400-AXFF Dell 1TB 7.2K RPM 2.5Inch Near Line SAS 12GBPS 128MB Buffer 512N Hot HDD

Dell 400-AXFF 1TB 7.2K RPM 2.5Inch HDD

The Dell 400-AXFF is a reliable enterprise-grade hard disk drive engineered for consistent performance, scalability, and seamless integration with Dell PowerEdge servers. This storage solution offers advanced features designed to meet modern data center requirements.

General Details

Manufacturer Specifications

• Brand: Dell
• Part Number: 400-AXFF
• Device Category: Hard Disk Drive

Technical Attributes

• Storage Capacity: 1 Terabyte
• Interface: SAS 12Gbps
• Form Factor: 2.5-Inch
• Format Type: Advanced Format 512n

Performance Highlights

Speed and Transfer Rate

• External Data Transfer Rate: 1.2 Gbps
• Spindle Speed: 7200 RPM

Expansion and Connectivity

Interface Options

• 1 x SAS 12Gbps Port

Bay Compatibility

• Hot-Plug Support: 2.5-Inch Bay

Server Compatibility

Supported Dell PowerEdge Models

Rack Servers

• PowerEdge R440
• PowerEdge R640
• PowerEdge R6415
• PowerEdge R740
• PowerEdge R740xd
• PowerEdge R7415
• PowerEdge R7425
• PowerEdge R840
• PowerEdge R940
• PowerEdge R940xa

Cloud and High-Density Servers

• PowerEdge C6420

400-AXFF 1TB 7.2K RPM 2.5Inch Hard Disk Drive Overview

The Dell 400-AXFF 1TB 7.2K RPM 2.5 Inch Near Line SAS 12Gbps hard drive category represents a specialized class of enterprise storage solutions designed for organizations that demand consistent performance, data reliability, and long-term operational stability. This category focuses on near line Serial Attached SCSI drives that balance capacity, speed, and endurance, making them suitable for mixed-use workloads, archival tasks, and data-intensive business environments. Dell-engineered near line SAS hard drives are commonly deployed in enterprise servers, data centers, and scalable storage infrastructures where dependable throughput and compatibility with Dell systems are critical.

Near line SAS hard drives like the Dell 400-AXFF are positioned between high-performance enterprise SAS drives and cost-efficient SATA drives. They are engineered to deliver higher reliability and command set advantages of SAS while offering larger capacities and cost-effective storage per gigabyte. This category supports businesses that require continuous data access, sustained read and write operations, and compatibility with advanced RAID configurations without the expense of ultra-high-speed enterprise SSDs.

Enterprise Storage Architecture and Near Line SAS Positioning

The Dell 400-AXFF category plays a vital role in modern enterprise storage architecture. Near line SAS drives are designed for environments where data must remain online and readily accessible, yet not necessarily at the highest transactional speed. These drives are frequently used in secondary storage tiers, backup repositories, virtualization platforms, and large-scale data pools where consistent performance is more valuable than peak IOPS.

Within Dell server ecosystems, near line SAS drives integrate seamlessly with PowerEdge servers and compatible storage controllers. The 12Gbps SAS interface provides a robust data path that supports high aggregate throughput, particularly in multi-drive configurations. This makes the category ideal for enterprises that rely on predictable performance under sustained workloads, such as database replication, file serving, and enterprise resource planning systems.

Role of SAS Interface in Enterprise Environments

The Serial Attached SCSI interface is a defining characteristic of the Dell 400-AXFF category. SAS technology offers advantages over consumer-grade interfaces by supporting dual-port connectivity, advanced error correction, and higher signaling reliability. These features contribute to improved fault tolerance and system resilience, which are essential in mission-critical IT environments.

Near line SAS drives within this category benefit from the enterprise-grade command set that allows for better queue management and more efficient data handling. This ensures stable operation in multi-user environments where numerous read and write requests occur simultaneously. The SAS interface also enhances compatibility with enterprise RAID controllers, enabling data protection strategies that reduce downtime and data loss risks.

Storage Capacity and Data Density Characteristics

The Dell 400-AXFF category emphasizes balanced storage capacity, with 1TB being a practical choice for organizations managing moderate to large datasets. This capacity level supports a wide range of applications, including log storage, application data, backup snapshots, and media repositories. By offering substantial capacity in a compact 2.5 inch form factor, this category enables higher drive density within server chassis and storage enclosures.

Higher data density translates into improved space efficiency, which is particularly valuable in data centers with limited rack space. Deploying multiple near line SAS drives allows organizations to scale storage incrementally while maintaining consistent performance and reliability. The category is well-suited for businesses that require predictable expansion paths without redesigning their storage infrastructure.

Performance and Rotational Speed Advantages

The Dell 400-AXFF category features a rotational speed of 7,200 RPM, which strikes a balance between performance and energy efficiency. This speed is optimized for near line workloads that require steady data access rather than ultra-low latency. The performance profile supports reliable throughput for sequential and mixed read and write tasks commonly found in enterprise environments.

By combining 7.2K RPM rotational speed with a 12Gbps SAS interface, this category delivers consistent data transfer rates that meet the demands of multi-user applications. It ensures that storage performance remains predictable even under sustained workloads, which is essential for maintaining service-level agreements and operational continuity.

128MB Buffer and Data Handling Efficiency

The inclusion of a 128MB buffer enhances the performance characteristics of the Dell 400-AXFF category. The buffer acts as temporary storage that improves data handling efficiency during read and write operations. This results in smoother performance during burst workloads and reduces latency in environments with fluctuating access patterns.

In enterprise applications, buffer memory plays a critical role in optimizing throughput and minimizing delays. The buffer supports intelligent caching mechanisms that improve overall system responsiveness, particularly when multiple applications access the same storage resources concurrently.

Reliability Standards and Enterprise-Grade Durability

The Dell 400-AXFF category is engineered to meet strict enterprise reliability standards. Near line SAS drives are built to handle sustained workloads over extended periods, making them suitable for always-on environments. Rigorous testing ensures consistent performance and durability under demanding operating conditions.

Reliability is further supported by advanced firmware features that monitor drive health and proactively manage potential issues. These features contribute to reduced failure rates and improved data protection, aligning with enterprise requirements for dependable storage solutions.

Compatibility with Dell Server Ecosystems

The Dell 400-AXFF category is optimized for use within Dell server ecosystems, including PowerEdge servers and compatible storage platforms. This ensures seamless integration, consistent performance, and simplified deployment. Dell-certified drives undergo extensive validation to guarantee compatibility with firmware, controllers, and management software.

Using Dell-certified near line SAS drives reduces the risk of compatibility issues and ensures that systems operate as intended. This category supports standardized deployment strategies that simplify procurement, maintenance, and lifecycle management.