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| Brand | Samsung |
|---|---|
| Model | PM1643a |
| Capacity | 3.84 TB |
| Usage Class | Enterprise/Read-Intensive |
| Host Interface | SAS 12Gb/s |
|---|---|
| Total Interface Bandwidth | 12 Gb/s |
| Form Factor | 2.5 inch 15mm |
|---|
| NAND Flash | Samsung V5 (9xL) TLC |
|---|---|
| Drive Writes Per Day | 1 |
| Total Bytes Written | 7008 TBW |
| Sequential Read | 2100 MB/s |
|---|---|
| Sequential Write | 2000 MB/s |
| Random Read IOPS | 450000 |
| Random Write IOPS | 40000 |
| Average Latency | 110 μs |
| Mean Time Between Failures | 2 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | Yes |
| MPN | MZILT3T8HALE-00007 |
|---|
Compared with MZILT3T8HALE-00007, the MZILT3T8HBLS PM1643a advances to Samsung V5 (9xL) TLC, delivering a clear generational upgrade in flash density and platform efficiency while maintaining enterprise endurance at 1 DWPD and 7008 TBW. With 3.84 TB in a 12Gb/s SAS footprint and performance up to 2100/2000 MB/s and 450,000/40,000 IOPS, it is the stronger drop-in choice for mixed read-centric virtualization, database, and mission-critical server workloads that need more throughput per slot than the previous generation.
With an endurance rating of 7,008 TBW and 1 DWPD, the MZILT3T8HBLS is built to handle sustained daily write activity far beyond the needs of a typical OS, boot, or application drive. In practical terms, under normal enterprise system-disk workloads, this level of endurance supports many years of stable use and provides ample write headroom for long-term deployment planning. For enterprise reliability, built-in Power Loss Protection (PLP) helps preserve in-flight data and metadata if power is suddenly interrupted, reducing the risk of corruption and unplanned recovery events. Its UBER of 1.0E-17 and 2 million-hour MTBF further indicate a very high standard of data integrity and operational dependability, giving procurement teams added confidence for business-critical environments.
1. The SAS 12Gb/s interface pairs enterprise-grade dual-port reliability with enough host bandwidth to keep storage online and responsive in mission-critical servers and shared arrays.
2. Its strong sequential read performance accelerates large-block workloads such as database backups, analytics scans, and VM image loading, reducing time-to-data for enterprise applications.
3. The high random read capability enables fast response under heavily concurrent access patterns, making it well suited for OLTP databases, virtual desktop farms, and metadata-intensive platforms.
4. A 1 DWPD endurance rating provides predictable day-after-day write tolerance for mainstream enterprise workloads, balancing service life, fleet stability, and storage cost efficiency.
5. Built on Samsung V5 (9xL) TLC NAND, the drive delivers a mature mix of density, consistency, and power-efficient operation that fits high-capacity enterprise deployments without sacrificing reliability.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB In this series, the 3.84 TB model is the practical sweet spot. Compared with the 1.92 TB option, it gives much more headroom for OS images, application growth, snapshots, and short-term data bursts, reducing the need for early capacity expansion. Compared with the 7.68 TB version, it usually delivers the best balance of acquisition cost, usable capacity, and enterprise-grade performance consistency, since sequential throughput and random IOPS remain broadly similar across capacities. It is well suited for a mid-sized virtualization cluster, such as boot and utility storage for about 40 to 60 virtual machines.
Q: Is MZILT3T8HBLS suitable for a write-heavy database server?
A: MZILT3T8HBLS is better suited for mixed-use enterprise workloads rather than highly write-heavy databases. With 1 DWPD and 7008 TBW, it handles steady writes well, but intensive write environments may require higher-endurance SSDs.
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 can support one full drive write per day across its warranty period. For 3.84 TB capacity, that equals about 3.84 TB of writes daily.
Q: Does it include power loss protection (PLP) and why is that critical?
A: Yes, it includes power loss protection. PLP is critical because it helps preserve in-flight data and metadata during unexpected power failures, reducing corruption risk and improving reliability in enterprise servers.
Q: What RAID level is recommended for this SSD?
A: The recommended RAID level depends on your priority. RAID 10 is typically preferred for database and virtualization workloads, while RAID 5 or 6 may be used when balancing capacity, protection, and cost.