09.22.05
How to add disks to existing RAID1 array
This is just a note to self for later when I’ll need to do this (once my second disk gets plugged into my new hosted machine):
for i in 0 1 2 3;do /sbin/mdadm --grow /dev/md$i --raid-disks=2;done
/sbin/mdadm --manage /dev/md0 --add /dev/sdb1
/sbin/mdadm --manage /dev/md1 --add /dev/sdb2
/sbin/mdadm --manage /dev/md2 --add /dev/sdb3
/sbin/mdadm --manage /dev/md3 --add /dev/sdb4
