I have a simple array set up in Storage Spaces that consists of 5 hard drives: four are 3TB and one is 2TB. I want to replace that 2TB with a larger drive, but it has 40.1 % of the disk being used (according to the Storage Spaces manager). I clicked "Remove" in the Storage Spaces Management screen, but the drive says "Preparing for removal". I tried optimizing the Storage Spaces to see if it would move the data to other drives, but it has not. Keep in mind I have 12.7TB total with only 6.54TB being used. I have plenty of space for this drive's data to be reallocated to other drives.
Is this possible? Or does having a Simple Array just pretty much make it impossible to replace disks?