You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

JerrrickCai Author

Level 1

8 points

[Time Machine] [Fusion Drive] "There was an error preparing time machine"

Hi everyone, I'm using Imac 2017, it comes with a 1 TB fusion driver (the OS was installed in the external SSD). I was using it as time machine drive before updating to big sur.

But recently I re-installed my mac to a new external SSD and I formatted the fusion drive to Mac Os Extended (Journaled)/GUID. I got this error when I'm trying to select the fusion drive as backup disk. Please help, thanks!

iMac Line (2012 and Later)

Posted on Aug 8, 2021 10:48 AM

Top-ranking reply

Barney-15E

Level 10

116,770 points

Posted on Aug 8, 2021 2:48 PM

I would imagine Time Machine wouldn’t like a fusion drive as a destination.

As to the formatting, Time Machine will convert it to APFS. That is likely where it is failing.

I would split the fusion drive and use the spinning hard drive as the TM destination.

View in context

[Time Machine] [Fusion Drive] "There was an error preparing time machine"

Similar questions