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  1. #1
    macOS High Sierra APFS only support SSDs
    Raz0rEdge's Avatar
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    macOS High Sierra APFS only support SSDs
    macOS High Sierra is going through its public beta and is expected to be released later this year. One of the big features of High Sierra is the introduction of APFS (Apple new filesystem) which is targeting Flash/SSD storage. As per the support note, installing High Sierra on a Mac with a Flash/SSD will cause the conversion from HFS to APFS is automatic and cannot be opt'ed out of.

    Macs with regular HDDs and Fusion drive are exempt from the automatic conversion, but it isn't clear if APFS will support those drives (initial thinking is that it wouldn't)..

    So, unlike previous upgrades of macOS where you may have been a little gung-ho with the upgrade without properly backing up everything, the upgrade to High Sierra isn't one of those. Make sure you have a good (bootable) backup of your existing machine and all of your data (ideally in multiple forms) to go back if things go awry..

    Read more: https://support.apple.com/en-us/HT208018
    --
    Regards
    ...Ashwin


  2. #2
    macOS High Sierra APFS only support SSDs
    harryb2448's Avatar
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    For mine Ashwin I think it will support both as Apple are still selling platter and Fusion drives in brand new models. To my reading of the link, and from the Apple Developer Forum where folks are running High Sierra on Fusion drives, it will be an optional thing. Also think there is a long way to go before High Sierra really hits the high notes!
    Using OS X.7 or later make a bootable USB thumb drive before running Installer!

  3. #3
    macOS High Sierra APFS only support SSDs
    chscag's Avatar
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    Macs with regular HDDs and Fusion drive are exempt from the automatic conversion, but it isn't clear if APFS will support those drives (initial thinking is that it wouldn't)..
    Just read through the Apple KB article. Going to be lots of confusion and grinding of teeth when High Sierra goes live. LOL.

  4. #4
    macOS High Sierra APFS only support SSDs
    chscag's Avatar
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    To my reading of the link, and from the Apple Developer Forum where folks are running High Sierra on Fusion drives, it will be an optional thing.
    I kind of agree that it will be optional. However, I personally will stick with HFS+ as long as what the link says about interoperability is true. No reason in my opinion to break something that's not broken. When I buy my next Mac it will have all Flash storage and then I'll be using APFS.

  5. #5
    macOS High Sierra APFS only support SSDs
    Slydude's Avatar
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    I've been running the betas since they became available. I currently have it on my 2015 iMac with Fusion drive. The drive is formatted as APFS because I \wanted to test that file system. I had the chance to determine whether I wanted to convert the drive which I chose to do because I wanted to see how it performed.

    I have not tested it on a pure platter drive since I don't have a spare around at the moment.
    Last edited by dtravis7; 09-01-2017 at 09:19 AM. Reason: date
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  6. #6
    macOS High Sierra APFS only support SSDs
    Raz0rEdge's Avatar
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    Again, the beta is allowing you to switch between the two. But on the released version of High Sierra, only flash/SSD will be converted automatically with no opt-out while HDD and Fusion drives will not be automatically converted. There is no indication whether those drives will support APFS at that point..
    --
    Regards
    ...Ashwin


  7. #7
    macOS High Sierra APFS only support SSDs
    IWT's Avatar
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    I currently have it on my 2915 iMac
    Boy, are you ahead of the game! What's it like on the planet now?

    Ian
    Ian

  8. #8
    macOS High Sierra APFS only support SSDs
    pigoo3's Avatar
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    Quote Originally Posted by Slydude View Post
    I currently have it on my 2915 iMac with Fusion drive.
    Jeez. Apple is STILL using Fusion Drive's in 2915???

    - Nick
    - Too many "beachballs", read this: Beachballs
    - Computer seems slower than it used to? Read this for some slow computer tips: Speedup
    - Almost full hard drive? Some solutions. Out of Space
    - Apple Battery Info. Battery

  9. #9
    macOS High Sierra APFS only support SSDs
    pm-r's Avatar
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    macOS High Sierra APFS only support SSDs




    Wow!! I thought that subject heading was a bad joke or a very late April Fools joke at first glance.

    Anyway, I doubt I'll be using any of it for quite some time.





    - Patrick
    ======

  10. #10
    macOS High Sierra APFS only support SSDs
    pm-r's Avatar
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    Quote Originally Posted by IWT View Post
    Boy, are you ahead of the game! What's it like on the planet now?

    Ian


    Very, very wet I understand and it seems like some unique cases of soggy brain are showing up in places.




    - Patrick
    ======

  11. #11
    macOS High Sierra APFS only support SSDs
    Slydude's Avatar
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    Quote Originally Posted by IWT View Post
    Boy, are you ahead of the game! What's it like on the planet now?

    Ian
    Wow. Apparently I have perfected time travel and didn't realize it. Can't tell what the planet is like. If I do they take away the Mac and make me do my computing on a Kaypro or Wang system.
    “Hard work beats talent when talent fails to work hard.”
    Kevin Durant

  12. #12
    macOS High Sierra APFS only support SSDs
    ferrarr's Avatar
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    Do we know if it applies to changed out drives? I changed to an SSD in my mini, is that considered all flash?
    Last edited by ferrarr; 08-31-2017 at 06:02 PM. Reason: spelling
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  13. #13
    macOS High Sierra APFS only support SSDs
    pm-r's Avatar
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    Do we know if it applies to changed out drives? I changed to an SSD in my mini, is that considered all flash?

    I would sure think and assume so. Can't get much more flashier than a true all SSD I'd say.





    - Patrick
    ======

  14. #14
    macOS High Sierra APFS only support SSDs
    ferrarr's Avatar
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    The reason I asked, was because I did not think Apple used SSD drives in any of their Macs, only HDD and Flash storage. And, the Article never mentioned SSD drives, only Flash and Fusion drives. I did also ask on Apple Support Forums, just to see if anyone there knew too.
    -- Bob --
    Please backup. Everything has a life cycle, unexpected and warning free. Nothing will last as long as you want it to.

  15. #15
    macOS High Sierra APFS only support SSDs
    Raz0rEdge's Avatar
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    Flash = SSD. The iMacs only have SSDs through the Fusion drives and the MBPs have the Flash drives (not traditional SATA based SSDs)..
    --
    Regards
    ...Ashwin


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