0B31071 WD Ultrastar SSD800MH.B 400GB SAS 2.5" Server SSD

High-Performance 2.5in SAS Enterprise SSD for hot-swap server storage with the 0B31071

The 0B31071 is a 2.5in SAS enterprise SSD engineered for predictable latency in shared storage tiers, delivering consistent service levels for transactional platforms and virtualised infrastructures. Designed for hot-swap bays in RAID-backed arrays, it integrates cleanly into existing SAS backplanes while maintaining steady behaviour under sustained mixed read/write pressure.

Built on MLC NAND with a focus on endurance, the 0B31071 supports write-intensive duty cycles such as logging and metadata operations where cache churn and small-block updates are persistent. Its SAS interface aligns with enterprise storage controllers and multipath architectures, while the drive’s performance profile targets both sequential throughput and high 4K random IOPS needed by OLTP and VM datastores. Hardware-based self-encrypting drive capability enables security controls without adding CPU overhead, supporting compliance-driven deployments that require encryption at rest.

Why Choose the 0B31071?

The 0B31071 provides a practical density-to-performance balance for SAS-based server fleets that prioritise availability, serviceability, and controlled scaling. It is well-suited for expanding RAID groups, refreshing SAN/HCI tiers, or standardising hot-swap components across clusters, with endurance characteristics that reduce replacement frequency in 24x7 environments.

WD designs enterprise SSDs around sustained workload integrity, controller-level resilience, and operational consistency in modern data centres. This approach supports predictable integration with established SAS ecosystems, security requirements, and reliability expectations for always-on storage services.

Key Applications:

• Mixed read/write OLTP databases
• RAID-backed SAS arrays
• Virtualisation datastores for SAN/HCI
• Logging and metadata tiers
• Write-intensive 24x7 services

At Happyware - Server Hardware you benefit from non-binding offers tailored to your rollout plan for the 0B31071 and an extended warranty of up to 6 years to protect long-life storage investments in production environments.