To fix your Fusion Drive, you can delete the Logical Volume Group and reset it.
Be reminded that all data on your Fusion Drive will be erased in the process. If you need to recover data from the Fusion Drive, use iBoysfot Data Recovery for Mac first.
When you're ready, follow the steps below to delete the LVG from Terminal:
- Open Terminal.
- Run the commnad below to find the UUID of your Fusion Drive's Logical Volume Group. diskutil cs list
- Delete the LVG.diskutil cs delete UUID
Then take the steps mentioned in the following guide to reset your Fusion Drive based on your macOS version:
