I say do not install High Sierra on a Mac that has fusion drive yet, since it is not supported yet. Wait for Apple to get the bugs to allow it support fusion drives
When macOS High Sierra is released to the public next week, the new Apple File System (APFS) feature will be limited to Macs with all-flash built-in storage, which means it won't work with iMacs and Mac minis that include Fusion Drives.
With the release of the Golden Master version of the software, Apple has confirmed APFS will not be available for Fusion Drives and has provided instructions for converting from APFS back to the standard HFS+ format.
Apple says APFS will not be supported on Fusion Drives "in the initial release of macOS High Sierra," which suggests support could be added for Fusion Drives at a later date after lingering bugs are worked out.
I have a iMac with a fusion drive, but i’m Going to wait to install high Sierra
When macOS High Sierra is released to the public next week, the new Apple File System (APFS) feature will be limited to Macs with all-flash built-in storage, which means it won't work with iMacs and Mac minis that include Fusion Drives.
With the release of the Golden Master version of the software, Apple has confirmed APFS will not be available for Fusion Drives and has provided instructions for converting from APFS back to the standard HFS+ format.
Apple says APFS will not be supported on Fusion Drives "in the initial release of macOS High Sierra," which suggests support could be added for Fusion Drives at a later date after lingering bugs are worked out.
I have a iMac with a fusion drive, but i’m Going to wait to install high Sierra
