April 30, 20242 yr So I had a Cache drive added as a single pool drive with app data and other stuff on it. I wanted to add another SSD. so I stopped the array and put cache pool to 2 slots and added the other drive thinking it would increase the capacity. Both drives shows Unmountable: Unsupported or no file system. So I stopped the array and removed the new cache drive. nothing has been formatted. But the original SSD cache drive still shows Unmountable: Unsupported or no file system. Can I get this back to the original state?
April 30, 20242 yr Author Solution Its ok... just realised I never changed the slots back to 1 slot. changing that brought it back to normal. PHEW!!!!
April 30, 20242 yr Community Expert What file system is on the cache? To switch to a multi-drive pool it needs to be btrfs (or ZFS). Btrfs pools can have new drives added dynamically. It cannot be xfs which is limited to a being a single drive.
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