HUSMR1616ASS200 Western Digital 1.6TB SAS 12GBPS 1600mr MLC 2.5 Inch SSD.

Product Overview of Western Digital 1.6TB SAS 12GBPS SSD

The HUSMR1616ASS200 model from Western Digital exemplifies this category: a 1.6 TB, 12 Gbps SAS, MLC (multi-level cell) 2.5‑inch SSD tailored for mission-critical workloads.Within the broader category of enterprise SSDs, SAS models bridge legacy infrastructure and next-generation performance, offering data centers and organizations a path toward accelerated I/O, predictable latency, and strong endurance.

General Information

• Manufacturer: Western Digital
• Part Number: HUSMR1616ASS200
• Device Type: High-performance Solid State Drive

Technical Specifications

• Total Capacity: 1.6TB
• Drive Interface: SAS 12GBPS
• Drive Form: Compact 2.5 Inch
• Flash Memory Technology : MLC
• MTBF : 2.5 Million Hours

Advanced Flash Technology

Multi-Level Cell (MLC) Architecture

• Utilizes durable MLC NAND flash for reliable performance and endurance
• Optimized for read-intensive workloads and enterprise-grade applications

Built for Longevity

• Engineered for up to 2.5 million hours MTBF – reducing maintenance downtime
• Ideal for continuous operation in data centers, high-demand systems, and virtualized environments

Exceptional Performance Metrics

Sequential Data Speeds

• Read Throughput (64K): Reaches up to 1100 MB/s for fast data retrieval
• Write Throughput (64K): Delivers speeds up to 700 MB/s for efficient data handling

Random I/O Capabilities

• 4KB Random Read: Peaks at 130,000 IOPS – ensuring low latency and responsiveness
• 4KB Random Write: Achieves up to 30,000 IOPS – supporting sustained workloads

Designed for Demanding Enterprise Workloads

• Perfect for server storage arrays, transactional databases, and virtualization platforms
• Optimized to handle data-intensive operations with precision and speed

Compact Yet Powerful

• 2.5-inch form factor enables compatibility with various enterprise chassis
• High-density capacity in a small footprint, saving valuable rack space

Reliable Performance in Every Operation

• Built for 24/7 workloads across demanding enterprise and cloud infrastructures
• Delivers consistent and efficient throughput with minimal latency

Optimal Storage Solution for:

• Mission-critical systems
• High-performance computing
• Large-scale database management
• Virtual machines and storage arrays

Interface and Compatibility

SAS 12Gbps for Enterprise Connectivity

• Supports high-speed data pipelines with error correction and integrity features
• Backward compatible with 6Gbps SAS infrastructure

Interface Classes: SAS, NVMe, SATA

Enterprise SSDs divide primarily by interface:

• SAS SSDs: Provide robust command-level error correction, dual-port redundancy, and compatibility with data center backplanes.
• NVMe SSDs: Leverage PCIe lanes for ultra-low latency and parallelism, often deployed in modern servers.
• SATA SSDs: Typically used for cost-sensitive or read-heavy workloads; not ideal for the highest performance tier.

Among these, SAS remains significant for environments with existing SAS infrastructure or where dual-port availability and enterprise-level features are required.

Endurance & Flash Type: SLC, MLC, eMLC, TLC

Solid‑state drives differ by flash cell design:

• SLC (Single-Level Cell): Highest endurance and performance, expensive and limited in capacity.
• MLC (Multi-Level Cell): Balances cost, capacity, and reliability—commonly seen in enterprise-class SSDs like the 1600mr series.
• eMLC (Enterprise MLC): A variant of MLC optimized for heavier write loads.
• TLC (Triple-Level Cell): Higher density per chip but generally lower endurance, suited for read-intensive or capacity-centric deployments.

The HUSMR1616ASS200 adopts true MLC engineering to sustain endurance in write-heavy yet critical applications.

Sequential Throughput Metrics

Sequential performance represents sustained data transfer capacity under large block load:

• **Read (64 KB):** Up to 1,100 MB/s throughput for large sequential reads
• **Write (64 KB):** Up to 700 MB/s throughput under ideal conditions

Random I/O and Latency Optimization

Enterprise SSDs are often evaluated by random I/O performance, since mixed workloads consist of many concurrent small reads and writes:

• **4 KB Random Read:** Up to 130,000 IOPS—delivering snappy access even under load
• **4 KB Random Write:** Up to 30,000 IOPS—enabling serviceability for write-intensive bursts

Reliability & Endurance Features

Beyond raw performance, the drive is designed with features to preserve data integrity and longevity:

• Wear-leveling algorithms and ECC (error correction codes) to manage cell aging
• Background garbage collection and overprovisioning to maintain consistent speed as the drive fills
• Power-loss protection or graceful shutdown features (in many enterprise-class SSDs) to avoid data corruption on sudden blackouts
• SAS dual-port redundancy for failover and high availability setups

Enterprise SAS Solid‑State Drives: The HUSMR1616ASS200 Class