zfsonroot

Hi, I want to move the entire OS (GELI+ZFSOnRoot) to another disk. I had execute these commands to make this happen: Setup my new disk partition table (similar to old one): gpart create -s gpt nvd0 gpart add -a 1M -s 260M -t efi -l efiboot1 nvd0 gpart add -a 1M -s 4G -t freebsd-swap -l swap1...

Hey guys :D Is it possible to upgrade disks on a mirrored ZFS-on-root install? If it is possible, then is it risky? In my case I want to upgrade my 2x 250GB SSD's with 2x 500GB SSD's. Thanks in advance :)