October 8, 20196 yr I've got a raid 0 cache pool with two drives. After a SATA error, drive 1 failed and I had to reboot the system. However, now unraid doesn't "get" that the cache pool consisted of two drives instead of only one and when I want to add drive 1 to the pool, it wants to add the drive as a new device, wiping all the drive's data. I already followed to copy the content of the cache pool (which mounts correctly if I mount it manually) to a save place but some errors occurred during the copy process, so I'd like to not to restore the data from the saved files. Is there a way to "force" unraid into accepting the drive as existing drive?
October 8, 20196 yr Community Expert Stop the array, if Docker/VM services are using the cache pool disable them, unassign all cache devices, start array to make Unraid "forget" current cache config, stop array, reassign all cache devices, re-enable Docker/VMs if needed, start array.
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