Replacing two parity drives of 8TB with two of 6TB


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I have two parity drives that are each 8TB.

 

Since I no longer have 8TB data drives in the array, I want to swap these out and replace them with two 6TB drives.

 

My largest data drive is 6TB so that fits.

 

Would I just do this:

 

Stop array

Got to Tools, New Config

Set "Retain current configuration" to "All"

Replace assignments for 8TB parity drives with the 6TB drives

Ensure that "Parity is already valid" is not checked.

Start array

 

Parity rebuild starts

 

?

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Just now, trurl said:

Another possibility would be to do them one at a time and so keep parity protection throughout.

That is more complicated though. You would have to New Config without one parity and trust the other, then add the other parity disk to rebuild it. Then repeat to do the other.

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