400-BEJR Dell 12TB 7.2K RPM SAS-12GBPS 256MB 512E LFF Hard Drive

Overview of Dell 400-BEJR 12TB 7.2K RPM SAS-12GBPS HDD

The Dell 400-BEJR 12TB enterprise-class hard drive is engineered for reliability, large-scale data storage, and consistent performance in server environments. Designed with a 3.5-inch form factor and hot-plug capability, this drive is ideal for modern data centers and high-demand workloads.

General Specifications

• Manufacturer: Dell
• Part Number: 400-BEJR
• Device Type: Hard Disk Drive

Technical Specifications

• Capacity: 12 Terabytes
• Form Factor: 3.5-inch LFF
• Sector Format: 512e
• Interface Type: SAS 12Gbps
• Cache Memory: 256MB
• Buffer Size: 256MB
• Spindle Speed: 7200 RPM
• Average Latency: 4.16 ms
• Read Speed: Up to 243 MB/s
• Write Speed: Up to 255 MB/s
• Read Seek Time: 8.0 ms (typical)
• Write Seek Time: 8.6 ms (typical)

Connectivity and Expansion

• 1 x SAS 12Gbps interface connection
• Supports 3.5-inch hot-swap drive bays

Dell PowerEdge Systems

• PowerEdge C6420
• PowerEdge R440
• PowerEdge R540
• PowerEdge R640
• PowerEdge R740
• PowerEdge R740xd
• PowerEdge R6415
• PowerEdge R7415
• PowerEdge R7425

The Dell 400-BEJR 12TB 7.2K RPM SAS-12GBPS Hard Drive

The Dell 400-BEJR 12TB 7.2K NL SAS-12Gbps 512e 256MB 3.5-inch hot-plug hard drive with 14G tray represents a powerful storage solution designed for enterprise environments where capacity, reliability, and consistent performance are critical. This category of nearline SAS (NL-SAS) drives occupies a unique position between traditional SATA drives and high-performance SAS drives, offering an ideal balance between cost efficiency and data throughput. Built for demanding workloads, these drives are frequently deployed in data centers, virtualization environments, backup infrastructures, and large-scale storage arrays.

SAS Technology in Enterprise Storage

Nearline SAS technology combines the high capacity characteristics of SATA drives with the robust interface and reliability advantages of SAS. The Dell 400-BEJR model leverages a 12Gbps SAS interface, ensuring faster data transfer rates compared to SATA-based solutions. This enables businesses to handle large volumes of data more efficiently while maintaining system responsiveness. Unlike standard desktop drives, NL SAS drives are engineered for 24/7 operation, making them suitable for continuous workloads in enterprise environments. The integration of SAS technology allows for dual-port connectivity, which enhances redundancy and failover capabilities. This feature is especially valuable in mission-critical systems where downtime must be minimized. By enabling two independent data paths, the drive ensures uninterrupted access to data even if one path fails.

12TB Storage

The 12TB capacity offered by this category provides substantial storage space for organizations managing large datasets. Whether used for archiving, backup, or active data storage, this capacity reduces the need for multiple drives, simplifying infrastructure and lowering total cost of ownership. Enterprises dealing with big data analytics, media storage, or cloud computing benefit significantly from such high-capacity drives. In addition to raw capacity, the drive supports efficient data organization and scalability. Storage administrators can integrate these drives into RAID configurations to improve performance and data protection. The large capacity also allows for better consolidation of workloads, reducing hardware complexity and energy consumption.

7.2K RPM Drives

Operating at 7,200 revolutions per minute, the Dell 400-BEJR hard drive delivers consistent and reliable performance suitable for nearline storage applications. While not as fast as 10K or 15K RPM drives, the 7.2K RPM speed is optimized for workloads that prioritize capacity over ultra-high speed. This makes it ideal for sequential data access patterns, such as backups, streaming, and large file transfers. The inclusion of a 256MB cache further enhances performance by temporarily storing frequently accessed data, reducing latency and improving read and write speeds. This cache plays a crucial role in smoothing out data access operations, especially in environments with mixed workloads.

512e Sector Format Advantages

The 512e (512 emulation) sector format is designed to provide compatibility with legacy systems while benefiting from the efficiency of larger physical sectors. This hybrid approach allows organizations to transition to advanced storage technologies without compromising compatibility with existing infrastructure. By using larger physical sectors, the drive improves error correction capabilities and increases overall storage efficiency. This results in better data integrity and reduced risk of data corruption, which is essential for enterprise environments handling sensitive information.

Hot-Plug Functionality 

One of the defining features of this category is its hot-plug capability. The Dell 400-BEJR hard drive can be inserted or removed from a system without shutting it down, enabling seamless maintenance and upgrades. This feature is particularly important in data centers where uptime is critical, as it minimizes disruptions during hardware replacements or expansions. The inclusion of the 14G tray ensures compatibility with Dell PowerEdge servers, providing a secure and reliable mounting solution. The tray design facilitates easy installation and removal, reducing the time required for maintenance tasks and improving operational efficiency.

Dell Power Servers

This category of drives is specifically designed to integrate seamlessly with Dell PowerEdge 14th generation servers. The compatibility ensures optimal performance and reliability, as the drive is engineered to meet Dell’s stringent quality standards. The 14G tray not only simplifies installation but also enhances airflow and cooling within the server chassis. By using certified Dell components, organizations can ensure better system stability and support. This reduces the risk of compatibility issues and simplifies troubleshooting, leading to more efficient IT operations.

Enterprise Environments

Scalability is a key consideration for modern businesses, and the Dell 400-BEJR category supports this requirement effectively. Organizations can expand their storage capacity incrementally by adding more drives to their existing infrastructure. This modular approach allows for flexible growth without the need for significant upfront investment. In large-scale deployments, these drives can be combined in storage arrays to create high-capacity storage pools. This enables efficient data management and supports advanced features such as tiered storage, where data is automatically moved between different storage tiers based on usage patterns.

Reliability and Durability 

Enterprise hard drives must withstand demanding operating conditions, and the Dell 400-BEJR is built to deliver exceptional reliability. Designed for continuous operation, the drive features robust components and advanced error correction mechanisms to ensure data integrity over time. The drive’s mean time between failures (MTBF) is significantly higher than that of consumer-grade drives, reflecting its suitability for enterprise use. This reliability reduces the likelihood of unexpected failures, minimizing downtime and protecting critical data.