That’s very cool. Makes planning much simpler.

Does anyone know if its possible to perform a disk replacement in RAIDZ1 without taking a disk out of the array first? E.g. i have a 3 disk raidz1 array and I want to replace a disk before it fails, so first I add the new disk, and have the data sync over it before then pulling the old disk out. So basically the array is never degraded and always has the 1 disk redundancy.