June 9, 20215 yr How do I shrink a non-redundant 3 disks array pool? FAQ says this might be unofficially supported. Final goal is to remove this cache pool entirely.
June 9, 20215 yr Author After the disk will be taken out of the pool, I will copy data from the pool to that disk in order to allow the next pool shrink.
June 10, 20215 yr Just move the data to the array, reconfigure your pools however you want, and move the data back to pools.
June 10, 20215 yr Author That's a lot of data and time to copy twice instead of once. Any other way is better.
June 10, 20215 yr I wouldn't recommend using the GUI since it might not work, you can still do it manually, if you want to do that I can post instructions, please post diags and let me know which device you want to remove first.
June 10, 20215 yr Author OK for CLI. I was quite sure the GUI doesn't support this. Pool is chiapool, 3x12TB disks. I don't care which one is removed from the array. I began to read how to do that and if i got this right I should run: btrfs device delete /dev/sdw1 /mnt/chiapool juno-diagnostics-20210610-1531.zip
June 10, 20215 yr 1 hour ago, Gico said: btrfs device delete /dev/sdw1 /mnt/chiapool That's it, but there's one more step once it finishes, you can't just unassign the removed device and start array, you need to stop array, unassign all 3 pool devices, start array (check "I'm sure box") to make Unraid forget that pool config, then stop array, re-assign the two remaining pool devices and start array again.
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