0F22941 WD Ultrastar 7K6000 4TB SAS 128 MB 3.5" Server HDD

High-Density 3.5in Enterprise SAS HDD for 24x7 Capacity Tiers with the 0F22941

The 0F22941 is a WD Ultrastar 7K6000-class enterprise hard drive engineered for predictable bulk capacity in server and NAS environments where sustained throughput and consistent latency matter more than peak IOPS. Using conventional magnetic recording (CMR) and a 512n sector format, it is optimized for RAID behavior, rebuild stability, and broad platform compatibility across modern storage backplanes.

Designed for SAS infrastructures, the 0F22941 integrates cleanly into host bus adapter and expander topologies that rely on mature enterprise command sets and deterministic error recovery. The 7200 RPM design with 128MB cache supports mixed sequential and transactional patterns typical of datacentre HDD tiers, while enabling balanced power characteristics for dense chassis. In scale-out storage nodes, the 0F22941 aligns well with policy-driven tiering, backup targets, and colder virtualization datasets where capacity-per-rack unit is a primary architectural constraint.

Why Choose the 0F22941?

The 0F22941 delivers a strong density-to-performance profile for enterprise capacity pools, combining 24x7 duty design with a 2.0M-hour MTBF target to support predictable service levels. It is well-suited to standardize large RAID sets, expand existing SAS shelves, and scale repositories with consistent media behavior, while keeping operational risk low through proven mechanical and firmware design.

WD designs Ultrastar enterprise drives with an emphasis on datacentre integration, focusing on sustained reliability, controlled error handling, and compatibility with common server and storage qualification processes. The platform approach supports disciplined lifecycle management in environments built around repeatable procurement, validation, and fleet operations.

Key Applications:

• Server and NAS bulk capacity
• RAID arrays and JBOD shelves
• Backup repositories
• Log retention and data lakes
• Virtualization cold tiers

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage rollout and an extended warranty up to 6 years to protect long-lived capacity deployments built around the 0F22941.