Somewhere, I'd seen earlier that Time Machine will automatically erase the oldest backups if it's getting tight on space, and I presume this has happened sometime(s) during the past three years. It appeared on my Desktop as normal again, but still couldn't do a back up or First Aid again (same error messages as earlier).Ĭould this be a physical drive failure? It appears OK, light is on (blinking slowly), disk icon appears on Desktop, Time Machine appears on Menu Bar, all "looks" normal.Īccording to Get Info, there's about 200GB remaining on that drive. I even turned off the iMac, unplugged the drive, turned on iMac and after it booted, plugged in the drive. So then I tried to Eject the drive, wouldn't allow. Got message it couldn't "unmount" the drive. Not very helpful! After several attempts to backup manually (without success), I tried Disk Utility to try First Aid on the drive. As of last night I started getting notifications that the backup failed, and an explanation of "An error occurred while creating the backup folder". It's been set to backup automatically since the beginning. It uses a dedicated 2T WD Passport drive connected via USB to my iMac. Time Machine failing Time Machine has been working fine for me for the past three years. I just now tried the sequence again, backing up only the applications folder, and it failed about 1/4 of the way through, which is a common failure point.Īt my wit’s end! Ideas? Logs? Thanks in advance. It happened to be Users folder, but I don’t think it’s limited to that folder. One day I got through 5 folders before the backup failed. One at a time, I will add a folder to be backed up to try to isolate the problem.
I tried an external USB drive, and that does not fully work.īooted into restore mode and installed a fresh High Sierra.Įrased the external HD with Disk Utility. We had IT delete my backup from the server. At first, we thought it was something to do with the backup file location (NAS), but the other two Macs in the office are not having a problem.
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