I'm running Unraid 7.0.1. One of the SSD drives in my cache pool is failing and I want to move to two nvme's instead of the two SSD's. I disabled the Docker and VM services, moved all of my appdata/domain/system shares the array using mover and then stopped the array. I tried:

1. In the 'main' tab, for the two cache drives after stopping the array, I changed the drives to the two nvme drives, then started the array. I get the Wrong Pool State error message

2. With the two old SSD's showing in the cache pool, I stopped the array and turned the server off, then unplugged the two SSD drives, rebooted and for both drives in the cache pool it showed, 'no device'. I changed those to the two nvme drives and started the array and get the Wrong Pool State message

3. I set both cache drives to 'no device', then started the array and still get the Wrong Pool State error

Am I doing something wrong? Attached is my diagnostics.

tower-diagnostics-20250520-1134.zip

Edited May 20, 20251 yr by MrDatum

There's a bug with 7.0.x removing pool devices, it has been fixed in 7.1, post the output from

btrfs fi show

9 hours ago, JorgeB said:

There's a bug with 7.0.x removing pool devices, it has been fixed in 7.1, post the output from

btrfs fi show

Ah, that clears up the mystery.

I ended up deleting the pool and recreating it and now all is well. Other than mover leaving duplicates on the array after setting up the cache pool and running mover with array-->cache, but that is a separate issue and one I can just clean up manually.