400-ASSI Dell 1.8TB SAS 10K RPM Hot-plug SFF Hard Drive

Overview of Dell 1.8TB SAS 12Gb/s 10K RPM HDD 

The Dell 400-ASSI is a high-performance 1.8TB enterprise-class SAS hard drive designed for mission-critical server environments. Built for speed, reliability, and seamless integration, it delivers consistent data access and optimized performance for modern data center infrastructures.

Product Identification

• Brand: Dell
• Part Number: 400-ASSI
• Product Type: Enterprise Hard Disk Drive
• Category: Server-Grade Storage Solution

Technical Specifications

• Storage Capacity: 1.8TB
• Spindle Speed: 10,000 RPM for high-speed access
• Interface Standard: SAS 12Gb/s high-bandwidth connection
• Data Transfer Rate: Up to 1200 Mbps external throughput
• Form Factor: 2.5-inch small form factor (SFF)
• Advanced Format: 512e sector technology

Key Advantages

• High-speed 10K RPM spindle rotation for rapid data retrieval
• Optimized SAS 12Gb/s interface for reduced latency
• Stable throughput for enterprise workloads

Reliability & Hot-Swap Capability

• Hot-plug support for uninterrupted system maintenance
• Enterprise-grade durability for continuous 24/7 operation
• Designed for mission-critical server environments

Physical Specifications

• Drive Size: 2.5-inch SFF design
• Compact structure optimized for high-density server racks
• Lightweight construction for efficient deployment

Compatible HPE ProLiant Server Series

• BL Series:BL420c, BL460c, BL465c, BL660c (Gen8/Gen9) 
• DL Series:DL20, DL60, DL80, DL120, DL160, DL180, DL320e, DL360, DL380, DL560, DL580 
• ML Series:ML110, ML150, ML310e, ML350 variants 
• SL Series:SL230s, SL250s, SL270s 
• XL Series:XL170r, XL190r, XL220a, XL230a, XL250a

Details of Dell 1.8TB SAS 12Gbps Hot-Plug HDD

The Dell 400-ASSI 1.8TB SAS 12Gbps 10K RPM Hot-Plug SFF Hard Drive category represents a high-performance enterprise storage solution designed specifically for mission-critical server environments, data centers, virtualization platforms, and business storage infrastructures that require consistent reliability, fast data throughput, and scalable storage capacity. Built on the Serial Attached SCSI (SAS) interface standard, this class of hard drives delivers enterprise-grade durability combined with high rotational speed and optimized I/O performance, making it suitable for workloads where latency sensitivity and sustained read/write operations are critical.

As part of Dell’s enterprise storage portfolio, the 400-ASSI series is engineered for compatibility with Dell PowerEdge servers and storage arrays. The 1.8TB capacity variant provides a balanced combination of storage density and performance efficiency, allowing organizations to maximize rack utilization while maintaining predictable performance metrics under heavy workloads.

Advantages

One of the defining features of the Dell 400-ASSI series is its 12Gbps SAS interface, which significantly enhances data throughput compared to older SAS 6Gbps or SATA-based storage solutions. This high-speed interface enables faster communication between the storage device and the server controller, reducing bottlenecks in data-intensive applications such as database management, virtualization, and analytics processing.

Speed and Performance 

The 10,000 RPM spindle speed of the Dell 400-ASSI hard drive strikes a balance between performance and durability. While not as fast as 15K RPM drives, 10K RPM models offer lower heat output, reduced power consumption, and improved longevity while still delivering strong performance for enterprise workloads.

This rotational speed allows the drive to handle both random and sequential data access efficiently. Random workloads, common in transactional databases and virtualization systems, benefit from reduced seek times, while sequential workloads such as backup and media streaming benefit from sustained throughput capabilities.

Hot-Plug Design and Flexibility

Hot-plug capability allows administrators to replace or add drives without shutting down the server. This feature is essential in enterprise environments where downtime must be minimized. The Dell 400-ASSI drives support hot-swapping within compatible Dell PowerEdge systems, ensuring uninterrupted operations during maintenance or hardware upgrades.

The 2.5-inch SFF design enables higher drive density compared to traditional 3.5-inch drives. This is particularly beneficial in blade servers and rack-mounted systems where space optimization directly impacts scalability and operational efficiency.

Compatibility and Integration

The Dell 400-ASSI 1.8TB SAS drive is engineered for seamless integration with Dell PowerEdge servers, ensuring firmware compatibility, optimized performance tuning, and reliable detection within RAID controllers and storage backplanes.

RAID Controller Optimization

These drives are fully compatible with Dell PERC RAID controllers, enabling administrators to configure RAID 0, RAID 1, RAID 5, RAID 10, and other enterprise RAID levels depending on redundancy and performance requirements. This flexibility allows businesses to tailor storage configurations to specific workload demands.

Dell enterprise drives include firmware optimized for long-term stability and predictable performance behavior. This reduces the risk of unexpected drive failures and ensures consistent performance across large-scale deployments.

Database Management Systems

Relational databases such as SQL Server, Oracle, and MySQL benefit significantly from the low latency and high IOPS performance of 10K RPM SAS drives. These drives support fast transaction processing and efficient query handling in data-intensive applications.

Reliability and MTBF Standards

Enterprise SAS drives like the Dell 400-ASSI series are designed with high MTBF ratings, often exceeding one million hours. This ensures long-term operational reliability even under continuous heavy workloads.

In dense storage arrays, vibration can significantly impact drive performance and lifespan. The Dell 400-ASSI drives are engineered with rotational vibration sensors and damping mechanisms to maintain stability in multi-drive enclosures.

SATA Storage Solutions

While solid-state drives (SSDs) offer superior performance in terms of latency and throughput, SAS HDDs like the Dell 400-ASSI provide a more cost-effective solution for large-scale enterprise storage deployments where budget constraints are a consideration.

Many organizations deploy hybrid storage systems that combine SSDs for high-performance caching with SAS HDDs for bulk data storage. This approach maximizes performance while controlling infrastructure costs.

Compared to SATA drives, SAS drives offer better reliability, dual-port connectivity, faster spindle speeds, and superior command queuing capabilities, making them more suitable for enterprise workloads.

Data Center Optimization and Scalability

The SFF design allows data centers to scale storage capacity efficiently without requiring additional rack space. This is crucial in environments where physical expansion is limited.

Despite being mechanical drives, the Dell 400-ASSI series is optimized for power efficiency relative to performance output, helping reduce operational energy costs in large deployments.

Enterprise storage systems utilize multiple drives in parallel to distribute workloads evenly, improving performance consistency and reducing wear on individual drives