HP 861590-B21

Overview

The HP 861590-B21 is an 8TB internal hard drive designed for servers and storage arrays that require a balance of capacity, performance, and uptime. It features a 12 Gb/s Serial Attached SCSI (SAS) interface for fast data transfer, making it suitable for streaming large backup sets, running online transaction processing, or supporting virtual machines. With a rotational speed of 7200 RPM and an average seek time of 8 ms, this drive ensures applications start quickly and respond smoothly even under heavy workloads.

Its 3.5-inch form factor fits seamlessly into HP ProLiant systems and other standard SAS backplanes. The hot-swappable design allows for drive replacement or addition without shutting down the server, minimizing downtime in critical environments. Built with midline engineering, it emphasizes high availability and data integrity, making it a reliable choice for file servers, analytics nodes, media archives, and other demanding storage needs.

Key features

• Large 8TB capacity to store extensive databases, backups, and multimedia files without frequent upgrades
• High-bandwidth 12 Gb/s SAS interface that supports demanding workloads with fast data flow
• 7200 RPM rotational speed delivers consistent and dependable throughput for steady performance
• Hot-swappable design enables drive replacement or expansion without interrupting server operation
• Average seek time of 8 ms reduces latency, helping applications respond quickly during peak demand
• Midline construction prioritizes data integrity and high availability for business-critical environments
• 3.5-inch form factor ensures compatibility with standard enterprise drive bays and simplifies integration

Key specs

• Capacity: 8 TB
• Interface: 12 Gb/s Serial Attached SCSI (SAS)
• Rotational speed: 7200 RPM
• Average seek time: 8 ms
• Form factor: 3.5-inch
• Hot-swappable: Yes

Connectivity and compatibility

This hard drive connects via a 12 Gb/s SAS interface, which is widely supported in enterprise-grade servers and storage arrays. It fits into standard 3.5-inch drive bays, making it compatible with HP ProLiant systems and other industry-standard SAS backplanes. The hot-swappable feature allows IT teams to maintain and upgrade storage without downtime, which is essential for environments that require continuous availability.

Ideal uses and environments

The HP 861590-B21 is well suited to environments where large-scale storage capacity and reliable performance are critical. It works effectively in file servers, backup systems, analytics nodes, and media archives. IT professionals in education, healthcare, cloud hosting, and enterprise data centers will find this drive a practical solution for expanding RAID arrays, staging backups, or consolidating departmental data without complex infrastructure changes.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, and include all tags, manuals, accessories, and original, unaltered packaging. To start a return, please email us for approval. Items sent back without approval may be refused or returned to the sender. If any item is kept, its value will be deducted from the refund.

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After inspection, refunds are issued to the original payment method. Please allow 5–7 business days for the credit to post. Shipping and handling are nonrefundable. If an item is used, incomplete, or not in its original condition, a 30% restocking fee may apply. Direct exchanges are not offered. To exchange an item, please purchase the replacement separately and return the original for a refund.

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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

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