WD Ultrastar DC Data Center Hard Drive (0B4774) – SAS / SATA, 7200 RPM, CMR

The WD Ultrastar DC 0B4774 (0B4774) is a 3.5-inch enterprise data center hard drive for servers, cloud storage and high-capacity arrays. With 7200 RPM operation, SAS / SATA connectivity and a 550TB/year workload rating, it suits IT teams, integrators and resellers deploying always-on capacity.

Enterprise-grade capacity for servers that run nonstop.

Built for the Duty Cycle of Modern Data Centers

Data center drives run nonstop in dense racks, sharing vibration, heat and constant I/O with dozens of neighbours. Consumer and NAS-class drives are not rated for that environment, and failures there cost rebuild time, performance and service levels.

The WD Ultrastar DC 0B4774 is engineered for enterprise duty with a 550TB/year workload rating and an enterprise air-filled design for mainstream capacities. The SAS / SATA interface provides dual-port connectivity and full-duplex transfers on SAS HBAs and RAID controllers.

Capacity and Efficiency per Rack Unit

As a high-capacity drive, it helps consolidate storage into fewer bays, reducing power, cooling and chassis count for the same usable capacity.

Enterprise Reliability for Continuous Operation

Rated for 24/7 workloads with enterprise MTBF figures and RAID-tuned error recovery, it gives IT teams predictable lifecycle planning.

Setup Instructions

How to Deploy the WD Ultrastar DC 0B4774

1. Confirm your server, JBOD or array supports 3.5-inch SAS / SATA drives at this capacity.
2. Install the drive in the correct OEM carrier or tray.
3. Hot-insert into the bay (if supported) and verify detection in the controller or HBA.
4. Add it to a RAID set, ZFS pool or storage cluster and enable S.M.A.R.T. monitoring.