I have a late 2012 Mac Mini (that I wasn't really using much) and I had a Samsung 500GB SSD not being used (at all) so decided to toy around and replace the 1TB fusion drive in the Mini. After quite a few stumbles I managed to get the OS installed and everything appears to be working well but the OS is reporting the 500GB SSD as being 1TB in size. Is there a way to correct this?
Hello,
It then sounds like your Mac still thinks that the 1 TB disk is still attached. Did you follow all the proper procedures to remove a Fusion Drive? While Apple does not support this action, this 3rd party website outlines the procedure.
Hello,
Thank you for this screenshot.
Did you try to construct a DIY fusion drive? Your Samsung SSD is showing the correct size and the root device of "APPLE HDD HT.." shows the type as "Disk" not "Solid state". This would indicate that this 1 TB disk is a mechanical spinning disk and not a SSD. It appears to me that you have a 1 TB mechanical disk fused with a 500 GB solid state disk.
While this will be a pain, I suggest that you start from square 1 and fully disassociate a fusion drive from your Mac. You would then need to reformat and reinstall macOS.
Where are you seeing the wrong capacity for the 500GB SSD?
(About This Mac > Storage)
(in the Drive Info)
(Disk Utility)
If it is only wrong in the About This Mac > Storage tab.
reindex Spotlight, as per > How to rebuild the Spotlight index on your Mac - Apple Support
then if that doesn't help, see > Use safe mode to isolate issues with your Mac - Apple Support
Hello,
Within Disk Utility tap the "View" button in the upper left corner > Show All Devices. Could you please post a screenshot of this?
Hello,
This is very strange. I have not come across this problem before. Here is a forum post on Macrumors which may help you.
https://forums.macrumors.com/threads/disk-utility-shows-wrong-hard-drive-capacity.1627021/
The SSD is the only drive that is connected to the mini.
Didn't try to reconstruct a Fusion drive just wanted to replace the fusion drive with the single SSD.
Sadly, no, I did not follow that procedure.
Saw this just now:
I was hoping to avoid that. Everything works as is. I was hoping there was some terminal-fu that could fix this without starting over. Thanks for the help, appreciate it.
You are welcome. Hopefully you will be able to get this all sorted out.
New SSD Shows Wrong Capacity
