Upgrade parity drive, then use old parity drive in the array

[ThEgOg]

Hi:)

 

My usb flash drive decided to die yesterday, now got it all back up and running with a new usb stick.

 

also now seen one of my older 1tb samsung drives has errors on it, i need more space anyway, so plan is to replace the current 3tb wd green parity with a 4tb wd red drive. Then swap the old 1tb samsung in the array for the 3tb wd green.

 

i'm happy with replacing the parity, what is the best/easiest way of getting the 3tb into the array? will it need formatting externally somehow?

 

many thanks for your time 

[JorgeB]

If the 1TB is marginal/failing it's best to use the parity swap procedure.