Time Machine Backup fails intermittently

I use latest Mac operating system on a 6TB My Book for Mac. About once a week, I get a message that the Time Machine Backup failed. Sometimes a similar problem is evident when I use Adobe Photoshop Lightroom and the program does not recognize all files.

This is a fairly new 6TB. I’ve had similar problems with another 6TB. My fix is to eject the 6TB (normally requires a force eject) and then to go to disk utilities and mount the drive. Then it works fine. I have run first aid in disk utilities and the report is that all is fine.

I have to assume there is some sort of problem with the WD 6TB’s working with Mac’s and that it is an intermittent problem. My work-around is relatively easy but is annoying. I don’t believe I had this issue in the past with 4TB drives and smaller.

Hello, welcome to the community.

If the drive is requiring to be forced eject, might be that the Mac is shutting down the power on the USB to draw less energy. Another thing that you can check is that with the drive utilities try to remove the option for sleep, maybe that can help.