| 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-00007 advances to Samsung V5 (9xL) TLC and the PM1643a platform, delivering a faster 2100/2000 MB/s throughput profile and up to 450,000 random-read IOPS while sustaining enterprise-grade 1 DWPD and 7008 TBW at 3.84 TB. This makes it a strong drop-in SAS 12Gb/s upgrade for database, virtualization, and shared storage tiers that need better read-side responsiveness and more balanced sequential performance than older same-capacity SAS TLC SSDs without changing the host interface.
With an endurance rating of 7008 TBW and 1 DWPD, the MZILT3T8HBLS-00007 is designed to handle writing its full capacity once per day throughout its rated service life, which is more than sufficient for typical enterprise boot, OS, and mixed-read server workloads. In practical terms, under common system-disk or light-to-moderate application workloads, this level of endurance supports many years of stable use with substantial write headroom, giving procurement teams confidence in long-term deployment. This drive also includes power loss protection (PLP), which helps preserve in-flight data and metadata during an unexpected power interruption, reducing the risk of corruption and improving system integrity. Combined with an ultra-low UBER of 1.0E-17 and a 2 million hour MTBF, it delivers enterprise-class data reliability and predictable operation for business-critical environments.
1. The SAS 12Gb/s interface ensures seamless drop-in compatibility with dual-controller enterprise storage arrays, simplifying HA deployments and reducing integration risk in mission-critical environments.
2. Its strong sequential read bandwidth accelerates backup restores, large database scans, and analytics jobs, helping data-intensive platforms move bulk data with less waiting.
3. High random read performance, paired with microsecond-class typical latency, enables faster VM boot storms, snappier OLTP access, and more consistent responsiveness under mixed enterprise workloads.
4. A 1 DWPD endurance profile is well aligned with read-centric business applications, giving operators predictable lifespan and lower replacement pressure in always-on datacenter use.
5. Samsung V5 (9xL) TLC NAND balances capacity, cost efficiency, and reliability, making it a practical choice for enterprise fleets that need dependable performance at scale.
Lower capacity reference: 1.92 TB Higher capacity reference: 7.68 TB Capacity positioning analysis: The 3.84 TB model is the sweet spot in this SSD family. Compared with the 1.92 TB version, it offers much better capacity headroom for operating systems, application data, logs, and future growth, reducing the risk of early space constraints. Compared with the 7.68 TB version, it usually delivers a more balanced acquisition cost while maintaining essentially the same enterprise-class throughput and IOPS profile. It is especially well suited for mid-sized virtualization clusters, such as shared storage for about 40 to 60 mixed-workload virtual machines or a compact database tier.
Q: Is MZILT3T8HBLS-00007 suitable for a write-heavy database server?
A: It can support database workloads, but with 1 DWPD and 7008 TBW, it is better suited for mixed-use or moderate write-intensive environments rather than extremely write-heavy, high-churn database servers.
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 handle one full 3.84 TB drive write per day throughout its warranty period, within the specified endurance limits.
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 outages, which is critical for data integrity, consistency, and enterprise storage reliability.
Q: What RAID level is recommended for this SSD?
A: RAID 10 is typically recommended for this SSD in performance-sensitive and transactional environments, as it provides strong redundancy and fast rebuild performance. RAID 5 or 6 may suit capacity-focused use cases.