I currently have a production server with four drives in raidz2 and a backup server that is identical in configuration and hardware.
I'm currently doing a transfer of data using rsync between the production server and the backup server.
I'm finding that its painfully slow, even over LAN.
Idea: What if I remove two drives from the production server and place them in the backup server to resilver the backup server drives, and then have the backup server resilver its own two last two drives? Would that make the transfer go significantly faster -- Is this a smart idea? Anyone know how to do this (I'm worried that I might resilver and lose all my data if I issue the wrong commands).