0B36039 WD Ultrastar DC HC310 6TB SATA 256 MB 3.5" Server HDD

High-Density 3.5in Enterprise SATA HDD for data centre bulk storage featuring CMR reliability with the 0B36039

The 0B36039 is a 3.5in internal enterprise HDD designed for SATA-based capacity tiers where predictable latency and sustained throughput matter more than IOPS density. In server platforms and storage nodes, 0B36039 integrates cleanly behind modern SATA 6Gb/s controllers and HBAs, enabling straightforward drive population in large RAID sets while keeping the compute layer flexible across current CPU generations.

Architecturally, 0B36039 uses 7200 RPM CMR recording to maintain consistent write behaviour under parity rebuilds and long sequential ingest, avoiding the write amplification risks associated with SMR in RAID environments. The 4Kn/512e formatting supports modern filesystems and alignment practices, while the 256MB cache helps smooth bursty metadata activity typical of VM datastores and backup repositories. Rotational vibration safeguards and a 24x7 duty cycle profile support dense multi-bay chassis designs where mechanical coupling can otherwise degrade performance and reliability.

Why Choose the 0B36039?

The 0B36039 delivers a balanced density-to-serviceability profile for enterprise capacity pools: a single 6TB drive that scales predictably across shelves and rack servers, with an MTBF target suited to always-on operations. Deploying 0B36039 in homogeneous drive groups simplifies RAID policy, spares strategy, and lifecycle planning, making it a practical building block for expandable nearline architectures.

WD engineers Ultrastar platforms for datacentre operational consistency, focusing on sustained workloads, vibration tolerance, and qualification against common enterprise storage backplanes. This reliability-first approach aligns with modern facility standards where predictable fleet behaviour, controlled power characteristics, and long maintenance windows are essential.

Key Applications:

• RAID capacity tiers in rack servers and JBODs
• Backup repositories and nearline retention
• Bulk VM datastores prioritising SATA capacity
• Content repositories and log aggregation

At Happyware - Server Hardware you benefit from non-binding offers tailored to your storage architecture and rollout timeline, plus an extended warranty option up to 6 years to protect long-lived capacity deployments based on 0B36039.