1EX1185 WD Ultrastar DC HC310 6TB SAS 256 MB 3.5" Server HDD

High-Performance 3.5" SAS Enterprise HDD for 24x7 Datacenter Capacity Tiers with the 1EX1185

The 1EX1185 is a WD Ultrastar DC HC310 6TB 3.5" internal SAS enterprise HDD engineered for continuous 24x7 duty cycles in rack servers and storage enclosures where predictable latency and sustained throughput matter. Positioned for capacity-focused tiers, the drive aligns with modern CPU platforms by offloading bulk data retention to a resilient spinning media layer while compute resources handle indexing, caching, and application logic.

Within SAS storage architectures, the 1EX1185 integrates cleanly into backplanes and expanders, supporting consistent multi-drive operation across RAID sets and SAN/NAS shelves. Its 7200 RPM design and 256MB cache provide stable streaming performance for sequential workloads, while 4Kn formatting with 512e emulation simplifies migration and interoperability across legacy and modern controllers. For PCIe-centric servers, the 1EX1185 remains a cost-efficient complement to NVMe tiers by anchoring large datasets, backups, and warm archives behind controller-managed caching and tiering policies.

Why Choose the 1EX1185?

The 1EX1185 delivers an enterprise-appropriate density-to-reliability profile for scale-out capacity pools, enabling consistent operation under continuous load and vibration-aware chassis conditions typical of shared storage domains. It supports straightforward horizontal scaling: add spindles to increase aggregate bandwidth, expand RAID groups predictably, and maintain serviceability with standard 3.5" SAS service procedures.

WD designs Ultrastar datacenter drives around controlled thermals, workload consistency, and long-life mechanics suitable for always-on environments. The engineering focus on SAS integration, firmware stability, and sector-format flexibility helps the 1EX1185 meet expectations in standardized data centre build-outs and compliance-driven operational models.

Key Applications:

• RAID capacity tiers in rack servers
• SAN/NAS backend storage pools
• Backup targets and retention repositories
• Archival and warm data libraries
• General-purpose bulk storage

At Happyware - Server Hardware you benefit from non-binding offers tailored precisely to your 1EX1185 deployment scope and controller environment, supporting clean procurement for server refresh or storage expansion projects. For larger rollouts, bulk order discount options help standardize capacity tiers across multiple racks while maintaining predictable BOM control.