I am getting a ton of these errors (over 100) when I run Disk Utility First Aid on the Fusion Drive of my late-2012 iMac (see attached). They do not resolve when I run First Aid multiple times. What should I do about these errors, if anything? Thank you
It then ends with: "Operation successful."
iMac 27", macOS 10.14
I've seen the problem reported before on Fusion Drives. Since Disk Utility completes with "Operation Successful" I don't think there's actually a problem. But you can run DriveDx to double check. DriveDx is a more robust utility than DU. If you need any help interpreting the report you can post it here.
I've seen the problem reported before on Fusion Drives. Since Disk Utility completes with "Operation Successful" I don't think there's actually a problem. But you can run DriveDx to double check. DriveDx is a more robust utility than DU. If you need any help interpreting the report you can post it here.
Thank you macjack. Yes, I've run this from Recovery and got the same errors.
Just to be clear, by Recovery I mean that I rebooted pressing Cmd-R, chose Disk Utility, chose the full Fusion Drive and clicked First Aid.
After doing the above I got those errors.
Run First Aid from Recovery Mode:
I saw that somewhere else too -- a person saying that these errors can be disregarded because the process ends with a green check saying that the disk is okay.
Many thanks
You're welcome.
Disk Utility FIRST AID error: "Mismatch between extentref entry reference count"...
