861678-B21 HPE 4TB 7.2K RPM LFF SATA 6GBPS SC Hard Drive

Overview of HPE 861678-B21 4TB 6GBPS Hard Drive

The HPE 861678-B21 is a dependable internal hard disk drive engineered for enterprise-class workloads, delivering a balanced combination of capacity, stability, and consistent performance. Designed under the Hewlett Packard Enterprise storage ecosystem, this drive is widely used in data centers, business servers, and scalable storage environments where reliability is essential.

General Information

• Manufacturer:HPE
• Part Number: 861678-B21
• Type: Hot-Swap Hard Drive

Technical Specifications

• Storage Capacity: 4 Terabytes
• Form Factor: 3.5 Inch Large Form Factor 
• Interface Type: SATA 6GBPS
• Sector Size: 512 Bytes
• Carrier Type: Smart Carrier
• Workload Classification: Midline
• Key Feature: Native Command Queuing 
• Included With: HPE Smart Drive Carrier

Dimensions and Weight

• Width: 4 inches
• Depth: 5.8 inches
• Height: 1 inch
• Weight: 1.52 lbs

Design Benefits

• Efficient rack space utilization
• Improved thermal performance in dense setups
• Simplified maintenance and upgrades
• Secure mounting in enterprise chassis

Performance Advantages

• Consistent sequential data handling
• Efficient multi-user access performance
• Reliable operation under continuous workload
• Enhanced system responsiveness in storage-heavy tasks

Details of HPE 861678-B21 4TB 6GBPS Hard Drive 

The HPE 861678-B21 4TB 7.2K RPM LFF SATA 6Gbps SC Midline Hard Drive is an enterprise-class storage solution designed for data centers, SMB infrastructures, and scalable server environments that require dependable high-capacity storage with consistent performance. Built within the Hewlett Packard Enterprise (HPE) Midline drive portfolio, this hard drive is engineered to deliver cost-effective storage density while maintaining the reliability standards expected in mission-critical workloads. It is widely deployed in environments where balanced performance, affordability, and capacity are essential, especially for archival data, backup repositories, and bulk storage applications.

Speed: 7.2K RPM

In addition to capacity, speed is another crucial factor when it comes to hard drives. The HPE 861678-B21 boasts a speed of 7.2K RPM (Rotations Per Minute), which contributes to its overall performance and efficiency.The 7.2K RPM speed of this hard drive enables fast data access, allowing users to retrieve and transfer files quickly. This is especially important for applications that require real-time data processing or frequently access large datasets. With faster read and write speeds, you can expect improved system responsiveness and reduced waiting times, enhancing overall productivity.The high rotational speed of 7.2K RPM ensures that the HPE 861678-B21 Hard Drive delivers excellent performance in demanding environments. It enables faster data retrieval, leading to quicker application response times and improved workflow efficiency. Whether you are working with complex databases, running resource-intensive applications, or performing data analysis, the 7.2K RPM speed ensures smooth and uninterrupted operations.

Interface: SATA 6GBPS

The interface of a hard drive plays a crucial role in determining its compatibility with various systems and devices. The HPE 861678-B21 Hard Drive features a SATA 6Gbps interface, offering several advantages for users.The SATA 6Gbps interface provides a significant increase in data transfer rates compared to its predecessor, SATA 3Gbps. With a maximum transfer rate of 6 gigabits per second (Gbps), users can experience faster file transfers and improved overall system performance. This is particularly beneficial when working with large files or transferring data between multiple drives.

The SATA interface is widely supported by modern computer systems, making the HPE 861678-B21 Hard Drive compatible with a broad range of devices. Whether you are using a desktop computer, server, or external storage enclosure, the SATA 6Gbps interface ensures seamless connectivity and hassle-free installation. This versatility allows users to integrate the hard drive into their existing systems without any compatibility issues.

Form Factor: LFF

The form factor of a hard drive determines its physical dimensions and compatibility with specific drive bays or enclosures. The HPE 861678-B21 Hard Drive features a Large Form Factor (LFF), offering unique benefits to users.The LFF form factor allows for larger physical dimensions compared to smaller form factors like Small Form Factor (SFF). This increased size translates into higher storage density, enabling the hard drive to accommodate more platters and thus provide larger overall storage capacity. With the LFF form factor, users can maximize their storage potential in a single drive bay, eliminating the need for additional enclosures or bays.The larger size of the LFF form factor also contributes to better cooling efficiency. With more space inside the drive, heat dissipation is improved, reducing the risk of overheating and ensuring optimal operating temperatures. This is especially important in environments where multiple drives are densely packed, as it helps maintain the longevity and reliability of the hard drive.

Compatibility

Compatibility is a crucial aspect to consider when choosing a hard drive, as it ensures seamless integration with existing systems and infrastructure. The HPE 861678-B21 Hard Drive is designed specifically for SC Midline compatibility, offering several benefits to users.The SC Midline compatibility ensures that the HPE 861678-B21 Hard Drive is fully optimized to work with SC Midline systems. This compatibility eliminates any potential performance bottlenecks or compatibility issues that could arise when using non-compatible drives. Users can have peace of mind knowing that their hard drive is designed to deliver optimal performance within their specific system environment.

Reliability

Reliability is a key design focus of the HPE 861678-B21. As a Midline drive, it is built for workloads that require sustained operation over long periods rather than extreme transactional intensity. The firmware is tuned for consistent error correction, predictive failure analysis, and workload management optimization.The drive integrates advanced monitoring capabilities that support predictive failure analysis. These systems track operational metrics such as temperature fluctuations, spin-up cycles, and read/write error rates. This data is used to anticipate potential failures before they occur, allowing administrators to proactively replace drives and maintain system integrity.