Hi there,
How do i check if my iMac uses Fusion, SSD or a regular HD?
Regardless of whether i ordered it or not - i'd like to find it written in the system spec somewhere. This is a screenshot of where I think I'd find the info. I did search this forum before and the only post i found would describe this screenshot as NOT having fusion - and only having a regular sata.
iMac 27" 5K, macOS 10.14
Sorry yes, it was a guess. Keep checking the System Report info, it's listed there somewhere.
For the Support article, see > About Fusion Drive, a storage option for some Mac computers - Apple Support
So far, it does look like you have an Apple Fusion Drive.
In Disk Utility, click the little down arrow and shoot us another screenshot.
See where it says Connection: - PCI Express on the bottom right of that graph. That's an indication.
theviewer1985 wrote:
Okay so this is strange then... I did order a 3TB fusion drive. And in this screenshot it shows i have a fusion... But everything else points to me NOT having fusion. Including my first screenshot which came from: Apple > About This Mac > System Report > SATA/SATA Express.
https://discussions.apple.com/content/attachment/a5272710-b597-4b33-b415-f87743fab5c7
And this screenshot comes from disk utility, which I can't see a mention of SSD on...
https://discussions.apple.com/content/attachment/23675450-b9c4-4b1f-8ea1-907ce2fe7ec9
Okay so this is strange then... I did order a 3TB fusion drive. And in this screenshot it shows i have a fusion... But everything else points to me NOT having fusion. Including my first screenshot which came from: Apple > About This Mac > System Report > SATA/SATA Express.
And this screenshot comes from disk utility, which I can't see a mention of SSD on...
Clicking that arrow only gave me the option to "view all devices" or "only volumes"
Presumably you wanted me to click view all devices, which i did... and here is the screenshot now. Which mentions fusion again..
I guess i was just expecting to be able to find a more "concrete" page of information regarding the fusion. Eg. The SSD make / model, how much SSD space available etc etc
As for the PCI page, perhaps it was just a educated guess, and you may kick yourself for asking me to check... but this is my PCI section. Does that mean there is a fault somewhere?
I don't know what shows if you manage to "un-fuse" a Fusion drive but this is what I see on one of my iMacs.
Also, if you run "diskutil list" in the Terminal you should see two internal physical disks.
An Apple Fusion Drive consist of two drives, an SSD and a HDD.
The screenshot you posted, only shows a 3T HDD.
To check the System Report information of your iMac, take the following path.
Apple > About This Mac > System Report > SATA/SATA Express.
Another way to look at drive information, is using the Disk Utility app.
Applications > Utilities > Disk Utility
That is what you have.
If you go back to System Information, I think that you will find that your SSD is listed in the PCI section.
Also be very careful in that area of Disk Utility. One wrong move and poof you break the fusion drive and lose your bootcamp partition.
how do i know if i have a fusion drive?
