2 articles Linux RAID

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…

1 Preliminary Note In this example I have two hard drives, /dev/sda and /dev/sdb, with the partitions /dev/sda1 and /dev/sda2 as well as /dev/sdb1 and /dev/sdb2. /dev/sda1 and /dev/sdb1 make up the RAID1 array /dev/md0. /dev/sda2 and /dev/sdb2 make up the RAID1 array /dev/md1. /dev/sda1 + /dev/sdb1 = /dev/md0 /dev/sda2 + /dev/sdb2 = /dev/md1 /dev/sdb…