I currently have a RAIDZ1 made up of 4x2TB drives. I've recently decommissioned an old 4Bay NAS that also at 4x2TB drives in it. I've mounted the new drives and they are ready to go, what I would like to do is take these 4 drives and make it a mirror of the existing RAIDZ1 set. Is this something that is possible? If so, how to do this without destroying the existing RAIDZ1 array.
Thanks
Thanks