A number of Western Digital disk drives are having problems and need to be replaced. If you have an enterprise-class HGST Ultrastar drive, check with your WD channel supplier if you think you might be affected.

WD spokesman Paul Wooding said:

We have identified a small, isolated population of HGST Ultrastar disk drives demonstrating higher than expected failure rates when used in specific situations and use cases.

WD added: "While the Ultrastar product is meeting our expected field performance overall, we are addressing this specific issue, and working with applicable customers to identify and replace potentially affected drives. Western Digital is focused on delivering high quality products and supporting the needs of our customers."

The Ultrastar series is HGST’s enterprise product series and carry a severe price premium. When it comes to offering reliable drives to its enterprise customers. Drives that are not replaced as part of this recall have a 2M hours MTBF and 5-year warranty with 24×7 availability.

WD replaces HGST Ultrastar HDDs after High failure rates