Can I Upgrade My 1 Parity Drive Temporarily Using The Unused "Parity 2" Slot? in General Support Posted January 24 18 hours ago, JorgeB said: You don't even need to do a new config, just unassign parity and start the array. Yup, worked like a champ. Got my 4TB as parity now without risking issues during the 15 hour rebuild. Maybe when I get another 4TB, I'll set that as Parity 1 then remove Parity 2 for optimum performance. Thanks for the help.