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I'm removing a failed drive with no plans to replace (data was moved before failure).  So now it is physically out of the system, and I want to shrink the array.  Following the wiki all I need to do is Tools->New Config?  is there any risk I will lose my array data or is this safe?  (the new config thing is throwing me off....)

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The only thing New Config does is allow you to change your disk assignments and optionally rebuild parity.

 

Tools - New Config, Retain All.

Unassign disk to be removed.

 

Since you are removing a disk parity will need to be rebuilt, so DON'T check the parity valid box. (Yes I know the disk was empty but it was not clear).

 

Start array to begin parity rebuild.

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