, 1,200/1,000 MB/s sequential performance, and up to 200,000/32,000 IOPS for easier modernization of existing enterprise SAS storage. Its standout value is the combination of Samsung V-NAND 3D TLC efficiency with enterprise endurance—1 DWPD and 14,016 TBW—making it a particularly strong fit for read-intensive virtualization clusters, scale-out databases, and mixed-use data center workloads that need high capacity without sacrificing reliability.
With an endurance rating of 14,016 TBW and 1 DWPD, the MZ-ILS7T6A is designed to handle writing its full capacity once per day throughout its rated service life, making it well suited for steady enterprise workloads. In typical system boot, application, and mixed read/write environments, this level of endurance provides long-term peace of mind and is more than sufficient for many years of reliable operation. The MZ-ILS7T6A also includes Power Loss Protection (PLP), which helps preserve in-flight data and protects metadata integrity during unexpected power interruptions, reducing the risk of corruption and unplanned downtime. Its enterprise-class UBER of 1.0E-17 and 2 million-hour MTBF further indicate a very low probability of unrecoverable bit errors and strong overall reliability for business-critical deployments.
1. The SAS 12Gb/s interface ensures broad compatibility with enterprise storage backplanes and dual-port server architectures, making the drive easy to deploy in mission-critical arrays without disrupting existing infrastructure.
2. With 1200 MB/s sequential read performance, the SSD accelerates large-block workloads such as backup restores, media streaming, and data warehouse scans, helping shorten batch-processing windows.
3. Its 200,000 random read IOPS capability supports highly concurrent access patterns in virtualized environments and OLTP databases, allowing more users and transactions to be served with consistently fast response.
4. A 1 DWPD endurance rating gives enterprises a balanced write-life profile for mainstream mixed-use workloads, providing predictable longevity for business applications that demand daily reliability without requiring extreme write endurance.
5. Built with Samsung V-NAND 3D TLC and delivering a typical latency of 110 µs, the drive combines cost-efficient flash density with responsive access behavior, making it well suited for latency-sensitive enterprise applications that need both capacity efficiency and stable QoS.
Lower capacity reference: 3.84 TB Higher capacity reference: 15.36 TB At 7.68 TB, the MZ-ILS7T6A sits in the sweet spot of the family. Compared with 3.84 TB, it gives much better headroom for dataset growth, RAID overhead, and workload burstiness without changing the expected enterprise read/write and random IOPS profile. Compared with 15.36 TB, it usually delivers a more attractive cost-per-deployment while avoiding overprovisioning in mid-sized clusters. This makes 7.68 TB especially well suited for a 2U virtualization or database node needing 8 to 12 SSDs for balanced capacity, performance, and budget.
Q: Is MZ-ILS7T6A suitable for a write-heavy database server?
A: MZ-ILS7T6A can support mixed-use and moderate write-intensive database workloads, thanks to its 1 DWPD rating and 14,016 TBW. For extremely write-heavy environments, a higher-endurance enterprise SSD may be better.
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 7.68 TB drive write per day throughout its warranty period, within the specified enterprise operating conditions.
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 mapping tables during sudden outages, which is critical for preventing corruption and maintaining storage reliability in servers.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 10 is ideal for high database performance and redundancy, while RAID 5 or RAID 6 offers better usable capacity for balanced workloads.