HP 718162-B21 1.2TB 2.5in SAS 10K 6Gb/s SC Enterprise Hard Drive

Our review of the HP 718162-B21 1.2TB enterprise drive finds it well suited for server and storage arrays that need a balance of capacity, speed and reliability. The drive's main selling point is its 1.2TB capacity combined with a 10,000 RPM spindle and 6 Gb/s SAS interface, which together deliver predictable performance for mixed transactional workloads. For IT administrators replacing aging 2.5in SAS spindles or stocking spare parts for enterprise servers, this drive offers a straightforward, no-surprises option that fits common HP-compatible bays and backplanes.

Key Features

• 1.2TB capacity: Provides a solid amount of storage for server volumes without moving up to larger, more costly drives.
• 10K RPM spindle: Offers faster seek times and lower latency than 7.2K drives, improving performance for random I/O.
• 6 Gb/s SAS interface: Ensures reliable throughput and compatibility with modern enterprise controllers and RAID systems.
• 2.5in form factor: Fits high-density server trays and blade enclosures where space and cooling are constrained.
• HP part lineage: Matches HP system firmware expectations and hot-swap trays for straightforward deployment in HP infrastructures.

Who It's For

IT professionals running enterprise servers, SAN shelves or storage arrays who need a mid-capacity, mid-performance SAS spindle will find this drive appropriate. It is particularly useful for mixed workloads where lower latency and predictable responsiveness matter more than maximum sequential throughput.

Users who prioritize highest capacity per bay, maximum sequential transfer speeds, or the lowest power draw for archival workloads should look elsewhere; larger NL-SAS or SSD options are better for those specific needs.

Pros & Cons

Pros

• Reliable enterprise-focused interface and speed that improve transactional performance in multi-drive arrays.
• Compact 2.5in size lets more drives fit per chassis for higher rack density.
• Well matched to HP server ecosystems for easier compatibility and replacement procedures.
• Balanced 1.2TB capacity that suits many midrange storage pools without excessive cost.

Cons

• Not as fast for large sequential transfers as high-end SSDs, so not ideal for pure throughput-heavy applications.
• Mechanical drive limitations mean higher latency and power use than flash-based alternatives.

Specifications

Brand	HP
Part number	718162-B21
Capacity	1.2TB
Form factor	2.5in
Rotational speed	10,000 RPM
Interface	6 Gb/s SAS

Our Verdict

The HP 718162-B21 1.2TB 2.5in SAS drive is a solid, practical choice for enterprises that need reliable, mid-range capacity with improved random I/O performance. Administrators seeking compatibility with HP server platforms and denser drive configurations will appreciate its balance of speed and size, though teams focused on maximum sequential throughput or the lowest latency should consider SSDs instead.

Frequently Asked Questions

Is this drive compatible with HP servers?
Yes, the drive uses HP part lineage and the 2.5in SAS form that fits HP server bays and backplanes designed for enterprise SAS disks.

What interface speed does it support?
The drive supports a 6 Gb/s SAS interface suitable for enterprise controllers and RAID arrays.

Is it better to choose this over an SSD?
It offers lower cost per GB and higher density than many SSDs, but SSDs deliver much lower latency and higher sequential performance for I/O intensive workloads.