Resize Linux RAID (grow only)
My server was running 2x 1TB disks in a mirror, and I needed more space, so I purchased 2x 2TB disks. The following steps demonstrate how I expanded the RAID volume to 2TB without data loss. My RAID array /dev/md1 consisted of two RAID members, /dev/sdc and /dev/sdd. First step was to remove one of…