Samsung MZILT1T6HAJQ0D3 1.6TB PM1645 Series SAS 12Gb/s 2.5 15mm Enterprise Data Center / Mixed Use Solid State Drive

General

Brand	Samsung
Model	PM1645 Series
Capacity	1.6TB
Usage Class	Enterprise Data Center / Mixed Use

Interface

Host Interface	SAS 12Gb/s
Total Interface Bandwidth	12 Gb/s

Physical Dimension

Form Factor	2.5 15mm

Flash & Endurance

NAND Flash	Samsung V-NAND TLC
Drive Writes Per Day	3
Total Bytes Written	8760 TBW

Performance

Sequential Read	2100 MB/s
Sequential Write	2000 MB/s
Random Read IOPS	400000
Random Write IOPS	120000
Average Latency	110 μs

Reliability

Mean Time Between Failures	2.0 Million Hours
Uncorrectable Bit Error Rate	1.0×10⁻¹⁷
Power Loss Protection	Yes

Part Number

MPN	MZILT1T6HAJQ-00007

Engineer's Note

Compared with the earlier MZILT1T6HAJQ-00007, the MZILT1T6HAJQ0D3 is the newer PM1645 1.6TB SAS 12Gb/s revision, delivering a stronger enterprise write-endurance profile with 3 DWPD and 8,760 TBW while sustaining up to 2,100/2,000 MB/s sequential throughput. With Samsung V-NAND TLC and up to 400,000/120,000 random IOPS, it is a particularly strong fit for OLTP databases, virtualization clusters, and mixed read/write storage tiers that need predictable low-latency performance on existing 12Gb SAS infrastructure.

Endurance & Reliability

With an endurance rating of 8,760 TBW and 3 DWPD, the MZILT1T6HAJQ0D3 is designed to sustain intensive daily write workloads throughout its service life. In typical enterprise use, this level of endurance means buyers can deploy it with confidence for write-heavy system, cache, or application storage scenarios without concern about premature wear. For data integrity and operational reliability, this SSD includes power loss protection (PLP), which helps preserve in-flight data and protects mapping tables if power is suddenly interrupted. Its UBER rating of 1.0E-17, together with a 2 million-hour MTBF, reflects enterprise-class reliability with an extremely low probability of uncorrectable bit errors, helping reduce data risk in mission-critical environments.

Technical Specs & Insights

1. The SAS 12Gb/s interface enables seamless drop-in deployment across established enterprise storage backplanes, simplifying maintenance and reducing integration risk in mission-critical servers.
2. Its strong sequential read performance accelerates large-block data access, helping databases, backup platforms, and analytics systems move through heavy datasets faster.
3. High random read capability supports dense virtualization and transaction-heavy workloads, delivering consistently responsive performance when many applications compete for storage access at once.
4. With a 3 DWPD endurance class, this drive is built for write-intensive enterprise use, making it a reliable fit for logging, caching, and mixed-workload environments that run around the clock.
5. Samsung V-NAND TLC combined with low typical latency provides a balanced mix of flash efficiency, predictable responsiveness, and dependable QoS for latency-sensitive business applications.

Capacity Sweet

Reference capacities in the same series for MPN MZILT1T6HAJQ0D3 (1.6TB): Lower capacity: 800GB Higher capacity: 3.2TB Typical enterprise-class performance positioning: Sequential read/write: broadly in line with the 1.6TB model Random read/write IOPS: generally similar within the same series and interface class Capacity positioning analysis: At 1.6TB, this model sits in the sweet spot of the family. Compared with the 800GB version, it offers much better headroom for OS images, logs, hot datasets, and future growth, reducing the risk of early capacity pressure. Compared with the 3.2TB option, it usually delivers a more attractive cost-to-performance balance while keeping enterprise-grade throughput and IOPS. This makes 1.6TB a practical choice for mid-scale deployments, such as a virtualization cluster hosting around 40 to 60 mixed-workload virtual machines.

FAQ