Is APFS compatible with a Fusion Drive running Mojave in Dec 2022

From what I am reading APFS is not compatible with a Fusion Drive and causes crashes. I have a Fusion Drive and am running APFS with Mojave successfully in Dec 22. Anyone care to comment on this please?

iMac 27″, macOS 10.14

Posted on Dec 7, 2022 9:24 AM

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Posted on Dec 7, 2022 9:38 AM

Not true. I ran APFS on my 2013 27” iMac with a Fusion drive and Mojave with no issues at all. If/when you move to Catalina or later APFS becomes mandatory in fact. When someone has trouble they tend to immediately blame whatever they did last as the cause. There is nothing magical about a Fusion drive. They are simply an HD and a SSD combined in software to appear to the system as a single drive.


Now wait for someone else to come along and warn that their system blew up in their face when they formatted to APFS. You already know that’s not true since you are successfully using APFS with your Fusion drive.

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Dec 7, 2022 9:38 AM in response to chrisw53

Not true. I ran APFS on my 2013 27” iMac with a Fusion drive and Mojave with no issues at all. If/when you move to Catalina or later APFS becomes mandatory in fact. When someone has trouble they tend to immediately blame whatever they did last as the cause. There is nothing magical about a Fusion drive. They are simply an HD and a SSD combined in software to appear to the system as a single drive.


Now wait for someone else to come along and warn that their system blew up in their face when they formatted to APFS. You already know that’s not true since you are successfully using APFS with your Fusion drive.

Dec 7, 2022 11:01 AM in response to chrisw53

Great, I thought it was odd! I have successfully updated all my Macs and back up disks to APFS now as, for instance, I have a 5Tb master which previously I partitioned for each Mac and was always running out of space in partitions but as APFS regards the whole disk as shared space that prob no longer exists! Thanks for your help, yes let's see what else people say...

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Is APFS compatible with a Fusion Drive running Mojave in Dec 2022

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