22 hours ago22 hr Hi - I'm trying to reduce my pooled cache drives (500 GB SSD's) from 2 to 1, and use the 2nd drive for Tdarr. (I'm tired of having the cache fill up and crash my Dockers etc). But when I follow the unRaid instructions for removing a disk from the cache pool, I get this response when I try to re-enable the array - "Wrong Pool Statecache - too many wrong or missing devices" . Diagnostics attached tower-diagnostics-20261023-2013.zip
21 hours ago21 hr Community Expert Your pool is using the single profile, so you cannot remove a device like that. You can click on the pool, balance it to raid1, then stop the array and remove one device.
19 hours ago19 hr Author Thanks Jorge, but I'm unable to format and mount the disks - diags attached tower-diagnostics-20261023-2323.zip
18 hours ago18 hr Community Expert 29 minutes ago, Steviewunda said:Thanks Jorge, but I'm unable to format and mount the disksCan you expand on what you mean? Is this after the balance?
18 hours ago18 hr Author I performed the balance, stopped the array, and removed one SSD drive (not physically). I was then unable to format and mount the disks
18 hours ago18 hr Community Expert Solution The problem was that at some point you mounted the second cache SSD with the Unassigned Devices plugin while it was still part of the pool. That mounted the whole cache filesystem under /mnt/disks, and it was still mounted there, so Unraid could not remove the device or format the pool, because the devices are in use. The reboot resolved the issue.
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