I've moved up from the Absolute Beginners section. I've succeeded in building a RAIDZ2 pool using Release 1.4.5 with 4 disks in my 2010 Mac Pro running El Capitan. I even created a couple of datasets, loaded a bit of data, and ran a scrub. So far everything works well.
But now I want to replace the 1 TB drives with larger drives. I want to remove one drive at a time and replace it with a larger drive in the same drive bay. I know that I'll need to resilver before repeating the process. But what I'm not sure of is the commands to use.
If this fails I can replace the data from one of several backups.
Thanks.