Mean Time Between Failures

Does anyone know what the MTBF is on the WD My Cloud 4 Tb system?

If your My Cloud has a WD Red drive in it (most v4.x My Clouds do) then the MTF is 1,000,000 hours. See the following WD Support document specifications sheet for WD Red drives:

If the hard drive within the My Cloud is not a Red drive then check the WD website for the drive model and its specification sheet for the MTF hours. One can use the hdparm -I /dev/sda command via SSH to find the hard drive name/model/information.

Thank you for the response. That’s the information I was looking for. I haven’t purchased the system yet, but looking at it seriously.

mine lasted about a year, fwiw.