Hi there,

 

As the title states, I'm trying to reduce my btrfs cache pool to 1 drive from 2. I followed some instructions on other post, but I'm not able to get the pool down to 1 drive. Here's what I did so far:

 

1. Converted pool to raid 1 so data on both drives are the same (confirmed balance was done and same data was on both drives).
2. Remove 1 drive from pool and started the array after checking the checkbox I want to do this.
3. Once I did that cache pool said it did not have a valid file format.
4. If I try to add the 2nd drive back into the pool there is a warning message the 2nd drive will be erased.
5. To get back up and running I ended up removing the cache pool entirely started array, then stopped array and added both drives as a new pool and started array and I was back up. I still am unable to remove the 2nd drive though.

 

Is there a step I'm missing here?

 

monolith-diagnostics-20241028-1153.zip

Edited October 28, 20241 yr by JGhost7

9 minutes ago, JGhost7 said:

Remove 1 drive from pool and started the array after checking the checkbox I want to do this.

That should work for the current pool, try it and post new diags if it fails.

Thanks for the reply. I tried it again and it seems to have worked. Not sure why it didn't previous.