I'm planing to ad a new larger parity drive to my array.
Today I have all 10TB drives one parity drive and six data drives, and I plan to add a new 18TB parity to be able to swap my existing data drives to larger ones in the future, and after the pari check is don I'll add the old parity drive as a data drive.
My question is how will the parity check work when the th parity drive is 18TB, will it do a 18TB parity check taking almost twice the time as previous even thoght the data drives are only 10TB, or will it do a 10TB parity check untill I actually add a larger data drive?