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| Brand | Samsung |
|---|---|
| Model | PM1633a |
| Capacity | 3.84 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 | 7008 TBW |
| Sequential Read | 1200 MB/s |
|---|---|
| Sequential Write | 1000 MB/s |
| Random Read IOPS | 200000 |
| Random Write IOPS | 37000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILS3T8HCJM-00005 |
|---|
Compared with the previous-generation MZILS3T8HCJM-00005, the PM1633a MZ-ILS3T8N advances to Samsung V-NAND 3D TLC and delivers a stronger balance of 3.84 TB density, 7008 TBW endurance, and SAS 12Gb/s throughput with up to 1200/1000 MB/s and 200,000/37,000 IOPS. This makes it a more compelling choice for read-centric virtualized infrastructure, enterprise databases, and capacity-optimized SAN tiers that need predictable SAS reliability with better performance-per-drive in the same class.
With an endurance rating of 7008 TBW and 1 DWPD, the MZ-ILS3T8N is designed to handle writing its full 3.84 TB capacity every day over a standard enterprise service life, which is far beyond the needs of a typical OS, boot, or application drive. In practical terms, under normal server system-disk and general enterprise workloads, this level of endurance provides long-term, worry-free operation and ample write headroom for many years of use. Its built-in power loss protection (PLP) helps preserve data in transit during an unexpected power interruption, reducing the risk of corruption and improving system integrity in enterprise environments. An UBER of 1.0E-17 means the drive is engineered for an extremely low unrecoverable bit error rate, giving procurement teams added confidence in data reliability for business-critical deployments.
1. The SAS 12Gb/s interface, paired with 1200 MB/s sequential read performance, enables fast and predictable bulk data movement for database backups, media streaming, and large-scale virtualization workloads.
2. With 200,000 K random read IOPS, the drive can sustain heavy concurrent access from OLTP databases and VDI environments without becoming a read bottleneck.
3. A 1 DWPD endurance rating makes it well suited for mixed-use enterprise deployments that need reliable daily overwrite capability across the warranty period.
4. Built on Samsung V-NAND 3D TLC, the SSD balances capacity, power efficiency, and cost, making it a practical choice for dense data center storage tiers.
5. The 110 µs typical latency helps shorten application response time and improves QoS consistency for latency-sensitive transactional and virtualized workloads.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB At 3.84 TB, the MZ-ILS3T8N sits in the sweet spot of the series. Compared with the 1.92 TB model, it gives much better headroom for dataset growth, VM sprawl, and overprovisioning flexibility without changing the expected enterprise read/write and random IOPS profile. Compared with the 7.68 TB option, it delivers a more efficient cost-to-usable-capacity balance while keeping performance essentially in the same class. This makes 3.84 TB especially well suited for mid-scale virtualization clusters, mixed database nodes, or dense application servers serving roughly 40 to 80 business workloads.
Q: Is MZ-ILS3T8N suitable for a write-heavy database server?
A: MZ-ILS3T8N is better suited for mixed-use enterprise workloads rather than very write-heavy databases. With 1 DWPD, it can handle steady writes, but higher-endurance SSDs are preferable for intensive database logging.
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 supports one full 3.84 TB drive write per day over its warranty period. Its total endurance is specified at 7008 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 power failures, which is critical for enterprise systems requiring data integrity and transactional consistency.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive enterprise environments, especially databases and virtualization. It provides strong read/write performance, redundancy, and faster rebuilds than parity-based RAID levels.