How to preclear assign disk?


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One of my disk is failing. Bought new one to replace. Mistakenly rebuild on new disk without preclear. Stopped the rebuild. Try preclear. Unable to preclear. It says "The disk '/dev/sdf' is part of unRAID's array, or is assigned as a cache device." The array has already been stopped and the disk is set to no device.

 

How do I force preclear? Im using preclear plugin for unraid 6.

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You don't need to pre-clear a disk before rebuilding onto it and having got this far I'd just let it continue to rebuild, since I consider the unprotected array to be more of a risk than that of an un-tested disk. However, if you want to pre-clear it as a means of testing it you need to unassign it and then start the array in order to register it as missing again. Then you should be able to pre-clear it.

 

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