HPE 861590-B21 3.5" 7.2K RPM SAS 12Gbp/s Midline SC 8TB HDD

The HP 861590-B21 is an 8TB internal hard drive built for servers and storage arrays that must balance capacity, performance, and uptime. It connects through a 12 Gb /s Serial Attached SCSI interface, so data flows quickly whether you are streaming large backup sets, running online transaction processing, or supporting virtual machines. A rotational speed of 7200 RPM and an average seek time of 8 ms help applications start and respond without noticeable lag, even when demand peaks.

This drive uses a 3.5-inch large form factor that drops straight into HP ProLiant systems and other industry-standard SAS backplanes. Because it supports hot swapping, you can replace or add drives while the server stays online, a key advantage in environments where downtime is not an option. Midline engineering focuses on high availability and data integrity, making the drive a practical fit for file servers, analytics nodes, media archives, and any workload that needs reliable capacity at scale.

System administrators, database managers, and IT teams in education, healthcare, and cloud hosting will appreciate how the drive simplifies expansion projects. Install it to grow a RAID array, stage daily backups, or consolidate departmental data without re-architecting your storage infrastructure. The blend of enterprise-class reliability and straightforward integration keeps projects on schedule and budgets under control.

Highlights:

• 8 TB capacity stores large databases, backups, and multimedia files
• 12 Gb /s SAS interface delivers high bandwidth for demanding workloads
• 7200 RPM rotational speed supports consistent, dependable throughput
• 3.5-inch large form factor fits standard enterprise drive bays
• Hot-swappable design enables drive replacement without shutting down the system
• Average seek time of 8 ms helps reduce latency for responsive applications
• Midline construction focuses on high availability and data integrity in business environments