Chosen Solution
I am trying to split the fusion drive in my 1tb iMac so I can replace the HDD with a 2TB Samsung ssd and use that as my boot drive instead of the blade ssd. I followed the guide that was suggested as well as others and none have worked.
Errors: https://imgur.com/a/VApe20z here is my previous post here about it; Replacing the Fusion HDD with a SATA SSD?
Let’s see if we can figure things out. First lets get a snapshot of Disk Utility. Make sure you alter the view to show All Devices in the top left corner of the menu bar. On the left column you should see your physical drives. Click on the top one and expand the tabs. Take a snapshot at each layer container and then the volume. Do the second drive in the same way. Make sure you capture the full window each time posting them here for us to see Adding images to an existing question
