Initialize before certify?
Hi. Does it matter?
Yes only because certify wipes the disk to "new" condition, so anything on there is removed. You need to initialize after a certify to use it again.
these are two totally different functions. Certify is a long term test to ensure your drives are reliable. You only need to certify once. It leaves the drives totally zero'd out.
Initialize places a partition map on the disks, so you can create a SoftRAID volume.