0B36017 WD Ultrastar DC HC310 4TB SAS 256 MB 3.5" Server HDD

High-Performance 3.5in SAS Enterprise HDD featuring secure CMR capacity with the 0B36017

The 0B36017 is a 4TB 3.5in internal SAS hard drive engineered for enterprise server and storage platforms where predictable latency and sustained throughput are required under 24x7 mixed workloads. In capacity tiers behind modern CPU and GPU compute clusters, the 0B36017 supports consistent I/O characteristics for rebuild operations and streaming reads, making it suitable for RAID groups and dense JBOD shelves.

Built on a 7200RPM CMR recording architecture with 512n sector format and a 256MB cache, the 0B36017 is optimized for transactional integrity and deterministic behavior across SAS backplanes. Its design aligns with PCIe-attached HBAs and RAID controllers by providing stable queue handling, while enabling straightforward scaling in SAN/NAS backends where spindle count and layout determine aggregate bandwidth. Security is integrated at the device level through Self-Encrypting Drive (SED) capabilities with TCG Enterprise SSC, allowing hardware encryption and policy-based key management without adding CPU overhead to hosts.

Why Choose the 0B36017?

The 0B36017 delivers a balanced density-to-performance profile for capacity-focused tiers that still demand enterprise reliability. With 2.0M hours MTBF and power characteristics suited to large drive counts, the 0B36017 supports predictable scaling in RAID arrays and shared storage pools, simplifying deployment in always-on infrastructures where operational continuity and serviceability are primary architectural goals.

WD builds Ultrastar-class drives with a focus on datacenter duty cycles, controlled firmware behavior, and interoperability with standard SAS enclosures and enterprise server platforms. This engineering approach supports long-lived storage designs that must conform to modern security requirements and structured lifecycle management.

Key Applications:

• RAID arrays and JBOD expansion shelves
• SAN/NAS backend storage tiers
• Capacity tier for enterprise servers
• Backup and archive repositories
• Always-on mixed workload infrastructure

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your storage architecture and rollout schedule, helping you standardize on the 0B36017 across fleets with clear procurement planning. For larger deployments, bulk order discount options support economical scaling in RAID and JBOD builds.