fusion drive

  1. L

    Custom Disk Utility configuration for Fusion Drive and APFS

    All, If any of you have tried installing Catalina on an older iMac with Fusion Drive you will understand that the system becomes so slow (APFS is designed for SSD and doesn't play well with Fusion Drive) it is unusable. I'm asking your collective knowledge and experience to tell me if the...
  2. S

    Can’t split iMac fusion drive

    iMac 2017 27” catalina I am trying to split my fusion drive so I can upgrade my HDD with a 2tb Samsung sata ssd. I have run into nothing but problems trying to split the drive. I tried all the different commands, and guides I found onlinebut nothing has worked.
  3. Lowe Lilliehorn


    Hello everyone, Sorry for the big caps, but I really need some advice regarding iMac. You see, I am currently working on a MacBook Pro 2015 without dedicated graphics in Final Cut Pro and I'm editing large 4k files with 60fps. Doesn't not cooperate good at all. First second or two is working...
  4. J

    May I upgrade to Mojave with a custom Fusion Drive in a mid 2012 Macbook Pro?

    I've got a mid 2012 Macbook Pro with a custom Fusion Drive working in Sierra. I was told not to upgrade to High Sierra because it wasn't supported. But I've also recently read that Mojave does support Fusion Drive. But my question is that if it supports custom Fusion Drive (not made by Apple)...
  5. Tonelli

    Help Picking between 2 iMacs 2013 !

    hey ! Looking for advice I'm between two iMacs 2013 Late 2013 iMac 27' 24gb ram , 1tb hdd , 3.5ghz i7 800$ Canadian or 602$ US OR Late 2013 iMac 21.5 , 1.12 tab fusion drive, 8gb ram 3.1 ghz i7 850$ Canadian or 640$ US Advice on selection and price would be very helpful !
  6. R

    Is it better to run MacOS off the provided Fusion Drive or off an external SSD?

    I just got a new 5k iMac. For specific reasons (living in a third world country and restricted time as i was on vacations) I had to get the 27 inch 5k base model. I did a 32 gb ram upgrade and bought an external ssd. Im currently running Mojave off the ssd with no problems, everything is pretty...
  7. nemoryoliver

    Fledging Feather M13 NVMe SSD on an iMac?

    I wonder why nobody is talking about this 3rd Party NVMe SSD upgrade solution for iMacs. I believe they've been around for a while now. Just wanted to know if anyone here has tried upgrading their iMac to this NVMe SSD and how's it so far? https://fledging.net/feather-m13/
  8. B

    Triple boot Windows 10 Linux MacOS Mojave on MacBook Pro 15” 2012 on a fusion drive

    I want to triple boot my 2012 15” classic non retina MacBook Pro (cMBP) with MacOS Mojave Windows 10 and Linux (will decide on the distro later) while making a fusion drive from the 512 GB SSD and 1 TB HDD inside the machine? I’m thinking of partitioning the SSD to 80 GB to Linux 100 to Windows...
  9. lpretorius

    Fusion Drive Failed, Questions on SSD Upgrade

    Hey all, a couple of days ago my fusion drive in my late 2015 iMac toasted out on me... I received the dreaded prohibitory signal and after a long phone call with Apple support it seems as though the hard drive portion has died while the 128gb SSD is still ticking. After doing some extensive...
  10. Escape_Artist

    Teach me how to upgrade - teach me-teach me how to upgrade

    Hey all, Firstly, does anyone know of performance comparisons for iMacs running a Fusion Drive vs an SSD in terms of numbers? Everything I've read says that an SSD is faster (of course it is), but I haven't found any numbers to give it scale. Context: I'm upgrading soon (mid-2011 iMac, 32gb...
  11. ericmschwanke

    iMac Fusion Drive, SSD Portion clarification

    I started with a 2012 with the original fusion drive, upgraded to a 3tb with he 128gb SSD portion. Since I have been through 1 HD recall that got me a new 3tb Drive. I purchased a 2014 Retina 27inch iMac, I had a local Apple reseller replace the HD and Fusion drive into the 2014. Than I...
  12. P

    Split Fusion Drive, now not booting, can't find solution!

    My 2011 Macbook Pro running El Capitan was running fine until recently when it suddenly decided to stop booting after getting a new charger which I assume was sketchy (refurbished apple from ebay). I believe that my fusion drive has split back into the original hdd and ssd and now I can't boot...
  13. S

    Lost Space deleting Windows Partition (bootcamp)

    I am new here. i know there are tons of similar posts like this but i cant figure from where to start because i have a fusion drive (which complicates things). really need help!! i have imac5k 2017 2b fusion drive with mojave, had windows installed. decided to delete it through bootcamp and my...
  14. A

    Half my storage missing after fusion drive partitioning

    Hi, I have a late 2015 5K iMac with a 3TB fusion drive running High Sierra 10.13.6. Until now i was using it as one big HD but yesterday decided to partition it into two equal halves using Disk Utility, so that I could install MojaveOS onto the second partition. Everything was running smoothly...
  15. friedeggs

    Imac 5k 2018 model (MUSIC PRODUCTION)

    I have an iMac 27 inch 5k 2018. This has a 1 TB fusion drive with a 24 GB of flash storage in it. This computer is used in a music studio and the hard drive performs terribly. It is excruciatingly slow. I was wondering if any one could help me with the following questions: Based on my...
  16. J

    Fusion Drive - No CoreStorage logical volume groups found

    Hey! I'm trying to split a Fusion Drive. Note I've heard the warnings; no need to advise me against it. I know what I'm doing and I have backups of everything if things go horribly wrong. Anyhow, I am following this article which states to type 'diskutil coreStorage list' into terminal while...
  17. smirk

    Homebrew fusion drives

    A few years back, I took apart my 2011 iMac Core i7, added an SSD, and created a homebrew fusion drive with the existing 2 TB mechanical drive. It was like getting a new computer; boot times went from 45+ seconds to something like 15 seconds, and apps felt as if they launched almost instantly...
  18. Kaikidan

    Mac Mini 2014, Problem with external boot drive

    I have a 2014 Mini, the one with 2.6Ghz and a 1tb slow 5400RPM HD, so as soon as i bought it i instaled a external usb 3.0 120gb SSD merged with a fast 3.0 External HDD, creating a "fusion drive", it worked amazingly well for a long time. But after mojave update if I let my mini go to sleep...
  19. T

    I got Mojave working on a Mac Pro 4,1, Geforce 710, and a 1 tB fusion drive

    Just throwing a post in here in case people don't find their way to the Mac Pro forum. First off, I got my Mac Pro prepped per @tsialex 's fine instructions, found here. Firmware: Got my firmware updated. Read the thread above and follow directions exactly. Graphics: Removed incompatible...
  20. T

    Fusioning mini2018 with external drive?

    Anybody tried this? How snappy it is? Is it even possible? Will Apple ever going to offer fusion with AFPS?