On my NAS, I've two HD 1To as RAID1C. I bought two others HD, but at 2To.
I want to replace both 1To by 2To.
The process to growfs on Raid:
# fdisk -iy sd1; I presume HD 2To.
# disklabel sd0 > layout
# disklabel -R sd1 layout
# disklabel -E sd1 ; and option 'm'
# growfs sd1a
# fsck sd1a
# bioctl -R /dev/sd1a sd2 ; rebuild RAID
Does the process seem correct?