Fusion drive restore

[Mike Obremski]

I have a 2019 imac. with a 2tb fusion drive. I recently had a bootcamp installation and when I deleted the installation it screwed up my fusion drive partitions. I've attached a couple of screenshots.

I have now have 2 volumes, both have 1TB, one has my information on it, the other is completely empty. My computer is only reading that I have 1tb of space though.

How do I get my fusion drive back to it's original state?

Thanks in advance!
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Also this is the report from when I ran 'diskutil list' in the terminal, see attached.

 

[Fishrrman]

The "absolutely, positively guaranteed to get it back" way:

1. Get an external drive
2. Use CarbonCopyCloner (FREE to download and use for 30 days) to clone the contents of your current, working Mac partition to the external drive, which should be bootable
3. BOOT FROM the external drive
4. Open disk utility and "aim it" at the INTERNAL drive. If there is a "view" menu, choose "show all devices" if that option is available.
5. ERASE the fusion drive (I'm not sure if this "splits" it or not. If it does, you will have to "re-fuse" the SSD and HDD portions using the terminal)
5. Now you should have a 2tb fusion drive that is (at the moment) empty.
6. Open CCC and "RE-clone" the contents of the backup BACK TO the internal drive.

When nothing else works, that will.